v5.0
- About MogDB
- Quick Start
- Characteristic Description
- Overview
- High Performance
- CBO Optimizer
- LLVM
- Vectorized Engine
- Hybrid Row-Column Store
- Adaptive Compression
- Adaptive Two-phase Hash Aggregation
- SQL Bypass
- Kunpeng NUMA Architecture Optimization
- High Concurrency of Thread Pools
- SMP for Parallel Execution
- Xlog no Lock Flush
- Parallel Page-based Redo For Ustore
- Row-Store Execution to Vectorized Execution
- Astore Row Level Compression
- BTree Index Compression
- Tracing SQL Function
- Parallel Index Scan
- Parallel Query Optimization
- Enhancement of Tracing Backend Key Thread
- Ordering Operator Optimization
- OCK-accelerated Data Transmission
- OCK SCRLock Accelerate Distributed Lock
- Enhancement of WAL Redo Performance
- High Availability (HA)
- Primary/Standby
- Logical Replication
- Logical Backup
- Physical Backup
- Automatic Job Retry upon Failure
- Ultimate RTO
- High Availability Based on the Paxos Protocol
- Cascaded Standby Server
- Delayed Replay
- Adding or Deleting a Standby Server
- Delaying Entering the Maximum Availability Mode
- Parallel Logical Decoding
- DCF
- CM(Cluster Manager)
- Global SysCache
- Using a Standby Node to Build a Standby Node
- Two City and Three Center DR
- CM Cluster Management Component Supporting Two Node Deployment
- Query of the Original DDL Statement for a View
- Maintainability
- Gray Upgrade
- Workload Diagnosis Report (WDR)
- Slow SQL Diagnosis
- Session Performance Diagnosis
- System KPI-aided Diagnosis
- Fault Diagnosis
- Extension Splitting
- Built-in Stack Tool
- SQL PATCH
- Lightweight Lock Export and Analysis
- DCF Module Tracing
- Error When Writing Illegal Characters
- Support For Pageinspect & Pagehack
- Compatibility
- Add %rowtype Attribute To The View
- Aggregate Functions Distinct Performance Optimization
- Aggregate Functions Support Keep Clause
- Aggregate Functions Support Scenario Extensions
- Compatible With MySQL Alias Support For Single Quotes
- current_date/current_time Keywords As Field Name
- Custom Type Array
- For Update Support Outer Join
- MogDB Supports Insert All
- Oracle DBLink Syntax Compatibility
- Remove Type Conversion Hint When Creating PACKAGE/FUNCTION/PROCEDURE
- Support Bypass Method When Merge Into Hit Index
- Support For Adding Nocopy Attributes To Procedure And Function Parameters
- Support For Passing The Count Attribute Of An Array As A Parameter Of The Array Extend
- Support Q Quote Escape Character
- Support Subtracting Two Date Types To Return Numeric Type
- Support table()
- Support To Keep The Same Name After The End With Oracle
- Support Where Current Of
- Support For Constants In Package As Default Values
- Support PLPGSQL subtype
- Support Synonym Calls Without Parentheses For Function Without Parameters
- Support For dbms_utility.format_error_backtrace
- Database Security
- Access Control Model
- Separation of Control and Access Permissions
- Database Encryption Authentication
- Data Encryption and Storage
- Database Audit
- Network Communication Security
- Resource Label
- Unified Audit
- Dynamic Data Anonymization
- Row-Level Access Control
- Password Strength Verification
- Equality Query in a Fully-encrypted Database
- Ledger Database Mechanism
- Transparent Data Encryption
- Enterprise-Level Features
- Support for Functions and Stored Procedures
- SQL Hints
- Full-Text Indexing
- Copy Interface for Error Tolerance
- Partitioning
- Support for Advanced Analysis Functions
- Materialized View
- HyperLogLog
- Creating an Index Online
- Autonomous Transaction
- Global Temporary Table
- Pseudocolumn ROWNUM
- Stored Procedure Debugging
- JDBC Client Load Balancing and Read/Write Isolation
- In-place Update Storage Engine
- Publication-Subscription
- Foreign Key Lock Enhancement
- Data Compression in OLTP Scenarios
- Transaction Async Submit
- Index Creation Parallel Control
- Dynamic Partition Pruning
- COPY Import Optimization
- SQL Running Status Observation
- BRIN Index
- BLOOM Index
- Event Trigger
- Application Development Interfaces
- AI Capabilities
- Middleware
- Workload Management
- Installation Guide
- Administrator Guide
- Localization
- Routine Maintenance
- Starting and Stopping MogDB
- Using the gsql Client for Connection
- Routine Maintenance
- Checking OS Parameters
- Checking MogDB Health Status
- Checking Database Performance
- Checking and Deleting Logs
- Checking Time Consistency
- Checking The Number of Application Connections
- Routinely Maintaining Tables
- Routinely Recreating an Index
- Exporting and Viewing the WDR
- Data Security Maintenance Suggestions
- Slow SQL Diagnosis
- Log Reference
- Primary and Standby Management
- MOT Engine
- Column-store Tables Management
- Backup and Restoration
- Database Deployment Solutions
- Importing and Exporting Data
- Upgrade Guide
- AI Features Guide
- AI4DB: Autonomous Database O&M
- DBMind Mode
- Components that Support DBMind
- AI Sub-functions of the DBMind
- ABO Optimizer
- DB4AI: Database-driven AI
- AI4DB: Autonomous Database O&M
- Security Guide
- Developer Guide
- Application Development Guide
- Development Specifications
- Development Based on JDBC
- JDBC Package, Driver Class, and Environment Class
- Development Process
- Loading the Driver
- Connecting to a Database
- Connecting to the Database (Using SSL)
- Connecting to the Database (Using UDS)
- Running SQL Statements
- Processing Data in a Result Set
- Closing a Connection
- Managing Logs
- Example: Common Operations
- Example: Retrying SQL Queries for Applications
- Example: Importing and Exporting Data Through Local Files
- Example 2: Migrating Data from a MY Database to MogDB
- Example: Logic Replication Code
- Example: Parameters for Connecting to the Database in Different Scenarios
- Example: JDBC Primary/Standby Cluster Load Balancing
- JDBC API Reference
- java.sql.Connection
- java.sql.CallableStatement
- java.sql.DatabaseMetaData
- java.sql.Driver
- java.sql.PreparedStatement
- java.sql.ResultSet
- java.sql.ResultSetMetaData
- java.sql.Statement
- javax.sql.ConnectionPoolDataSource
- javax.sql.DataSource
- javax.sql.PooledConnection
- javax.naming.Context
- javax.naming.spi.InitialContextFactory
- CopyManager
- JDBC-based Common Parameter Reference
- JDBC Release Notes
- Development Based on ODBC
- Development Based on libpq
- Psycopg2-Based Development
- Commissioning
- Stored Procedure
- User Defined Functions
- PL/pgSQL-SQL Procedural Language
- Scheduled Jobs
- Autonomous Transaction
- Logical Replication
- Extension
- MySQL Compatibility Description
- Dolphin Extension
- Dolphin Overview
- Dolphin Installation
- Dolphin Restrictions
- Dolphin Syntax
- SQL Reference
- Keywords
- Data Types
- Functions and Operators
- Assignment Operators
- Character Processing Functions and Operators
- Arithmetic Functions and Operators
- Dolphin Lock
- Date and Time Processing Functions and Operators
- Advisory Lock Functions
- Network Address Functions and Operators
- Conditional Expression Functions
- Aggregate Functions
- System Information Functions
- Logical Operators
- Bit String Functions and Operators
- JSON-JSONB Functions and Operators
- Type Conversion Functions
- Compatible Operators and Operations
- Comment Operators
- Expressions
- DDL Syntax
- DML Syntax
- DCL Syntax
- SQL Syntax
- ALTER DATABASE
- ALTER FUNCTION
- ALTER PROCEDURE
- ALTER SERVER
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLESPACE
- ALTER VIEW
- ANALYZE | ANALYSE
- AST
- CHECKSUM TABLE
- CREATE DATABASE
- CREATE FUNCTION
- CREATE INDEX
- CREATE PROCEDURE
- CREATE SERVER
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TABLESPACE
- CREATE TRIGGER
- CREATE VIEW
- DESCRIBE TABLE
- DO
- DROP DATABASE
- DROP INDEX
- DROP TABLESPACE
- EXECUTE
- EXPLAIN
- FLUSH BINARY LOGS
- GRANT
- GRANT/REVOKE PROXY
- INSERT
- KILL
- LOAD DATA
- OPTIMIZE TABLE
- PREPARE
- RENAME TABLE
- RENAME USER
- REVOKE
- SELECT
- SELECT HINT
- SET CHARSET
- SET PASSWORD
- SHOW CHARACTER SET
- SHOW COLLATION
- SHOW COLUMNS
- SHOW CREATE DATABASE
- SHOW CREATE FUNCTION
- SHOW CREATE PROCEDURE
- SHOW CREATE TABLE
- SHOW CREATE TRIGGER
- SHOW CREATE VIEW
- SHOW DATABASES
- SHOW FUNCTION STATUS
- SHOW GRANTS
- SHOW INDEX
- SHOW MASTER STATUS
- SHOW PLUGINS
- SHOW PRIVILEGES
- SHOW PROCEDURE STATUS
- SHOW PROCESSLIST
- SHOW SLAVE HOSTS
- SHOW STATUS
- SHOW TABLES
- SHOW TABLE STATUS
- SHOW TRIGGERS
- SHOW VARIABLES
- SHOW WARNINGS/ERRORS
- UPDATE
- USE db_name
- System Views
- GUC Parameters
- Resetting Parameters
- Stored Procedures
- Identifiers
- SQL Reference
- MySQL Syntax Compatibility Assessment Tool
- Dolphin Extension
- Materialized View
- Partition Management
- Application Development Guide
- Performance Tuning Guide
- Reference Guide
- System Catalogs and System Views
- Overview
- Querying a System Catalog
- System Catalogs
- GS_ASP
- GS_AUDITING_POLICY
- GS_AUDITING_POLICY_ACCESS
- GS_AUDITING_POLICY_FILTERS
- GS_AUDITING_POLICY_PRIVILEGES
- GS_CLIENT_GLOBAL_KEYS
- GS_CLIENT_GLOBAL_KEYS_ARGS
- GS_COLUMN_KEYS
- GS_COLUMN_KEYS_ARGS
- GS_DB_PRIVILEGE
- GS_ENCRYPTED_COLUMNS
- GS_ENCRYPTED_PROC
- GS_GLOBAL_CHAIN
- GS_GLOBAL_CONFIG
- GS_MASKING_POLICY
- GS_MASKING_POLICY_ACTIONS
- GS_MASKING_POLICY_FILTERS
- GS_MATVIEW
- GS_MATVIEW_DEPENDENCY
- GS_MODEL_WAREHOUSE
- GS_OPT_MODEL
- GS_PACKAGE
- GS_POLICY_LABEL
- GS_RECYCLEBIN
- GS_TXN_SNAPSHOT
- GS_UID
- GS_WLM_EC_OPERATOR_INFO
- GS_WLM_INSTANCE_HISTORY
- GS_WLM_OPERATOR_INFO
- GS_WLM_PLAN_ENCODING_TABLE
- GS_WLM_PLAN_OPERATOR_INFO
- GS_WLM_SESSION_QUERY_INFO_ALL
- GS_WLM_USER_RESOURCE_HISTORY
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_APP_WORKLOADGROUP_MAPPING
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- PG_AUTHID
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DB_ROLE_SETTING
- PG_DEFAULT_ACL
- PG_DEPEND
- PG_DESCRIPTION
- PG_DIRECTORY
- PG_ENUM
- PG_EVENT_TRIGGER
- PG_EXTENSION
- PG_EXTENSION_DATA_SOURCE
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_FOREIGN_TABLE
- PG_HASHBUCKET
- PG_INDEX
- PG_INHERITS
- PG_JOB
- PG_JOB_PROC
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_NAMESPACE
- PG_OBJECT
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PARTITION
- PG_PLTEMPLATE
- PG_PROC
- PG_PUBLICATION
- PG_PUBLICATION_REL
- PG_RANGE
- PG_REPLICATION_ORIGIN
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_RLSPOLICY
- PG_SECLABEL
- PG_SET
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_SUBSCRIPTION
- PG_SUBSCRIPTION_REL
- PG_SYNONYM
- PG_TABLESPACE
- PG_TRIGGER
- PG_TS_CONFIG
- PG_TS_CONFIG_MAP
- PG_TS_DICT
- PG_TS_PARSER
- PG_TS_TEMPLATE
- PG_TYPE
- PG_USER_MAPPING
- PG_USER_STATUS
- PG_WORKLOAD_GROUP
- PGXC_CLASS
- PGXC_GROUP
- PGXC_NODE
- PGXC_SLICE
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- System Views
- GET_GLOBAL_PREPARED_XACTS(Discarded)
- GS_ASYNC_SUBMIT_SESSIONS_STATUS
- GS_AUDITING
- GS_AUDITING_ACCESS
- GS_AUDITING_PRIVILEGE
- GS_CLUSTER_RESOURCE_INFO
- GS_COMPRESSION
- GS_DB_PRIVILEGES
- GS_FILE_STAT
- GS_GSC_MEMORY_DETAIL
- GS_INSTANCE_TIME
- GS_LABELS
- GS_LSC_MEMORY_DETAIL
- GS_MASKING
- GS_MATVIEWS
- GS_OS_RUN_INFO
- GS_REDO_STAT
- GS_SESSION_CPU_STATISTICS
- GS_SESSION_MEMORY
- GS_SESSION_MEMORY_CONTEXT
- GS_SESSION_MEMORY_DETAIL
- GS_SESSION_MEMORY_STATISTICS
- GS_SESSION_STAT
- GS_SESSION_TIME
- GS_SQL_COUNT
- GS_STAT_SESSION_CU
- GS_THREAD_MEMORY_CONTEXT
- GS_TOTAL_MEMORY_DETAIL
- GS_WLM_CGROUP_INFO
- GS_WLM_EC_OPERATOR_STATISTICS
- GS_WLM_OPERATOR_HISTORY
- GS_WLM_OPERATOR_STATISTICS
- GS_WLM_PLAN_OPERATOR_HISTORY
- GS_WLM_REBUILD_USER_RESOURCE_POOL
- GS_WLM_RESOURCE_POOL
- GS_WLM_SESSION_HISTORY
- GS_WLM_SESSION_INFO
- GS_WLM_SESSION_INFO_ALL
- GS_WLM_SESSION_STATISTICS
- GS_WLM_USER_INFO
- MPP_TABLES
- PG_AVAILABLE_EXTENSION_VERSIONS
- PG_AVAILABLE_EXTENSIONS
- PG_COMM_DELAY
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_STATUS
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_INVALID_BACKENDS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GROUP
- PG_GTT_ATTACHED_PIDS
- PG_GTT_RELSTATS
- PG_GTT_STATS
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_PUBLICATION_TABLES
- PG_REPLICATION_ORIGIN_STATUS
- PG_REPLICATION_SLOTS
- PG_RLSPOLICIES
- PG_ROLES
- PG_RULES
- PG_RUNNING_XACTS
- PG_SECLABELS
- PG_SESSION_IOSTAT
- PG_SESSION_WLMSTAT
- PG_SETTINGS
- PG_SHADOW
- PG_STAT_ACTIVITY
- PG_STAT_ACTIVITY_NG
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_REPLICATION
- PG_STAT_SUBSCRIPTION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_TABLES
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_XACT_ALL_TABLES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STAT_XACT_USER_TABLES
- PG_STATIO_ALL_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_SYS_SEQUENCES
- PG_STATIO_SYS_TABLES
- PG_STATIO_USER_INDEXES
- PG_STATIO_USER_SEQUENCES
- PG_STATIO_USER_TABLES
- PG_STATS
- PG_TABLES
- PG_TDE_INFO
- PG_THREAD_WAIT_STATUS
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_TOTAL_USER_RESOURCE_INFO_OID
- PG_USER
- PG_USER_MAPPINGS
- PG_VARIABLE_INFO
- PG_VIEWS
- PG_WLM_STATISTICS
- PGXC_PREPARED_XACTS
- PLAN_TABLE
- Functions and Operators
- Logical Operators
- Comparison Operators
- Character Processing Functions and Operators
- Binary String Functions and Operators
- Bit String Functions and Operators
- Mode Matching Operators
- Mathematical Functions and Operators
- Date and Time Processing Functions and Operators
- Type Conversion Functions
- Geometric Functions and Operators
- Network Address Functions and Operators
- Text Search Functions and Operators
- JSON/JSONB Functions and Operators
- HLL Functions and Operators
- SEQUENCE Functions
- Array Functions and Operators
- Range Functions and Operators
- Aggregate Functions
- Window Functions(Analysis Functions)
- Security Functions
- Ledger Database Functions
- Encrypted Equality Functions
- Set Returning Functions
- Conditional Expression Functions
- System Information Functions
- System Administration Functions
- Configuration Settings Functions
- Universal File Access Functions
- Server Signal Functions
- Backup and Restoration Control Functions
- Snapshot Synchronization Functions
- Database Object Functions
- Advisory Lock Functions
- Logical Replication Functions
- Segment-Page Storage Functions
- Other Functions
- Undo System Functions
- Row-store Compression System Functions
- Statistics Information Functions
- Trigger Functions
- Event Trigger Functions
- Hash Function
- Prompt Message Function
- Global Temporary Table Functions
- Fault Injection System Function
- AI Feature Functions
- Dynamic Data Masking Functions
- Other System Functions
- Internal Functions
- Global SysCache Feature Functions
- Data Damage Detection and Repair Functions
- XML Functions
- Obsolete Functions
- Supported Data Types
- SQL Syntax
- ABORT
- ALTER AGGREGATE
- ALTER AUDIT POLICY
- ALTER DATABASE
- ALTER DATA SOURCE
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER EVENT
- ALTER EVENT TRIGGER
- ALTER EXTENSION
- ALTER FOREIGN DATA WRAPPER
- ALTER FOREIGN TABLE
- ALTER FUNCTION
- ALTER GLOBAL CONFIGURATION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER LARGE OBJECT
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER OPERATOR
- ALTER PACKAGE
- ALTER PROCEDURE
- ALTER PUBLICATION
- ALTER RESOURCE LABEL
- ALTER RESOURCE POOL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER RULE
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SUBSCRIPTION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER SYSTEM SET
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLE SUBPARTITION
- ALTER TABLESPACE
- ALTER TEXT SEARCH CONFIGURATION
- ALTER TEXT SEARCH DICTIONARY
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER USER MAPPING
- ALTER VIEW
- ANALYZE | ANALYSE
- BEGIN
- CALL
- CHECKPOINT
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- COMMIT | END
- COMMIT PREPARED
- CONNECT BY
- COPY
- CREATE AGGREGATE
- CREATE AUDIT POLICY
- CREATE CAST
- CREATE CLIENT MASTER KEY
- CREATE COLUMN ENCRYPTION KEY
- CREATE DATABASE
- CREATE DATA SOURCE
- CREATE DIRECTORY
- CREATE EVENT
- CREATE EVENT TRIGGER
- CREATE EXTENSION
- CREATE FOREIGN DATA WRAPPER
- CREATE FOREIGN TABLE
- CREATE FUNCTION
- CREATE GROUP
- CREATE INCREMENTAL MATERIALIZED VIEW
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MASKING POLICY
- CREATE MATERIALIZED VIEW
- CREATE MODEL
- CREATE OPERATOR
- CREATE PACKAGE
- CREATE PROCEDURE
- CREATE PUBLICATION
- CREATE RESOURCE LABEL
- CREATE RESOURCE POOL
- CREATE ROLE
- CREATE ROW LEVEL SECURITY POLICY
- CREATE RULE
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SUBSCRIPTION
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TABLESPACE
- CREATE TABLE SUBPARTITION
- CREATE TEXT SEARCH CONFIGURATION
- CREATE TEXT SEARCH DICTIONARY
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE USER MAPPING
- CREATE VIEW
- CREATE WEAK PASSWORD DICTIONARY
- CURSOR
- DEALLOCATE
- DECLARE
- DELETE
- DELIMITER
- DO
- DROP AGGREGATE
- DROP AUDIT POLICY
- DROP CAST
- DROP CLIENT MASTER KEY
- DROP COLUMN ENCRYPTION KEY
- DROP DATABASE
- DROP DATA SOURCE
- DROP DIRECTORY
- DROP EVENT
- DROP EVENT TRIGGER
- DROP EXTENSION
- DROP FOREIGN DATA WRAPPER
- DROP FOREIGN TABLE
- DROP FUNCTION
- DROP GLOBAL CONFIGURATION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP MODEL
- DROP OPERATOR
- DROP OWNED
- DROP PACKAGE
- DROP PROCEDURE
- DROP PUBLICATION
- DROP RESOURCE LABEL
- DROP RESOURCE POOL
- DROP ROLE
- DROP ROW LEVEL SECURITY POLICY
- DROP RULE
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP SUBSCRIPTION
- DROP SYNONYM
- DROP TABLE
- DROP TABLESPACE
- DROP TEXT SEARCH CONFIGURATION
- DROP TEXT SEARCH DICTIONARY
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP USER MAPPING
- DROP VIEW
- DROP WEAK PASSWORD DICTIONARY
- EXECUTE
- EXECUTE DIRECT
- EXPLAIN
- EXPLAIN PLAN
- FETCH
- GRANT
- INSERT
- LOCK
- MERGE INTO
- MOVE
- PREDICT BY
- PREPARE
- PREPARE TRANSACTION
- PURGE
- REASSIGN OWNED
- REFRESH INCREMENTAL MATERIALIZED VIEW
- REFRESH MATERIALIZED VIEW
- REINDEX
- RELEASE SAVEPOINT
- RESET
- REVOKE
- ROLLBACK
- ROLLBACK PREPARED
- ROLLBACK TO SAVEPOINT
- SAVEPOINT
- SELECT
- SELECT INTO
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SET TRANSACTION
- SHOW
- SHOW EVENTS
- SHRINK
- SHUTDOWN
- SNAPSHOT
- START TRANSACTION
- TIMECAPSULE TABLE
- TRUNCATE
- UPDATE
- VACUUM
- VALUES
- SQL Reference
- MogDB SQL
- SQL Syntax Format
- Keywords
- Constant and Macro
- Expressions
- Type Conversion
- Full Text Search
- System Operation
- Controlling Transactions
- DDL Syntax Overview
- DML Syntax Overview
- DCL Syntax Overview
- Subquery
- DCF
- LLVM
- Alias
- Lock
- Transaction
- Ordinary Table
- Partitioned Table
- Index
- Constraints
- Cursors
- Anonymous Block
- Trigger
- INSERT_RIGHT_REF_DEFAULT_VALUE
- Appendix
- GUC Parameters
- GUC Parameter Usage
- GUC Parameter List
- File Location
- Connection and Authentication
- Resource Consumption
- Write Ahead Log
- HA Replication
- Memory Table
- Query Planning
- Error Reporting and Logging
- Alarm Detection
- Statistics During the Database Running
- Load Management
- Automatic Vacuuming
- Default Settings of Client Connection
- Lock Management
- Version and Platform Compatibility
- Faut Tolerance
- Connection Pool Parameters
- MogDB Transaction
- Replication Parameters of Two Database Instances
- Developer Options
- Auditing
- CM Parameters
- Backend Compression
- Upgrade Parameters
- Miscellaneous Parameters
- Wait Events
- Query
- System Performance Snapshot
- Security Configuration
- Global Temporary Table
- HyperLogLog
- Scheduled Task
- Thread Pool
- User-defined Functions
- Backup and Restoration
- DCF Parameters Settings
- Flashback
- Rollback Parameters
- Reserved Parameters
- AI Features
- Global SysCache Parameters
- Parameters Related to Efficient Data Compression Algorithms
- Writer Statement Parameters Supported by Standby Servers
- Appendix
- Schema
- Information Schema
- DBE_PERF
- OS
- Instance
- Memory
- File
- Object
- STAT_USER_TABLES
- SUMMARY_STAT_USER_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_USER_INDEXES
- SUMMARY_STAT_USER_INDEXES
- GLOBAL_STAT_USER_INDEXES
- STAT_SYS_TABLES
- SUMMARY_STAT_SYS_TABLES
- GLOBAL_STAT_SYS_TABLES
- STAT_SYS_INDEXES
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- STAT_ALL_TABLES
- SUMMARY_STAT_ALL_TABLES
- GLOBAL_STAT_ALL_TABLES
- STAT_ALL_INDEXES
- SUMMARY_STAT_ALL_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- STAT_DATABASE
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_DATABASE
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_DATABASE_CONFLICTS
- STAT_XACT_ALL_TABLES
- SUMMARY_STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_BAD_BLOCK
- GLOBAL_STAT_BAD_BLOCK
- STAT_USER_FUNCTIONS
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_USER_FUNCTIONS
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- GAUSS 00701 - GAUSS 00800
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- GAUSS 01401 - GAUSS 01500
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- GAUSS 01601 - GAUSS 01700
- GAUSS 01701 - GAUSS 01800
- GAUSS 01801 - GAUSS 01900
- GAUSS 01901 - GAUSS 02000
- GAUSS 02001 - GAUSS 02100
- GAUSS 02101 - GAUSS 02200
- GAUSS 02201 - GAUSS 02300
- GAUSS 02301 - GAUSS 02400
- GAUSS 02401 - GAUSS 02500
- GAUSS 02501 - GAUSS 02600
- GAUSS 02601 - GAUSS 02700
- GAUSS 02701 - GAUSS 02800
- GAUSS 02801 - GAUSS 02900
- GAUSS 02901 - GAUSS 03000
- GAUSS 03001 - GAUSS 03100
- GAUSS 03101 - GAUSS 03200
- GAUSS 03201 - GAUSS 03300
- GAUSS 03301 - GAUSS 03400
- GAUSS 03401 - GAUSS 03500
- GAUSS 03501 - GAUSS 03600
- GAUSS 03601 - GAUSS 03700
- GAUSS 03701 - GAUSS 03800
- GAUSS 03801 - GAUSS 03900
- GAUSS 03901 - GAUSS 04000
- GAUSS 04001 - GAUSS 04100
- GAUSS 04101 - GAUSS 04200
- GAUSS 04201 - GAUSS 04300
- GAUSS 04301 - GAUSS 04400
- GAUSS 04401 - GAUSS 04500
- GAUSS 04501 - GAUSS 04600
- GAUSS 04601 - GAUSS 04700
- GAUSS 04701 - GAUSS 04800
- GAUSS 04801 - GAUSS 04900
- GAUSS 04901 - GAUSS 05000
- GAUSS 05001 - GAUSS 05100
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- GAUSS 05201 - GAUSS 05300
- GAUSS 05301 - GAUSS 05400
- GAUSS 05401 - GAUSS 05500
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- GAUSS 05601 - GAUSS 05700
- GAUSS 05701 - GAUSS 05800
- GAUSS 05801 - GAUSS 05900
- GAUSS 05901 - GAUSS 06000
- GAUSS 06001 - GAUSS 06100
- GAUSS 06101 - GAUSS 06200
- GAUSS 06201 - GAUSS 06300
- GAUSS 06301 - GAUSS 06400
- GAUSS 06401 - GAUSS 06500
- GAUSS 06501 - GAUSS 06600
- GAUSS 06601 - GAUSS 06700
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- GAUSS 06801 - GAUSS 06900
- GAUSS 06901 - GAUSS 07000
- GAUSS 07001 - GAUSS 07100
- GAUSS 07101 - GAUSS 07200
- GAUSS 07201 - GAUSS 07300
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- A Query Error Is Reported Due to Predicate Pushdown
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- Mogeaver
Keywords(1)
The SQL contains reserved and non-reserved words. Standards require that reserved keywords not be used as other identifiers. Non-reserved keywords have special meanings only in a specific environment and can be used as identifiers in other environments.
The naming rules for identifiers are as follows:
-
An identifier name can only contain letters, underscores, digits (0-9), and dollar signs ($).
-
An identifier name must start with a letter (a to z) or an underscore (_).
NOTE:- The naming rules are recommended but not mandatory.
- In special cases, double quotation marks can be used to avoid special character errors.
Table 1 SQL keywords
| Keyword | MogDB |
|---|---|
| ABORT | Non-reserved |
| ABS | N/A |
| ABSOLUTE | Non-reserved |
| ACCESS | Non-reserved |
| ACCOUNT | Non-reserved |
| ACTION | Non-reserved |
| ADA | N/A |
| ADD | Non-reserved |
| ADMIN | Non-reserved |
| AFTER | Non-reserved |
| AGGREGATE | Non-reserved |
| ALGORITHM | Non-reserved |
| ALIAS | N/A |
| ALL | Reserved |
| ALLOCATE | N/A |
| ALSO | Non-reserved |
| ALTER | Non-reserved |
| ALWAYS | Non-reserved |
| ANALYSE | Reserved |
| ANALYZE | Reserved |
| AND | Reserved |
| ANY | Reserved |
| APP | Non-reserved |
| ARE | N/A |
| ARRAY | Reserved |
| AS | Reserved |
| ASC | Reserved |
| ASENSITIVE | N/A |
| ASSERTION | Non-reserved |
| ASSIGNMENT | Non-reserved |
| ASYMMETRIC | Reserved |
| AT | Non-reserved |
| ATOMIC | N/A |
| ATTRIBUTE | Non-reserved |
| AUTHID | Reserved |
| AUTHORIZATION | Reserved (functions and types allowed) |
| AUTOEXTEND | Non-reserved |
| AUTOMAPPED | Non-reserved |
| AVG | N/A |
| BACKWARD | Non-reserved |
| BARRIER | Non-reserved |
| BEFORE | Non-reserved |
| BEGIN | Non-reserved |
| BEGIN_NON_ANOYBLOCK | Non-reserved |
| BETWEEN | Non-reserved (excluding functions and types) |
| BIGINT | Non-reserved (excluding functions and types) |
| BINARY | Reserved (functions and types allowed) |
| BINARY_DOUBLE | Non-reserved (excluding functions and types) |
| BINARY_INTEGER | Non-reserved (excluding functions and types) |
| BIT | Non-reserved (excluding functions and types) |
| BITVAR | N/A |
| BIT_LENGTH | N/A |
| BLOB | Non-reserved |
| BOOLEAN | Non-reserved (excluding functions and types) |
| BOTH | Reserved |
| BUCKETS | Reserved |
| BREADTH | N/A |
| BY | Non-reserved |
| BYTEAWITHOUTODER | Non-reserved (excluding functions and types) |
| BYTEAWITHOUTORDERWITHEQUAL | Non-reserved (excluding functions and types) |
| C | N/A |
| CACHE | Non-reserved |
| CALL | Non-reserved |
| CALLED | Non-reserved |
| CARDINALITY | N/A |
| CASCADE | Non-reserved |
| CASCADED | Non-reserved |
| CASE | Reserved |
| CAST | Reserved |
| CATALOG | Non-reserved |
| CATALOG_NAME | N/A |
| CHAIN | Non-reserved |
| CHAR | Non-reserved (excluding functions and types) |
| CHARACTER | Non-reserved (excluding functions and types) |
| CHARACTERISTICS | Non-reserved |
| CHARACTER_LENGTH | N/A |
| CHARACTER_SET_CATALOG | N/A |
| CHARACTER_SET_NAME | N/A |
| CHARACTER_SET_SCHEMA | N/A |
| CHAR_LENGTH | N/A |
| CHECK | Reserved |
| CHECKED | N/A |
| CHECKPOINT | Non-reserved |
| CLASS | Non-reserved |
| CLEAN | Non-reserved |
| CLASS_ORIGIN | N/A |
| CLIENT | Non-reserved |
| CLIENT_MASTER_KEY | Non-reserved |
| CLIENT_MASTER_KEYS | Non-reserved |
| CLOB | Non-reserved |
| CLOSE | Non-reserved |
| CLUSTER | Non-reserved |
| COALESCE | Non-reserved (excluding functions and types) |
| COBOL | N/A |
| COLLATE | Reserved |
| COLLATION | Reserved (functions and types allowed) |
| COLLATION_CATALOG | N/A |
| COLLATION_NAME | N/A |
| COLLATION_SCHEMA | N/A |
| COLUMN | Reserved |
| COLUMN_ENCRYPTION_KEY | Non-reserved |
| COLUMN_ENCRYPTION_KEYS | Non-reserved |
| COLUMN_NAME | N/A |
| COMPACT | Reserved (functions and types allowed) |
| COMPATIBLE_ILLEGAL_CHARS | Non-reserved |
| COMMAND_FUNCTION | N/A |
| COMPLETE | Non-reserved |
| COMMAND_FUNCTION_CODE | N/A |
| COMMENT | Non-reserved |
| COMMENTS | Non-reserved |
| COMMIT | Non-reserved |
| COMMITTED | Non-reserved |
| COMPRESS | Non-reserved |
| COMPLETION | N/A |
| CONCURRENTLY | Reserved (functions and types allowed) |
| CONDITION | N/A |
| CONDITION_NUMBER | N/A |
| CONFIGURATION | Non-reserved |
| CONNECT | N/A |
| CONNECTION | Non-reserved |
| CONNECTION_NAME | N/A |
| CONSTRAINT | Reserved |
| CONSTRAINTS | Non-reserved |
| CONSTRAINT_CATALOG | N/A |
| CONSTRAINT_NAME | N/A |
| CONSTRAINT_SCHEMA | N/A |
| CONSTRUCTOR | N/A |
| CONTAINS | N/A |
| CONTENT | Non-reserved |
| CONTINUE | Non-reserved |
| CONVERSION | Non-reserved |
| CONVERT | N/A |
| COPY | Non-reserved |
| CORRESPONDING | N/A |
| COST | Non-reserved |
| COUNT | N/A |
| CREATE | Reserved |
| CROSS | Reserved (functions and types allowed) |
| CSV | Non-reserved |
| CUBE | Non-reserved |
| CURRENT | Non-reserved |
| CURRENT_CATALOG | Reserved |
| CURRENT_DATE | Reserved |
| CURRENT_PATH | N/A |
| CURRENT_ROLE | Reserved |
| CURRENT_SCHEMA | Reserved (functions and types allowed) |
| CURRENT_TIME | Reserved |
| CURRENT_TIMESTAMP | Reserved |
| CURRENT_USER | Reserved |
| CURSOR | Non-reserved |
| CURSOR_NAME | N/A |
| CYCLE | Non-reserved |
| DATA | Non-reserved |
| DATABASE | Non-reserved |
| DATAFILE | Non-reserved |
| DATE_FORMAT | Non-reserved |
| DATATYPE_CL | Non-reserved |
| DATE | Non-reserved (excluding functions and types) |
| DELTAMERGE | Reserved (functions and types allowed) |
| DATETIME_INTERVAL_CODE | N/A |
| DATETIME_INTERVAL_PRECISION | N/A |
| DAY | Non-reserved |
| DBCOMPATIBILITY | Non-reserved |
| DEALLOCATE | Non-reserved |
| DEC | Non-reserved (excluding functions and types) |
| DECIMAL | Non-reserved (excluding functions and types) |
| DECLARE | Non-reserved |
| DECODE | Non-reserved (excluding functions and types) |
| DEFAULT | Reserved |
| DEFAULTS | Non-reserved |
| DEFERRABLE | Reserved |
| DEFERRED | Non-reserved |
| DEFINED | N/A |
| DEFINER | Non-reserved |
| DELETE | Non-reserved |
| DELIMITER | Non-reserved |
| DELIMITERS | Non-reserved |
| DELTA | Non-reserved |
| DEPTH | N/A |
| DEREF | N/A |
| DESC | Reserved |
| DESCRIBE | N/A |
| DESCRIPTOR | N/A |
| DESTROY | N/A |
| DESTRUCTOR | N/A |
| DETERMINISTIC | Non-reserved |
| DIAGNOSTICS | N/A |
| DICTIONARY | Non-reserved |
| DIRECT | Non-reserved |
| DIRECTORY | Non-reserved |
| DISABLE | Non-reserved |
| DISCARD | Non-reserved |
| DISCONNECT | Non-reserved |
| DISPATCH | N/A |
| DISTINCT | Reserved |
| DISTRIBUTE | Non-reserved |
| DISTRIBUTION | Non-reserved |
| DO | Reserved |
| DOCUMENT | Non-reserved |
| DOMAIN | Non-reserved |
| DOUBLE | Non-reserved |
| DROP | Non-reserved |
| DUPLICATE | Non-reserved |
| DYNAMIC | N/A |
| DYNAMIC_FUNCTION | N/A |
| DYNAMIC_FUNCTION_CODE | N/A |
| EACH | Non-reserved |
| ELSE | Reserved |
| ELASTIC | Non-reserved |
| ENABLE | Non-reserved |
| ENCODING | Non-reserved |
| ENCRYPTED | Non-reserved |
| ENCRYPTED_VALUE | Non-reserved |
| ENCRYPTION | Non-reserved |
| ENCRYPTION_TYPE | Non-reserved |
| END | Reserved |
| END-EXEC | N/A |
| ENFORCED | Non-reserved |
| ENUM | Non-reserved |
| EOL | Non-reserved |
| ERRORS | Non-reserved |
| EQUALS | N/A |
| ESCAPE | Non-reserved |
| ESCAPING | Non-reserved |
| EVERY | Non-reserved |
| EXCEPT | Reserved |
| EXCEPTION | N/A |
| EXCHANGE | Non-reserved |
| EXCLUDE | Non-reserved |
| EXCLUDED | Reserved |
| EXCLUDING | Non-reserved |
| EXCLUSIVE | Non-reserved |
| EXEC | N/A |
| EXECUTE | Non-reserved |
| EXISTING | N/A |
| EXISTS | Non-reserved (excluding functions and types) |
| EXPIRED_P | Non-reserved |
| EXPLAIN | Non-reserved |
| EXTENSION | Non-reserved |
| EXTERNAL | Non-reserved |
| EXTRACT | Non-reserved (excluding functions and types) |
| FALSE | Reserved |
| FAMILY | Non-reserved |
| FAST | Non-reserved |
| FETCH | Reserved |
| FENCED | Reserved |
| FILEHEADER | Non-reserved |
| FINAL | N/A |
| FIRST | Non-reserved |
| FIXED | Non-reserved |
| FILL_MISSING_FIELDS | Non-reserved |
| FLOAT | Non-reserved (excluding functions and types) |
| FOLLOWING | Non-reserved |
| FOR | Reserved |
| FORCE | Non-reserved |
| FOREIGN | Reserved |
| FORMATTER | Non-reserved |
| FORTRAN | N/A |
| FORWARD | Non-reserved |
| FOUND | N/A |
| FREE | N/A |
| FREEZE | Reserved (functions and types allowed) |
| FROM | Reserved |
| FULL | Reserved (functions and types allowed) |
| FUNCTION | Non-reserved |
| FUNCTIONS | Non-reserved |
| G | N/A |
| GENERAL | N/A |
| GENERATED | N/A |
| GET | N/A |
| GLOBAL | Non-reserved |
| GO | N/A |
| GOTO | N/A |
| GRANT | Reserved |
| GRANTED | Non-reserved |
| GREATEST | Non-reserved (excluding functions and types) |
| GROUP | Reserved |
| GROUPING | Non-reserved (excluding functions and types) |
| HANDLER | Non-reserved |
| HAVING | Reserved |
| HDFSDIRECTORY | Reserved (functions and types allowed) |
| HEADER | Non-reserved |
| HIERARCHY | N/A |
| HOLD | Non-reserved |
| HOST | N/A |
| HOUR | Non-reserved |
| IDENTIFIED | Non-reserved |
| IDENTITY | Non-reserved |
| IF | Non-reserved |
| IGNORE | N/A |
| IGNORE_EXTRA_DATA | Non-reserved |
| ILIKE | Reserved (functions and types allowed) |
| IMMEDIATE | Non-reserved |
| IMMUTABLE | Non-reserved |
| IMPLEMENTATION | N/A |
| IMPLICIT | Non-reserved |
| IN | Reserved |
| INTERNAL | Non-reserved |
| INCLUDING | Non-reserved |
| INCREMENT | Non-reserved |
| INDEX | Non-reserved |
| INDEXES | Non-reserved |
| INDICATOR | N/A |
| INFIX | N/A |
| INHERIT | Non-reserved |
| INHERITS | Non-reserved |
| INITIAL | Non-reserved |
| INITIALIZE | N/A |
| INITIALLY | Reserved |
| INITRANS | Non-reserved |
| INLINE | Non-reserved |
| INNER | Reserved (functions and types allowed) |
| INOUT | Non-reserved (excluding functions and types) |
| INPUT | Non-reserved |
| INSENSITIVE | Non-reserved |
| INSERT | Non-reserved |
| INSTANCE | N/A |
| INSTANTIABLE | N/A |
| INSTEAD | Non-reserved |
| INT | Non-reserved (excluding functions and types) |
| INTEGER | Non-reserved (excluding functions and types) |
| INTERSECT | Reserved |
| INTERVAL | Non-reserved (excluding functions and types) |
| INTO | Reserved |
| INVOKER | Non-reserved |
| IS | Reserved |
| ISNULL | Non-reserved |
| ISOLATION | Non-reserved |
| ITERATE | N/A |
| JOIN | Reserved (functions and types allowed) |
| K | N/A |
| KEY | Non-reserved |
| KEY_PATH | Non-reserved |
| KEY_MEMBER | N/A |
| KEY_STORE | Non-reserved |
| KEY_TYPE | N/A |
| KILL | Non-reserved |
| LABEL | Non-reserved |
| LANGUAGE | Non-reserved |
| LARGE | Non-reserved |
| LAST | Non-reserved |
| LATERAL | N/A |
| LC_COLLATE | Non-reserved |
| LC_CTYPE | Non-reserved |
| LEADING | Reserved |
| LEAKPROOF | Non-reserved |
| LEAST | Non-reserved (excluding functions and types) |
| LEFT | Reserved (functions and types allowed) |
| LENGTH | N/A |
| LESS | Reserved |
| LEVEL | Non-reserved |
| LIKE | Reserved (functions and types allowed) |
| LIMIT | Reserved |
| LISTEN | Non-reserved |
| LOAD | Non-reserved |