Merge branch 'master' into tests/01293_client_interactive_vertical_multiline

docker/keeper/Dockerfile

@@ -32,7 +32,7 @@ RUN arch=${TARGETARCH:-amd64} \
     esac
 
 ARG REPOSITORY="https://s3.amazonaws.com/clickhouse-builds/22.4/31c367d3cd3aefd316778601ff6565119fe36682/package_release"
-ARG VERSION="23.7.1.2470"
+ARG VERSION="23.7.2.25"
 ARG PACKAGES="clickhouse-keeper"
 
 # user/group precreated explicitly with fixed uid/gid on purpose.

docker/server/Dockerfile.alpine

@@ -33,7 +33,7 @@ RUN arch=${TARGETARCH:-amd64} \
 # lts / testing / prestable / etc
 ARG REPO_CHANNEL="stable"
 ARG REPOSITORY="https://packages.clickhouse.com/tgz/${REPO_CHANNEL}"
-ARG VERSION="23.7.1.2470"
+ARG VERSION="23.7.2.25"
 ARG PACKAGES="clickhouse-client clickhouse-server clickhouse-common-static"
 
 # user/group precreated explicitly with fixed uid/gid on purpose.

docker/server/Dockerfile.ubuntu

@@ -23,7 +23,7 @@ RUN sed -i "s|http://archive.ubuntu.com|${apt_archive}|g" /etc/apt/sources.list
 
 ARG REPO_CHANNEL="stable"
 ARG REPOSITORY="deb [signed-by=/usr/share/keyrings/clickhouse-keyring.gpg] https://packages.clickhouse.com/deb ${REPO_CHANNEL} main"
-ARG VERSION="23.7.1.2470"
+ARG VERSION="23.7.2.25"
 ARG PACKAGES="clickhouse-client clickhouse-server clickhouse-common-static"
 
 # set non-empty deb_location_url url to create a docker image

docs/README.md

@@ -200,8 +200,8 @@ Templates:
 - [Server Setting](_description_templates/template-server-setting.md)
 - [Database or Table engine](_description_templates/template-engine.md)
 - [System table](_description_templates/template-system-table.md)
-- [Data type](_description_templates/data-type.md)
-- [Statement](_description_templates/statement.md)
+- [Data type](_description_templates/template-data-type.md)
+- [Statement](_description_templates/template-statement.md)
 
 
 <a name="how-to-build-docs"/>

docs/changelogs/v23.7.2.25-stable.md

@@ -0,0 +1,31 @@
+---
+sidebar_position: 1
+sidebar_label: 2023
+---
+
+# 2023 Changelog
+
+### ClickHouse release v23.7.2.25-stable (8dd1107b032) FIXME as compared to v23.7.1.2470-stable (a70127baecc)
+
+#### Backward Incompatible Change
+* Backported in [#52850](https://github.com/ClickHouse/ClickHouse/issues/52850): If a dynamic disk contains a name, it should be specified as `disk = disk(name = 'disk_name'`, ...) in disk function arguments. In previous version it could be specified as `disk = disk_<disk_name>(...)`, which is no longer supported. [#52820](https://github.com/ClickHouse/ClickHouse/pull/52820) ([Kseniia Sumarokova](https://github.com/kssenii)).
+
+#### Build/Testing/Packaging Improvement
+* Backported in [#52913](https://github.com/ClickHouse/ClickHouse/issues/52913): Add `clickhouse-keeper-client` symlink to the clickhouse-server package. [#51882](https://github.com/ClickHouse/ClickHouse/pull/51882) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+
+* Fix binary arithmetic for Nullable(IPv4) [#51642](https://github.com/ClickHouse/ClickHouse/pull/51642) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* Support IPv4 and IPv6 as dictionary attributes [#51756](https://github.com/ClickHouse/ClickHouse/pull/51756) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* init and destroy ares channel on demand.. [#52634](https://github.com/ClickHouse/ClickHouse/pull/52634) ([Arthur Passos](https://github.com/arthurpassos)).
+* Fix crash in function `tuple` with one sparse column argument [#52659](https://github.com/ClickHouse/ClickHouse/pull/52659) ([Anton Popov](https://github.com/CurtizJ)).
+* Fix data race in Keeper reconfiguration [#52804](https://github.com/ClickHouse/ClickHouse/pull/52804) ([Antonio Andelic](https://github.com/antonio2368)).
+* clickhouse-keeper: fix implementation of server with poll() [#52833](https://github.com/ClickHouse/ClickHouse/pull/52833) ([Andy Fiddaman](https://github.com/citrus-it)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Rename setting disable_url_encoding to enable_url_encoding and add a test [#52656](https://github.com/ClickHouse/ClickHouse/pull/52656) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix bugs and better test for SYSTEM STOP LISTEN [#52680](https://github.com/ClickHouse/ClickHouse/pull/52680) ([Nikolay Degterinsky](https://github.com/evillique)).
+* Increase min protocol version for sparse serialization [#52835](https://github.com/ClickHouse/ClickHouse/pull/52835) ([Anton Popov](https://github.com/CurtizJ)).
+* Docker improvements [#52869](https://github.com/ClickHouse/ClickHouse/pull/52869) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
+

docs/en/development/continuous-integration.md

@@ -141,6 +141,10 @@ Runs [stateful functional tests](tests.md#functional-tests). Treat them in the s
 Runs [integration tests](tests.md#integration-tests).
 
 
+## Bugfix validate check
+Checks that either a new test (functional or integration) or there some changed tests that fail with the binary built on master branch. This check is triggered when pull request has "pr-bugfix" label.
+
+
 ## Stress Test
 Runs stateless functional tests concurrently from several clients to detect
 concurrency-related errors. If it fails:

docs/en/engines/table-engines/integrations/deltalake.md

@@ -22,7 +22,7 @@ CREATE TABLE deltalake
 - `url` — Bucket url with path to the existing Delta Lake table.
 - `aws_access_key_id`, `aws_secret_access_key` - Long-term credentials for the [AWS](https://aws.amazon.com/) account user.  You can use these to authenticate your requests. Parameter is optional. If credentials are not specified, they are used from the configuration file.
 
-Engine parameters can be specified using [Named Collections](../../../operations/named-collections.md)
+Engine parameters can be specified using [Named Collections](/docs/en/operations/named-collections.md).
 
 **Example**
 

docs/en/engines/table-engines/integrations/hudi.md

@@ -22,7 +22,7 @@ CREATE TABLE hudi_table
 - `url` — Bucket url with the path to an existing Hudi table.
 - `aws_access_key_id`, `aws_secret_access_key` - Long-term credentials for the [AWS](https://aws.amazon.com/) account user.  You can use these to authenticate your requests. Parameter is optional. If credentials are not specified, they are used from the configuration file.
 
-Engine parameters can be specified using [Named Collections](../../../operations/named-collections.md)
+Engine parameters can be specified using [Named Collections](/docs/en/operations/named-collections.md).
 
 **Example**
 

docs/en/operations/utilities/clickhouse-keeper-client.md

@@ -51,7 +51,3 @@ keeper foo bar
 -   `rmr <path>` -- Recursively deletes path. Confirmation required
 -   `flwc <command>` -- Executes four-letter-word command
 -   `help` -- Prints this message
--   `get_stat [path]` -- Returns the node's stat (default `.`)
--   `find_super_nodes <threshold> [path]` -- Finds nodes with number of children larger than some threshold for the given path (default `.`)
--   `delete_stable_backups` -- Deletes ClickHouse nodes used for backups that are now inactive
--   `find_big_family [path] [n]` -- Returns the top n nodes with the biggest family in the subtree (default path = `.` and n = 10)

docs/en/sql-reference/statements/alter/index.md

@@ -36,6 +36,8 @@ These `ALTER` statements modify entities related to role-based access control:
 
 [ALTER TABLE ... MODIFY COMMENT](/docs/en/sql-reference/statements/alter/comment.md) statement adds, modifies, or removes comments to the table, regardless if it was set before or not.
 
+[ALTER NAMED COLLECTION](/docs/en/sql-reference/statements/alter/named-collection.md) statement modifies [Named Collections](/docs/en/operations/named-collections.md).
+
 ## Mutations
 
 `ALTER` queries that are intended to manipulate table data are implemented with a mechanism called “mutations”, most notably [ALTER TABLE … DELETE](/docs/en/sql-reference/statements/alter/delete.md) and [ALTER TABLE … UPDATE](/docs/en/sql-reference/statements/alter/update.md). They are asynchronous background processes similar to merges in [MergeTree](/docs/en/engines/table-engines/mergetree-family/index.md) tables that to produce new “mutated” versions of parts.

docs/en/sql-reference/statements/alter/named-collection.md

@@ -0,0 +1,30 @@
+---
+slug: /en/sql-reference/statements/alter/named-collection
+sidebar_label: NAMED COLLECTION
+---
+
+# ALTER NAMED COLLECTION
+
+This query intends to modify already existing named collections.
+
+**Syntax**
+
+```sql
+ALTER NAMED COLLECTION [IF EXISTS] name [ON CLUSTER cluster]
+[ SET
+key_name1 = 'some value',
+key_name2 = 'some value',
+key_name3 = 'some value',
+... ] |
+[ DELETE key_name4, key_name5, ... ]
+```
+
+**Example**
+
+```sql
+CREATE NAMED COLLECTION foobar AS a = '1', b = '2';
+
+ALTER NAMED COLLECTION foobar SET a = '2', c = '3';
+
+ALTER NAMED COLLECTION foobar DELETE b;
+```

docs/en/sql-reference/statements/create/index.md

@@ -8,13 +8,14 @@ sidebar_label: CREATE
 
 Create queries make a new entity of one of the following kinds:
 
-- [DATABASE](../../../sql-reference/statements/create/database.md)
-- [TABLE](../../../sql-reference/statements/create/table.md)
-- [VIEW](../../../sql-reference/statements/create/view.md)
-- [DICTIONARY](../../../sql-reference/statements/create/dictionary.md)
-- [FUNCTION](../../../sql-reference/statements/create/function.md)
-- [USER](../../../sql-reference/statements/create/user.md)
-- [ROLE](../../../sql-reference/statements/create/role.md)
-- [ROW POLICY](../../../sql-reference/statements/create/row-policy.md)
-- [QUOTA](../../../sql-reference/statements/create/quota.md)
-- [SETTINGS PROFILE](../../../sql-reference/statements/create/settings-profile.md)
+- [DATABASE](/docs/en/sql-reference/statements/create/database.md)
+- [TABLE](/docs/en/sql-reference/statements/create/table.md)
+- [VIEW](/docs/en/sql-reference/statements/create/view.md)
+- [DICTIONARY](/docs/en/sql-reference/statements/create/dictionary.md)
+- [FUNCTION](/docs/en/sql-reference/statements/create/function.md)
+- [USER](/docs/en/sql-reference/statements/create/user.md)
+- [ROLE](/docs/en/sql-reference/statements/create/role.md)
+- [ROW POLICY](/docs/en/sql-reference/statements/create/row-policy.md)
+- [QUOTA](/docs/en/sql-reference/statements/create/quota.md)
+- [SETTINGS PROFILE](/docs/en/sql-reference/statements/create/settings-profile.md)
+- [NAMED COLLECTION](/docs/en/sql-reference/statements/create/named-collection.md)

docs/en/sql-reference/statements/create/named-collection.md

@@ -0,0 +1,34 @@
+---
+slug: /en/sql-reference/statements/create/named-collection
+sidebar_label: NAMED COLLECTION
+---
+
+# CREATE NAMED COLLECTION
+
+Creates a new named collection.
+
+**Syntax**
+
+```sql
+CREATE NAMED COLLECTION [IF NOT EXISTS] name [ON CLUSTER cluster] AS
+key_name1 = 'some value',
+key_name2 = 'some value',
+key_name3 = 'some value',
+...
+```
+
+**Example**
+
+```sql
+CREATE NAMED COLLECTION foobar AS a = '1', b = '2';
+```
+
+**Related statements**
+
+- [CREATE NAMED COLLECTION](https://clickhouse.com/docs/en/sql-reference/statements/alter/named-collection)
+- [DROP NAMED COLLECTION](https://clickhouse.com/docs/en/sql-reference/statements/drop#drop-function)
+
+
+**See Also**
+
+- [Named collections guide](/docs/en/operations/named-collections.md)

docs/en/sql-reference/statements/drop.md

@@ -119,3 +119,20 @@ DROP FUNCTION [IF EXISTS] function_name [on CLUSTER cluster]
 CREATE FUNCTION linear_equation AS (x, k, b) -> k*x + b;
 DROP FUNCTION linear_equation;
 ```
+
+## DROP NAMED COLLECTION
+
+Deletes a named collection.
+
+**Syntax**
+
+``` sql
+DROP NAMED COLLECTION [IF EXISTS] name [on CLUSTER cluster]
+```
+
+**Example**
+
+``` sql
+CREATE NAMED COLLECTION foobar AS a = '1', b = '2';
+DROP NAMED COLLECTION foobar;
+```

docs/en/sql-reference/statements/system.md

@@ -314,6 +314,22 @@ Provides possibility to start background fetch tasks from replication queues whi
 SYSTEM START REPLICATION QUEUES [ON CLUSTER cluster_name] [[db.]replicated_merge_tree_family_table_name]
 ```
 
+### STOP PULLING REPLICATION LOG
+
+Stops loading new entries from replication log to replication queue in a `ReplicatedMergeTree` table.
+
+``` sql
+SYSTEM STOP PULLING REPLICATION LOG [ON CLUSTER cluster_name] [[db.]replicated_merge_tree_family_table_name]
+```
+
+### START PULLING REPLICATION LOG
+
+Cancels `SYSTEM STOP PULLING REPLICATION LOG`.
+
+``` sql
+SYSTEM START PULLING REPLICATION LOG [ON CLUSTER cluster_name] [[db.]replicated_merge_tree_family_table_name]
+```
+
 ### SYNC REPLICA
 
 Wait until a `ReplicatedMergeTree` table will be synced with other replicas in a cluster, but no more than `receive_timeout` seconds.

docs/en/sql-reference/table-functions/iceberg.md

@@ -21,7 +21,7 @@ iceberg(url [,aws_access_key_id, aws_secret_access_key] [,format] [,structure])
 - `format` — The [format](/docs/en/interfaces/formats.md/#formats) of the file. By default `Parquet` is used.
 - `structure` — Structure of the table. Format `'column1_name column1_type, column2_name column2_type, ...'`.
 
-Engine parameters can be specified using [Named Collections](../../operations/named-collections.md)
+Engine parameters can be specified using [Named Collections](/docs/en/operations/named-collections.md).
 
 **Returned value**
 

programs/keeper-client/Commands.cpp

@@ -1,6 +1,5 @@
 
 #include "Commands.h"
-#include <queue>
 #include "KeeperClient.h"
 
 
@@ -25,18 +24,8 @@ void LSCommand::execute(const ASTKeeperQuery * query, KeeperClient * client) con
     else
         path = client->cwd;
 
-    auto children = client->zookeeper->getChildren(path);
-    std::sort(children.begin(), children.end());
-
-    bool need_space = false;
-    for (const auto & child : children)
-    {
-        if (std::exchange(need_space, true))
-            std::cout << " ";
-
-        std::cout << child;
-    }
-
+    for (const auto & child : client->zookeeper->getChildren(path))
+        std::cout << child << " ";
     std::cout << "\n";
 }
 
@@ -141,173 +130,6 @@ void GetCommand::execute(const ASTKeeperQuery * query, KeeperClient * client) co
     std::cout << client->zookeeper->get(client->getAbsolutePath(query->args[0].safeGet<String>())) << "\n";
 }
 
-bool GetStatCommand::parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const
-{
-    String arg;
-    if (!parseKeeperPath(pos, expected, arg))
-        return true;
-
-    node->args.push_back(std::move(arg));
-    return true;
-}
-
-void GetStatCommand::execute(const ASTKeeperQuery * query, KeeperClient * client) const
-{
-    Coordination::Stat stat;
-    String path;
-    if (!query->args.empty())
-        path = client->getAbsolutePath(query->args[0].safeGet<String>());
-    else
-        path = client->cwd;
-
-    client->zookeeper->get(path, &stat);
-
-    std::cout << "cZxid = " << stat.czxid << "\n";
-    std::cout << "mZxid = " << stat.mzxid << "\n";
-    std::cout << "pZxid = " << stat.pzxid << "\n";
-    std::cout << "ctime = " << stat.ctime << "\n";
-    std::cout << "mtime = " << stat.mtime << "\n";
-    std::cout << "version = " << stat.version << "\n";
-    std::cout << "cversion = " << stat.cversion << "\n";
-    std::cout << "aversion = " << stat.aversion << "\n";
-    std::cout << "ephemeralOwner = " << stat.ephemeralOwner << "\n";
-    std::cout << "dataLength = " << stat.dataLength << "\n";
-    std::cout << "numChildren = " << stat.numChildren << "\n";
-}
-
-bool FindSuperNodes::parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const
-{
-    ASTPtr threshold;
-    if (!ParserUnsignedInteger{}.parse(pos, threshold, expected))
-        return false;
-
-    node->args.push_back(threshold->as<ASTLiteral &>().value);
-
-    String path;
-    if (!parseKeeperPath(pos, expected, path))
-        path = ".";
-
-    node->args.push_back(std::move(path));
-    return true;
-}
-
-void FindSuperNodes::execute(const ASTKeeperQuery * query, KeeperClient * client) const
-{
-    auto threshold = query->args[0].safeGet<UInt64>();
-    auto path = client->getAbsolutePath(query->args[1].safeGet<String>());
-
-    Coordination::Stat stat;
-    client->zookeeper->get(path, &stat);
-
-    if (stat.numChildren >= static_cast<Int32>(threshold))
-    {
-        std::cout << static_cast<String>(path) << "\t" << stat.numChildren << "\n";
-        return;
-    }
-
-    auto children = client->zookeeper->getChildren(path);
-    std::sort(children.begin(), children.end());
-    for (const auto & child : children)
-    {
-        auto next_query = *query;
-        next_query.args[1] = DB::Field(path / child);
-        execute(&next_query, client);
-    }
-}
-
-bool DeleteStableBackups::parse(IParser::Pos & /* pos */, std::shared_ptr<ASTKeeperQuery> & /* node */, Expected & /* expected */) const
-{
-    return true;
-}
-
-void DeleteStableBackups::execute(const ASTKeeperQuery * /* query */, KeeperClient * client) const
-{
-    client->askConfirmation(
-        "You are going to delete all inactive backups in /clickhouse/backups.",
-        [client]
-        {
-            fs::path backup_root = "/clickhouse/backups";
-            auto backups = client->zookeeper->getChildren(backup_root);
-            std::sort(backups.begin(), backups.end());
-
-            for (const auto & child : backups)
-            {
-                auto backup_path = backup_root / child;
-                std::cout << "Found backup " << backup_path << ", checking if it's active\n";
-
-                String stage_path = backup_path / "stage";
-                auto stages = client->zookeeper->getChildren(stage_path);
-
-                bool is_active = false;
-                for (const auto & stage : stages)
-                {
-                    if (startsWith(stage, "alive"))
-                    {
-                        is_active = true;
-                        break;
-                    }
-                }
-
-                if (is_active)
-                {
-                    std::cout << "Backup " << backup_path << " is active, not going to delete\n";
-                    continue;
-                }
-
-                std::cout << "Backup " << backup_path << " is not active, deleting it\n";
-                client->zookeeper->removeRecursive(backup_path);
-            }
-        });
-}
-
-bool FindBigFamily::parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const
-{
-    String path;
-    if (!parseKeeperPath(pos, expected, path))
-        path = ".";
-
-    node->args.push_back(std::move(path));
-
-    ASTPtr count;
-    if (ParserUnsignedInteger{}.parse(pos, count, expected))
-        node->args.push_back(count->as<ASTLiteral &>().value);
-    else
-        node->args.push_back(UInt64(10));
-
-    return true;
-}
-
-void FindBigFamily::execute(const ASTKeeperQuery * query, KeeperClient * client) const
-{
-    auto path = client->getAbsolutePath(query->args[0].safeGet<String>());
-    auto n = query->args[1].safeGet<UInt64>();
-
-    std::vector<std::tuple<Int32, String>> result;
-
-    std::queue<fs::path> queue;
-    queue.push(path);
-    while (!queue.empty())
-    {
-        auto next_path = queue.front();
-        queue.pop();
-
-        auto children = client->zookeeper->getChildren(next_path);
-        std::transform(children.cbegin(), children.cend(), children.begin(), [&](const String & child) { return next_path / child; });
-
-        auto response = client->zookeeper->get(children);
-
-        for (size_t i = 0; i < response.size(); ++i)
-        {
-            result.emplace_back(response[i].stat.numChildren, children[i]);
-            queue.push(children[i]);
-        }
-    }
-
-    std::sort(result.begin(), result.end(), std::greater());
-    for (UInt64 i = 0; i < std::min(result.size(), static_cast<size_t>(n)); ++i)
-        std::cout << std::get<1>(result[i]) << "\t" << std::get<0>(result[i]) << "\n";
-}
-
 bool RMCommand::parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const
 {
     String arg;
@@ -348,7 +170,7 @@ bool HelpCommand::parse(IParser::Pos & /* pos */, std::shared_ptr<ASTKeeperQuery
 void HelpCommand::execute(const ASTKeeperQuery * /* query */, KeeperClient * /* client */) const
 {
     for (const auto & pair : KeeperClient::commands)
-        std::cout << pair.second->generateHelpString() << "\n";
+        std::cout << pair.second->getHelpMessage() << "\n";
 }
 
 bool FourLetterWordCommand::parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const

programs/keeper-client/Commands.h

@@ -21,12 +21,6 @@ public:
     virtual String getName() const = 0;
 
     virtual ~IKeeperClientCommand() = default;
-
-    String generateHelpString() const
-    {
-        return fmt::vformat(getHelpMessage(), fmt::make_format_args(getName()));
-    }
-
 };
 
 using Command = std::shared_ptr<IKeeperClientCommand>;
@@ -40,7 +34,7 @@ class LSCommand : public IKeeperClientCommand
 
     void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
 
-    String getHelpMessage() const override { return "{} [path] -- Lists the nodes for the given path (default: cwd)"; }
+    String getHelpMessage() const override { return "ls [path] -- Lists the nodes for the given path (default: cwd)"; }
 };
 
 class CDCommand : public IKeeperClientCommand
@@ -51,7 +45,7 @@ class CDCommand : public IKeeperClientCommand
 
     void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
 
-    String getHelpMessage() const override { return "{} [path] -- Change the working path (default `.`)"; }
+    String getHelpMessage() const override { return "cd [path] -- Change the working path (default `.`)"; }
 };
 
 class SetCommand : public IKeeperClientCommand
@@ -64,7 +58,7 @@ class SetCommand : public IKeeperClientCommand
 
     String getHelpMessage() const override
     {
-        return "{} <path> <value> [version] -- Updates the node's value. Only update if version matches (default: -1)";
+        return "set <path> <value> [version] -- Updates the node's value. Only update if version matches (default: -1)";
     }
 };
 
@@ -76,7 +70,7 @@ class CreateCommand : public IKeeperClientCommand
 
     void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
 
-    String getHelpMessage() const override { return "{} <path> <value> -- Creates new node"; }
+    String getHelpMessage() const override { return "create <path> <value> -- Creates new node"; }
 };
 
 class GetCommand : public IKeeperClientCommand
@@ -87,63 +81,9 @@ class GetCommand : public IKeeperClientCommand
 
     void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
 
-    String getHelpMessage() const override { return "{} <path> -- Returns the node's value"; }
+    String getHelpMessage() const override { return "get <path> -- Returns the node's value"; }
 };
 
-class GetStatCommand : public IKeeperClientCommand
-{
-    String getName() const override { return "get_stat"; }
-
-    bool parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const override;
-
-    void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
-
-    String getHelpMessage() const override { return "{} [path] -- Returns the node's stat (default `.`)"; }
-};
-
-class FindSuperNodes : public IKeeperClientCommand
-{
-    String getName() const override { return "find_super_nodes"; }
-
-    bool parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const override;
-
-    void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
-
-    String getHelpMessage() const override
-    {
-        return "{} <threshold> [path] -- Finds nodes with number of children larger than some threshold for the given path (default `.`)";
-    }
-};
-
-class DeleteStableBackups : public IKeeperClientCommand
-{
-    String getName() const override { return "delete_stable_backups"; }
-
-    bool parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const override;
-
-    void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
-
-    String getHelpMessage() const override
-    {
-        return "{} -- Deletes ClickHouse nodes used for backups that are now inactive";
-    }
-};
-
-class FindBigFamily : public IKeeperClientCommand
-{
-    String getName() const override { return "find_big_family"; }
-
-    bool parse(IParser::Pos & pos, std::shared_ptr<ASTKeeperQuery> & node, Expected & expected) const override;
-
-    void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
-
-    String getHelpMessage() const override
-    {
-        return "{} [path] [n] -- Returns the top n nodes with the biggest family in the subtree (default path = `.` and n = 10)";
-    }
-};
-
-
 class RMCommand : public IKeeperClientCommand
 {
     String getName() const override { return "rm"; }
@@ -152,7 +92,7 @@ class RMCommand : public IKeeperClientCommand
 
     void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
 
-    String getHelpMessage() const override { return "{} <path> -- Remove the node"; }
+    String getHelpMessage() const override { return "remove <path> -- Remove the node"; }
 };
 
 class RMRCommand : public IKeeperClientCommand
@@ -163,7 +103,7 @@ class RMRCommand : public IKeeperClientCommand
 
     void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
 
-    String getHelpMessage() const override { return "{} <path> -- Recursively deletes path. Confirmation required"; }
+    String getHelpMessage() const override { return "rmr <path> -- Recursively deletes path. Confirmation required"; }
 };
 
 class HelpCommand : public IKeeperClientCommand
@@ -174,7 +114,7 @@ class HelpCommand : public IKeeperClientCommand
 
     void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
 
-    String getHelpMessage() const override { return "{} -- Prints this message"; }
+    String getHelpMessage() const override { return "help -- Prints this message"; }
 };
 
 class FourLetterWordCommand : public IKeeperClientCommand
@@ -185,7 +125,7 @@ class FourLetterWordCommand : public IKeeperClientCommand
 
     void execute(const ASTKeeperQuery * query, KeeperClient * client) const override;
 
-    String getHelpMessage() const override { return "{} <command> -- Executes four-letter-word command"; }
+    String getHelpMessage() const override { return "flwc <command> -- Executes four-letter-word command"; }
 };
 
 }

programs/keeper-client/KeeperClient.cpp

@@ -177,10 +177,6 @@ void KeeperClient::initialize(Poco::Util::Application & /* self */)
         std::make_shared<SetCommand>(),
         std::make_shared<CreateCommand>(),
         std::make_shared<GetCommand>(),
-        std::make_shared<GetStatCommand>(),
-        std::make_shared<FindSuperNodes>(),
-        std::make_shared<DeleteStableBackups>(),
-        std::make_shared<FindBigFamily>(),
         std::make_shared<RMCommand>(),
         std::make_shared<RMRCommand>(),
         std::make_shared<HelpCommand>(),

programs/keeper-client/Parser.cpp

@@ -58,7 +58,6 @@ bool KeeperParser::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
         return false;
 
     String command_name(pos->begin, pos->end);
-    std::transform(command_name.begin(), command_name.end(), command_name.begin(), [](unsigned char c) { return std::tolower(c); });
     Command command;
 
     auto iter = KeeperClient::commands.find(command_name);

programs/server/Server.cpp

@@ -1650,6 +1650,7 @@ try
         database_catalog.initializeAndLoadTemporaryDatabase();
         loadMetadataSystem(global_context);
         maybeConvertSystemDatabase(global_context);
+        startupSystemTables();
         /// After attaching system databases we can initialize system log.
         global_context->initializeSystemLogs();
         global_context->setSystemZooKeeperLogAfterInitializationIfNeeded();
@@ -1668,7 +1669,6 @@ try
         /// Then, load remaining databases
         loadMetadata(global_context, default_database);
         convertDatabasesEnginesIfNeed(global_context);
-        startupSystemTables();
         database_catalog.startupBackgroundCleanup();
         /// After loading validate that default database exists
         database_catalog.assertDatabaseExists(default_database);

src/Access/AccessControl.cpp

@@ -6,6 +6,7 @@
 #include <Access/DiskAccessStorage.h>
 #include <Access/LDAPAccessStorage.h>
 #include <Access/ContextAccess.h>
+#include <Access/EnabledSettings.h>
 #include <Access/EnabledRolesInfo.h>
 #include <Access/RoleCache.h>
 #include <Access/RowPolicyCache.h>
@@ -729,6 +730,14 @@ std::shared_ptr<const EnabledRoles> AccessControl::getEnabledRoles(
 }
 
 
+std::shared_ptr<const EnabledRolesInfo> AccessControl::getEnabledRolesInfo(
+    const std::vector<UUID> & current_roles,
+    const std::vector<UUID> & current_roles_with_admin_option) const
+{
+    return getEnabledRoles(current_roles, current_roles_with_admin_option)->getRolesInfo();
+}
+
+
 std::shared_ptr<const EnabledRowPolicies> AccessControl::getEnabledRowPolicies(const UUID & user_id, const boost::container::flat_set<UUID> & enabled_roles) const
 {
     return row_policy_cache->getEnabledRowPolicies(user_id, enabled_roles);
@@ -772,6 +781,15 @@ std::shared_ptr<const EnabledSettings> AccessControl::getEnabledSettings(
     return settings_profiles_cache->getEnabledSettings(user_id, settings_from_user, enabled_roles, settings_from_enabled_roles);
 }
 
+std::shared_ptr<const SettingsProfilesInfo> AccessControl::getEnabledSettingsInfo(
+    const UUID & user_id,
+    const SettingsProfileElements & settings_from_user,
+    const boost::container::flat_set<UUID> & enabled_roles,
+    const SettingsProfileElements & settings_from_enabled_roles) const
+{
+    return getEnabledSettings(user_id, settings_from_user, enabled_roles, settings_from_enabled_roles)->getInfo();
+}
+
 std::shared_ptr<const SettingsProfilesInfo> AccessControl::getSettingsProfileInfo(const UUID & profile_id)
 {
     return settings_profiles_cache->getSettingsProfileInfo(profile_id);

src/Access/AccessControl.h

@@ -29,6 +29,7 @@ class ContextAccessParams;
 struct User;
 using UserPtr = std::shared_ptr<const User>;
 class EnabledRoles;
+struct EnabledRolesInfo;
 class RoleCache;
 class EnabledRowPolicies;
 class RowPolicyCache;
@@ -187,6 +188,10 @@ public:
         const std::vector<UUID> & current_roles,
         const std::vector<UUID> & current_roles_with_admin_option) const;
 
+    std::shared_ptr<const EnabledRolesInfo> getEnabledRolesInfo(
+        const std::vector<UUID> & current_roles,
+        const std::vector<UUID> & current_roles_with_admin_option) const;
+
     std::shared_ptr<const EnabledRowPolicies> getEnabledRowPolicies(
         const UUID & user_id,
         const boost::container::flat_set<UUID> & enabled_roles) const;
@@ -209,6 +214,12 @@ public:
         const boost::container::flat_set<UUID> & enabled_roles,
         const SettingsProfileElements & settings_from_enabled_roles) const;
 
+    std::shared_ptr<const SettingsProfilesInfo> getEnabledSettingsInfo(
+        const UUID & user_id,
+        const SettingsProfileElements & settings_from_user,
+        const boost::container::flat_set<UUID> & enabled_roles,
+        const SettingsProfileElements & settings_from_enabled_roles) const;
+
     std::shared_ptr<const SettingsProfilesInfo> getSettingsProfileInfo(const UUID & profile_id);
 
     const ExternalAuthenticators & getExternalAuthenticators() const;

src/Access/Common/AccessType.h

@@ -168,6 +168,7 @@ enum class AccessType
     M(SYSTEM_TTL_MERGES, "SYSTEM STOP TTL MERGES, SYSTEM START TTL MERGES, STOP TTL MERGES, START TTL MERGES", TABLE, SYSTEM) \
     M(SYSTEM_FETCHES, "SYSTEM STOP FETCHES, SYSTEM START FETCHES, STOP FETCHES, START FETCHES", TABLE, SYSTEM) \
     M(SYSTEM_MOVES, "SYSTEM STOP MOVES, SYSTEM START MOVES, STOP MOVES, START MOVES", TABLE, SYSTEM) \
+    M(SYSTEM_PULLING_REPLICATION_LOG, "SYSTEM STOP PULLING REPLICATION LOG, SYSTEM START PULLING REPLICATION LOG", TABLE, SYSTEM) \
     M(SYSTEM_DISTRIBUTED_SENDS, "SYSTEM STOP DISTRIBUTED SENDS, SYSTEM START DISTRIBUTED SENDS, STOP DISTRIBUTED SENDS, START DISTRIBUTED SENDS", TABLE, SYSTEM_SENDS) \
     M(SYSTEM_REPLICATED_SENDS, "SYSTEM STOP REPLICATED SENDS, SYSTEM START REPLICATED SENDS, STOP REPLICATED SENDS, START REPLICATED SENDS", TABLE, SYSTEM_SENDS) \
     M(SYSTEM_SENDS, "SYSTEM STOP SENDS, SYSTEM START SENDS, STOP SENDS, START SENDS", GROUP, SYSTEM) \

src/Access/tests/gtest_access_rights_ops.cpp

@@ -51,7 +51,7 @@ TEST(AccessRights, Union)
               "CREATE DICTIONARY, DROP DATABASE, DROP TABLE, DROP VIEW, DROP DICTIONARY, UNDROP TABLE, "
               "TRUNCATE, OPTIMIZE, BACKUP, CREATE ROW POLICY, ALTER ROW POLICY, DROP ROW POLICY, "
               "SHOW ROW POLICIES, SYSTEM MERGES, SYSTEM TTL MERGES, SYSTEM FETCHES, "
-              "SYSTEM MOVES, SYSTEM SENDS, SYSTEM REPLICATION QUEUES, "
+              "SYSTEM MOVES, SYSTEM PULLING REPLICATION LOG, SYSTEM SENDS, SYSTEM REPLICATION QUEUES, "
               "SYSTEM DROP REPLICA, SYSTEM SYNC REPLICA, SYSTEM RESTART REPLICA, "
               "SYSTEM RESTORE REPLICA, SYSTEM WAIT LOADING PARTS, SYSTEM SYNC DATABASE REPLICA, SYSTEM FLUSH DISTRIBUTED, dictGet ON db1.*, GRANT NAMED COLLECTION ADMIN ON db1");
 }

src/Backups/BackupEntriesCollector.cpp

@@ -77,10 +77,12 @@ BackupEntriesCollector::BackupEntriesCollector(
     const ASTBackupQuery::Elements & backup_query_elements_,
     const BackupSettings & backup_settings_,
     std::shared_ptr<IBackupCoordination> backup_coordination_,
+    const ReadSettings & read_settings_,
     const ContextPtr & context_)
     : backup_query_elements(backup_query_elements_)
     , backup_settings(backup_settings_)
     , backup_coordination(backup_coordination_)
+    , read_settings(read_settings_)
     , context(context_)
     , on_cluster_first_sync_timeout(context->getConfigRef().getUInt64("backups.on_cluster_first_sync_timeout", 180000))
     , consistent_metadata_snapshot_timeout(context->getConfigRef().getUInt64("backups.consistent_metadata_snapshot_timeout", 600000))

src/Backups/BackupEntriesCollector.h

@@ -30,6 +30,7 @@ public:
     BackupEntriesCollector(const ASTBackupQuery::Elements & backup_query_elements_,
                            const BackupSettings & backup_settings_,
                            std::shared_ptr<IBackupCoordination> backup_coordination_,
+                           const ReadSettings & read_settings_,
                            const ContextPtr & context_);
     ~BackupEntriesCollector();
 
@@ -40,6 +41,7 @@ public:
 
     const BackupSettings & getBackupSettings() const { return backup_settings; }
     std::shared_ptr<IBackupCoordination> getBackupCoordination() const { return backup_coordination; }
+    const ReadSettings & getReadSettings() const { return read_settings; }
     ContextPtr getContext() const { return context; }
 
     /// Adds a backup entry which will be later returned by run().
@@ -93,6 +95,7 @@ private:
     const ASTBackupQuery::Elements backup_query_elements;
     const BackupSettings backup_settings;
     std::shared_ptr<IBackupCoordination> backup_coordination;
+    const ReadSettings read_settings;
     ContextPtr context;
     std::chrono::milliseconds on_cluster_first_sync_timeout;
     std::chrono::milliseconds consistent_metadata_snapshot_timeout;

src/Backups/BackupEntryFromImmutableFile.cpp

@@ -57,7 +57,7 @@ UInt64 BackupEntryFromImmutableFile::getSize() const
     return *file_size;
 }
 
-UInt128 BackupEntryFromImmutableFile::getChecksum() const
+UInt128 BackupEntryFromImmutableFile::getChecksum(const ReadSettings & read_settings) const
 {
     {
         std::lock_guard lock{size_and_checksum_mutex};
@@ -73,7 +73,7 @@ UInt128 BackupEntryFromImmutableFile::getChecksum() const
         }
     }
 
-    auto calculated_checksum = BackupEntryWithChecksumCalculation<IBackupEntry>::getChecksum();
+    auto calculated_checksum = BackupEntryWithChecksumCalculation<IBackupEntry>::getChecksum(read_settings);
 
     {
         std::lock_guard lock{size_and_checksum_mutex};
@@ -86,13 +86,13 @@ UInt128 BackupEntryFromImmutableFile::getChecksum() const
     }
 }
 
-std::optional<UInt128> BackupEntryFromImmutableFile::getPartialChecksum(size_t prefix_length) const
+std::optional<UInt128> BackupEntryFromImmutableFile::getPartialChecksum(size_t prefix_length, const ReadSettings & read_settings) const
 {
     if (prefix_length == 0)
         return 0;
 
     if (prefix_length >= getSize())
-        return getChecksum();
+        return getChecksum(read_settings);
 
     /// For immutable files we don't use partial checksums.
     return std::nullopt;

src/Backups/BackupEntryFromImmutableFile.h

@@ -27,8 +27,8 @@ public:
     std::unique_ptr<SeekableReadBuffer> getReadBuffer(const ReadSettings & read_settings) const override;
 
     UInt64 getSize() const override;
-    UInt128 getChecksum() const override;
-    std::optional<UInt128> getPartialChecksum(size_t prefix_length) const override;
+    UInt128 getChecksum(const ReadSettings & read_settings) const override;
+    std::optional<UInt128> getPartialChecksum(size_t prefix_length, const ReadSettings & read_settings) const override;
 
     DataSourceDescription getDataSourceDescription() const override { return data_source_description; }
     bool isEncryptedByDisk() const override { return copy_encrypted; }

src/Backups/BackupEntryFromSmallFile.cpp

@@ -11,17 +11,17 @@ namespace DB
 {
 namespace
 {
-    String readFile(const String & file_path)
+    String readFile(const String & file_path, const ReadSettings & read_settings)
     {
-        auto buf = createReadBufferFromFileBase(file_path, /* settings= */ {});
+        auto buf = createReadBufferFromFileBase(file_path, read_settings);
         String s;
         readStringUntilEOF(s, *buf);
         return s;
     }
 
-    String readFile(const DiskPtr & disk, const String & file_path, bool copy_encrypted)
+    String readFile(const DiskPtr & disk, const String & file_path, const ReadSettings & read_settings, bool copy_encrypted)
     {
-        auto buf = copy_encrypted ? disk->readEncryptedFile(file_path, {}) : disk->readFile(file_path);
+        auto buf = copy_encrypted ? disk->readEncryptedFile(file_path, read_settings) : disk->readFile(file_path, read_settings);
         String s;
         readStringUntilEOF(s, *buf);
         return s;
@@ -29,19 +29,19 @@ namespace
 }
 
 
-BackupEntryFromSmallFile::BackupEntryFromSmallFile(const String & file_path_)
+BackupEntryFromSmallFile::BackupEntryFromSmallFile(const String & file_path_, const ReadSettings & read_settings_)
     : file_path(file_path_)
     , data_source_description(DiskLocal::getLocalDataSourceDescription(file_path_))
-    , data(readFile(file_path_))
+    , data(readFile(file_path_, read_settings_))
 {
 }
 
-BackupEntryFromSmallFile::BackupEntryFromSmallFile(const DiskPtr & disk_, const String & file_path_, bool copy_encrypted_)
+BackupEntryFromSmallFile::BackupEntryFromSmallFile(const DiskPtr & disk_, const String & file_path_, const ReadSettings & read_settings_, bool copy_encrypted_)
     : disk(disk_)
     , file_path(file_path_)
     , data_source_description(disk_->getDataSourceDescription())
     , copy_encrypted(copy_encrypted_ && data_source_description.is_encrypted)
-    , data(readFile(disk_, file_path, copy_encrypted))
+    , data(readFile(disk_, file_path, read_settings_, copy_encrypted))
 {
 }
 

src/Backups/BackupEntryFromSmallFile.h

@@ -13,8 +13,8 @@ using DiskPtr = std::shared_ptr<IDisk>;
 class BackupEntryFromSmallFile : public BackupEntryWithChecksumCalculation<IBackupEntry>
 {
 public:
-    explicit BackupEntryFromSmallFile(const String & file_path_);
-    BackupEntryFromSmallFile(const DiskPtr & disk_, const String & file_path_, bool copy_encrypted_ = false);
+    explicit BackupEntryFromSmallFile(const String & file_path_, const ReadSettings & read_settings_);
+    BackupEntryFromSmallFile(const DiskPtr & disk_, const String & file_path_, const ReadSettings & read_settings_, bool copy_encrypted_ = false);
 
     std::unique_ptr<SeekableReadBuffer> getReadBuffer(const ReadSettings &) const override;
     UInt64 getSize() const override { return data.size(); }

src/Backups/BackupEntryWithChecksumCalculation.cpp

@@ -6,7 +6,7 @@ namespace DB
 {
 
 template <typename Base>
-UInt128 BackupEntryWithChecksumCalculation<Base>::getChecksum() const
+UInt128 BackupEntryWithChecksumCalculation<Base>::getChecksum(const ReadSettings & read_settings) const
 {
     {
         std::lock_guard lock{checksum_calculation_mutex};
@@ -26,7 +26,7 @@ UInt128 BackupEntryWithChecksumCalculation<Base>::getChecksum() const
             }
             else
             {
-                auto read_buffer = this->getReadBuffer(ReadSettings{}.adjustBufferSize(size));
+                auto read_buffer = this->getReadBuffer(read_settings.adjustBufferSize(size));
                 HashingReadBuffer hashing_read_buffer(*read_buffer);
                 hashing_read_buffer.ignoreAll();
                 calculated_checksum = hashing_read_buffer.getHash();
@@ -37,23 +37,20 @@ UInt128 BackupEntryWithChecksumCalculation<Base>::getChecksum() const
 }
 
 template <typename Base>
-std::optional<UInt128> BackupEntryWithChecksumCalculation<Base>::getPartialChecksum(size_t prefix_length) const
+std::optional<UInt128> BackupEntryWithChecksumCalculation<Base>::getPartialChecksum(size_t prefix_length, const ReadSettings & read_settings) const
 {
     if (prefix_length == 0)
         return 0;
 
     size_t size = this->getSize();
     if (prefix_length >= size)
-        return this->getChecksum();
+        return this->getChecksum(read_settings);
 
     std::lock_guard lock{checksum_calculation_mutex};
 
-    ReadSettings read_settings;
-    if (calculated_checksum)
-        read_settings.adjustBufferSize(calculated_checksum ? prefix_length : size);
-
-    auto read_buffer = this->getReadBuffer(read_settings);
+    auto read_buffer = this->getReadBuffer(read_settings.adjustBufferSize(calculated_checksum ? prefix_length : size));
     HashingReadBuffer hashing_read_buffer(*read_buffer);
+
     hashing_read_buffer.ignore(prefix_length);
     auto partial_checksum = hashing_read_buffer.getHash();
 

src/Backups/BackupEntryWithChecksumCalculation.h

@@ -11,8 +11,8 @@ template <typename Base>
 class BackupEntryWithChecksumCalculation : public Base
 {
 public:
-    UInt128 getChecksum() const override;
-    std::optional<UInt128> getPartialChecksum(size_t prefix_length) const override;
+    UInt128 getChecksum(const ReadSettings & read_settings) const override;
+    std::optional<UInt128> getPartialChecksum(size_t prefix_length, const ReadSettings & read_settings) const override;
 
 private:
     mutable std::optional<UInt128> calculated_checksum;

src/Backups/BackupEntryWrappedWith.h

@@ -17,8 +17,8 @@ public:
 
     std::unique_ptr<SeekableReadBuffer> getReadBuffer(const ReadSettings & read_settings) const override { return entry->getReadBuffer(read_settings); }
     UInt64 getSize() const override { return entry->getSize(); }
-    UInt128 getChecksum() const override { return entry->getChecksum(); }
-    std::optional<UInt128> getPartialChecksum(size_t prefix_length) const override { return entry->getPartialChecksum(prefix_length); }
+    UInt128 getChecksum(const ReadSettings & read_settings) const override { return entry->getChecksum(read_settings); }
+    std::optional<UInt128> getPartialChecksum(size_t prefix_length, const ReadSettings & read_settings) const override { return entry->getPartialChecksum(prefix_length, read_settings); }
     DataSourceDescription getDataSourceDescription() const override { return entry->getDataSourceDescription(); }
     bool isEncryptedByDisk() const override { return entry->isEncryptedByDisk(); }
     bool isFromFile() const override { return entry->isFromFile(); }

src/Backups/BackupFactory.h

@@ -3,6 +3,8 @@
 #include <Backups/IBackup.h>
 #include <Backups/BackupInfo.h>
 #include <Core/Types.h>
+#include <IO/ReadSettings.h>
+#include <IO/WriteSettings.h>
 #include <Parsers/IAST_fwd.h>
 #include <boost/noncopyable.hpp>
 #include <memory>
@@ -37,6 +39,8 @@ public:
         std::optional<UUID> backup_uuid;
         bool deduplicate_files = true;
         bool allow_s3_native_copy = true;
+        ReadSettings read_settings;
+        WriteSettings write_settings;
     };
 
     static BackupFactory & instance();

src/Backups/BackupFileInfo.cpp

@@ -57,12 +57,12 @@ namespace
 
     /// Calculate checksum for backup entry if it's empty.
     /// Also able to calculate additional checksum of some prefix.
-    ChecksumsForNewEntry calculateNewEntryChecksumsIfNeeded(const BackupEntryPtr & entry, size_t prefix_size)
+    ChecksumsForNewEntry calculateNewEntryChecksumsIfNeeded(const BackupEntryPtr & entry, size_t prefix_size, const ReadSettings & read_settings)
     {
         ChecksumsForNewEntry res;
         /// The partial checksum should be calculated before the full checksum to enable optimization in BackupEntryWithChecksumCalculation.
-        res.prefix_checksum = entry->getPartialChecksum(prefix_size);
-        res.full_checksum = entry->getChecksum();
+        res.prefix_checksum = entry->getPartialChecksum(prefix_size, read_settings);
+        res.full_checksum = entry->getChecksum(read_settings);
         return res;
     }
 
@@ -93,7 +93,12 @@ String BackupFileInfo::describe() const
 }
 
 
-BackupFileInfo buildFileInfoForBackupEntry(const String & file_name, const BackupEntryPtr & backup_entry, const BackupPtr & base_backup, Poco::Logger * log)
+BackupFileInfo buildFileInfoForBackupEntry(
+    const String & file_name,
+    const BackupEntryPtr & backup_entry,
+    const BackupPtr & base_backup,
+    const ReadSettings & read_settings,
+    Poco::Logger * log)
 {
     auto adjusted_path = removeLeadingSlash(file_name);
 
@@ -126,7 +131,7 @@ BackupFileInfo buildFileInfoForBackupEntry(const String & file_name, const Backu
         /// File with the same name but smaller size exist in previous backup
         if (check_base == CheckBackupResult::HasPrefix)
         {
-            auto checksums = calculateNewEntryChecksumsIfNeeded(backup_entry, base_backup_file_info->first);
+            auto checksums = calculateNewEntryChecksumsIfNeeded(backup_entry, base_backup_file_info->first, read_settings);
             info.checksum = checksums.full_checksum;
 
             /// We have prefix of this file in backup with the same checksum.
@@ -146,7 +151,7 @@ BackupFileInfo buildFileInfoForBackupEntry(const String & file_name, const Backu
         {
             /// We have full file or have nothing, first of all let's get checksum
             /// of current file
-            auto checksums = calculateNewEntryChecksumsIfNeeded(backup_entry, 0);
+            auto checksums = calculateNewEntryChecksumsIfNeeded(backup_entry, 0, read_settings);
             info.checksum = checksums.full_checksum;
 
             if (info.checksum == base_backup_file_info->second)
@@ -169,7 +174,7 @@ BackupFileInfo buildFileInfoForBackupEntry(const String & file_name, const Backu
     }
     else
     {
-        auto checksums = calculateNewEntryChecksumsIfNeeded(backup_entry, 0);
+        auto checksums = calculateNewEntryChecksumsIfNeeded(backup_entry, 0, read_settings);
         info.checksum = checksums.full_checksum;
     }
 
@@ -188,7 +193,7 @@ BackupFileInfo buildFileInfoForBackupEntry(const String & file_name, const Backu
     return info;
 }
 
-BackupFileInfos buildFileInfosForBackupEntries(const BackupEntries & backup_entries, const BackupPtr & base_backup, ThreadPool & thread_pool)
+BackupFileInfos buildFileInfosForBackupEntries(const BackupEntries & backup_entries, const BackupPtr & base_backup, const ReadSettings & read_settings, ThreadPool & thread_pool)
 {
     BackupFileInfos infos;
     infos.resize(backup_entries.size());
@@ -210,7 +215,7 @@ BackupFileInfos buildFileInfosForBackupEntries(const BackupEntries & backup_entr
             ++num_active_jobs;
         }
 
-        auto job = [&mutex, &num_active_jobs, &event, &exception, &infos, &backup_entries, &base_backup, &thread_group, i, log](bool async)
+        auto job = [&mutex, &num_active_jobs, &event, &exception, &infos, &backup_entries, &read_settings, &base_backup, &thread_group, i, log](bool async)
         {
             SCOPE_EXIT_SAFE({
                 std::lock_guard lock{mutex};
@@ -237,7 +242,7 @@ BackupFileInfos buildFileInfosForBackupEntries(const BackupEntries & backup_entr
                         return;
                 }
 
-                infos[i] = buildFileInfoForBackupEntry(name, entry, base_backup, log);
+                infos[i] = buildFileInfoForBackupEntry(name, entry, base_backup, read_settings, log);
             }
             catch (...)
             {

src/Backups/BackupFileInfo.h

@@ -13,6 +13,7 @@ class IBackupEntry;
 using BackupPtr = std::shared_ptr<const IBackup>;
 using BackupEntryPtr = std::shared_ptr<const IBackupEntry>;
 using BackupEntries = std::vector<std::pair<String, BackupEntryPtr>>;
+struct ReadSettings;
 
 
 /// Information about a file stored in a backup.
@@ -66,9 +67,9 @@ struct BackupFileInfo
 using BackupFileInfos = std::vector<BackupFileInfo>;
 
 /// Builds a BackupFileInfo for a specified backup entry.
-BackupFileInfo buildFileInfoForBackupEntry(const String & file_name, const BackupEntryPtr & backup_entry, const BackupPtr & base_backup, Poco::Logger * log);
+BackupFileInfo buildFileInfoForBackupEntry(const String & file_name, const BackupEntryPtr & backup_entry, const BackupPtr & base_backup, const ReadSettings & read_settings, Poco::Logger * log);
 
 /// Builds a vector of BackupFileInfos for specified backup entries.
-BackupFileInfos buildFileInfosForBackupEntries(const BackupEntries & backup_entries, const BackupPtr & base_backup, ThreadPool & thread_pool);
+BackupFileInfos buildFileInfosForBackupEntries(const BackupEntries & backup_entries, const BackupPtr & base_backup, const ReadSettings & read_settings, ThreadPool & thread_pool);
 
 }

src/Backups/BackupIO_Default.cpp

@@ -4,17 +4,16 @@
 #include <IO/copyData.h>
 #include <IO/WriteBufferFromFileBase.h>
 #include <IO/ReadBufferFromFileBase.h>
-#include <Interpreters/Context.h>
 #include <Common/logger_useful.h>
 
 
 namespace DB
 {
 
-BackupReaderDefault::BackupReaderDefault(Poco::Logger * log_, const ContextPtr & context_)
+BackupReaderDefault::BackupReaderDefault(const ReadSettings & read_settings_, const WriteSettings & write_settings_, Poco::Logger * log_)
     : log(log_)
-    , read_settings(context_->getBackupReadSettings())
-    , write_settings(context_->getWriteSettings())
+    , read_settings(read_settings_)
+    , write_settings(write_settings_)
     , write_buffer_size(DBMS_DEFAULT_BUFFER_SIZE)
 {
 }
@@ -37,10 +36,10 @@ void BackupReaderDefault::copyFileToDisk(const String & path_in_backup, size_t f
     write_buffer->finalize();
 }
 
-BackupWriterDefault::BackupWriterDefault(Poco::Logger * log_, const ContextPtr & context_)
+BackupWriterDefault::BackupWriterDefault(const ReadSettings & read_settings_, const WriteSettings & write_settings_, Poco::Logger * log_)
     : log(log_)
-    , read_settings(context_->getBackupReadSettings())
-    , write_settings(context_->getWriteSettings())
+    , read_settings(read_settings_)
+    , write_settings(write_settings_)
     , write_buffer_size(DBMS_DEFAULT_BUFFER_SIZE)
 {
 }

src/Backups/BackupIO_Default.h

@@ -3,7 +3,6 @@
 #include <Backups/BackupIO.h>
 #include <IO/ReadSettings.h>
 #include <IO/WriteSettings.h>
-#include <Interpreters/Context_fwd.h>
 
 
 namespace DB
@@ -19,7 +18,7 @@ enum class WriteMode;
 class BackupReaderDefault : public IBackupReader
 {
 public:
-    BackupReaderDefault(Poco::Logger * log_, const ContextPtr & context_);
+    BackupReaderDefault(const ReadSettings & read_settings_, const WriteSettings & write_settings_, Poco::Logger * log_);
     ~BackupReaderDefault() override = default;
 
     /// The function copyFileToDisk() can be much faster than reading the file with readFile() and then writing it to some disk.
@@ -46,7 +45,7 @@ protected:
 class BackupWriterDefault : public IBackupWriter
 {
 public:
-    BackupWriterDefault(Poco::Logger * log_, const ContextPtr & context_);
+    BackupWriterDefault(const ReadSettings & read_settings_, const WriteSettings & write_settings_, Poco::Logger * log_);
     ~BackupWriterDefault() override = default;
 
     bool fileContentsEqual(const String & file_name, const String & expected_file_contents) override;

src/Backups/BackupIO_Disk.cpp

@@ -8,8 +8,8 @@
 namespace DB
 {
 
-BackupReaderDisk::BackupReaderDisk(const DiskPtr & disk_, const String & root_path_, const ContextPtr & context_)
-    : BackupReaderDefault(&Poco::Logger::get("BackupReaderDisk"), context_)
+BackupReaderDisk::BackupReaderDisk(const DiskPtr & disk_, const String & root_path_, const ReadSettings & read_settings_, const WriteSettings & write_settings_)
+    : BackupReaderDefault(read_settings_, write_settings_, &Poco::Logger::get("BackupReaderDisk"))
     , disk(disk_)
     , root_path(root_path_)
     , data_source_description(disk->getDataSourceDescription())
@@ -56,8 +56,8 @@ void BackupReaderDisk::copyFileToDisk(const String & path_in_backup, size_t file
 }
 
 
-BackupWriterDisk::BackupWriterDisk(const DiskPtr & disk_, const String & root_path_, const ContextPtr & context_)
-    : BackupWriterDefault(&Poco::Logger::get("BackupWriterDisk"), context_)
+BackupWriterDisk::BackupWriterDisk(const DiskPtr & disk_, const String & root_path_, const ReadSettings & read_settings_, const WriteSettings & write_settings_)
+    : BackupWriterDefault(read_settings_, write_settings_, &Poco::Logger::get("BackupWriterDisk"))
     , disk(disk_)
     , root_path(root_path_)
     , data_source_description(disk->getDataSourceDescription())

src/Backups/BackupIO_Disk.h

@@ -13,7 +13,7 @@ using DiskPtr = std::shared_ptr<IDisk>;
 class BackupReaderDisk : public BackupReaderDefault
 {
 public:
-    BackupReaderDisk(const DiskPtr & disk_, const String & root_path_, const ContextPtr & context_);
+    BackupReaderDisk(const DiskPtr & disk_, const String & root_path_, const ReadSettings & read_settings_, const WriteSettings & write_settings_);
     ~BackupReaderDisk() override;
 
     bool fileExists(const String & file_name) override;
@@ -33,7 +33,7 @@ private:
 class BackupWriterDisk : public BackupWriterDefault
 {
 public:
-    BackupWriterDisk(const DiskPtr & disk_, const String & root_path_, const ContextPtr & context_);
+    BackupWriterDisk(const DiskPtr & disk_, const String & root_path_, const ReadSettings & read_settings_, const WriteSettings & write_settings_);
     ~BackupWriterDisk() override;
 
     bool fileExists(const String & file_name) override;

src/Backups/BackupIO_File.cpp

@@ -16,8 +16,8 @@ namespace ErrorCodes
     extern const int LOGICAL_ERROR;
 }
 
-BackupReaderFile::BackupReaderFile(const String & root_path_, const ContextPtr & context_)
-    : BackupReaderDefault(&Poco::Logger::get("BackupReaderFile"), context_)
+BackupReaderFile::BackupReaderFile(const String & root_path_, const ReadSettings & read_settings_, const WriteSettings & write_settings_)
+    : BackupReaderDefault(read_settings_, write_settings_, &Poco::Logger::get("BackupReaderFile"))
     , root_path(root_path_)
     , data_source_description(DiskLocal::getLocalDataSourceDescription(root_path))
 {
@@ -74,8 +74,8 @@ void BackupReaderFile::copyFileToDisk(const String & path_in_backup, size_t file
 }
 
 
-BackupWriterFile::BackupWriterFile(const String & root_path_, const ContextPtr & context_)
-    : BackupWriterDefault(&Poco::Logger::get("BackupWriterFile"), context_)
+BackupWriterFile::BackupWriterFile(const String & root_path_, const ReadSettings & read_settings_, const WriteSettings & write_settings_)
+    : BackupWriterDefault(read_settings_, write_settings_, &Poco::Logger::get("BackupWriterFile"))
     , root_path(root_path_)
     , data_source_description(DiskLocal::getLocalDataSourceDescription(root_path))
 {

src/Backups/BackupIO_File.h

@@ -11,7 +11,7 @@ namespace DB
 class BackupReaderFile : public BackupReaderDefault
 {
 public:
-    explicit BackupReaderFile(const String & root_path_, const ContextPtr & context_);
+    explicit BackupReaderFile(const String & root_path_, const ReadSettings & read_settings_, const WriteSettings & write_settings_);
 
     bool fileExists(const String & file_name) override;
     UInt64 getFileSize(const String & file_name) override;
@@ -29,7 +29,7 @@ private:
 class BackupWriterFile : public BackupWriterDefault
 {
 public:
-    BackupWriterFile(const String & root_path_, const ContextPtr & context_);
+    BackupWriterFile(const String & root_path_, const ReadSettings & read_settings_, const WriteSettings & write_settings_);
 
     bool fileExists(const String & file_name) override;
     UInt64 getFileSize(const String & file_name) override;

src/Backups/BackupIO_S3.cpp

@@ -101,8 +101,14 @@ namespace
 
 
 BackupReaderS3::BackupReaderS3(
-    const S3::URI & s3_uri_, const String & access_key_id_, const String & secret_access_key_, bool allow_s3_native_copy, const ContextPtr & context_)
-    : BackupReaderDefault(&Poco::Logger::get("BackupReaderS3"), context_)
+    const S3::URI & s3_uri_,
+    const String & access_key_id_,
+    const String & secret_access_key_,
+    bool allow_s3_native_copy,
+    const ReadSettings & read_settings_,
+    const WriteSettings & write_settings_,
+    const ContextPtr & context_)
+    : BackupReaderDefault(read_settings_, write_settings_, &Poco::Logger::get("BackupReaderS3"))
     , s3_uri(s3_uri_)
     , client(makeS3Client(s3_uri_, access_key_id_, secret_access_key_, context_))
     , request_settings(context_->getStorageS3Settings().getSettings(s3_uri.uri.toString()).request_settings)
@@ -178,8 +184,15 @@ void BackupReaderS3::copyFileToDisk(const String & path_in_backup, size_t file_s
 
 
 BackupWriterS3::BackupWriterS3(
-    const S3::URI & s3_uri_, const String & access_key_id_, const String & secret_access_key_, bool allow_s3_native_copy, const String & storage_class_name, const ContextPtr & context_)
-    : BackupWriterDefault(&Poco::Logger::get("BackupWriterS3"), context_)
+    const S3::URI & s3_uri_,
+    const String & access_key_id_,
+    const String & secret_access_key_,
+    bool allow_s3_native_copy,
+    const String & storage_class_name,
+    const ReadSettings & read_settings_,
+    const WriteSettings & write_settings_,
+    const ContextPtr & context_)
+    : BackupWriterDefault(read_settings_, write_settings_, &Poco::Logger::get("BackupWriterS3"))
     , s3_uri(s3_uri_)
     , client(makeS3Client(s3_uri_, access_key_id_, secret_access_key_, context_))
     , request_settings(context_->getStorageS3Settings().getSettings(s3_uri.uri.toString()).request_settings)

src/Backups/BackupIO_S3.h

@@ -17,7 +17,7 @@ namespace DB
 class BackupReaderS3 : public BackupReaderDefault
 {
 public:
-    BackupReaderS3(const S3::URI & s3_uri_, const String & access_key_id_, const String & secret_access_key_, bool allow_s3_native_copy, const ContextPtr & context_);
+    BackupReaderS3(const S3::URI & s3_uri_, const String & access_key_id_, const String & secret_access_key_, bool allow_s3_native_copy, const ReadSettings & read_settings_, const WriteSettings & write_settings_, const ContextPtr & context_);
     ~BackupReaderS3() override;
 
     bool fileExists(const String & file_name) override;
@@ -38,7 +38,7 @@ private:
 class BackupWriterS3 : public BackupWriterDefault
 {
 public:
-    BackupWriterS3(const S3::URI & s3_uri_, const String & access_key_id_, const String & secret_access_key_, bool allow_s3_native_copy, const String & storage_class_name, const ContextPtr & context_);
+    BackupWriterS3(const S3::URI & s3_uri_, const String & access_key_id_, const String & secret_access_key_, bool allow_s3_native_copy, const String & storage_class_name, const ReadSettings & read_settings_, const WriteSettings & write_settings_, const ContextPtr & context_);
     ~BackupWriterS3() override;
 
     bool fileExists(const String & file_name) override;

src/Backups/BackupSettings.cpp

@@ -27,6 +27,7 @@ namespace ErrorCodes
     M(Bool, decrypt_files_from_encrypted_disks) \
     M(Bool, deduplicate_files) \
     M(Bool, allow_s3_native_copy) \
+    M(Bool, read_from_filesystem_cache) \
     M(UInt64, shard_num) \
     M(UInt64, replica_num) \
     M(Bool, internal) \

src/Backups/BackupSettings.h

@@ -44,6 +44,10 @@ struct BackupSettings
     /// Whether native copy is allowed (optimization for cloud storages, that sometimes could have bugs)
     bool allow_s3_native_copy = true;
 
+    /// Allow to use the filesystem cache in passive mode - benefit from the existing cache entries,
+    /// but don't put more entries into the cache.
+    bool read_from_filesystem_cache = true;
+
     /// 1-based shard index to store in the backup. 0 means all shards.
     /// Can only be used with BACKUP ON CLUSTER.
     size_t shard_num = 0;

src/Backups/BackupsWorker.cpp

@@ -178,6 +178,42 @@ namespace
     {
         return status == BackupStatus::RESTORING;
     }
+
+    /// We use slightly different read and write settings for backup/restore
+    /// with a separate throttler and limited usage of filesystem cache.
+    ReadSettings getReadSettingsForBackup(const ContextPtr & context, const BackupSettings & backup_settings)
+    {
+        auto read_settings = context->getReadSettings();
+        read_settings.remote_throttler = context->getBackupsThrottler();
+        read_settings.local_throttler = context->getBackupsThrottler();
+        read_settings.enable_filesystem_cache = backup_settings.read_from_filesystem_cache;
+        read_settings.read_from_filesystem_cache_if_exists_otherwise_bypass_cache = backup_settings.read_from_filesystem_cache;
+        return read_settings;
+    }
+
+    WriteSettings getWriteSettingsForBackup(const ContextPtr & context)
+    {
+        auto write_settings = context->getWriteSettings();
+        write_settings.enable_filesystem_cache_on_write_operations = false;
+        return write_settings;
+    }
+
+    ReadSettings getReadSettingsForRestore(const ContextPtr & context)
+    {
+        auto read_settings = context->getReadSettings();
+        read_settings.remote_throttler = context->getBackupsThrottler();
+        read_settings.local_throttler = context->getBackupsThrottler();
+        read_settings.enable_filesystem_cache = false;
+        read_settings.read_from_filesystem_cache_if_exists_otherwise_bypass_cache = false;
+        return read_settings;
+    }
+
+    WriteSettings getWriteSettingsForRestore(const ContextPtr & context)
+    {
+        auto write_settings = context->getWriteSettings();
+        write_settings.enable_filesystem_cache_on_write_operations = false;
+        return write_settings;
+    }
 }
 
 
@@ -350,6 +386,8 @@ void BackupsWorker::doBackup(
         backup_create_params.backup_uuid = backup_settings.backup_uuid;
         backup_create_params.deduplicate_files = backup_settings.deduplicate_files;
         backup_create_params.allow_s3_native_copy = backup_settings.allow_s3_native_copy;
+        backup_create_params.read_settings = getReadSettingsForBackup(context, backup_settings);
+        backup_create_params.write_settings = getWriteSettingsForBackup(context);
         BackupMutablePtr backup = BackupFactory::instance().createBackup(backup_create_params);
 
         /// Write the backup.
@@ -378,12 +416,12 @@ void BackupsWorker::doBackup(
             /// Prepare backup entries.
             BackupEntries backup_entries;
             {
-                BackupEntriesCollector backup_entries_collector{backup_query->elements, backup_settings, backup_coordination, context};
+                BackupEntriesCollector backup_entries_collector{backup_query->elements, backup_settings, backup_coordination, backup_create_params.read_settings, context};
                 backup_entries = backup_entries_collector.run();
             }
 
             /// Write the backup entries to the backup.
-            buildFileInfosForBackupEntries(backup, backup_entries, backup_coordination);
+            buildFileInfosForBackupEntries(backup, backup_entries, backup_create_params.read_settings, backup_coordination);
             writeBackupEntries(backup, std::move(backup_entries), backup_id, backup_coordination, backup_settings.internal);
 
             /// We have written our backup entries, we need to tell other hosts (they could be waiting for it).
@@ -433,12 +471,12 @@ void BackupsWorker::doBackup(
 }
 
 
-void BackupsWorker::buildFileInfosForBackupEntries(const BackupPtr & backup, const BackupEntries & backup_entries, std::shared_ptr<IBackupCoordination> backup_coordination)
+void BackupsWorker::buildFileInfosForBackupEntries(const BackupPtr & backup, const BackupEntries & backup_entries, const ReadSettings & read_settings, std::shared_ptr<IBackupCoordination> backup_coordination)
 {
     LOG_TRACE(log, "{}", Stage::BUILDING_FILE_INFOS);
     backup_coordination->setStage(Stage::BUILDING_FILE_INFOS, "");
     backup_coordination->waitForStage(Stage::BUILDING_FILE_INFOS);
-    backup_coordination->addFileInfos(::DB::buildFileInfosForBackupEntries(backup_entries, backup->getBaseBackup(), *backups_thread_pool));
+    backup_coordination->addFileInfos(::DB::buildFileInfosForBackupEntries(backup_entries, backup->getBaseBackup(), read_settings, *backups_thread_pool));
 }
 
 
@@ -650,6 +688,8 @@ void BackupsWorker::doRestore(
         backup_open_params.base_backup_info = restore_settings.base_backup_info;
         backup_open_params.password = restore_settings.password;
         backup_open_params.allow_s3_native_copy = restore_settings.allow_s3_native_copy;
+        backup_open_params.read_settings = getReadSettingsForRestore(context);
+        backup_open_params.write_settings = getWriteSettingsForRestore(context);
         BackupPtr backup = BackupFactory::instance().createBackup(backup_open_params);
 
         String current_database = context->getCurrentDatabase();

src/Backups/BackupsWorker.h

@@ -24,6 +24,7 @@ using BackupPtr = std::shared_ptr<const IBackup>;
 class IBackupEntry;
 using BackupEntries = std::vector<std::pair<String, std::shared_ptr<const IBackupEntry>>>;
 using DataRestoreTasks = std::vector<std::function<void()>>;
+struct ReadSettings;
 
 /// Manager of backups and restores: executes backups and restores' threads in the background.
 /// Keeps information about backups and restores started in this session.
@@ -107,7 +108,7 @@ private:
         bool called_async);
 
     /// Builds file infos for specified backup entries.
-    void buildFileInfosForBackupEntries(const BackupPtr & backup, const BackupEntries & backup_entries, std::shared_ptr<IBackupCoordination> backup_coordination);
+    void buildFileInfosForBackupEntries(const BackupPtr & backup, const BackupEntries & backup_entries, const ReadSettings & read_settings, std::shared_ptr<IBackupCoordination> backup_coordination);
 
     /// Write backup entries to an opened backup.
     void writeBackupEntries(BackupMutablePtr backup, BackupEntries && backup_entries, const OperationID & backup_id, std::shared_ptr<IBackupCoordination> backup_coordination, bool internal);

src/Backups/IBackupEntriesLazyBatch.cpp

@@ -19,8 +19,8 @@ public:
 
     std::unique_ptr<SeekableReadBuffer> getReadBuffer(const ReadSettings & read_settings) const override { return getInternalBackupEntry()->getReadBuffer(read_settings); }
     UInt64 getSize() const override { return getInternalBackupEntry()->getSize(); }
-    UInt128 getChecksum() const override { return getInternalBackupEntry()->getChecksum(); }
-    std::optional<UInt128> getPartialChecksum(size_t prefix_length) const override { return getInternalBackupEntry()->getPartialChecksum(prefix_length); }
+    UInt128 getChecksum(const ReadSettings & read_settings) const override { return getInternalBackupEntry()->getChecksum(read_settings); }
+    std::optional<UInt128> getPartialChecksum(size_t prefix_length, const ReadSettings & read_settings) const override { return getInternalBackupEntry()->getPartialChecksum(prefix_length, read_settings); }
     DataSourceDescription getDataSourceDescription() const override { return getInternalBackupEntry()->getDataSourceDescription(); }
     bool isEncryptedByDisk() const override { return getInternalBackupEntry()->isEncryptedByDisk(); }
     bool isFromFile() const override { return getInternalBackupEntry()->isFromFile(); }

src/Backups/IBackupEntry.h

@@ -21,11 +21,11 @@ public:
     virtual UInt64 getSize() const = 0;
 
     /// Returns the checksum of the data.
-    virtual UInt128 getChecksum() const = 0;
+    virtual UInt128 getChecksum(const ReadSettings & read_settings) const = 0;
 
     /// Returns a partial checksum, i.e. the checksum calculated for a prefix part of the data.
     /// Can return nullopt if the partial checksum is too difficult to calculate.
-    virtual std::optional<UInt128> getPartialChecksum(size_t /* prefix_length */) const { return {}; }
+    virtual std::optional<UInt128> getPartialChecksum(size_t /* prefix_length */, const ReadSettings &) const { return {}; }
 
     /// Returns a read buffer for reading the data.
     virtual std::unique_ptr<SeekableReadBuffer> getReadBuffer(const ReadSettings & read_settings) const = 0;

src/Backups/registerBackupEngineS3.cpp

@@ -107,12 +107,27 @@ void registerBackupEngineS3(BackupFactory & factory)
 
         if (params.open_mode == IBackup::OpenMode::READ)
         {
-            auto reader = std::make_shared<BackupReaderS3>(S3::URI{s3_uri}, access_key_id, secret_access_key, params.allow_s3_native_copy, params.context);
+            auto reader = std::make_shared<BackupReaderS3>(S3::URI{s3_uri},
+                                                           access_key_id,
+                                                           secret_access_key,
+                                                           params.allow_s3_native_copy,
+                                                           params.read_settings,
+                                                           params.write_settings,
+                                                           params.context);
+
             return std::make_unique<BackupImpl>(backup_name_for_logging, archive_params, params.base_backup_info, reader, params.context);
         }
         else
         {
-            auto writer = std::make_shared<BackupWriterS3>(S3::URI{s3_uri}, access_key_id, secret_access_key, params.allow_s3_native_copy, params.s3_storage_class, params.context);
+            auto writer = std::make_shared<BackupWriterS3>(S3::URI{s3_uri},
+                                                           access_key_id,
+                                                           secret_access_key,
+                                                           params.allow_s3_native_copy,
+                                                           params.s3_storage_class,
+                                                           params.read_settings,
+                                                           params.write_settings,
+                                                           params.context);
+
             return std::make_unique<BackupImpl>(
                 backup_name_for_logging,
                 archive_params,

src/Backups/registerBackupEnginesFileAndDisk.cpp

@@ -169,18 +169,18 @@ void registerBackupEnginesFileAndDisk(BackupFactory & factory)
         {
             std::shared_ptr<IBackupReader> reader;
             if (engine_name == "File")
-                reader = std::make_shared<BackupReaderFile>(path, params.context);
+                reader = std::make_shared<BackupReaderFile>(path, params.read_settings, params.write_settings);
             else
-                reader = std::make_shared<BackupReaderDisk>(disk, path, params.context);
+                reader = std::make_shared<BackupReaderDisk>(disk, path, params.read_settings, params.write_settings);
             return std::make_unique<BackupImpl>(backup_name_for_logging, archive_params, params.base_backup_info, reader, params.context);
         }
         else
         {
             std::shared_ptr<IBackupWriter> writer;
             if (engine_name == "File")
-                writer = std::make_shared<BackupWriterFile>(path, params.context);
+                writer = std::make_shared<BackupWriterFile>(path, params.read_settings, params.write_settings);
             else
-                writer = std::make_shared<BackupWriterDisk>(disk, path, params.context);
+                writer = std::make_shared<BackupWriterDisk>(disk, path, params.read_settings, params.write_settings);
             return std::make_unique<BackupImpl>(
                 backup_name_for_logging,
                 archive_params,

src/Backups/tests/gtest_backup_entries.cpp

@@ -69,14 +69,14 @@ protected:
 
     static String getChecksum(const BackupEntryPtr & backup_entry)
     {
-        return getHexUIntUppercase(backup_entry->getChecksum());
+        return getHexUIntUppercase(backup_entry->getChecksum({}));
     }
 
     static const constexpr std::string_view NO_CHECKSUM = "no checksum";
 
     static String getPartialChecksum(const BackupEntryPtr & backup_entry, size_t prefix_length)
     {
-        auto partial_checksum = backup_entry->getPartialChecksum(prefix_length);
+        auto partial_checksum = backup_entry->getPartialChecksum(prefix_length, {});
         if (!partial_checksum)
             return String{NO_CHECKSUM};
         return getHexUIntUppercase(*partial_checksum);
@@ -218,7 +218,7 @@ TEST_F(BackupEntriesTest, PartialChecksumBeforeFullChecksum)
 TEST_F(BackupEntriesTest, BackupEntryFromSmallFile)
 {
     writeFile(local_disk, "a.txt");
-    auto entry = std::make_shared<BackupEntryFromSmallFile>(local_disk, "a.txt");
+    auto entry = std::make_shared<BackupEntryFromSmallFile>(local_disk, "a.txt", ReadSettings{});
 
     local_disk->removeFile("a.txt");
 
@@ -239,7 +239,7 @@ TEST_F(BackupEntriesTest, DecryptedEntriesFromEncryptedDisk)
         std::pair<BackupEntryPtr, bool /* partial_checksum_allowed */> test_cases[]
             = {{std::make_shared<BackupEntryFromImmutableFile>(encrypted_disk, "a.txt"), false},
                {std::make_shared<BackupEntryFromAppendOnlyFile>(encrypted_disk, "a.txt"), true},
-               {std::make_shared<BackupEntryFromSmallFile>(encrypted_disk, "a.txt"), true}};
+               {std::make_shared<BackupEntryFromSmallFile>(encrypted_disk, "a.txt", ReadSettings{}), true}};
         for (const auto & [entry, partial_checksum_allowed] : test_cases)
         {
             EXPECT_EQ(entry->getSize(), 9);
@@ -258,7 +258,7 @@ TEST_F(BackupEntriesTest, DecryptedEntriesFromEncryptedDisk)
         BackupEntryPtr entries[]
             = {std::make_shared<BackupEntryFromImmutableFile>(encrypted_disk, "empty.txt"),
                std::make_shared<BackupEntryFromAppendOnlyFile>(encrypted_disk, "empty.txt"),
-               std::make_shared<BackupEntryFromSmallFile>(encrypted_disk, "empty.txt")};
+               std::make_shared<BackupEntryFromSmallFile>(encrypted_disk, "empty.txt", ReadSettings{})};
         for (const auto & entry : entries)
         {
             EXPECT_EQ(entry->getSize(), 0);
@@ -288,7 +288,7 @@ TEST_F(BackupEntriesTest, EncryptedEntriesFromEncryptedDisk)
         BackupEntryPtr entries[]
             = {std::make_shared<BackupEntryFromImmutableFile>(encrypted_disk, "a.txt", /* copy_encrypted= */ true),
                std::make_shared<BackupEntryFromAppendOnlyFile>(encrypted_disk, "a.txt", /* copy_encrypted= */ true),
-               std::make_shared<BackupEntryFromSmallFile>(encrypted_disk, "a.txt", /* copy_encrypted= */ true)};
+               std::make_shared<BackupEntryFromSmallFile>(encrypted_disk, "a.txt", ReadSettings{}, /* copy_encrypted= */ true)};
 
         auto encrypted_checksum = getChecksum(entries[0]);
         EXPECT_NE(encrypted_checksum, NO_CHECKSUM);
@@ -322,7 +322,7 @@ TEST_F(BackupEntriesTest, EncryptedEntriesFromEncryptedDisk)
         BackupEntryPtr entries[]
             = {std::make_shared<BackupEntryFromImmutableFile>(encrypted_disk, "empty.txt", /* copy_encrypted= */ true),
                std::make_shared<BackupEntryFromAppendOnlyFile>(encrypted_disk, "empty.txt", /* copy_encrypted= */ true),
-               std::make_shared<BackupEntryFromSmallFile>(encrypted_disk, "empty.txt", /* copy_encrypted= */ true)};
+               std::make_shared<BackupEntryFromSmallFile>(encrypted_disk, "empty.txt", ReadSettings{}, /* copy_encrypted= */ true)};
         for (const auto & entry : entries)
         {
             EXPECT_EQ(entry->getSize(), 0);

src/Common/NamedCollections/NamedCollectionUtils.cpp

@@ -8,6 +8,7 @@
 #include <Parsers/formatAST.h>
 #include <Parsers/ASTCreateNamedCollectionQuery.h>
 #include <Parsers/ASTAlterNamedCollectionQuery.h>
+#include <Parsers/ASTDropNamedCollectionQuery.h>
 #include <Parsers/ASTSetQuery.h>
 #include <Parsers/ASTCreateQuery.h>
 #include <Parsers/parseQuery.h>
@@ -225,24 +226,15 @@ public:
 
     void remove(const std::string & collection_name)
     {
-        if (!removeIfExists(collection_name))
+        auto collection_path = getMetadataPath(collection_name);
+        if (!fs::exists(collection_path))
         {
             throw Exception(
                 ErrorCodes::NAMED_COLLECTION_DOESNT_EXIST,
                 "Cannot remove collection `{}`, because it doesn't exist",
                 collection_name);
         }
-    }
-
-    bool removeIfExists(const std::string & collection_name)
-    {
-        auto collection_path = getMetadataPath(collection_name);
-        if (fs::exists(collection_path))
-        {
-            fs::remove(collection_path);
-            return true;
-        }
-        return false;
+        fs::remove(collection_path);
     }
 
 private:
@@ -393,36 +385,64 @@ void loadIfNot()
     return loadIfNotUnlocked(lock);
 }
 
-void removeFromSQL(const std::string & collection_name, ContextPtr context)
+void removeFromSQL(const ASTDropNamedCollectionQuery & query, ContextPtr context)
 {
     auto lock = lockNamedCollectionsTransaction();
     loadIfNotUnlocked(lock);
-    LoadFromSQL(context).remove(collection_name);
-    NamedCollectionFactory::instance().remove(collection_name);
-}
-
-void removeIfExistsFromSQL(const std::string & collection_name, ContextPtr context)
-{
-    auto lock = lockNamedCollectionsTransaction();
-    loadIfNotUnlocked(lock);
-    LoadFromSQL(context).removeIfExists(collection_name);
-    NamedCollectionFactory::instance().removeIfExists(collection_name);
+    auto & instance = NamedCollectionFactory::instance();
+    if (!instance.exists(query.collection_name))
+    {
+        if (!query.if_exists)
+        {
+            throw Exception(
+                ErrorCodes::NAMED_COLLECTION_DOESNT_EXIST,
+                "Cannot remove collection `{}`, because it doesn't exist",
+                query.collection_name);
+        }
+        return;
+    }
+    LoadFromSQL(context).remove(query.collection_name);
+    instance.remove(query.collection_name);
 }
 
 void createFromSQL(const ASTCreateNamedCollectionQuery & query, ContextPtr context)
 {
     auto lock = lockNamedCollectionsTransaction();
     loadIfNotUnlocked(lock);
-    NamedCollectionFactory::instance().add(query.collection_name, LoadFromSQL(context).create(query));
+    auto & instance = NamedCollectionFactory::instance();
+    if (instance.exists(query.collection_name))
+    {
+        if (!query.if_not_exists)
+        {
+            throw Exception(
+                ErrorCodes::NAMED_COLLECTION_ALREADY_EXISTS,
+                "A named collection `{}` already exists",
+                query.collection_name);
+        }
+        return;
+    }
+    instance.add(query.collection_name, LoadFromSQL(context).create(query));
 }
 
 void updateFromSQL(const ASTAlterNamedCollectionQuery & query, ContextPtr context)
 {
     auto lock = lockNamedCollectionsTransaction();
     loadIfNotUnlocked(lock);
+    auto & instance = NamedCollectionFactory::instance();
+    if (!instance.exists(query.collection_name))
+    {
+        if (!query.if_exists)
+        {
+            throw Exception(
+                ErrorCodes::NAMED_COLLECTION_DOESNT_EXIST,
+                "Cannot remove collection `{}`, because it doesn't exist",
+                query.collection_name);
+        }
+        return;
+    }
     LoadFromSQL(context).update(query);
 
-    auto collection = NamedCollectionFactory::instance().getMutable(query.collection_name);
+    auto collection = instance.getMutable(query.collection_name);
     auto collection_lock = collection->lock();
 
     for (const auto & [name, value] : query.changes)

src/Common/NamedCollections/NamedCollectionUtils.h

@@ -8,6 +8,7 @@ namespace DB
 
 class ASTCreateNamedCollectionQuery;
 class ASTAlterNamedCollectionQuery;
+class ASTDropNamedCollectionQuery;
 
 namespace NamedCollectionUtils
 {
@@ -26,8 +27,7 @@ void reloadFromConfig(const Poco::Util::AbstractConfiguration & config);
 void loadFromSQL(ContextPtr context);
 
 /// Remove collection as well as its metadata from `context->getPath() / named_collections /`.
-void removeFromSQL(const std::string & collection_name, ContextPtr context);
-void removeIfExistsFromSQL(const std::string & collection_name, ContextPtr context);
+void removeFromSQL(const ASTDropNamedCollectionQuery & query, ContextPtr context);
 
 /// Create a new collection from AST and put it to `context->getPath() / named_collections /`.
 void createFromSQL(const ASTCreateNamedCollectionQuery & query, ContextPtr context);

src/Common/ProgressIndication.cpp

@@ -101,6 +101,10 @@ void ProgressIndication::writeFinalProgress()
                     << formatReadableSizeWithDecimalSuffix(progress.read_bytes * 1000000000.0 / elapsed_ns) << "/s.)";
     else
         std::cout << ". ";
+
+    auto peak_memory_usage = getMemoryUsage().peak;
+    if (peak_memory_usage >= 0)
+        std::cout << "\nPeak memory usage: " << formatReadableSizeWithBinarySuffix(peak_memory_usage) << ".";
 }
 
 void ProgressIndication::writeProgress(WriteBufferFromFileDescriptor & message)

src/Common/ThreadStatus.cpp

@@ -70,6 +70,8 @@ ThreadGroup::ThreadGroup()
 ThreadStatus::ThreadStatus(bool check_current_thread_on_destruction_)
     : thread_id{getThreadId()}, check_current_thread_on_destruction(check_current_thread_on_destruction_)
 {
+    chassert(!current_thread);
+
     last_rusage = std::make_unique<RUsageCounters>();
 
     memory_tracker.setDescription("(for thread)");
@@ -123,6 +125,7 @@ ThreadStatus::ThreadStatus(bool check_current_thread_on_destruction_)
 
 ThreadGroupPtr ThreadStatus::getThreadGroup() const
 {
+    chassert(current_thread == this);
     return thread_group;
 }
 

src/Coordination/KeeperSnapshotManagerS3.cpp

@@ -218,7 +218,7 @@ void KeeperSnapshotManagerS3::uploadSnapshotImpl(const SnapshotFileInfo & snapsh
             }
             catch (...)
             {
-                LOG_INFO(log, "Failed to delete lock file for {} from S3", snapshot_path);
+                LOG_INFO(log, "Failed to delete lock file for {} from S3", snapshot_file_info.path);
                 tryLogCurrentException(__PRETTY_FUNCTION__);
             }
         });

src/DataTypes/Serializations/SerializationWrapper.h

@@ -77,7 +77,6 @@ public:
     void deserializeTextJSON(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
     void serializeTextJSONPretty(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings & settings, size_t indent) const override;
 
-
     void serializeTextXML(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings & settings) const override;
 };
 

src/Databases/DatabaseFactory.cpp

@@ -107,9 +107,6 @@ DatabasePtr DatabaseFactory::get(const ASTCreateQuery & create, const String & m
 {
     cckMetadataPathForOrdinary(create, metadata_path);
 
-    /// Creates store/xxx/ for Atomic
-    fs::create_directories(fs::path(metadata_path).parent_path());
-
     DatabasePtr impl = getImpl(create, metadata_path, context);
 
     if (impl && context->hasQueryContext() && context->getSettingsRef().log_queries)

src/Databases/DatabaseFilesystem.cpp

@@ -11,9 +11,11 @@
 #include <Storages/IStorage.h>
 #include <TableFunctions/TableFunctionFactory.h>
 #include <Common/filesystemHelpers.h>
+#include <Formats/FormatFactory.h>
 
 #include <filesystem>
 
+
 namespace fs = std::filesystem;
 
 namespace DB
@@ -75,10 +77,8 @@ bool DatabaseFilesystem::checkTableFilePath(const std::string & table_path, Cont
     /// Check access for file before checking its existence.
     if (check_path && !fileOrSymlinkPathStartsWith(table_path, user_files_path))
     {
-        if (throw_on_error)
-            throw Exception(ErrorCodes::PATH_ACCESS_DENIED, "File is not inside {}", user_files_path);
-        else
-            return false;
+        /// Access denied is thrown regardless of 'throw_on_error'
+        throw Exception(ErrorCodes::PATH_ACCESS_DENIED, "File is not inside {}", user_files_path);
     }
 
     /// Check if the corresponding file exists.
@@ -128,20 +128,25 @@ bool DatabaseFilesystem::isTableExist(const String & name, ContextPtr context_)
     if (tryGetTableFromCache(name))
         return true;
 
-    return checkTableFilePath(getTablePath(name), context_, /* throw_on_error */false);
+    return checkTableFilePath(getTablePath(name), context_, /* throw_on_error */ false);
 }
 
-StoragePtr DatabaseFilesystem::getTableImpl(const String & name, ContextPtr context_) const
+StoragePtr DatabaseFilesystem::getTableImpl(const String & name, ContextPtr context_, bool throw_on_error) const
 {
     /// Check if table exists in loaded tables map.
     if (auto table = tryGetTableFromCache(name))
         return table;
 
     auto table_path = getTablePath(name);
-    checkTableFilePath(table_path, context_, /* throw_on_error */true);
+    if (!checkTableFilePath(table_path, context_, throw_on_error))
+        return {};
+
+    String format = FormatFactory::instance().getFormatFromFileName(table_path, throw_on_error);
+    if (format.empty())
+        return {};
 
     /// If the file exists, create a new table using TableFunctionFile and return it.
-    auto args = makeASTFunction("file", std::make_shared<ASTLiteral>(table_path));
+    auto args = makeASTFunction("file", std::make_shared<ASTLiteral>(table_path), std::make_shared<ASTLiteral>(format));
 
     auto table_function = TableFunctionFactory::instance().get(args, context_);
     if (!table_function)
@@ -158,7 +163,7 @@ StoragePtr DatabaseFilesystem::getTableImpl(const String & name, ContextPtr cont
 StoragePtr DatabaseFilesystem::getTable(const String & name, ContextPtr context_) const
 {
     /// getTableImpl can throw exceptions, do not catch them to show correct error to user.
-    if (auto storage = getTableImpl(name, context_))
+    if (auto storage = getTableImpl(name, context_, true))
         return storage;
 
     throw Exception(ErrorCodes::UNKNOWN_TABLE, "Table {}.{} doesn't exist",
@@ -167,20 +172,7 @@ StoragePtr DatabaseFilesystem::getTable(const String & name, ContextPtr context_
 
 StoragePtr DatabaseFilesystem::tryGetTable(const String & name, ContextPtr context_) const
 {
-    try
-    {
-        return getTableImpl(name, context_);
-    }
-    catch (const Exception & e)
-    {
-        /// Ignore exceptions thrown by TableFunctionFile, which indicate that there is no table
-        /// see tests/02722_database_filesystem.sh for more details.
-        if (e.code() == ErrorCodes::FILE_DOESNT_EXIST)
-        {
-            return nullptr;
-        }
-        throw;
-    }
+    return getTableImpl(name, context_, false);
 }
 
 bool DatabaseFilesystem::empty() const

src/Databases/DatabaseFilesystem.h

@@ -48,7 +48,7 @@ public:
     DatabaseTablesIteratorPtr getTablesIterator(ContextPtr, const FilterByNameFunction &) const override;
 
 protected:
-    StoragePtr getTableImpl(const String & name, ContextPtr context) const;
+    StoragePtr getTableImpl(const String & name, ContextPtr context, bool throw_on_error) const;
 
     StoragePtr tryGetTableFromCache(const std::string & name) const;
 

src/Databases/MySQL/DatabaseMySQL.cpp

@@ -77,6 +77,8 @@ DatabaseMySQL::DatabaseMySQL(
             throw;
     }
 
+    fs::create_directories(metadata_path);
+
     thread = ThreadFromGlobalPool{&DatabaseMySQL::cleanOutdatedTables, this};
 }
 

src/Databases/PostgreSQL/DatabasePostgreSQL.cpp

@@ -54,6 +54,7 @@ DatabasePostgreSQL::DatabasePostgreSQL(
     , cache_tables(cache_tables_)
     , log(&Poco::Logger::get("DatabasePostgreSQL(" + dbname_ + ")"))
 {
+    fs::create_directories(metadata_path);
     cleaner_task = getContext()->getSchedulePool().createTask("PostgreSQLCleanerTask", [this]{ removeOutdatedTables(); });
     cleaner_task->deactivate();
 }

src/Disks/IO/CachedOnDiskReadBufferFromFile.cpp

@@ -74,19 +74,22 @@ CachedOnDiskReadBufferFromFile::CachedOnDiskReadBufferFromFile(
 }
 
 void CachedOnDiskReadBufferFromFile::appendFilesystemCacheLog(
-    const FileSegment::Range & file_segment_range, CachedOnDiskReadBufferFromFile::ReadType type)
+    const FileSegment & file_segment, CachedOnDiskReadBufferFromFile::ReadType type)
 {
     if (!cache_log)
         return;
 
+    const auto range = file_segment.range();
     FilesystemCacheLogElement elem
     {
         .event_time = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now()),
         .query_id = query_id,
         .source_file_path = source_file_path,
-        .file_segment_range = { file_segment_range.left, file_segment_range.right },
+        .file_segment_range = { range.left, range.right },
         .requested_range = { first_offset, read_until_position },
-        .file_segment_size = file_segment_range.size(),
+        .file_segment_key = file_segment.key().toString(),
+        .file_segment_offset = file_segment.offset(),
+        .file_segment_size = range.size(),
         .read_from_cache_attempted = true,
         .read_buffer_id = current_buffer_id,
         .profile_counters = std::make_shared<ProfileEvents::Counters::Snapshot>(
@@ -495,7 +498,7 @@ bool CachedOnDiskReadBufferFromFile::completeFileSegmentAndGetNext()
     auto completed_range = current_file_segment->range();
 
     if (cache_log)
-        appendFilesystemCacheLog(completed_range, read_type);
+        appendFilesystemCacheLog(*current_file_segment, read_type);
 
     chassert(file_offset_of_buffer_end > completed_range.right);
 
@@ -518,7 +521,7 @@ CachedOnDiskReadBufferFromFile::~CachedOnDiskReadBufferFromFile()
 {
     if (cache_log && file_segments && !file_segments->empty())
     {
-        appendFilesystemCacheLog(file_segments->front().range(), read_type);
+        appendFilesystemCacheLog(file_segments->front(), read_type);
     }
 }
 

src/Disks/IO/CachedOnDiskReadBufferFromFile.h

@@ -90,7 +90,7 @@ private:
 
     bool completeFileSegmentAndGetNext();
 
-    void appendFilesystemCacheLog(const FileSegment::Range & file_segment_range, ReadType read_type);
+    void appendFilesystemCacheLog(const FileSegment & file_segment, ReadType read_type);
 
     bool writeCache(char * data, size_t size, size_t offset, FileSegment & file_segment);
 

src/Disks/IO/ReadBufferFromRemoteFSGather.cpp

@@ -109,6 +109,8 @@ void ReadBufferFromRemoteFSGather::appendUncachedReadInfo()
         .source_file_path = current_object.remote_path,
         .file_segment_range = { 0, current_object.bytes_size },
         .cache_type = FilesystemCacheLogElement::CacheType::READ_FROM_FS_BYPASSING_CACHE,
+        .file_segment_key = {},
+        .file_segment_offset = {},
         .file_segment_size = current_object.bytes_size,
         .read_from_cache_attempted = false,
     };

src/Functions/array/arrayIntersect.cpp

@@ -510,11 +510,12 @@ ColumnPtr FunctionArrayIntersect::execute(const UnpackedArrays & arrays, Mutable
         map.clear();
 
         bool all_has_nullable = all_nullable;
+        bool current_has_nullable = false;
 
         for (size_t arg_num = 0; arg_num < args; ++arg_num)
         {
             const auto & arg = arrays.args[arg_num];
-            bool current_has_nullable = false;
+            current_has_nullable = false;
 
             size_t off;
             // const array has only one row
@@ -549,44 +550,93 @@ ColumnPtr FunctionArrayIntersect::execute(const UnpackedArrays & arrays, Mutable
                 }
             }
 
-            prev_off[arg_num] = off;
-            if (arg.is_const)
-                prev_off[arg_num] = 0;
-
+            // We update offsets for all the arrays except the first one. Offsets for the first array would be updated later.
+            // It is needed to iterate the first array again so that the elements in the result would have fixed order.
+            if (arg_num)
+            {
+                prev_off[arg_num] = off;
+                if (arg.is_const)
+                    prev_off[arg_num] = 0;
+            }
             if (!current_has_nullable)
                 all_has_nullable = false;
         }
 
-        if (all_has_nullable)
-        {
-            ++result_offset;
-            result_data.insertDefault();
-            null_map.push_back(1);
-        }
+        // We have NULL in output only once if it should be there
+        bool null_added = false;
+        const auto & arg = arrays.args[0];
+        size_t off;
+        // const array has only one row
+        if (arg.is_const)
+            off = (*arg.offsets)[0];
+        else
+            off = (*arg.offsets)[row];
 
-        for (const auto & pair : map)
+        for (auto i : collections::range(prev_off[0], off))
         {
-            if (pair.getMapped() == args)
+            all_has_nullable = all_nullable;
+            typename Map::LookupResult pair = nullptr;
+
+            if (arg.null_map && (*arg.null_map)[i])
             {
+                current_has_nullable = true;
+                if (all_has_nullable && !null_added)
+                {
+                    ++result_offset;
+                    result_data.insertDefault();
+                    null_map.push_back(1);
+                    null_added = true;
+                }
+                if (null_added)
+                    continue;
+            }
+            else if constexpr (is_numeric_column)
+            {
+                pair = map.find(columns[0]->getElement(i));
+            }
+            else if constexpr (std::is_same_v<ColumnType, ColumnString> || std::is_same_v<ColumnType, ColumnFixedString>)
+                pair = map.find(columns[0]->getDataAt(i));
+            else
+            {
+                const char * data = nullptr;
+                pair = map.find(columns[0]->serializeValueIntoArena(i, arena, data));
+            }
+            prev_off[0] = off;
+            if (arg.is_const)
+                prev_off[0] = 0;
+
+            if (!current_has_nullable)
+                all_has_nullable = false;
+
+            if (pair && pair->getMapped() == args)
+            {
+                // We increase pair->getMapped() here to not skip duplicate values from the first array.
+                ++pair->getMapped();
                 ++result_offset;
                 if constexpr (is_numeric_column)
-                    result_data.insertValue(pair.getKey());
+                {
+                    result_data.insertValue(pair->getKey());
+                }
                 else if constexpr (std::is_same_v<ColumnType, ColumnString> || std::is_same_v<ColumnType, ColumnFixedString>)
-                    result_data.insertData(pair.getKey().data, pair.getKey().size);
+                {
+                    result_data.insertData(pair->getKey().data, pair->getKey().size);
+                }
                 else
-                    result_data.deserializeAndInsertFromArena(pair.getKey().data);
-
+                {
+                    result_data.deserializeAndInsertFromArena(pair->getKey().data);
+                }
                 if (all_nullable)
                     null_map.push_back(0);
             }
         }
         result_offsets.getElement(row) = result_offset;
-    }
 
+    }
     ColumnPtr result_column = std::move(result_data_ptr);
     if (all_nullable)
         result_column = ColumnNullable::create(result_column, std::move(null_map_column));
     return ColumnArray::create(result_column, std::move(result_offsets_ptr));
+
 }
 
 

src/Interpreters/ActionLocksManager.cpp

@@ -16,6 +16,7 @@ namespace ActionLocks
     extern const StorageActionBlockType DistributedSend = 5;
     extern const StorageActionBlockType PartsTTLMerge = 6;
     extern const StorageActionBlockType PartsMove = 7;
+    extern const StorageActionBlockType PullReplicationLog = 8;
 }
 
 

src/Interpreters/Cache/FileCache.cpp

@@ -806,6 +806,13 @@ bool FileCache::tryReserve(FileSegment & file_segment, const size_t size)
     return true;
 }
 
+void FileCache::removeKey(const Key & key)
+{
+    assertInitialized();
+    auto locked_key = metadata.lockKeyMetadata(key, CacheMetadata::KeyNotFoundPolicy::THROW);
+    locked_key->removeAll();
+}
+
 void FileCache::removeKeyIfExists(const Key & key)
 {
     assertInitialized();
@@ -818,7 +825,14 @@ void FileCache::removeKeyIfExists(const Key & key)
     /// But if we have multiple replicated zero-copy tables on the same server
     /// it became possible to start removing something from cache when it is used
     /// by other "zero-copy" tables. That is why it's not an error.
-    locked_key->removeAllReleasable();
+    locked_key->removeAll(/* if_releasable */true);
+}
+
+void FileCache::removeFileSegment(const Key & key, size_t offset)
+{
+    assertInitialized();
+    auto locked_key = metadata.lockKeyMetadata(key, CacheMetadata::KeyNotFoundPolicy::THROW);
+    locked_key->removeFileSegment(offset);
 }
 
 void FileCache::removePathIfExists(const String & path)
@@ -830,22 +844,12 @@ void FileCache::removeAllReleasable()
 {
     assertInitialized();
 
-    auto lock = lockCache();
-
-    main_priority->iterate([&](LockedKey & locked_key, const FileSegmentMetadataPtr & segment_metadata)
-    {
-        if (segment_metadata->releasable())
-        {
-            auto file_segment = segment_metadata->file_segment;
-            locked_key.removeFileSegment(file_segment->offset(), file_segment->lock());
-            return PriorityIterationResult::REMOVE_AND_CONTINUE;
-        }
-        return PriorityIterationResult::CONTINUE;
-    }, lock);
+    metadata.iterate([](LockedKey & locked_key) { locked_key.removeAll(/* if_releasable */true); });
 
     if (stash)
     {
         /// Remove all access information.
+        auto lock = lockCache();
         stash->records.clear();
         stash->queue->removeAll(lock);
     }
@@ -914,7 +918,7 @@ void FileCache::loadMetadata()
                 continue;
             }
 
-            const auto key = Key(unhexUInt<UInt128>(key_directory.filename().string().data()));
+            const auto key = Key::fromKeyString(key_directory.filename().string());
             auto locked_key = metadata.lockKeyMetadata(key, CacheMetadata::KeyNotFoundPolicy::CREATE_EMPTY, /* is_initial_load */true);
 
             for (fs::directory_iterator offset_it{key_directory}; offset_it != fs::directory_iterator(); ++offset_it)
@@ -1069,7 +1073,7 @@ FileSegmentsHolderPtr FileCache::getSnapshot()
 FileSegmentsHolderPtr FileCache::getSnapshot(const Key & key)
 {
     FileSegments file_segments;
-    auto locked_key = metadata.lockKeyMetadata(key, CacheMetadata::KeyNotFoundPolicy::THROW);
+    auto locked_key = metadata.lockKeyMetadata(key, CacheMetadata::KeyNotFoundPolicy::THROW_LOGICAL);
     for (const auto & [_, file_segment_metadata] : *locked_key->getKeyMetadata())
         file_segments.push_back(FileSegment::getSnapshot(file_segment_metadata->file_segment));
     return std::make_unique<FileSegmentsHolder>(std::move(file_segments));

src/Interpreters/Cache/FileCache.h

@@ -83,13 +83,19 @@ public:
 
     FileSegmentsHolderPtr set(const Key & key, size_t offset, size_t size, const CreateFileSegmentSettings & settings);
 
-    /// Remove files by `key`. Removes files which might be used at the moment.
+    /// Remove file segment by `key` and `offset`. Throws if file segment does not exist.
+    void removeFileSegment(const Key & key, size_t offset);
+
+    /// Remove files by `key`. Throws if key does not exist.
+    void removeKey(const Key & key);
+
+    /// Remove files by `key`.
     void removeKeyIfExists(const Key & key);
 
-    /// Removes files by `path`. Removes files which might be used at the moment.
+    /// Removes files by `path`.
     void removePathIfExists(const String & path);
 
-    /// Remove files by `key`. Will not remove files which are used at the moment.
+    /// Remove files by `key`.
     void removeAllReleasable();
 
     std::vector<String> tryGetCachePaths(const Key & key);

src/Interpreters/Cache/FileCacheKey.cpp

@@ -7,6 +7,10 @@
 
 namespace DB
 {
+namespace ErrorCodes
+{
+    extern const int BAD_ARGUMENTS;
+}
 
 FileCacheKey::FileCacheKey(const std::string & path)
     : key(sipHash128(path.data(), path.size()))
@@ -28,4 +32,11 @@ FileCacheKey FileCacheKey::random()
     return FileCacheKey(UUIDHelpers::generateV4().toUnderType());
 }
 
+FileCacheKey FileCacheKey::fromKeyString(const std::string & key_str)
+{
+    if (key_str.size() != 32)
+        throw Exception(ErrorCodes::BAD_ARGUMENTS, "Invalid cache key hex: {}", key_str);
+    return FileCacheKey(unhexUInt<UInt128>(key_str.data()));
+}
+
 }

src/Interpreters/Cache/FileCacheKey.h

@@ -21,6 +21,8 @@ struct FileCacheKey
     static FileCacheKey random();
 
     bool operator==(const FileCacheKey & other) const { return key == other.key; }
+
+    static FileCacheKey fromKeyString(const std::string & key_str);
 };
 
 using FileCacheKeyAndOffset = std::pair<FileCacheKey, size_t>;

src/Interpreters/Cache/Metadata.cpp

@@ -25,6 +25,7 @@ namespace DB
 namespace ErrorCodes
 {
     extern const int LOGICAL_ERROR;
+    extern const int BAD_ARGUMENTS;
 }
 
 FileSegmentMetadata::FileSegmentMetadata(FileSegmentPtr && file_segment_)
@@ -191,6 +192,8 @@ LockedKeyPtr CacheMetadata::lockKeyMetadata(
         if (it == end())
         {
             if (key_not_found_policy == KeyNotFoundPolicy::THROW)
+                throw Exception(ErrorCodes::BAD_ARGUMENTS, "No such key `{}` in cache", key);
+            else if (key_not_found_policy == KeyNotFoundPolicy::THROW_LOGICAL)
                 throw Exception(ErrorCodes::LOGICAL_ERROR, "No such key `{}` in cache", key);
             else if (key_not_found_policy == KeyNotFoundPolicy::RETURN_NULL)
                 return nullptr;
@@ -215,6 +218,8 @@ LockedKeyPtr CacheMetadata::lockKeyMetadata(
             return locked_metadata;
 
         if (key_not_found_policy == KeyNotFoundPolicy::THROW)
+            throw Exception(ErrorCodes::BAD_ARGUMENTS, "No such key `{}` in cache", key);
+        else if (key_not_found_policy == KeyNotFoundPolicy::THROW_LOGICAL)
             throw Exception(ErrorCodes::LOGICAL_ERROR, "No such key `{}` in cache", key);
 
         if (key_not_found_policy == KeyNotFoundPolicy::RETURN_NULL)
@@ -561,11 +566,11 @@ bool LockedKey::isLastOwnerOfFileSegment(size_t offset) const
     return file_segment_metadata->file_segment.use_count() == 2;
 }
 
-void LockedKey::removeAllReleasable()
+void LockedKey::removeAll(bool if_releasable)
 {
     for (auto it = key_metadata->begin(); it != key_metadata->end();)
     {
-        if (!it->second->releasable())
+        if (if_releasable && !it->second->releasable())
         {
             ++it;
             continue;
@@ -586,17 +591,32 @@ void LockedKey::removeAllReleasable()
     }
 }
 
+KeyMetadata::iterator LockedKey::removeFileSegment(size_t offset)
+{
+    auto it = key_metadata->find(offset);
+    if (it == key_metadata->end())
+        throw Exception(ErrorCodes::BAD_ARGUMENTS, "There is no offset {}", offset);
+
+    auto file_segment = it->second->file_segment;
+    return removeFileSegmentImpl(it, file_segment->lock());
+}
+
 KeyMetadata::iterator LockedKey::removeFileSegment(size_t offset, const FileSegmentGuard::Lock & segment_lock)
 {
     auto it = key_metadata->find(offset);
     if (it == key_metadata->end())
         throw Exception(ErrorCodes::LOGICAL_ERROR, "There is no offset {}", offset);
 
+    return removeFileSegmentImpl(it, segment_lock);
+}
+
+KeyMetadata::iterator LockedKey::removeFileSegmentImpl(KeyMetadata::iterator it, const FileSegmentGuard::Lock & segment_lock)
+{
     auto file_segment = it->second->file_segment;
 
     LOG_DEBUG(
         key_metadata->log, "Remove from cache. Key: {}, offset: {}, size: {}",
-        getKey(), offset, file_segment->reserved_size);
+        getKey(), file_segment->offset(), file_segment->reserved_size);
 
     chassert(file_segment->assertCorrectnessUnlocked(segment_lock));
 

src/Interpreters/Cache/Metadata.h

@@ -87,7 +87,7 @@ struct CacheMetadata : public std::unordered_map<FileCacheKey, KeyMetadataPtr>,
 {
 public:
     using Key = FileCacheKey;
-    using IterateCacheMetadataFunc = std::function<void(const LockedKey &)>;
+    using IterateCacheMetadataFunc = std::function<void(LockedKey &)>;
 
     explicit CacheMetadata(const std::string & path_);
 
@@ -106,6 +106,7 @@ public:
     enum class KeyNotFoundPolicy
     {
         THROW,
+        THROW_LOGICAL,
         CREATE_EMPTY,
         RETURN_NULL,
     };
@@ -169,9 +170,10 @@ struct LockedKey : private boost::noncopyable
     std::shared_ptr<const KeyMetadata> getKeyMetadata() const { return key_metadata; }
     std::shared_ptr<KeyMetadata> getKeyMetadata() { return key_metadata; }
 
-    void removeAllReleasable();
+    void removeAll(bool if_releasable = true);
 
     KeyMetadata::iterator removeFileSegment(size_t offset, const FileSegmentGuard::Lock &);
+    KeyMetadata::iterator removeFileSegment(size_t offset);
 
     void shrinkFileSegmentToDownloadedSize(size_t offset, const FileSegmentGuard::Lock &);
 
@@ -188,6 +190,8 @@ struct LockedKey : private boost::noncopyable
     std::string toString() const;
 
 private:
+    KeyMetadata::iterator removeFileSegmentImpl(KeyMetadata::iterator it, const FileSegmentGuard::Lock &);
+
     const std::shared_ptr<KeyMetadata> key_metadata;
     KeyGuard::Lock lock; /// `lock` must be destructed before `key_metadata`.
 };

src/Interpreters/Context.cpp

@@ -1089,52 +1089,32 @@ ConfigurationPtr Context::getUsersConfig()
     return shared->users_config;
 }
 
-void Context::setUser(const UUID & user_id_, bool set_current_profiles_, bool set_current_roles_, bool set_current_database_)
+void Context::setUser(const UUID & user_id_, const std::optional<const std::vector<UUID>> & current_roles_)
 {
     /// Prepare lists of user's profiles, constraints, settings, roles.
+    /// NOTE: AccessControl::read<User>() and other AccessControl's functions may require some IO work,
+    /// so Context::getLock() must be unlocked while we're doing this.
 
-    std::shared_ptr<const User> user;
-    std::shared_ptr<const ContextAccess> temp_access;
-    if (set_current_profiles_ || set_current_roles_ || set_current_database_)
-    {
-        std::optional<ContextAccessParams> params;
-        {
-            auto lock = getLock();
-            params.emplace(ContextAccessParams{user_id_, /* full_access= */ false, /* use_default_roles = */ true, {}, settings, current_database, client_info });
-        }
-        /// `temp_access` is used here only to extract information about the user, not to actually check access.
-        /// NOTE: AccessControl::getContextAccess() may require some IO work, so Context::getLock() must be unlocked while we're doing this.
-        temp_access = getAccessControl().getContextAccess(*params);
-        user = temp_access->getUser();
-    }
+    auto user = getAccessControl().read<User>(user_id_);
 
-    std::shared_ptr<const SettingsProfilesInfo> profiles;
-    if (set_current_profiles_)
-        profiles = temp_access->getDefaultProfileInfo();
-
-    std::optional<std::vector<UUID>> roles;
-    if (set_current_roles_)
-        roles = user->granted_roles.findGranted(user->default_roles);
-
-    String database;
-    if (set_current_database_)
-        database = user->default_database;
+    auto new_current_roles = current_roles_ ? user->granted_roles.findGranted(*current_roles_) : user->granted_roles.findGranted(user->default_roles);
+    auto enabled_roles = getAccessControl().getEnabledRolesInfo(new_current_roles, {});
+    auto enabled_profiles = getAccessControl().getEnabledSettingsInfo(user_id_, user->settings, enabled_roles->enabled_roles, enabled_roles->settings_from_enabled_roles);
+    const auto & database = user->default_database;
 
     /// Apply user's profiles, constraints, settings, roles.
+
     auto lock = getLock();
 
     setUserID(user_id_);
 
-    if (profiles)
-    {
-        /// A profile can specify a value and a readonly constraint for same setting at the same time,
-        /// so we shouldn't check constraints here.
-        setCurrentProfiles(*profiles, /* check_constraints= */ false);
-    }
+    /// A profile can specify a value and a readonly constraint for same setting at the same time,
+    /// so we shouldn't check constraints here.
+    setCurrentProfiles(*enabled_profiles, /* check_constraints= */ false);
 
-    if (roles)
-        setCurrentRoles(*roles);
+    setCurrentRoles(new_current_roles);
 
+    /// It's optional to specify the DEFAULT DATABASE in the user's definition.
     if (!database.empty())
         setCurrentDatabase(database);
 }
@@ -4550,14 +4530,6 @@ ReadSettings Context::getReadSettings() const
     return res;
 }
 
-ReadSettings Context::getBackupReadSettings() const
-{
-    ReadSettings read_settings = getReadSettings();
-    read_settings.remote_throttler = getBackupsThrottler();
-    read_settings.local_throttler = getBackupsThrottler();
-    return read_settings;
-}
-
 WriteSettings Context::getWriteSettings() const
 {
     WriteSettings res;

src/Interpreters/Context.h

@@ -534,12 +534,10 @@ public:
 
     /// Sets the current user assuming that he/she is already authenticated.
     /// WARNING: This function doesn't check password!
-    void setUser(const UUID & user_id_, bool set_current_profiles_ = true, bool set_current_roles_ = true, bool set_current_database_ = true);
+    void setUser(const UUID & user_id_, const std::optional<const std::vector<UUID>> & current_roles_ = {});
     UserPtr getUser() const;
 
-    void setUserID(const UUID & user_id_);
     std::optional<UUID> getUserID() const;
-
     String getUserName() const;
 
     void setCurrentRoles(const std::vector<UUID> & current_roles_);
@@ -1168,9 +1166,6 @@ public:
     /** Get settings for reading from filesystem. */
     ReadSettings getReadSettings() const;
 
-    /** Get settings for reading from filesystem for BACKUPs. */
-    ReadSettings getBackupReadSettings() const;
-
     /** Get settings for writing to filesystem. */
     WriteSettings getWriteSettings() const;
 
@@ -1195,6 +1190,8 @@ private:
 
     void initGlobal();
 
+    void setUserID(const UUID & user_id_);
+
     template <typename... Args>
     void checkAccessImpl(const Args &... args) const;
 

src/Interpreters/DatabaseCatalog.cpp

@@ -336,7 +336,6 @@ DatabaseAndTable DatabaseCatalog::getTableImpl(
         return db_and_table;
     }
 
-
     if (table_id.database_name == TEMPORARY_DATABASE)
     {
         /// For temporary tables UUIDs are set in Context::resolveStorageID(...).
@@ -369,8 +368,24 @@ DatabaseAndTable DatabaseCatalog::getTableImpl(
         database = it->second;
     }
 
-    auto table = database->tryGetTable(table_id.table_name, context_);
-    if (!table && exception)
+    StoragePtr table;
+    if (exception)
+    {
+        try
+        {
+            table = database->getTable(table_id.table_name, context_);
+        }
+        catch (const Exception & e)
+        {
+            exception->emplace(e);
+        }
+    }
+    else
+    {
+        table = database->tryGetTable(table_id.table_name, context_);
+    }
+
+    if (!table && exception && !exception->has_value())
         exception->emplace(Exception(ErrorCodes::UNKNOWN_TABLE, "Table {} doesn't exist", table_id.getNameForLogs()));
 
     if (!table)

src/Interpreters/FilesystemCacheLog.cpp

@@ -40,6 +40,8 @@ NamesAndTypesList FilesystemCacheLogElement::getNamesAndTypes()
         {"source_file_path", std::make_shared<DataTypeString>()},
         {"file_segment_range", std::make_shared<DataTypeTuple>(types)},
         {"total_requested_range", std::make_shared<DataTypeTuple>(types)},
+        {"key", std::make_shared<DataTypeString>()},
+        {"offset", std::make_shared<DataTypeUInt64>()},
         {"size", std::make_shared<DataTypeUInt64>()},
         {"read_type", std::make_shared<DataTypeString>()},
         {"read_from_cache_attempted", std::make_shared<DataTypeUInt8>()},
@@ -60,6 +62,8 @@ void FilesystemCacheLogElement::appendToBlock(MutableColumns & columns) const
     columns[i++]->insert(source_file_path);
     columns[i++]->insert(Tuple{file_segment_range.first, file_segment_range.second});
     columns[i++]->insert(Tuple{requested_range.first, requested_range.second});
+    columns[i++]->insert(file_segment_key);
+    columns[i++]->insert(file_segment_offset);
     columns[i++]->insert(file_segment_size);
     columns[i++]->insert(typeToString(cache_type));
     columns[i++]->insert(read_from_cache_attempted);

src/Interpreters/FilesystemCacheLog.h

@@ -11,16 +11,7 @@
 
 namespace DB
 {
-///
-/// -------- Column --------- Type ------
-/// |  event_date         |  DateTime   |
-/// |  event_time         |  UInt64     |
-/// |  query_id           |  String     |
-/// |  remote_file_path   |  String     |
-/// |  segment_range      |  Tuple      |
-/// |  read_type          |  String     |
-/// -------------------------------------
-///
+
 struct FilesystemCacheLogElement
 {
     enum class CacheType
@@ -39,6 +30,8 @@ struct FilesystemCacheLogElement
     std::pair<size_t, size_t> file_segment_range{};
     std::pair<size_t, size_t> requested_range{};
     CacheType cache_type{};
+    std::string file_segment_key;
+    size_t file_segment_offset;
     size_t file_segment_size;
     bool read_from_cache_attempted;
     String read_buffer_id;

src/Interpreters/InterpreterCreateNamedCollectionQuery.cpp

@@ -1,5 +1,4 @@
 #include <Interpreters/InterpreterCreateNamedCollectionQuery.h>
-
 #include <Parsers/ASTCreateNamedCollectionQuery.h>
 #include <Access/ContextAccess.h>
 #include <Interpreters/Context.h>

src/Interpreters/InterpreterDropNamedCollectionQuery.cpp

@@ -22,11 +22,7 @@ BlockIO InterpreterDropNamedCollectionQuery::execute()
         return executeDDLQueryOnCluster(query_ptr, current_context, params);
     }
 
-    if (query.if_exists)
-        NamedCollectionUtils::removeIfExistsFromSQL(query.collection_name, current_context);
-    else
-        NamedCollectionUtils::removeFromSQL(query.collection_name, current_context);
-
+    NamedCollectionUtils::removeFromSQL(query, current_context);
     return {};
 }
 

src/Interpreters/InterpreterSystemQuery.cpp

@@ -89,13 +89,14 @@ namespace ErrorCodes
 
 namespace ActionLocks
 {
-    extern StorageActionBlockType PartsMerge;
-    extern StorageActionBlockType PartsFetch;
-    extern StorageActionBlockType PartsSend;
-    extern StorageActionBlockType ReplicationQueue;
-    extern StorageActionBlockType DistributedSend;
-    extern StorageActionBlockType PartsTTLMerge;
-    extern StorageActionBlockType PartsMove;
+    extern const StorageActionBlockType PartsMerge;
+    extern const StorageActionBlockType PartsFetch;
+    extern const StorageActionBlockType PartsSend;
+    extern const StorageActionBlockType ReplicationQueue;
+    extern const StorageActionBlockType DistributedSend;
+    extern const StorageActionBlockType PartsTTLMerge;
+    extern const StorageActionBlockType PartsMove;
+    extern const StorageActionBlockType PullReplicationLog;
 }
 
 
@@ -155,6 +156,8 @@ AccessType getRequiredAccessType(StorageActionBlockType action_type)
         return AccessType::SYSTEM_TTL_MERGES;
     else if (action_type == ActionLocks::PartsMove)
         return AccessType::SYSTEM_MOVES;
+    else if (action_type == ActionLocks::PullReplicationLog)
+        return AccessType::SYSTEM_PULLING_REPLICATION_LOG;
     else
         throw Exception(ErrorCodes::LOGICAL_ERROR, "Unknown action type: {}", std::to_string(action_type));
 }
@@ -371,7 +374,18 @@ BlockIO InterpreterSystemQuery::execute()
             else
             {
                 auto cache = FileCacheFactory::instance().getByName(query.filesystem_cache_name).cache;
-                cache->removeAllReleasable();
+                if (query.key_to_drop.empty())
+                {
+                    cache->removeAllReleasable();
+                }
+                else
+                {
+                    auto key = FileCacheKey::fromKeyString(query.key_to_drop);
+                    if (query.offset_to_drop.has_value())
+                        cache->removeFileSegment(key, query.offset_to_drop.value());
+                    else
+                        cache->removeKey(key);
+                }
             }
             break;
         }
@@ -502,6 +516,12 @@ BlockIO InterpreterSystemQuery::execute()
         case Type::START_DISTRIBUTED_SENDS:
             startStopAction(ActionLocks::DistributedSend, true);
             break;
+        case Type::STOP_PULLING_REPLICATION_LOG:
+            startStopAction(ActionLocks::PullReplicationLog, false);
+            break;
+        case Type::START_PULLING_REPLICATION_LOG:
+            startStopAction(ActionLocks::PullReplicationLog, true);
+            break;
         case Type::DROP_REPLICA:
             dropReplica(query);
             break;
@@ -1079,6 +1099,15 @@ AccessRightsElements InterpreterSystemQuery::getRequiredAccessForDDLOnCluster()
                 required_access.emplace_back(AccessType::SYSTEM_MOVES, query.getDatabase(), query.getTable());
             break;
         }
+        case Type::STOP_PULLING_REPLICATION_LOG:
+        case Type::START_PULLING_REPLICATION_LOG:
+        {
+            if (!query.table)
+                required_access.emplace_back(AccessType::SYSTEM_PULLING_REPLICATION_LOG);
+            else
+                required_access.emplace_back(AccessType::SYSTEM_PULLING_REPLICATION_LOG, query.getDatabase(), query.getTable());
+            break;
+        }
         case Type::STOP_FETCHES:
         case Type::START_FETCHES:
         {

src/Interpreters/WindowDescription.cpp

@@ -91,34 +91,30 @@ void WindowFrame::toString(WriteBuffer & buf) const
 void WindowFrame::checkValid() const
 {
     // Check the validity of offsets.
-    if (type == WindowFrame::FrameType::ROWS
-        || type == WindowFrame::FrameType::GROUPS)
+    if (begin_type == BoundaryType::Offset
+        && !((begin_offset.getType() == Field::Types::UInt64
+                || begin_offset.getType() == Field::Types::Int64)
+            && begin_offset.get<Int64>() >= 0
+            && begin_offset.get<Int64>() < INT_MAX))
     {
-        if (begin_type == BoundaryType::Offset
-            && !((begin_offset.getType() == Field::Types::UInt64
-                    || begin_offset.getType() == Field::Types::Int64)
-                && begin_offset.get<Int64>() >= 0
-                && begin_offset.get<Int64>() < INT_MAX))
-        {
-            throw Exception(ErrorCodes::BAD_ARGUMENTS,
-                "Frame start offset for '{}' frame must be a nonnegative 32-bit integer, '{}' of type '{}' given",
-                type,
-                applyVisitor(FieldVisitorToString(), begin_offset),
-                begin_offset.getType());
-        }
+        throw Exception(ErrorCodes::BAD_ARGUMENTS,
+            "Frame start offset for '{}' frame must be a nonnegative 32-bit integer, '{}' of type '{}' given",
+            type,
+            applyVisitor(FieldVisitorToString(), begin_offset),
+            begin_offset.getType());
+    }
 
-        if (end_type == BoundaryType::Offset
-            && !((end_offset.getType() == Field::Types::UInt64
-                    || end_offset.getType() == Field::Types::Int64)
-                && end_offset.get<Int64>() >= 0
-                && end_offset.get<Int64>() < INT_MAX))
-        {
-            throw Exception(ErrorCodes::BAD_ARGUMENTS,
-                "Frame end offset for '{}' frame must be a nonnegative 32-bit integer, '{}' of type '{}' given",
-                type,
-                applyVisitor(FieldVisitorToString(), end_offset),
-                end_offset.getType());
-        }
+    if (end_type == BoundaryType::Offset
+        && !((end_offset.getType() == Field::Types::UInt64
+                || end_offset.getType() == Field::Types::Int64)
+            && end_offset.get<Int64>() >= 0
+            && end_offset.get<Int64>() < INT_MAX))
+    {
+        throw Exception(ErrorCodes::BAD_ARGUMENTS,
+            "Frame end offset for '{}' frame must be a nonnegative 32-bit integer, '{}' of type '{}' given",
+            type,
+            applyVisitor(FieldVisitorToString(), end_offset),
+            end_offset.getType());
     }
 
     // Check relative positioning of offsets.

src/Interpreters/loadMetadata.cpp

@@ -45,10 +45,10 @@ namespace ErrorCodes
 
 namespace ActionLocks
 {
-    extern StorageActionBlockType PartsMerge;
-    extern StorageActionBlockType PartsFetch;
-    extern StorageActionBlockType PartsSend;
-    extern StorageActionBlockType DistributedSend;
+    extern const StorageActionBlockType PartsMerge;
+    extern const StorageActionBlockType PartsFetch;
+    extern const StorageActionBlockType PartsSend;
+    extern const StorageActionBlockType DistributedSend;
 }
 
 static void executeCreateQuery(
@@ -250,6 +250,9 @@ static void loadSystemDatabaseImpl(ContextMutablePtr context, const String & dat
 {
     String path = context->getPath() + "metadata/" + database_name;
     String metadata_file = path + ".sql";
+    if (fs::exists(metadata_file + ".tmp"))
+        fs::remove(metadata_file + ".tmp");
+
     if (fs::exists(fs::path(metadata_file)))
     {
         /// 'has_force_restore_data_flag' is true, to not fail on loading query_log table, if it is corrupted.

src/Parsers/ASTAlterNamedCollectionQuery.cpp

@@ -15,6 +15,8 @@ ASTPtr ASTAlterNamedCollectionQuery::clone() const
 void ASTAlterNamedCollectionQuery::formatImpl(const IAST::FormatSettings & settings, IAST::FormatState &, IAST::FormatStateStacked) const
 {
     settings.ostr << (settings.hilite ? hilite_keyword : "") << "Alter NAMED COLLECTION ";
+    if (if_exists)
+        settings.ostr << "IF EXISTS ";
     settings.ostr << (settings.hilite ? hilite_identifier : "") << backQuoteIfNeed(collection_name) << (settings.hilite ? hilite_none : "");
     formatOnCluster(settings);
     if (!changes.empty())

src/Parsers/ASTCreateNamedCollectionQuery.cpp

@@ -18,6 +18,8 @@ ASTPtr ASTCreateNamedCollectionQuery::clone() const
 void ASTCreateNamedCollectionQuery::formatImpl(const IAST::FormatSettings & settings, IAST::FormatState &, IAST::FormatStateStacked) const
 {
     settings.ostr << (settings.hilite ? hilite_keyword : "") << "CREATE NAMED COLLECTION ";
+    if (if_not_exists)
+        settings.ostr << "IF NOT EXISTS ";
     settings.ostr << (settings.hilite ? hilite_identifier : "") << backQuoteIfNeed(collection_name) << (settings.hilite ? hilite_none : "");
 
     formatOnCluster(settings);

src/Parsers/ASTCreateNamedCollectionQuery.h

@@ -13,6 +13,7 @@ class ASTCreateNamedCollectionQuery : public IAST, public ASTQueryWithOnCluster
 public:
     std::string collection_name;
     SettingsChanges changes;
+    bool if_not_exists = false;
 
     String getID(char) const override { return "CreateNamedCollectionQuery"; }
 

src/Parsers/ASTDropNamedCollectionQuery.cpp

@@ -13,6 +13,8 @@ ASTPtr ASTDropNamedCollectionQuery::clone() const
 void ASTDropNamedCollectionQuery::formatImpl(const IAST::FormatSettings & settings, IAST::FormatState &, IAST::FormatStateStacked) const
 {
     settings.ostr << (settings.hilite ? hilite_keyword : "") << "DROP NAMED COLLECTION ";
+    if (if_exists)
+        settings.ostr << "IF EXISTS ";
     settings.ostr << (settings.hilite ? hilite_identifier : "") << backQuoteIfNeed(collection_name) << (settings.hilite ? hilite_none : "");
     formatOnCluster(settings);
 }

src/Parsers/ASTSystemQuery.cpp

@@ -162,7 +162,9 @@ void ASTSystemQuery::formatImpl(const FormatSettings & settings, FormatState &,
         || type == Type::STOP_REPLICATION_QUEUES
         || type == Type::START_REPLICATION_QUEUES
         || type == Type::STOP_DISTRIBUTED_SENDS
-        || type == Type::START_DISTRIBUTED_SENDS)
+        || type == Type::START_DISTRIBUTED_SENDS
+        || type == Type::STOP_PULLING_REPLICATION_LOG
+        || type == Type::START_PULLING_REPLICATION_LOG)
     {
         if (table)
             print_database_table();
@@ -210,7 +212,15 @@ void ASTSystemQuery::formatImpl(const FormatSettings & settings, FormatState &,
     else if (type == Type::DROP_FILESYSTEM_CACHE)
     {
         if (!filesystem_cache_name.empty())
+        {
             settings.ostr << (settings.hilite ? hilite_none : "") << " " << filesystem_cache_name;
+            if (!key_to_drop.empty())
+            {
+                settings.ostr << (settings.hilite ? hilite_none : "") << " KEY " << key_to_drop;
+                if (offset_to_drop.has_value())
+                    settings.ostr << (settings.hilite ? hilite_none : "") << " OFFSET " << offset_to_drop.value();
+            }
+        }
     }
     else if (type == Type::UNFREEZE)
     {

src/Parsers/ASTSystemQuery.h

@@ -80,6 +80,8 @@ public:
         UNFREEZE,
         ENABLE_FAILPOINT,
         DISABLE_FAILPOINT,
+        STOP_PULLING_REPLICATION_LOG,
+        START_PULLING_REPLICATION_LOG,
         END
     };
 
@@ -108,6 +110,8 @@ public:
     UInt64 seconds{};
 
     String filesystem_cache_name;
+    std::string key_to_drop;
+    std::optional<size_t> offset_to_drop;
 
     String backup_name;
 

src/Parsers/ParserAlterNamedCollectionQuery.cpp

@@ -13,8 +13,9 @@ bool ParserAlterNamedCollectionQuery::parseImpl(IParser::Pos & pos, ASTPtr & nod
 {
     ParserKeyword s_alter("ALTER");
     ParserKeyword s_collection("NAMED COLLECTION");
+    ParserKeyword s_if_exists("IF EXISTS");
+    ParserKeyword s_on("ON");
     ParserKeyword s_delete("DELETE");
-
     ParserIdentifier name_p;
     ParserSetQuery set_p;
     ParserToken s_comma(TokenType::Comma);
@@ -32,10 +33,13 @@ bool ParserAlterNamedCollectionQuery::parseImpl(IParser::Pos & pos, ASTPtr & nod
     if (!s_collection.ignore(pos, expected))
         return false;
 
+    if (s_if_exists.ignore(pos, expected))
+        if_exists = true;
+
     if (!name_p.parse(pos, collection_name, expected))
         return false;
 
-    if (ParserKeyword{"ON"}.ignore(pos, expected))
+    if (s_on.ignore(pos, expected))
     {
         if (!ASTQueryWithOnCluster::parse(pos, cluster_str, expected))
             return false;

src/Parsers/ParserCreateQuery.cpp

@@ -1421,15 +1421,17 @@ bool ParserCreateViewQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expec
 bool ParserCreateNamedCollectionQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
 {
     ParserKeyword s_create("CREATE");
-    ParserKeyword s_attach("ATTACH");
     ParserKeyword s_named_collection("NAMED COLLECTION");
+    ParserKeyword s_if_not_exists("IF NOT EXISTS");
+    ParserKeyword s_on("ON");
     ParserKeyword s_as("AS");
-
-    ParserToken s_comma(TokenType::Comma);
     ParserIdentifier name_p;
+    ParserToken s_comma(TokenType::Comma);
+
+    String cluster_str;
+    bool if_not_exists = false;
 
     ASTPtr collection_name;
-    String cluster_str;
 
     if (!s_create.ignore(pos, expected))
         return false;
@@ -1437,10 +1439,13 @@ bool ParserCreateNamedCollectionQuery::parseImpl(Pos & pos, ASTPtr & node, Expec
     if (!s_named_collection.ignore(pos, expected))
         return false;
 
+    if (s_if_not_exists.ignore(pos, expected))
+        if_not_exists = true;
+
     if (!name_p.parse(pos, collection_name, expected))
         return false;
 
-    if (ParserKeyword{"ON"}.ignore(pos, expected))
+    if (s_on.ignore(pos, expected))
     {
         if (!ASTQueryWithOnCluster::parse(pos, cluster_str, expected))
             return false;
@@ -1465,7 +1470,9 @@ bool ParserCreateNamedCollectionQuery::parseImpl(Pos & pos, ASTPtr & node, Expec
     auto query = std::make_shared<ASTCreateNamedCollectionQuery>();
 
     tryGetIdentifierNameInto(collection_name, query->collection_name);
+    query->if_not_exists = if_not_exists;
     query->changes = changes;
+    query->cluster = std::move(cluster_str);
 
     node = query;
     return true;

src/Parsers/ParserCreateQuery.h

@@ -548,6 +548,7 @@ protected:
     bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
 };
 
+/// CREATE NAMED COLLECTION name [ON CLUSTER cluster]
 class ParserCreateNamedCollectionQuery : public IParserBase
 {
 protected:

src/Parsers/ParserDropNamedCollectionQuery.cpp

@@ -12,6 +12,7 @@ bool ParserDropNamedCollectionQuery::parseImpl(IParser::Pos & pos, ASTPtr & node
     ParserKeyword s_drop("DROP");
     ParserKeyword s_collection("NAMED COLLECTION");
     ParserKeyword s_if_exists("IF EXISTS");
+    ParserKeyword s_on("ON");
     ParserIdentifier name_p;
 
     String cluster_str;
@@ -31,7 +32,7 @@ bool ParserDropNamedCollectionQuery::parseImpl(IParser::Pos & pos, ASTPtr & node
     if (!name_p.parse(pos, collection_name, expected))
         return false;
 
-    if (ParserKeyword{"ON"}.ignore(pos, expected))
+    if (s_on.ignore(pos, expected))
     {
         if (!ASTQueryWithOnCluster::parse(pos, cluster_str, expected))
             return false;

src/Parsers/ParserSystemQuery.cpp

@@ -379,6 +379,8 @@ bool ParserSystemQuery::parseImpl(IParser::Pos & pos, ASTPtr & node, Expected &
         case Type::START_REPLICATED_SENDS:
         case Type::STOP_REPLICATION_QUEUES:
         case Type::START_REPLICATION_QUEUES:
+        case Type::STOP_PULLING_REPLICATION_LOG:
+        case Type::START_PULLING_REPLICATION_LOG:
             if (!parseQueryWithOnCluster(res, pos, expected))
                 return false;
             parseDatabaseAndTableAsAST(pos, expected, res->database, res->table);
@@ -405,7 +407,15 @@ bool ParserSystemQuery::parseImpl(IParser::Pos & pos, ASTPtr & node, Expected &
             ParserLiteral path_parser;
             ASTPtr ast;
             if (path_parser.parse(pos, ast, expected))
+            {
                 res->filesystem_cache_name = ast->as<ASTLiteral>()->value.safeGet<String>();
+                if (ParserKeyword{"KEY"}.ignore(pos, expected) && ParserIdentifier().parse(pos, ast, expected))
+                {
+                    res->key_to_drop = ast->as<ASTIdentifier>()->name();
+                    if (ParserKeyword{"OFFSET"}.ignore(pos, expected) && ParserLiteral().parse(pos, ast, expected))
+                        res->offset_to_drop = ast->as<ASTLiteral>()->value.safeGet<UInt64>();
+                }
+            }
             if (!parseQueryWithOnCluster(res, pos, expected))
                 return false;
             break;

src/Processors/Transforms/WindowTransform.cpp

@@ -148,7 +148,7 @@ static int compareValuesWithOffsetFloat(const IColumn * _compared_column,
     const auto * reference_column = assert_cast<const ColumnType *>(
         _reference_column);
     const auto offset = _offset.get<typename ColumnType::ValueType>();
-    assert(offset >= 0);
+    chassert(offset >= 0);
 
     const auto compared_value_data = compared_column->getDataAt(compared_row);
     assert(compared_value_data.size == sizeof(typename ColumnType::ValueType));

src/Processors/Transforms/buildPushingToViewsChain.cpp

@@ -281,7 +281,7 @@ Chain buildPushingToViewsChain(
         /// and switch back to the original thread_status.
         auto * original_thread = current_thread;
         SCOPE_EXIT({ current_thread = original_thread; });
-
+        current_thread = nullptr;
         std::unique_ptr<ThreadStatus> view_thread_status_ptr = std::make_unique<ThreadStatus>(/*check_current_thread_on_destruction=*/ false);
         /// Copy of a ThreadStatus should be internal.
         view_thread_status_ptr->setInternalThread();

src/Storages/HDFS/ReadBufferFromHDFS.cpp

@@ -42,8 +42,7 @@ struct ReadBufferFromHDFS::ReadBufferFromHDFSImpl : public BufferWithOwnMemory<S
 
     off_t file_offset = 0;
     off_t read_until_position = 0;
-
-    std::optional<size_t> file_size;
+    off_t file_size;
 
     explicit ReadBufferFromHDFSImpl(
         const std::string & hdfs_uri_,
@@ -59,7 +58,6 @@ struct ReadBufferFromHDFS::ReadBufferFromHDFSImpl : public BufferWithOwnMemory<S
         , builder(createHDFSBuilder(hdfs_uri_, config_))
         , read_settings(read_settings_)
         , read_until_position(read_until_position_)
-        , file_size(file_size_)
     {
         fs = createHDFSFS(builder.get());
         fin = hdfsOpenFile(fs.get(), hdfs_file_path.c_str(), O_RDONLY, 0, 0, 0);
@@ -68,6 +66,22 @@ struct ReadBufferFromHDFS::ReadBufferFromHDFSImpl : public BufferWithOwnMemory<S
             throw Exception(ErrorCodes::CANNOT_OPEN_FILE,
                 "Unable to open HDFS file: {}. Error: {}",
                 hdfs_uri + hdfs_file_path, std::string(hdfsGetLastError()));
+
+        if (file_size_.has_value())
+        {
+            file_size = file_size_.value();
+        }
+        else
+        {
+            auto * file_info = hdfsGetPathInfo(fs.get(), hdfs_file_path.c_str());
+            if (!file_info)
+            {
+                hdfsCloseFile(fs.get(), fin);
+                throw Exception(ErrorCodes::UNKNOWN_FILE_SIZE, "Cannot find out file size for: {}", hdfs_file_path);
+            }
+            file_size = static_cast<size_t>(file_info->mSize);
+            hdfsFreeFileInfo(file_info, 1);
+        }
     }
 
     ~ReadBufferFromHDFSImpl() override
@@ -75,16 +89,9 @@ struct ReadBufferFromHDFS::ReadBufferFromHDFSImpl : public BufferWithOwnMemory<S
         hdfsCloseFile(fs.get(), fin);
     }
 
-    size_t getFileSize()
+    size_t getFileSize() const
     {
-        if (file_size)
-            return *file_size;
-
-        auto * file_info = hdfsGetPathInfo(fs.get(), hdfs_file_path.c_str());
-        if (!file_info)
-            throw Exception(ErrorCodes::UNKNOWN_FILE_SIZE, "Cannot find out file size for: {}", hdfs_file_path);
-        file_size = static_cast<size_t>(file_info->mSize);
-        return *file_size;
+        return file_size;
     }
 
     bool nextImpl() override
@@ -104,6 +111,10 @@ struct ReadBufferFromHDFS::ReadBufferFromHDFSImpl : public BufferWithOwnMemory<S
         {
             num_bytes_to_read = internal_buffer.size();
         }
+        if (file_size != 0 && file_offset >= file_size)
+        {
+            return false;
+        }
 
         ResourceGuard rlock(read_settings.resource_link, num_bytes_to_read);
         int bytes_read;