DDL（数据定义语句）
- VALUES
- VACUUM
- UNLISTEN
- TRUNCATE
- SHOW
- SET
- SET SESSION AUTHORIZATION
- SET ROLE
- SET CONSTRAINTS
- SELECT INTO
- SECURITY LABEL
- ROLLBACK TO SAVEPOINT
- ROLLBACK PREPARED
- REVOKE
- RESET
- RELEASE SAVEPOINT
- REINDEX
- REFRESH MATERIALIZED VIEW
- REASSIGN OWNED
- PREPARE
- PREPARE TRANSACTION
- NOTIFY
- MOVE
- LOAD
- LISTEN
- GRANT
- FETCH
- EXECUTE
- DROP VIEW
- DROP USER
- DROP TYPE
- DROP TEXT SEARCH TEMPLATE
- DROP TEXT SEARCH PARSER
- DROP TEXT SEARCH DICTIONARY
- DROP TEXT SEARCH CONFIGURATION
- DROP TRIGGER
- DROP TRANSFORM
- DROP TABLESPACE
- DROP TABLE
- DROP SUBSCRIPTION
- DROP STATISTICS
- DROP SEQUENCE
- DROP SCHEMA
- DROP RULE
- DROP ROUTINE
- DROP ROLE
- DROP PUBLICATION
- DROP PROCEDURE
- DROP POLICY
- DROP OPERATOR FAMILY
- DROP OPERATOR
- DROP OPERATOR CLASS
- DROP MATERIALIZED VIEW
- DROP LANGUAGE
- DROP INDEX
- DROP GROUP
- DROP FUNCTION
- DROP EXTENSION
- DROP EVENT TRIGGER
- DROP DOMAIN
- DROP DATABASE
- DROP CONVERSION
- DROP COLLATION
- DROP CAST
- DROP AGGREGATE
- DROP OWNED
- DROP ACCESS METHOD
- DISCARD
- DECLARE
- DEALLOCATE
- CREATE VIEW
- CREATE USER
- CREATE TYPE
- CREATE TEXT SEARCH TEMPLATE
- CREATE TEXT SEARCH PARSER
- CREATE TEXT SEARCH DICTIONARY
- CREATE TEXT SEARCH CONFIGURATION
- CREATE TRIGGER
- CREATE TRANSFORM
- CREATE TABLESPACE
- CREATE TABLE AS
- CREATE TABLE
- CREATE SUBSCRIPTION
- CREATE STATISTICS
- CREATE SEQUENCE
- CREATE SCHEMA
- CREATE RULE
- CREATE ROLE
- CREATE PUBLICATION
- CREATE PROCEDURE
- CREATE POLICY
- CREATE OPERATOR FAMILY
- CREATE OPERATOR
- CREATE OPERATOR CLASS
- CREATE MATERIALIZED VIEW
- CREATE LANGUAGE
- CREATE INDEX
- CREATE GROUP
- CREATE FUNCTION
- CREATE FUNCTION ... AGGREGATE USING type_name
- CREATE EXTENSION
- CREATE EVENT TRIGGER
- CREATE DOMAIN
- CREATE DATABASE
- CREATE CONVERSION
- CREATE COLLATION
- CREATE CAST
- CREATE AGGREGATE
- CREATE ACCESS METHOD
- COPY
- COMMIT PREPARED
- COMMENT
- CLUSTER
- CLOSE
- CHECKPOINT
- ANALYZE
- ALTER VIEW
- ALTER USER
- ALTER TYPE
- TEXT SEARCH TEMPLATE
- ALTER TEXT SEARCH PARSER
- ALTER TEXT SEARCH DICTIONARY
- ALTER TEXT SEARCH CONFIGURATION
- ALTER TRIGGER
- ALTER TABLESPACE
- ALTER TABLE
- ALTER SYSTEM
- ALTER SUBSCRIPTION
- ALTER STATISTICS
- ALTER SEQUENCE
- ALTER SCHEMA
- ALTER RULE
- ALTER ROUTINE
- ALTER ROLE
- ALTER PUBLICATION
- ALTER PROCEDURE
- ALTER POLICY
- ALTER OPERATOR FAMILY
- ALTER OPERATOR
- ALTER OPERATOR CLASS
- ALTER MATERIALIZED VIEW
- ALTER LARGE OBJECT
- ALTER LANGUAGE
- ALTER INDEX
- ALTER GROUP
- ALTER FUNCTION
- ALTER EXTENSION
- ALTER EVENT TRIGGER
- ALTER DOMAIN
- ALTER DEFAULT PRIVILEGES
- ALTER DATABASE
- ALTER CONVERSION
- ALTER COLLATION
- ALTER AGGREGATE