[docs] Add syntax documentation for logical replication

docs/content/preview/api/ysql/syntax_resources/ysql_grammar.ebnf

@@ -266,6 +266,18 @@ alter_materialized_view_action =
   ( 'RENAME' 'TO' new_name
     | 'SET' 'TABLESPACE' tablespace_name ) ;
 
+(* 'ALTER' 'PUBLICATION' *)
+alter_publication = 
+  'ALTER' 'PUBLICATION' publication_name 
+  [ alter_publication_action { ',' alter_publication_action } ] ;
+
+alter_publication_action =
+  'ADD' 'TABLE' table_name { ',' table_name } |
+  'SET' 'TABLE' table_name { ',' table_name } |
+  'DROP' 'TABLE' table_name { ',' table_name } |
+  'RENAME' 'TO' publication_name |
+  'OWNER' 'TO' new_owner ;
+
 (* 'ALTER' 'SCHEMA' *)
 alter_schema = 'ALTER' 'SCHEMA' schema_name (
                 'RENAME' 'TO' new_name |
@@ -630,6 +642,20 @@ create_procedure =  'CREATE' [ 'OR' 'REPLACE' ] 'PROCEDURE'
 (* ( 'TRANSFORM' ( 'FOR' 'TYPE' type_name ) { ',' ( 'FOR' 'TYPE' type_name ) } bllewell: n/a except with implementation langauges like C *)
 unalterable_proc_attribute = 'LANGUAGE' lang_name | 'AS' subprogram_implementation ;
 
+(* 'CREATE' 'PUBLICATION' *)
+create_publication = 
+  'CREATE' 'PUBLICATION' publication_name 
+  [ 'FOR' publication_for_option ] ;
+
+publication_for_option = 
+  'TABLE' table_name { ',' table_name } |
+  'ALL' 'TABLES' ;
+
+(* 'CREATE_REPLICATION_SLOT' *)
+create_replication_slot = 
+  'CREATE_REPLICATION_SLOT' slot_name 'LOGICAL' output_plugin 
+  [ 'NOEXPORT_SNAPSHOT' | 'USE_SNAPSHOT' ] ;
+
 (* 'CREATE' 'RULE' *)
 create_rule = 'CREATE' [ 'OR' 'REPLACE' ] 'RULE' rule_name 'AS' 'ON' rule_event 'TO' table_name \
               [ 'WHERE' boolean_expression ]
@@ -960,6 +986,13 @@ drop_procedure = 'DROP' 'PROCEDURE' [ 'IF' 'EXISTS' ] \
                   { ',' ( subprogram_name '(' [ subprogram_signature ] ')' ) }
                   [ 'CASCADE' | 'RESTRICT' ] ;
 
+(* 'DROP' 'PUBLICATION' *)
+drop_publication = 'DROP' 'PUBLICATION' [ 'IF' 'EXISTS' ] publication_name
+                   [ 'CASCADE' | 'RESTRICT' ] ;
+
+(* DROP_REPLICATION_SLOT *)
+drop_replication_slot = DROP_REPLICATION_SLOT slot_name ;
+
 (* 'DROP' 'ROLE' *)
 drop_role = 'DROP' 'ROLE' [ 'IF' 'EXISTS' ] role_name { ',' role_name } ;
 
@@ -1256,6 +1289,14 @@ show_stmt = 'SHOW' ( run_time_parameter | 'ALL' ) ;
 (* 'SHOW' 'TRANSACTION' *)
 show_transaction = 'SHOW' 'TRANSACTION' 'ISOLATION' 'LEVEL' ;
 
+(* 'START_REPLICATION' *)
+start_replication = 
+  'START_REPLICATION' 'SLOT' slot_name 'LOGICAL' log_sequence_number 
+    [ '(' start_replication_option { ',' start_replication_option } ')' ] ;
+
+start_replication_option = 
+  start_replication_option_name [ start_replication_option_value ] ;
+
 (* 'START' 'TRANSACTION' *)
 start_transaction = 'START' 'TRANSACTION' { transaction_mode } ;
 
@@ -1353,7 +1394,13 @@ having_clause = 'HAVING' ( boolean_expression ) ;
 qualified_name = name { '.' name } ;
 role_name = name ;
 database_name = name ;
+log_sequence_number = text_literal ; (* Format: 'XXX/XXX' representing a log sequence number *)
+output_plugin = name ;
+publication_name = name ;
 schema_name = name ;
+slot_name = name ;
+start_replication_option_name = text_literal ;
+start_replication_option_value = text_literal ;
 table_name = qualified_name ;
 cte_name = name ;
 column_name = name ;

docs/content/preview/api/ysql/the-sql-language/statements/_index.md

@@ -27,6 +27,7 @@ The YSQL statements are compatible with the SQL dialect that PostgreSQL supports
 | [`ALTER FOREIGN TABLE`](ddl_alter_foreign_table) | Change foreign table definition |
 | [`ALTER INDEX`](ddl_alter_index) | Change index definition |
 | [`ALTER MATERIALIZED VIEW`](ddl_alter_matview) | Change materialized view definition |
+| [`ALTER PUBLICATION`](ddl_alter_publication) | Change publication definition |
 | [`ALTER SEQUENCE`](ddl_alter_sequence) | Change sequence definition |
 | [`ALTER SERVER`](ddl_alter_server) | Change foreign server definition |
 | [`ALTER SCHEMA`](ddl_alter_schema) | Change schema definition |
@@ -45,6 +46,7 @@ The YSQL statements are compatible with the SQL dialect that PostgreSQL supports
 | [`CREATE OPERATOR`](ddl_create_operator) | Create an operator |
 | [`CREATE OPERATOR CLASS`](ddl_create_operator_class) | Create an operator class |
 | [`CREATE PROCEDURE`](ddl_create_procedure) | Create a procedure |
+| [`CREATE PUBLICATION`](ddl_create_publication) | Create a publication |
 | [`CREATE RULE`](ddl_create_rule) | Create a rule |
 | [`CREATE SCHEMA`](ddl_create_schema) | Create a schema (namespace) |
 | [`CREATE SEQUENCE`](ddl_create_sequence) | Create a sequence generator |
@@ -69,6 +71,7 @@ The YSQL statements are compatible with the SQL dialect that PostgreSQL supports
 | [`DROP OPERATOR`](ddl_drop_operator) | Delete an operator |
 | [`DROP OPERATOR CLASS`](ddl_drop_operator_class) | Delete an operator class |
 | [`DROP PROCEDURE`](ddl_drop_procedure) | Delete a procedure |
+| [`DROP PUBLICATION`](ddl_drop_publication) | Delete a publication |
 | [`DROP RULE`](ddl_drop_rule) | Delete a rule |
 | [`DROP SCHEMA`](ddl_drop_schema) | Delete a schema from the system |
 | [`DROP SEQUENCE`](ddl_drop_sequence) | Delete a sequence generator |
@@ -153,6 +156,14 @@ The YSQL statements are compatible with the SQL dialect that PostgreSQL supports
 | [`EXPLAIN`](perf_explain) | Explain an execution plan for a statement |
 | [`PREPARE`](perf_prepare) | Prepare a statement |
 
+## Streaming replication protocol statements
+
+| Statement | Description |
+| :-------- | :---------- |
+| [`CREATE_REPLICATION_SLOT`](streaming_create_repl_slot) | Create a replication slot |
+| [`DROP_REPLICATION_SLOT`](streaming_drop_repl_slot) | Drop a replication slot |
+| [`START_REPLICATION`](streaming_start_replication) | Start streaming from a replication slot |
+
 ## Other statements
 
 | Statement | Description |

docs/content/preview/api/ysql/the-sql-language/statements/ddl_alter_publication.md

@@ -0,0 +1,89 @@
+---
+title: ALTER PUBLICATION statement [YSQL]
+headerTitle: ALTER PUBLICATION
+linkTitle: ALTER PUBLICATION
+description: Change properties of an existing publication.
+menu:
+  preview:
+    identifier: ddl_alter_publication
+    parent: statements
+type: docs
+---
+
+## Synopsis
+
+Use the `ALTER PUBLICATION` statement to change properties of an existing publication.
+
+## Syntax
+
+{{%ebnf%}}
+  alter_publication,
+  alter_publication_action
+{{%/ebnf%}}
+
+## Semantics
+
+### *alter_publication_action*
+
+Specify one of the following actions.
+
+#### ADD TABLE *table_name { ',' table_name }*
+
+Add the specified tables to the publication.
+
+#### SET TABLE *table_name { ',' table_name }*
+
+Replace the list of tables/schemas in the publication with the specified list. The existing tables/schemas that were present in the publication will be removed.
+
+#### DROP TABLE *table_name { ',' table_name }*
+
+Remove the specified tables from the publication.
+
+#### RENAME TO *publication_name*
+
+Rename the publication name to the specified name.
+
+#### OWNER TO *new_owner*
+
+Change the owner of the publication to the *new_owner*.
+
+### Permissions
+
+To alter a publication, the invoking user must own the publication. Adding a table to a publication additionally requires owning that table. To alter the owner, you must also be a direct or indirect member of the new owning role. The new owner must have `CREATE` privilege on the database. Also, the new owner of a `FOR ALL TABLES` publication must be a superuser. However, a superuser can change the ownership of a publication regardless of these restrictions.
+
+## Examples
+
+Assume that we already have 3 tables created within the database: `users`, `departments` and `employees`. Also, a publication `my_publication` has been created using the following command:
+
+```sql
+yugabyte=# CREATE PUBLICATION my_publication FOR TABLE employees;
+```
+
+Add tables `users` and `departments` to the publication `my_publication`.
+
+```sql
+yugabyte=# ALTER PUBLICATION my_publication ADD TABLE users, departments;
+```
+
+Drop tables `employees`from the publication `my_publication`.
+
+```sql
+yugabyte=# ALTER PUBLICATION my_publication DROP TABLE employees;
+```
+
+Set the tables to only `departments` in the publication `my_publication`. The table `users` will be removed from the publication as a result of the command.
+
+```sql
+yugabyte=# ALTER PUBLICATION my_publication SET TABLE departments;
+```
+
+Rename the publication `my_publication` to `renamed_publication`.
+
+```sql
+yugabyte=# ALTER PUBLICATION my_publication RENAME TO renamed_publication;
+```
+
+## See also
+
+- [`CREATE PUBLICATION`](../ddl_create_publication)
+- [`DROP PUBLICATION`](../ddl_drop_publication)

docs/content/preview/api/ysql/the-sql-language/statements/ddl_create_publication.md

@@ -0,0 +1,81 @@
+---
+title: CREATE PUBLICATION [YSQL]
+headerTitle: CREATE PUBLICATION
+linkTitle: CREATE PUBLICATION
+description: Use the CREATE PUBLICATION statement to create a publication in a database.
+menu:
+  preview:
+    identifier: ddl_create_publication
+    parent: statements
+type: docs
+---
+
+## Synopsis
+
+Use the `CREATE PUBLICATION` statement to create a publication in a database. A publication is a set of changes generated from a table or a group of tables, and might also be described as a change set or replication set. It defines the publication name and the tables included in it.
+
+## Syntax
+
+{{%ebnf%}}
+  create_publication,
+  publication_for_option
+{{%/ebnf%}}
+
+## Semantics
+
+Create a publication with *publication_name*. If `publication_name` already exists in the specified database, an error will be raised.
+
+### Tables
+
+The `FOR TABLE` option specifies a list of tables to add to the publication while the `FOR ALL TABLES` option marks the publication as one that replicates changes for all tables in the database, including tables created in the future.
+
+If `FOR TABLE` or `FOR ALL TABLES` are not specified, then the publication starts out with an empty set of tables. This is useful if tables are to be added later.
+
+### Permissions
+
+To create a publication, the invoking user must have the `CREATE` privilege for the current database. (Superusers bypass this check.)
+
+To add a table to a publication, the invoking user must have ownership rights on the table. The `FOR ALL TABLES` clause requires the invoking user to be a **superuser**.
+
+### Limitations
+
+Currently to publish a subset of operations (create, update, delete, truncate) via a Publication is not supported.
+
+## Examples
+
+### Publication with two tables
+
+```sql
+yugabyte=# CREATE PUBLICATION mypublication FOR TABLE users, departments;
+```
+
+In this example, the publication `mypublication` will consist of two tables, `users` and `departments`.
+
+```sql{.nocopy}
+yugabyte=# select * from pg_publication;
+    pubname    | pubowner | puballtables | pubinsert | pubupdate | pubdelete | pubtruncate
+---------------+----------+--------------+-----------+-----------+-----------+-------------
+ mypublication |    13250 | f            | t         | t         | t         | t
+(1 row)
+```
+
+### Publication for all tables
+
+```sql
+yugabyte=# CREATE PUBLICATION puballtables FOR ALL TABLES;
+```
+
+In this example, the publication `puballtables` will include all the current as well as future tables.
+
+```sql{.nocopy}
+yugabyte=# select * from pg_publication;
+    pubname    | pubowner | puballtables | pubinsert | pubupdate | pubdelete | pubtruncate
+---------------+----------+--------------+-----------+-----------+-----------+-------------
+ puballtables  |    13250 | t            | t         | t         | t         | t
+(1 row)
+```
+
+## See also
+
+- [`ALTER PUBLICATION`](../ddl_alter_publication)
+- [`DROP PUBLICATION`](../ddl_drop_publication)

docs/content/preview/api/ysql/the-sql-language/statements/ddl_drop_publication.md

@@ -0,0 +1,48 @@
+---
+title: DROP PUBLICATION statement [YSQL]
+headerTitle: DROP PUBLICATION
+linkTitle: DROP PUBLICATION
+description: Use the DROP PUBLICATION statement to remove a publication from a database.
+menu:
+  preview:
+    identifier: ddl_drop_publication
+    parent: statements
+aliases:
+  - /preview/api/ysql/commands/ddl_drop_publication/
+type: docs
+---
+
+## Synopsis
+
+Use the `DROP PUBLICATION` statement to remove a publication from a database.
+
+## Syntax
+
+{{%ebnf%}}
+  drop_publication,
+{{%/ebnf%}}
+
+## Semantics
+
+Drop a publication named *publication_name*. If `publication_name` doesn't already exists in the specified database, an error will be raised unless the `IF EXISTS` clause is used.
+
+### RESTRICT / CASCADE
+
+These key words do not have any effect, since there are no dependencies on publications.
+
+### Permissions
+
+A publication can only be dropped by its owner or a superuser.
+
+## Examples
+
+Basic example.
+
+```sql
+yugabyte=# DROP PUBLICATION mypublication;
+```
+
+## See also
+
+- [`CREATE PUBLICATION`](../ddl_create_publication)
+- [`ALTER PUBLICATION`](../ddl_alter_publication)