Revert "CC"

This reverts commit ee194928d2.

programs/odbc-bridge/SchemaAllowedHandler.h

@@ -10,6 +10,8 @@
 namespace DB
 {
 
+class Context;
+
 /// This handler establishes connection to database, and retrieves whether schema is allowed.
 class SchemaAllowedHandler : public HTTPRequestHandler, WithContext
 {

src/AggregateFunctions/AggregateFunctionFactory.h

@@ -15,6 +15,7 @@
 namespace DB
 {
 
+class Context;
 class IDataType;
 
 using DataTypePtr = std::shared_ptr<const IDataType>;

src/Common/Config/ConfigReloader.h

@@ -17,6 +17,8 @@ namespace Poco { class Logger; }
 namespace DB
 {
 
+class Context;
+
 /** Every two seconds checks configuration files for update.
   * If configuration is changed, then config will be reloaded by ConfigProcessor
   *  and the reloaded config will be applied via Updater functor.

src/DataStreams/AddingDefaultBlockOutputStream.h

@@ -11,6 +11,8 @@ namespace DB
 class ExpressionActions;
 using ExpressionActionsPtr = std::shared_ptr<ExpressionActions>;
 
+class Context;
+
 /** This stream adds three types of columns into block
   * 1. Columns, that are missed inside request, but present in table without defaults (missed columns)
   * 2. Columns, that are missed inside request, but present in table with defaults (columns with default values)

src/DataStreams/RemoteBlockInputStream.h

@@ -15,6 +15,8 @@
 namespace DB
 {
 
+class Context;
+
 /** This class allows one to launch queries on remote replicas of one shard and get results
   */
 class RemoteBlockInputStream : public IBlockInputStream

src/DataStreams/RemoteQueryExecutor.h

@@ -13,6 +13,8 @@
 namespace DB
 {
 
+class Context;
+
 class Throttler;
 using ThrottlerPtr = std::shared_ptr<Throttler>;
 

src/Databases/DatabaseLazy.h

@@ -9,6 +9,7 @@ namespace DB
 
 
 class DatabaseLazyIterator;
+class Context;
 
 /** Lazy engine of databases.
   * Works like DatabaseOrdinary, but stores in memory only cache.

src/Databases/DatabaseOnDisk.h

@@ -10,6 +10,8 @@
 namespace DB
 {
 
+class Context;
+
 std::pair<String, StoragePtr> createTableFromAST(
     ASTCreateQuery ast_create_query,
     const String & database_name,

src/Databases/DatabaseWithDictionaries.h

@@ -6,6 +6,7 @@
 namespace DB
 {
 
+class Context;
 class ExternalDictionariesLoader;
 
 

src/Databases/DatabasesCommon.h

@@ -13,6 +13,8 @@
 namespace DB
 {
 
+class Context;
+
 /// A base class for databases that manage their own list of tables.
 class DatabaseWithOwnTablesBase : public IDatabase, protected WithContext
 {

src/Databases/MySQL/DatabaseConnectionMySQL.h

@@ -23,6 +23,8 @@
 namespace DB
 {
 
+class Context;
+
 enum class MySQLDataTypesSupport;
 
 /** Real-time access to table list and table structure from remote MySQL

src/Databases/PostgreSQL/DatabasePostgreSQL.h

@@ -15,6 +15,8 @@
 namespace DB
 {
 
+class Context;
+
 
 /** Real-time access to table list and table structure from remote PostgreSQL.
  *  All tables are created after pull-out structure from remote PostgreSQL.

src/Formats/FormatSchemaInfo.h

@@ -4,6 +4,7 @@
 
 namespace DB
 {
+class Context;
 
 /// Extracts information about where the format schema file is from passed context and keep it.
 class FormatSchemaInfo

src/Functions/array/arrayScalarProduct.h

@@ -10,6 +10,8 @@
 namespace DB
 {
 
+class Context;
+
 namespace ErrorCodes
 {
     extern const int ILLEGAL_COLUMN;

src/IO/S3/PocoHTTPClient.h

@@ -18,6 +18,11 @@ namespace Aws::Http::Standard
 class StandardHttpResponse;
 }
 
+namespace DB
+{
+class Context;
+}
+
 namespace DB::S3
 {
 class ClientFactory;

src/Interpreters/InterpreterDropQuery.h

@@ -8,7 +8,7 @@
 
 namespace DB
 {
-
+class Context;
 using DatabaseAndTable = std::pair<DatabasePtr, StoragePtr>;
 class AccessRightsElements;
 

src/Interpreters/InterpreterFactory.h

@@ -9,6 +9,8 @@
 namespace DB
 {
 
+class Context;
+
 class InterpreterFactory
 {
 public:

src/Interpreters/InterpreterSelectQuery.h

@@ -22,6 +22,7 @@ namespace DB
 
 struct SubqueryForSet;
 class InterpreterSelectWithUnionQuery;
+class Context;
 class QueryPlan;
 
 struct TreeRewriterResult;

src/Interpreters/InterpreterShowCreateAccessEntityQuery.h

@@ -8,6 +8,7 @@
 namespace DB
 {
 class AccessControlManager;
+class Context;
 class AccessRightsElements;
 struct IAccessEntity;
 using AccessEntityPtr = std::shared_ptr<const IAccessEntity>;

src/Interpreters/InterpreterShowPrivilegesQuery.h

@@ -6,6 +6,7 @@
 
 namespace DB
 {
+class Context;
 
 class InterpreterShowPrivilegesQuery : public IInterpreter
 {

src/Interpreters/InterpreterShowTablesQuery.h

@@ -7,6 +7,9 @@
 namespace DB
 {
 
+class Context;
+
+
 /** Return a list of tables or databases meets specified conditions.
   * Interprets a query through replacing it to SELECT query from system.tables or system.databases.
   */

src/Interpreters/InterpreterSystemQuery.h

@@ -13,6 +13,7 @@ namespace Poco { class Logger; }
 namespace DB
 {
 
+class Context;
 class AccessRightsElements;
 class ASTSystemQuery;
 

src/Interpreters/JoinToSubqueryTransformVisitor.h

@@ -8,6 +8,7 @@ namespace DB
 {
 
 class ASTSelectQuery;
+class Context;
 
 /// AST transformer. It replaces multiple joins to (subselect + join) track.
 /// 'select * from t1 join t2 on ... join t3 on ... join t4 on ...' would be rewritten with

src/Interpreters/MutationsInterpreter.h

@@ -12,6 +12,7 @@
 namespace DB
 {
 
+class Context;
 class QueryPlan;
 
 class QueryPipeline;

src/Interpreters/QueryNormalizer.h

@@ -12,6 +12,7 @@ namespace DB
 class ASTSelectQuery;
 class ASTIdentifier;
 struct ASTTablesInSelectQueryElement;
+class Context;
 
 
 class QueryNormalizer

src/Interpreters/Set.h

@@ -16,6 +16,7 @@ namespace DB
 
 struct Range;
 
+class Context;
 class IFunctionBase;
 using FunctionBasePtr = std::shared_ptr<IFunctionBase>;
 

src/Interpreters/StorageID.h

@@ -26,6 +26,7 @@ static constexpr char const * TABLE_WITH_UUID_NAME_PLACEHOLDER = "_";
 
 class ASTQueryWithTableAndOutput;
 class ASTIdentifier;
+class Context;
 
 // TODO(ilezhankin): refactor and merge |ASTTableIdentifier|
 struct StorageID

src/Interpreters/TableJoin.h

@@ -18,6 +18,7 @@
 namespace DB
 {
 
+class Context;
 class ASTSelectQuery;
 struct DatabaseAndTableWithAlias;
 class Block;

src/Processors/Formats/Impl/ParallelParsingInputFormat.h

@@ -21,6 +21,8 @@ namespace ErrorCodes
     extern const int LOGICAL_ERROR;
 }
 
+class Context;
+
 /**
  * ORDER-PRESERVING parallel parsing of data formats.
  * It splits original data into chunks. Then each chunk is parsed by different thread.

src/Processors/Formats/Impl/PrettyBlockOutputFormat.h

@@ -9,6 +9,7 @@ namespace DB
 {
 
 class WriteBuffer;
+class Context;
 
 
 /** Prints the result in the form of beautiful tables.

src/Processors/Formats/Impl/VerticalRowOutputFormat.h

@@ -9,6 +9,7 @@ namespace DB
 {
 
 class WriteBuffer;
+class Context;
 
 
 /** Stream to output data in format "each value in separate row".

src/Server/HTTP/HTTPServer.h

@@ -11,6 +11,8 @@
 namespace DB
 {
 
+class Context;
+
 class HTTPServer : public Poco::Net::TCPServer
 {
 public:

src/Server/ReplicasStatusHandler.h

@@ -5,6 +5,7 @@
 namespace DB
 {
 
+class Context;
 class IServer;
 
 /// Replies "Ok.\n" if all replicas on this server don't lag too much. Otherwise output lag information.

src/Storages/AlterCommands.h

@@ -157,6 +157,8 @@ struct AlterCommand
 /// Return string representation of AlterCommand::Type
 String alterTypeToString(const AlterCommand::Type type);
 
+class Context;
+
 /// Vector of AlterCommand with several additional functions
 class AlterCommands : public std::vector<AlterCommand>
 {

src/Storages/Distributed/DistributedBlockOutputStream.h

@@ -22,6 +22,7 @@ namespace Poco
 namespace DB
 {
 
+class Context;
 class StorageDistributed;
 
 /** If insert_sync_ is true, the write is synchronous. Uses insert_timeout_ if it is not zero.

src/Storages/MergeTree/KeyCondition.h

@@ -13,6 +13,7 @@
 namespace DB
 {
 
+class Context;
 class IFunction;
 using FunctionBasePtr = std::shared_ptr<IFunctionBase>;
 class ExpressionActions;

src/Storages/MergeTree/MergeTreeData.h

@@ -38,6 +38,7 @@ namespace DB
 class AlterCommands;
 class MergeTreePartsMover;
 class MutationCommands;
+class Context;
 struct JobAndPool;
 
 /// Auxiliary struct holding information about the future merged or mutated part.

src/Storages/MutationCommands.h

@@ -12,6 +12,7 @@
 namespace DB
 {
 
+class Context;
 class WriteBuffer;
 class ReadBuffer;
 

src/Storages/ReadInOrderOptimizer.h

@@ -12,6 +12,7 @@ namespace DB
  *   common prefix, which is needed for
  *   performing reading in order of PK.
  */
+class Context;
 
 class ReadInOrderOptimizer
 {

src/Storages/RocksDB/StorageEmbeddedRocksDB.h

@@ -14,6 +14,8 @@ namespace rocksdb
 namespace DB
 {
 
+class Context;
+
 class StorageEmbeddedRocksDB final : public ext::shared_ptr_helper<StorageEmbeddedRocksDB>, public IStorage
 {
     friend struct ext::shared_ptr_helper<StorageEmbeddedRocksDB>;

src/Storages/StorageDistributed.h

@@ -19,6 +19,7 @@ namespace DB
 {
 
 struct Settings;
+class Context;
 
 class IVolume;
 using VolumePtr = std::shared_ptr<IVolume>;

src/Storages/StorageFactory.h

@@ -13,6 +13,7 @@
 namespace DB
 {
 
+class Context;
 class ASTCreateQuery;
 class ASTStorage;
 struct StorageID;

src/Storages/StorageS3Cluster.h

@@ -18,6 +18,8 @@
 namespace DB
 {
 
+class Context;
+
 struct ClientAuthentificationBuilder
 {
     String access_key_id;

src/Storages/System/IStorageSystemOneBlock.h

@@ -9,6 +9,8 @@
 namespace DB
 {
 
+class Context;
+
 
 /** Base class for system tables whose all columns have String type.
   */

src/Storages/System/StorageSystemAsynchronousMetrics.h

@@ -7,6 +7,7 @@ namespace DB
 {
 
 class AsynchronousMetrics;
+class Context;
 
 
 /** Implements system table asynchronous_metrics, which allows to get values of periodically (asynchronously) updated metrics.

src/Storages/System/StorageSystemBuildOptions.h

@@ -7,6 +7,9 @@
 namespace DB
 {
 
+class Context;
+
+
 /** System table "build_options" with many params used for clickhouse building
   */
 class StorageSystemBuildOptions final : public ext::shared_ptr_helper<StorageSystemBuildOptions>, public IStorageSystemOneBlock<StorageSystemBuildOptions>

src/Storages/System/StorageSystemClusters.h

@@ -9,6 +9,7 @@
 namespace DB
 {
 
+class Context;
 class Cluster;
 
 /** Implements system table 'clusters'

src/Storages/System/StorageSystemColumns.h

@@ -7,6 +7,8 @@
 namespace DB
 {
 
+class Context;
+
 /** Implements system table 'columns', that allows to get information about columns for every table.
   */
 class StorageSystemColumns final : public ext::shared_ptr_helper<StorageSystemColumns>, public IStorage

src/Storages/System/StorageSystemContributors.h

@@ -6,6 +6,8 @@
 
 namespace DB
 {
+class Context;
+
 
 /** System table "contributors" with list of clickhouse contributors
   */

src/Storages/System/StorageSystemCurrentRoles.h

@@ -6,6 +6,7 @@
 
 namespace DB
 {
+class Context;
 
 /// Implements `current_roles` system table, which allows you to get information about current roles.
 class StorageSystemCurrentRoles final : public ext::shared_ptr_helper<StorageSystemCurrentRoles>, public IStorageSystemOneBlock<StorageSystemCurrentRoles>

src/Storages/System/StorageSystemDDLWorkerQueue.h

@@ -10,7 +10,7 @@
 
 namespace DB
 {
-
+class Context;
 
 
 /** System table "distributed_ddl_queue" with list of queries that are currently in the DDL worker queue.

src/Storages/System/StorageSystemDatabases.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements `databases` system table, which allows you to get information about all databases.

src/Storages/System/StorageSystemDictionaries.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 class StorageSystemDictionaries final : public ext::shared_ptr_helper<StorageSystemDictionaries>, public IStorageSystemOneBlock<StorageSystemDictionaries>

src/Storages/System/StorageSystemDisks.h

@@ -9,7 +9,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements the system table `disks`, which allows you to get information about all disks.

src/Storages/System/StorageSystemDistributionQueue.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements the `distribution_queue` system table, which allows you to view the INSERT queues for the Distributed tables.

src/Storages/System/StorageSystemEnabledRoles.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `enabled_roles` system table, which allows you to get information about enabled roles.
 class StorageSystemEnabledRoles final : public ext::shared_ptr_helper<StorageSystemEnabledRoles>, public IStorageSystemOneBlock<StorageSystemEnabledRoles>

src/Storages/System/StorageSystemErrors.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /**

src/Storages/System/StorageSystemEvents.h

@@ -6,7 +6,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements `events` system table, which allows you to obtain information for profiling.

src/Storages/System/StorageSystemFunctions.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements `functions`system table, which allows you to get a list

src/Storages/System/StorageSystemGrants.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `grants` system table, which allows you to get information about grants.
 class StorageSystemGrants final : public ext::shared_ptr_helper<StorageSystemGrants>, public IStorageSystemOneBlock<StorageSystemGrants>

src/Storages/System/StorageSystemLicenses.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 
 /** System table "licenses" with list of licenses of 3rd party libraries

src/Storages/System/StorageSystemMacros.h

@@ -8,7 +8,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Information about macros for introspection.

src/Storages/System/StorageSystemMergeTreeSettings.h

@@ -8,7 +8,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** implements system table "merge_tree_settings" and "replicated_merge_tree_settings",

src/Storages/System/StorageSystemMerges.h

@@ -10,7 +10,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 class StorageSystemMerges final : public ext::shared_ptr_helper<StorageSystemMerges>, public IStorageSystemOneBlock<StorageSystemMerges>

src/Storages/System/StorageSystemMetrics.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements `metrics` system table, which provides information about the operation of the server.

src/Storages/System/StorageSystemModels.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 class StorageSystemModels final : public ext::shared_ptr_helper<StorageSystemModels>, public IStorageSystemOneBlock<StorageSystemModels>

src/Storages/System/StorageSystemMutations.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /// Implements the `mutations` system table, which provides information about the status of mutations

src/Storages/System/StorageSystemNumbers.h

@@ -8,7 +8,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements a table engine for the system table "numbers".

src/Storages/System/StorageSystemOne.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements storage for the system table One.

src/Storages/System/StorageSystemParts.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements system table 'parts' which allows to get information about data parts for tables of MergeTree family.

src/Storages/System/StorageSystemPartsBase.h

@@ -9,7 +9,7 @@
 namespace DB
 {
 
-
+class Context;
 
 struct StoragesInfo
 {

src/Storages/System/StorageSystemPartsColumns.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements system table 'parts_columns' which allows to get information about

src/Storages/System/StorageSystemPrivileges.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `privileges` system table, which allows you to get information about access types.
 class StorageSystemPrivileges final : public ext::shared_ptr_helper<StorageSystemPrivileges>, public IStorageSystemOneBlock<StorageSystemPrivileges>

src/Storages/System/StorageSystemProcesses.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements `processes` system table, which allows you to get information about the queries that are currently executing.

src/Storages/System/StorageSystemQuotaLimits.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `quota_limits` system table, which allows you to get information about the limits set for quotas.
 class StorageSystemQuotaLimits final : public ext::shared_ptr_helper<StorageSystemQuotaLimits>, public IStorageSystemOneBlock<StorageSystemQuotaLimits>

src/Storages/System/StorageSystemQuotaUsage.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 struct QuotaUsage;
 
 

src/Storages/System/StorageSystemQuotas.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /** Implements the `quotas` system tables, which allows you to get information about quotas.
   */

src/Storages/System/StorageSystemQuotasUsage.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /** Implements the `quotas_usage` system table, which allows you to get information about
   * how all users use the quotas.

src/Storages/System/StorageSystemReplicas.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements `replicas` system table, which provides information about the status of the replicated tables.

src/Storages/System/StorageSystemReplicatedFetches.h

@@ -8,7 +8,7 @@
 namespace DB
 {
 
-
+class Context;
 
 /// system.replicated_fetches table. Takes data from context.getReplicatedFetchList()
 class StorageSystemReplicatedFetches final : public ext::shared_ptr_helper<StorageSystemReplicatedFetches>, public IStorageSystemOneBlock<StorageSystemReplicatedFetches >

src/Storages/System/StorageSystemReplicationQueue.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements the `replication_queue` system table, which allows you to view the replication queues for the replicated tables.

src/Storages/System/StorageSystemRoleGrants.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `role_grants` system table, which allows you to get information about granted roles.
 class StorageSystemRoleGrants final : public ext::shared_ptr_helper<StorageSystemRoleGrants>, public IStorageSystemOneBlock<StorageSystemRoleGrants>

src/Storages/System/StorageSystemRoles.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `roles` system table, which allows you to get information about roles.
 class StorageSystemRoles final : public ext::shared_ptr_helper<StorageSystemRoles>, public IStorageSystemOneBlock<StorageSystemRoles>

src/Storages/System/StorageSystemRowPolicies.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /// Implements `row_policies` system table, which allows you to get information about row policies.

src/Storages/System/StorageSystemSettings.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** implements system table "settings", which allows to get information about the current settings.

src/Storages/System/StorageSystemSettingsProfileElements.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `settings_profile_elements` system table, which allows you to get information about elements of settings profiles.
 class StorageSystemSettingsProfileElements final : public ext::shared_ptr_helper<StorageSystemSettingsProfileElements>, public IStorageSystemOneBlock<StorageSystemSettingsProfileElements>

src/Storages/System/StorageSystemSettingsProfiles.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `settings_profiles` system table, which allows you to get information about profiles.
 class StorageSystemSettingsProfiles final : public ext::shared_ptr_helper<StorageSystemSettingsProfiles>, public IStorageSystemOneBlock<StorageSystemSettingsProfiles>

src/Storages/System/StorageSystemStackTrace.h

@@ -14,7 +14,7 @@ class Logger;
 namespace DB
 {
 
-
+class Context;
 
 
 /// Allows to introspect stack trace of all server threads.

src/Storages/System/StorageSystemStoragePolicies.h

@@ -9,7 +9,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements the system table `storage`, which allows you to get information about all disks.

src/Storages/System/StorageSystemTables.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements the system table `tables`, which allows you to get information about all tables.

src/Storages/System/StorageSystemTimeZones.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 
 /** System table "time_zones" with list of timezones pulled from /contrib/cctz/testdata/zoneinfo

src/Storages/System/StorageSystemUserDirectories.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `users_directories` system table, which allows you to get information about user directories.
 class StorageSystemUserDirectories final : public ext::shared_ptr_helper<StorageSystemUserDirectories>, public IStorageSystemOneBlock<StorageSystemUserDirectories>

src/Storages/System/StorageSystemUsers.h

@@ -6,7 +6,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /// Implements `users` system table, which allows you to get information about users.
 class StorageSystemUsers final : public ext::shared_ptr_helper<StorageSystemUsers>, public IStorageSystemOneBlock<StorageSystemUsers>

src/Storages/System/StorageSystemZooKeeper.h

@@ -7,7 +7,7 @@
 namespace DB
 {
 
-
+class Context;
 
 
 /** Implements `zookeeper` system table, which allows you to view the data in ZooKeeper for debugging purposes.

src/Storages/System/attachSystemTables.h

@@ -6,6 +6,7 @@
 namespace DB
 {
 
+class Context;
 class AsynchronousMetrics;
 class IDatabase;
 

src/Storages/getStructureOfRemoteTable.h

@@ -8,7 +8,7 @@
 
 namespace DB
 {
-
+class Context;
 struct StorageID;
 
 /// Find the names and types of the table columns on any server in the cluster.

src/TableFunctions/ITableFunction.h

@@ -11,7 +11,7 @@
 namespace DB
 {
 
-
+class Context;
 
 /** Interface for table functions.
   *

src/TableFunctions/ITableFunctionFileLike.h

@@ -5,7 +5,7 @@
 namespace DB
 {
 class ColumnsDescription;
-
+class Context;
 
 /*
  * function(source, format, structure) - creates a temporary storage from formatted source

src/TableFunctions/TableFunctionDictionary.h

@@ -4,7 +4,7 @@
 
 namespace DB
 {
-
+class Context;
 
 /* file(path, format, structure) - creates a temporary storage from file
  *

src/TableFunctions/TableFunctionFactory.h

@@ -15,7 +15,7 @@
 namespace DB
 {
 
-
+class Context;
 
 using TableFunctionCreator = std::function<TableFunctionPtr()>;