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下表列举了openGauss中支持的扩展语法，不作为商用特性交付，仅供参考。
表 1 扩展SQL语法
扩展语法
- 发行说明
- 安装指南
- 技术白皮书
- 工具参考
- 管理员指南
- 内存表特性
- 编译指导书
- 术语表
- 快速入门
- 产品描述
- 开发者指南
- 导入数据
- 管理数据库安全
- 常见故障定位指南
- 应用程序开发教程
- GUC参数说明
- 概述
- 存储过程
- 配置运行参数
- DBE_PERF Schema
- Session/Thread
- THREAD_WAIT_STATUS
- SESSION_STAT
- GLOBAL_SESSION_TIME
- STATEMENT_IOSTAT_COMPLEX_RUNTIME
- GLOBAL_SESSION_MEMORY
- LOCAL_THREADPOOL_STATUS
- SESSION_CPU_RUNTIME
- GLOBAL_THREAD_WAIT_STATUS
- GLOBAL_SESSION_STAT_ACTIVITY
- GLOBAL_SESSION_STAT
- SESSION_MEMORY_DETAIL
- SESSION_TIME
- SESSION_MEMORY_RUNTIME
- SESSION_STAT_ACTIVITY
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY_DETAIL
- GLOBAL_THREADPOOL_STATUS
- File
- Configuration
- Query
- STATEMENT_COMPLEX_HISTORY
- SUMMARY_STATEMENT
- STATEMENT_RESPONSETIME_PERCENTILE
- STATEMENT
- GLOBAL_STATEMENT_COMPLEX_HISTORY_TABLE
- STATEMENT_WLMSTAT_COMPLEX_RUNTIME
- SUMMARY_STATEMENT_COUNT
- GLOBAL_STATEMENT_COMPLEX_HISTORY
- STATEMENT_USER_COMPLEX_HISTORY
- STATEMENT_COMPLEX_RUNTIME
- GLOBAL_STATEMENT_COMPLEX_RUNTIME
- STATEMENT_COMPLEX_HISTORY_TABLE
- GLOBAL_STATEMENT_COUNT
- STATEMENT_COUNT
- Wait Events
- Workload Manager
- Instance
- Cache/IO
- STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- STATIO_ALL_INDEXES
- STATIO_SYS_INDEXES
- STATIO_USER_SEQUENCES
- GLOBAL_STAT_SESSION_CU
- SUMMARY_STATIO_ALL_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_ALL_INDEXES
- GLOBAL_STATIO_SYS_TABLES
- GLOBAL_STAT_DB_CU
- GLOBAL_STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_ALL_TABLES
- SUMMARY_STATIO_USER_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- STATIO_ALL_SEQUENCES
- STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_USER_TABLES
- SUMMARY_STATIO_SYS_TABLES
- STATIO_SYS_TABLES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_SEQUENCES
- OS
- Operator
- Workload
- Memory
- Lock
- Transaction
- Utility
- Object
- SUMMARY_STAT_ALL_INDEXES
- STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- SUMMARY_STAT_DATABASE_CONFLICTS
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_USER_TABLES
- STAT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_USER_FUNCTIONS
- GLOBAL_STAT_BAD_BLOCK
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_USER_FUNCTIONS
- STAT_USER_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- SUMMARY_STAT_XACT_ALL_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_BAD_BLOCK
- SUMMARY_STAT_SYS_TABLES
- STAT_ALL_INDEXES
- GLOBAL_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_SYS_TABLES
- GLOBAL_STAT_USER_INDEXES
- STAT_USER_TABLES
- STAT_SYS_TABLES
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_USER_INDEXES
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_ALL_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_ALL_TABLES
- STAT_DATABASE
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_SYS_INDEXES
- GLOBAL_STAT_DATABASE
- Session/Thread
- AI特性
- SQL参考
- 关键字
- DDL语法一览表
- 全文检索
- 系统操作
- 数据类型
- openGauss SQL
- SQL语法
- ALTER SCHEMA
- DROP ROW LEVEL SECURITY POLICY
- ALTER SYNONYM
- START TRANSACTION
- DROP FUNCTION
- CREATE TABLESPACE
- ALTER ROLE
- DROP INDEX
- ROLLBACK
- SET CONSTRAINTS
- COMMENT
- CREATE SEQUENCE
- DO
- SET SESSION AUTHORIZATION
- CREATE TEXT SEARCH CONFIGURATION
- CREATE VIEW
- CREATE SCHEMA
- ALTER ROW LEVEL SECURITY POLICY
- DROP DIRECTORY
- CREATE TABLE
- DROP DATABASE
- CREATE DATABASE
- CREATE INDEX
- CREATE TEXT SEARCH DICTIONARY
- DROP TABLE
- ALTER GROUP
- DROP DATA SOURCE
- ALTER SESSION
- ALTER TEXT SEARCH CONFIGURATION
- ALTER USER
- UPDATE
- ABORT
- CREATE DIRECTORY
- ALTER VIEW
- DROP SEQUENCE
- COPY
- EXPLAIN
- DROP TYPE
- DROP VIEW
- ALTER SYSTEM KILL SESSION
- CLUSTER
- ALTER DATABASE
- SET ROLE
- SHOW
- PREPARE TRANSACTION
- BEGIN
- SELECT
- CREATE ROLE
- ALTER SEQUENCE
- DROP ROLE
- CREATE TABLE PARTITION
- CREATE TABLE AS
- SET
- CLOSE
- PREPARE
- MERGE INTO
- CREATE TRIGGER
- ALTER DEFAULT PRIVILEGES
- ALTER INDEX
- DECLARE
- DROP GROUP
- DEALLOCATE
- VALUES
- CREATE FUNCTION
- MOVE
- DELETE
- EXECUTE
- FETCH
- DROP OWNED
- REASSIGN OWNED
- RELEASE SAVEPOINT
- SET TRANSACTION
- CREATE DATA SOURCE
- ALTER DIRECTORY
- ROLLBACK TO SAVEPOINT
- DROP TEXT SEARCH DICTIONARY
- CREATE ROW LEVEL SECURITY POLICY
- ALTER TEXT SEARCH DICTIONARY
- CREATE USER
- INSERT
- REINDEX
- COMMIT PREPARED
- VACUUM
- ALTER TYPE
- ALTER FUNCTION
- DROP TRIGGER
- DROP USER
- ALTER TABLE PARTITION
- ANALYZE | ANALYSE
- CALL
- SAVEPOINT
- DROP TABLESPACE
- ALTER DATA SOURCE
- SELECT INTO
- TRUNCATE
- ALTER LARGE OBJECT
- ROLLBACK PREPARED
- ALTER TABLE
- ALTER TABLESPACE
- DROP SCHEMA
- DROP PROCEDURE
- EXPLAIN PLAN
- CREATE PROCEDURE
- CURSOR
- CREATE SYNONYM
- CHECKPOINT
- DROP TEXT SEARCH CONFIGURATION
- CREATE GROUP
- GRANT
- ALTER TRIGGER
- DROP SYNONYM
- CREATE TYPE
- REVOKE
- COMMIT | END
- RESET
- 类型转换
- 函数和操作符
- 常量与宏
- 附录
- DML语法一览表
- DCL语法一览表
- 事务控制
- 表达式
- WDR Snapshot Schema
- 数据库使用
- 用户自定义函数
- 接口参考
- JDBC
- java.sql.Connection
- CopyManager
- java.sql.CallableStatement
- java.sql.PreparedStatement
- java.sql.ResultSetMetaData
- javax.sql.ConnectionPoolDataSource
- java.sql.Statement
- java.sql.DatabaseMetaData
- javax.sql.PooledConnection
- javax.naming.spi.InitialContextFactory
- javax.naming.Context
- java.sql.Driver
- java.sql.ResultSet
- javax.sql.DataSource
- ODBC
- libpq
- JDBC
- 系统表和系统视图
- 系统表
- PG_PLTEMPLATE
- GS_WLM_PLAN_OPERATOR_INFO
- GS_OPT_MODEL
- PG_ENUM
- PG_APP_WORKLOADGROUP_MAPPING
- PG_EXTENSION_DATA_SOURCE
- PG_RESOURCE_POOL
- PG_PROC
- PG_OPFAMILY
- PG_TS_DICT
- PG_JOB_PROC
- PG_CONSTRAINT
- PG_CLASS
- PLAN_TABLE_DATA
- PG_AUTHID
- PG_DEPEND
- PG_CAST
- PG_TYPE
- GS_WLM_OPERATOR_INFO
- PG_FOREIGN_DATA_WRAPPER
- PG_TS_PARSER
- PG_TRIGGER
- PG_TS_CONFIG_MAP
- PG_EXTENSION
- PG_RLSPOLICY
- PG_AGGREGATE
- PG_DATABASE
- GS_WLM_USER_RESOURCE_HISTORY
- PG_SHDESCRIPTION
- PG_JOB
- PG_TS_CONFIG
- GS_WLM_PLAN_ENCODING_TABLE
- PG_INDEX
- PG_AMOP
- PG_TS_TEMPLATE
- PG_USER_MAPPING
- PG_ATTRIBUTE
- PG_OPCLASS
- GS_WLM_SESSION_QUERY_INFO_ALL
- PG_TABLESPACE
- PG_SECLABEL
- PG_DIRECTORY
- PG_AUTH_HISTORY
- PG_AM
- PG_OPERATOR
- PG_STATISTIC_EXT
- PG_REWRITE
- PG_RANGE
- PG_NAMESPACE
- PG_CONVERSION
- PG_DESCRIPTION
- PG_LARGEOBJECT_METADATA
- PG_OBJECT
- PG_FOREIGN_TABLE
- PG_DEFAULT_ACL
- PG_PARTITION
- GS_WLM_INSTANCE_HISTORY
- PG_SHDEPEND
- PG_COLLATION
- PG_STATISTIC
- PG_DB_ROLE_SETTING
- PG_INHERITS
- PG_LARGEOBJECT
- PG_ATTRDEF
- PG_LANGUAGE
- PG_WORKLOAD_GROUP
- PG_USER_STATUS
- PG_AUTH_MEMBERS
- PG_AMPROC
- PG_SHSECLABEL
- PG_FOREIGN_SERVER
- 系统表和系统视图概述
- 系统视图
- PG_STAT_BGWRITER
- PG_RULES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_PREPARED_XACTS
- PG_THREAD_WAIT_STATUS
- GS_SESSION_MEMORY_DETAIL
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STATS
- PG_STAT_USER_INDEXES
- PG_STATIO_ALL_INDEXES
- PG_TABLES
- PG_TDE_INFO
- GS_SQL_COUNT
- PG_STATIO_USER_TABLES
- PG_USER
- PG_REPLICATION_SLOTS
- PG_SHADOW
- PG_INDEXES
- PG_WLM_STATISTICS
- GS_THREAD_MEMORY_DETAIL
- PG_PREPARED_STATEMENTS
- PG_CURSORS
- GS_WLM_SESSION_INFO_ALL
- PG_STAT_SYS_TABLES
- PG_GET_INVALID_BACKENDS
- PG_STATIO_SYS_SEQUENCES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_DATABASE_CONFLICTS
- PLAN_TABLE
- PG_STAT_ALL_TABLES
- PG_GET_SENDERS_CATCHUP_TIME
- PG_STAT_DATABASE
- PG_STAT_ALL_INDEXES
- PG_USER_MAPPINGS
- GS_WLM_PLAN_OPERATOR_HISTORY
- PG_STATIO_USER_INDEXES
- PG_EXT_STATS
- PG_VIEWS
- GS_WLM_USER_INFO
- GS_REDO_STAT
- PG_STAT_REPLICATION
- PG_OS_THREADS
- GS_FILE_STAT
- PG_NODE_ENV
- GS_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_AVAILABLE_EXTENSION_VERSIONS
- GS_SESSION_CPU_STATISTICS
- PG_VARIABLE_INFO
- PG_STATIO_SYS_TABLES
- PG_TIMEZONE_ABBREVS
- GS_WLM_OPERATOR_STATISTICS
- PG_STAT_USER_TABLES
- PG_SECLABELS
- GS_INSTANCE_TIME
- GS_SESSION_TIME
- PG_TOTAL_USER_RESOURCE_INFO_OID
- GS_SESSION_STAT
- PG_LOCKS
- PG_STAT_XACT_ALL_TABLES
- PG_TIMEZONE_NAMES
- PG_STAT_SYS_INDEXES
- PG_GROUP
- GS_WLM_SESSION_STATISTICS
- PG_RLSPOLICIES
- PG_STAT_BAD_BLOCK
- GS_STAT_SESSION_CU
- GS_WLM_REBUILD_USER_RESOURCE_POOL
- PG_STATIO_USER_SEQUENCES
- GS_SESSION_MEMORY
- PG_SESSION_IOSTAT
- PG_STAT_USER_FUNCTIONS
- GS_OS_RUN_INFO
- GS_SESSION_MEMORY_STATISTICS
- PG_STAT_ACTIVITY
- GS_STAT_DB_CU
- PG_ROLES
- PG_SESSION_WLMSTAT
- GS_WLM_OPERATOR_HISTORY
- PG_STAT_XACT_USER_TABLES
- GS_WLM_SESSION_HISTORY
- PG_AVAILABLE_EXTENSIONS
- MPP_TABLES
- GS_WLM_RESOURCE_POOL
- PG_SETTINGS
- 系统表
- 导出数据
- 法律声明
- 性能调优
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