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Merge pull request #64534 from ClickHouse/evillique-patch-1
Unify SYSTEM query docs
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@ -206,6 +206,32 @@ Enables background data distribution when inserting data into distributed tables
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SYSTEM START DISTRIBUTED SENDS [db.]<distributed_table_name> [ON CLUSTER cluster_name]
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```
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### STOP LISTEN
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Closes the socket and gracefully terminates the existing connections to the server on the specified port with the specified protocol.
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However, if the corresponding protocol settings were not specified in the clickhouse-server configuration, this command will have no effect.
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```sql
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SYSTEM STOP LISTEN [ON CLUSTER cluster_name] [QUERIES ALL | QUERIES DEFAULT | QUERIES CUSTOM | TCP | TCP WITH PROXY | TCP SECURE | HTTP | HTTPS | MYSQL | GRPC | POSTGRESQL | PROMETHEUS | CUSTOM 'protocol']
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```
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- If `CUSTOM 'protocol'` modifier is specified, the custom protocol with the specified name defined in the protocols section of the server configuration will be stopped.
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- If `QUERIES ALL [EXCEPT .. [,..]]` modifier is specified, all protocols are stopped, unless specified with `EXCEPT` clause.
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- If `QUERIES DEFAULT [EXCEPT .. [,..]]` modifier is specified, all default protocols are stopped, unless specified with `EXCEPT` clause.
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- If `QUERIES CUSTOM [EXCEPT .. [,..]]` modifier is specified, all custom protocols are stopped, unless specified with `EXCEPT` clause.
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### START LISTEN
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Allows new connections to be established on the specified protocols.
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However, if the server on the specified port and protocol was not stopped using the SYSTEM STOP LISTEN command, this command will have no effect.
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```sql
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SYSTEM START LISTEN [ON CLUSTER cluster_name] [QUERIES ALL | QUERIES DEFAULT | QUERIES CUSTOM | TCP | TCP WITH PROXY | TCP SECURE | HTTP | HTTPS | MYSQL | GRPC | POSTGRESQL | PROMETHEUS | CUSTOM 'protocol']
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```
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## Managing MergeTree Tables
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ClickHouse can manage background processes in [MergeTree](../../engines/table-engines/mergetree-family/mergetree.md) tables.
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@ -463,30 +489,16 @@ Will do sync syscall.
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SYSTEM SYNC FILE CACHE [ON CLUSTER cluster_name]
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```
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### UNLOAD PRIMARY KEY
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## SYSTEM STOP LISTEN
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Closes the socket and gracefully terminates the existing connections to the server on the specified port with the specified protocol.
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However, if the corresponding protocol settings were not specified in the clickhouse-server configuration, this command will have no effect.
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Unload the primary keys for the given table or for all tables.
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```sql
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SYSTEM STOP LISTEN [ON CLUSTER cluster_name] [QUERIES ALL | QUERIES DEFAULT | QUERIES CUSTOM | TCP | TCP WITH PROXY | TCP SECURE | HTTP | HTTPS | MYSQL | GRPC | POSTGRESQL | PROMETHEUS | CUSTOM 'protocol']
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SYSTEM UNLOAD PRIMARY KEY [db.]name
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```
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- If `CUSTOM 'protocol'` modifier is specified, the custom protocol with the specified name defined in the protocols section of the server configuration will be stopped.
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- If `QUERIES ALL [EXCEPT .. [,..]]` modifier is specified, all protocols are stopped, unless specified with `EXCEPT` clause.
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- If `QUERIES DEFAULT [EXCEPT .. [,..]]` modifier is specified, all default protocols are stopped, unless specified with `EXCEPT` clause.
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- If `QUERIES CUSTOM [EXCEPT .. [,..]]` modifier is specified, all custom protocols are stopped, unless specified with `EXCEPT` clause.
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## SYSTEM START LISTEN
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Allows new connections to be established on the specified protocols.
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However, if the server on the specified port and protocol was not stopped using the SYSTEM STOP LISTEN command, this command will have no effect.
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```sql
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SYSTEM START LISTEN [ON CLUSTER cluster_name] [QUERIES ALL | QUERIES DEFAULT | QUERIES CUSTOM | TCP | TCP WITH PROXY | TCP SECURE | HTTP | HTTPS | MYSQL | GRPC | POSTGRESQL | PROMETHEUS | CUSTOM 'protocol']
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SYSTEM UNLOAD PRIMARY KEY
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```
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## Managing Refreshable Materialized Views {#refreshable-materialized-views}
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@ -495,7 +507,7 @@ Commands to control background tasks performed by [Refreshable Materialized View
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Keep an eye on [`system.view_refreshes`](../../operations/system-tables/view_refreshes.md) while using them.
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### SYSTEM REFRESH VIEW
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### REFRESH VIEW
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Trigger an immediate out-of-schedule refresh of a given view.
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@ -503,7 +515,7 @@ Trigger an immediate out-of-schedule refresh of a given view.
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SYSTEM REFRESH VIEW [db.]name
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```
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### SYSTEM STOP VIEW, SYSTEM STOP VIEWS
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### STOP VIEW, STOP VIEWS
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Disable periodic refreshing of the given view or all refreshable views. If a refresh is in progress, cancel it too.
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@ -514,7 +526,7 @@ SYSTEM STOP VIEW [db.]name
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SYSTEM STOP VIEWS
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```
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### SYSTEM START VIEW, SYSTEM START VIEWS
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### START VIEW, START VIEWS
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Enable periodic refreshing for the given view or all refreshable views. No immediate refresh is triggered.
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@ -525,22 +537,10 @@ SYSTEM START VIEW [db.]name
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SYSTEM START VIEWS
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```
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### SYSTEM CANCEL VIEW
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### CANCEL VIEW
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If there's a refresh in progress for the given view, interrupt and cancel it. Otherwise do nothing.
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```sql
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SYSTEM CANCEL VIEW [db.]name
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```
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### SYSTEM UNLOAD PRIMARY KEY
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Unload the primary keys for the given table or for all tables.
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```sql
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SYSTEM UNLOAD PRIMARY KEY [db.]name
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```
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```sql
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SYSTEM UNLOAD PRIMARY KEY
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```
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