v2.1
- About MogDB
- Quick Start
- MogDB Playground
- Container-based MogDB Installation
- Installation on a Single Node
- MogDB Access
- Use CLI to Access MogDB
- Use GUI to Access MogDB
- Use Middleware to Access MogDB
- Use Programming Language to Access MogDB
- Using Sample Dataset Mogila
- Characteristic Description
- High Performance
- High Availability (HA)
- Maintainability
- 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
- 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
- Application Development Interfaces
- AI Capabilities
- Installation Guide
- Container Installation
- Simplified Installation Process
- Standard Installation
- Manual Installation
- Administrator Guide
- 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
- Data Security Maintenance Suggestions
- Log Reference
- Primary and Standby Management
- MOT Engine
- Introducing MOT
- Using MOT
- Concepts of MOT
- Appendix
- Column-store Tables Management
- Backup and Restoration
- Importing and Exporting Data
- Importing Data
- Exporting Data
- Upgrade Guide
- Routine Maintenance
- AI Features Guide
- Overview
- Predictor: AI Query Time Forecasting
- X-Tuner: Parameter Optimization and Diagnosis
- SQLdiag: Slow SQL Discovery
- A-Detection: Status Monitoring
- Index-advisor: Index Recommendation
- DeepSQL
- AI-Native Database (DB4AI)
- Security Guide
- Developer Guide
- Application Development Guide
- Development Specifications
- Development Based on JDBC
- Overview
- JDBC Package, Driver Class, and Environment Class
- Development Process
- Loading the Driver
- Connecting to a Database
- Connecting to the Database (Using SSL)
- 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
- 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
- Development Based on ODBC
- Development Based on libpq
- Development Based on libpq
- libpq API Reference
- Database Connection Control Functions
- Database Statement Execution Functions
- Functions for Asynchronous Command Processing
- Functions for Canceling Queries in Progress
- Example
- Connection Characters
- Psycopg-Based Development
- Commissioning
- Appendices
- Stored Procedure
- User Defined Functions
- PL/pgSQL-SQL Procedural Language
- Scheduled Jobs
- Autonomous Transaction
- Logical Replication
- Logical Decoding
- Foreign Data Wrapper
- Materialized View
- Materialized View Overview
- Full Materialized View
- Incremental Materialized View
- Resource Load Management
- Overview
- Resource Management Preparation
- Application Development Guide
- Performance Tuning Guide
- System Optimization
- SQL Optimization
- WDR Snapshot Schema
- TPCC Performance Tuning Guide
- Reference Guide
- System Catalogs and System Views
- Overview of System Catalogs and System Views
- System Catalogs
- 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_ENCRYPTED_COLUMNS
- GS_ENCRYPTED_PROC
- GS_GLOBAL_CHAIN
- GS_MASKING_POLICY
- GS_MASKING_POLICY_ACTIONS
- GS_MASKING_POLICY_FILTERS
- GS_MATVIEW
- GS_MATVIEW_DEPENDENCY
- GS_OPT_MODEL
- GS_POLICY_LABEL
- GS_RECYCLEBIN
- GS_TXN_SNAPSHOT
- GS_WLM_INSTANCE_HISTORY
- GS_WLM_OPERATOR_INFO
- GS_WLM_PLAN_ENCODING_TABLE
- GS_WLM_PLAN_OPERATOR_INFO
- GS_WLM_EC_OPERATOR_INFO
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_APP_WORKLOADGROUP_MAPPING
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTHID
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- 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_EXTENSION
- PG_EXTENSION_DATA_SOURCE
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_FOREIGN_TABLE
- 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_RANGE
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_RLSPOLICY
- PG_SECLABEL
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_STATISTIC
- PG_STATISTIC_EXT
- 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
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- System Views
- GET_GLOBAL_PREPARED_XACTS
- GS_AUDITING
- GS_AUDITING_ACCESS
- GS_AUDITING_PRIVILEGE
- GS_CLUSTER_RESOURCE_INFO
- GS_INSTANCE_TIME
- GS_LABELS
- GS_MASKING
- GS_MATVIEWS
- GS_SESSION_MEMORY
- GS_SESSION_CPU_STATISTICS
- GS_SESSION_MEMORY_CONTEXT
- GS_SESSION_MEMORY_DETAIL
- GS_SESSION_MEMORY_STATISTICS
- GS_SQL_COUNT
- GS_WLM_CGROUP_INFO
- GS_WLM_PLAN_OPERATOR_HISTORY
- GS_WLM_REBUILD_USER_RESOURCE_POOL
- GS_WLM_RESOURCE_POOL
- GS_WLM_USER_INFO
- GS_STAT_SESSION_CU
- GS_TOTAL_MEMORY_DETAIL
- 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_RELSTATS
- PG_GTT_STATS
- PG_GTT_ATTACHED_PIDS
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_REPLICATION_SLOTS
- PG_RLSPOLICIES
- PG_ROLES
- PG_RULES
- PG_SECLABELS
- PG_SETTINGS
- PG_SHADOW
- PG_STATS
- PG_STAT_ACTIVITY
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_REPLICATION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_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_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
- PLAN_TABLE
- GS_FILE_STAT
- GS_OS_RUN_INFO
- GS_REDO_STAT
- GS_SESSION_STAT
- GS_SESSION_TIME
- GS_THREAD_MEMORY_CONTEXT
- 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
- 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
- Statistics Information Functions
- 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
- Obsolete Functions
- Supported Data Types
- Numeric Types
- Monetary Types
- Boolean Types
- Enumerated Types
- Character Types
- Binary Types
- Date/Time Types
- Geometric
- Network Address Types
- Bit String Types
- Text Search Types
- UUID
- JSON/JSONB Types
- HLL
- Array Types
- Range
- OID Types
- Pseudo-Types
- Data Types Supported by Column-store Tables
- XML Types
- Data Type Used by the Ledger Database
- SQL Syntax
- ABORT
- ALTER AGGREGATE
- ALTER AUDIT POLICY
- ALTER DATABASE
- ALTER DATA SOURCE
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER EXTENSION
- ALTER FOREIGN TABLE
- ALTER FUNCTION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER LARGE OBJECT
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER OPERATOR
- ALTER RESOURCE LABEL
- ALTER RESOURCE POOL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER RULE
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- 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 EXTENSION
- 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 ROW LEVEL SECURITY POLICY
- CREATE PROCEDURE
- CREATE RESOURCE LABEL
- CREATE RESOURCE POOL
- CREATE ROLE
- CREATE RULE
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TABLE SUBPARTITION
- CREATE TABLESPACE
- 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
- DO
- DROP AGGREGATE
- DROP AUDIT POLICY
- DROP CAST
- DROP CLIENT MASTER KEY
- DROP COLUMN ENCRYPTION KEY
- DROP DATABASE
- DROP DATA SOURCE
- DROP DIRECTORY
- DROP EXTENSION
- DROP FOREIGN TABLE
- DROP FUNCTION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP MODEL
- DROP OPERATOR
- DROP OWNED
- DROP PACKAGE
- DROP PROCEDURE
- DROP RESOURCE LABEL
- DROP RESOURCE POOL
- DROP ROW LEVEL SECURITY POLICY
- DROP ROLE
- DROP RULE
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- 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
- MOVE
- MERGE INTO
- 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
- SHUTDOWN
- SNAPSHOT
- START TRANSACTION
- TIMECAPSULE TABLE
- TRUNCATE
- UPDATE
- VACUUM
- VALUES
- SQL Reference
- MogDB SQL
- Keywords
- Constant and Macro
- Expressions
- Type Conversion
- Full Text Search
- Introduction
- Tables and Indexes
- Controlling Text Search
- Additional Features
- Parser
- Dictionaries
- Configuration Examples
- Testing and Debugging Text Search
- Limitations
- System Operation
- Controlling Transactions
- DDL Syntax Overview
- DML Syntax Overview
- DCL Syntax Overview
- Appendix
- GUC Parameters
- GUC Parameter Usage
- File Location
- Connection and Authentication
- Resource Consumption
- Parallel Import
- 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
- Developer Options
- Auditing
- 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
- Undo
- DCF Parameters Settings
- Flashback
- Rollback Parameters
- Reserved Parameters
- AI Features
- Appendix
- Schema
- Information Schema
- DBE_PERF
- Overview
- 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
- Workload
- Session/Thread
- SESSION_STAT
- GLOBAL_SESSION_STAT
- SESSION_TIME
- GLOBAL_SESSION_TIME
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY
- SESSION_MEMORY_DETAIL
- GLOBAL_SESSION_MEMORY_DETAIL
- SESSION_STAT_ACTIVITY
- GLOBAL_SESSION_STAT_ACTIVITY
- THREAD_WAIT_STATUS
- GLOBAL_THREAD_WAIT_STATUS
- LOCAL_THREADPOOL_STATUS
- GLOBAL_THREADPOOL_STATUS
- SESSION_CPU_RUNTIME
- SESSION_MEMORY_RUNTIME
- STATEMENT_IOSTAT_COMPLEX_RUNTIME
- LOCAL_ACTIVE_SESSION
- Transaction
- Query
- STATEMENT
- SUMMARY_STATEMENT
- STATEMENT_COUNT
- GLOBAL_STATEMENT_COUNT
- SUMMARY_STATEMENT_COUNT
- GLOBAL_STATEMENT_COMPLEX_HISTORY
- GLOBAL_STATEMENT_COMPLEX_HISTORY_TABLE
- GLOBAL_STATEMENT_COMPLEX_RUNTIME
- STATEMENT_RESPONSETIME_PERCENTILE
- STATEMENT_USER_COMPLEX_HISTORY
- STATEMENT_COMPLEX_RUNTIME
- STATEMENT_COMPLEX_HISTORY_TABLE
- STATEMENT_COMPLEX_HISTORY
- STATEMENT_WLMSTAT_COMPLEX_RUNTIME
- STATEMENT_HISTORY
- Cache/IO
- STATIO_USER_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_TABLES
- STATIO_USER_INDEXES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_INDEXES
- STATIO_USER_SEQUENCES
- SUMMARY_STATIO_USER_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_SYS_TABLES
- SUMMARY_STATIO_SYS_TABLES
- GLOBAL_STATIO_SYS_TABLES
- STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- STATIO_SYS_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_SYS_SEQUENCES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_TABLES
- GLOBAL_STATIO_ALL_TABLES
- STATIO_ALL_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- GLOBAL_STATIO_ALL_INDEXES
- STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_ALL_SEQUENCES
- GLOBAL_STATIO_ALL_SEQUENCES
- GLOBAL_STAT_DB_CU
- GLOBAL_STAT_SESSION_CU
- Utility
- REPLICATION_STAT
- GLOBAL_REPLICATION_STAT
- REPLICATION_SLOTS
- GLOBAL_REPLICATION_SLOTS
- BGWRITER_STAT
- GLOBAL_BGWRITER_STAT
- GLOBAL_CKPT_STATUS
- GLOBAL_DOUBLE_WRITE_STATUS
- GLOBAL_PAGEWRITER_STATUS
- GLOBAL_RECORD_RESET_TIME
- GLOBAL_REDO_STATUS
- GLOBAL_RECOVERY_STATUS
- CLASS_VITAL_INFO
- USER_LOGIN
- SUMMARY_USER_LOGIN
- GLOBAL_GET_BGWRITER_STATUS
- GLOBAL_SINGLE_FLUSH_DW_STATUS
- GLOBAL_CANDIDATE_STATUS
- Lock
- Wait Events
- Configuration
- Operator
- Workload Manager
- Global Plancache
- RTO
- Appendix
- DBE_PLDEBUGGER Schema
- Overview
- DBE_PLDEBUGGER.turn_on
- DBE_PLDEBUGGER.turn_off
- DBE_PLDEBUGGER.local_debug_server_info
- DBE_PLDEBUGGER.attach
- DBE_PLDEBUGGER.next
- DBE_PLDEBUGGER.continue
- DBE_PLDEBUGGER.abort
- DBE_PLDEBUGGER.print_var
- DBE_PLDEBUGGER.info_code
- DBE_PLDEBUGGER.step
- DBE_PLDEBUGGER.add_breakpoint
- DBE_PLDEBUGGER.delete_breakpoint
- DBE_PLDEBUGGER.info_breakpoints
- DBE_PLDEBUGGER.backtrace
- DBE_PLDEBUGGER.finish
- DBE_PLDEBUGGER.set_var
- DB4AI Schema
- Tool Reference
- Tool Overview
- Client Tool
- Server Tools
- Tools Used in the Internal System
- gaussdb
- gs_backup
- gs_basebackup
- gs_ctl
- gs_initdb
- gs_install
- gs_install_plugin
- gs_install_plugin_local
- gs_postuninstall
- gs_preinstall
- gs_sshexkey
- gs_tar
- gs_uninstall
- gs_upgradectl
- gs_expansion
- gs_dropnode
- gs_probackup
- gstrace
- kdb5_util
- kadmin.local
- kinit
- klist
- krb5kdc
- kdestroy
- pg_config
- pg_controldata
- pg_recvlogical
- pg_resetxlog
- pg_archivecleanup
- pssh
- pscp
- transfer.py
- FAQ
- System Catalogs and Views Supported by gs_collector
- Extension Reference
- Error Code Reference
- Description of SQL Error Codes
- Third-Party Library Error Codes
- GAUSS-00001 - GAUSS-00100
- GAUSS-00101 - GAUSS-00200
- GAUSS 00201 - GAUSS 00300
- GAUSS 00301 - GAUSS 00400
- GAUSS 00401 - GAUSS 00500
- GAUSS 00501 - GAUSS 00600
- GAUSS 00601 - GAUSS 00700
- GAUSS 00701 - GAUSS 00800
- GAUSS 00801 - GAUSS 00900
- GAUSS 00901 - GAUSS 01000
- GAUSS 01001 - GAUSS 01100
- GAUSS 01101 - GAUSS 01200
- GAUSS 01201 - GAUSS 01300
- GAUSS 01301 - GAUSS 01400
- GAUSS 01401 - GAUSS 01500
- GAUSS 01501 - GAUSS 01600
- 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
- GAUSS 05101 - GAUSS 05200
- GAUSS 05201 - GAUSS 05300
- GAUSS 05301 - GAUSS 05400
- GAUSS 05401 - GAUSS 05500
- GAUSS 05501 - GAUSS 05600
- 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
- GAUSS 06701 - GAUSS 06800
- GAUSS 06801 - GAUSS 06900
- GAUSS 06901 - GAUSS 07000
- GAUSS 07001 - GAUSS 07100
- GAUSS 07101 - GAUSS 07200
- GAUSS 07201 - GAUSS 07300
- GAUSS 07301 - GAUSS 07400
- GAUSS 07401 - GAUSS 07480
- GAUSS 50000 - GAUSS 50999
- GAUSS 51000 - GAUSS 51999
- GAUSS 52000 - GAUSS 52999
- GAUSS 53000 - GAUSS 53699
- Error Log Reference
- System Catalogs and System Views
- Common Faults and Identification Guide
- Common Fault Locating Methods
- Common Fault Locating Cases
- Core Fault Locating
- Permission/Session/Data Type Fault Location
- Service/High Availability/Concurrency Fault Location
- Table/Partition Table Fault Location
- File System/Disk/Memory Fault Location
- After You Run the du Command to Query Data File Size In the XFS File System, the Query Result Is Greater than the Actual File Size
- File Is Damaged in the XFS File System
- Insufficient Memory
- "Error:No space left on device" Is Displayed
- When the TPC-C is running and a disk to be injected is full, the TPC-C stops responding
- Disk Space Usage Reaches the Threshold and the Database Becomes Read-only
- SQL Fault Location
- Index Fault Location
- Source Code Parsing
- FAQs
- Glossary
Other System Functions
The MogDB built-in functions and operators are inherited from the open-source PG. For details about the following functions, see the official PG documents.
| _pg_char_max_length | _pg_char_octet_length | _pg_datetime_precision | _pg_expandarray | _pg_index_position | _pg_interval_type | _pg_numeric_precision |
|---|---|---|---|---|---|---|
| _pg_numeric_precision_radix | _pg_numeric_scale | _pg_truetypid | _pg_truetypmod | abbrev | abs | abstime |
| abstimeeq | abstimege | abstimegt | abstimein | abstimele | abstimelt | abstimene |
| abstimeout | abstimerecv | abstimesend | aclcontains | acldefault | aclexplode | aclinsert |
| aclitemeq | aclitemin | aclitemout | aclremove | acos | age | akeys |
| any_in | any_out | anyarray_in | anyarray_out | anyarray_recv | anyarray_send | anyelement_in |
| anyelement_out | anyenum_in | anyenum_out | anynonarray_in | anynonarray_out | anyrange_in | anyrange_out |
| anytextcat | area | areajoinsel | areasel | array_agg | array_agg_finalfn | array_agg_transfn |
| array_append | array_cat | array_dims | array_eq | array_fill | array_ge | array_gt |
| array_in | array_larger | array_le | array_length | array_lower | array_lt | array_ndims |
| array_ne | array_out | array_prepend | array_recv | array_send | array_smaller | array_to_json |
| array_to_string | array_typanalyze | array_upper | arraycontained | arraycontains | arraycontjoinsel | arraycontsel |
| arrayoverlap | ascii | asin | atan | atan2 | avals | avg |
| big5_to_euc_tw | big5_to_mic | big5_to_utf8 | bit | bit_and | bit_in | bit_length |
| bit_or | bit_out | bit_recv | bit_send | bitand | bitcat | bitcmp |
| biteq | bitge | bitgt | bitle | bitlt | bitne | bitnot |
| bitor | bitshiftleft | bitshiftright | bittypmodin | bittypmodout | bitxor | bool |
| bool_and | bool_or | booland_statefunc | booleq | boolge | boolgt | boolin |
| boolle | boollt | boolne | boolor_statefunc | boolout | boolrecv | boolsend |
| box | box_above | box_above_eq | box_add | box_below | box_below_eq | box_center |
| box_contain | box_contain_pt | box_contained | box_distance | box_div | box_eq | box_ge |
| box_gt | box_in | box_intersect | box_le | box_left | box_lt | box_mul |
| box_out | box_overabove | box_overbelow | box_overlap | box_overleft | box_overright | box_recv |
| box_right | box_same | box_send | box_sub | bpchar | bpchar_larger | bpchar_pattern_ge |
| bpchar_pattern_gt | bpchar_pattern_le | bpchar_pattern_lt | bpchar_smaller | bpchar_sortsupport | bpcharcmp | bpchareq |
| bpcharge | bpchargt | bpchariclike | bpcharicnlike | bpcharicregexeq | bpcharicregexne | bpcharin |
| bpcharle | bpcharlike | bpcharlt | bpcharne | bpcharnlike | bpcharout | bpcharrecv |
| bpcharregexeq | bpcharregexne | bpcharsend | bpchartypmodin | bpchartypmodout | broadcast | btabstimecmp |
| btarraycmp | btbeginscan | btboolcmp | btbpchar_pattern_cmp | btbuild | btbuildempty | btbulkdelete |
| btcanreturn | btcharcmp | btcostestimate | btendscan | btfloat48cmp | btfloat4cmp | btfloat4sortsupport |
| btfloat84cmp | btfloat8cmp | btfloat8sortsupport | btgetbitmap | btgettuple | btinsert | btint24cmp |
| btint28cmp | btint2cmp | btint2sortsupport | btint42cmp | btint48cmp | btint4cmp | btint4sortsupport |
| btint82cmp | btint84cmp | btint8cmp | btint8sortsupport | btmarkpos | btnamecmp | btnamesortsupport |
| btoidcmp | btoidsortsupport | btoidvectorcmp | btoptions | btrecordcmp | btreltimecmp | btrescan |
| btrestrpos | btrim | bttext_pattern_cmp | bttextcmp | bttextsortsupport | bttidcmp | bttintervalcmp |
| btvacuumcleanup | bytea_sortsupport | bytea_string_agg_finalfn | bytea_string_agg_transfn | byteacat | byteacmp | byteaeq |
| byteage | byteagt | byteain | byteale | bytealike | bytealt | byteane |
| byteanlike | byteaout | bytearecv | byteasend | cash_cmp | cash_div_cash | cash_div_flt4 |
| cash_div_flt8 | cash_div_int2 | cash_div_int4 | cash_div_int8 | cash_eq | cash_ge | cash_gt |
| cash_in | cash_le | cash_lt | cash_mi | cash_mul_flt4 | cash_mul_flt8 | cash_mul_int2 |
| cash_mul_int4 | cash_mul_int8 | cash_ne | cash_out | cash_pl | cash_recv | cash_send |
| cashlarger | cashsmaller | cbrt | ceil | ceiling | center | char |
| char_length | character_length | chareq | charge | chargt | charin | charle |
| charlt | charne | charout | charrecv | charsend | chr | cideq |
| cidin | cidout | cidr | cidr_in | cidr_out | cidr_recv | cidr_send |
| cidrecv | cidsend | circle | circle_above | circle_add_pt | circle_below | circle_center |
| circle_contain | circle_contain_pt | circle_contained | circle_distance | circle_div_pt | circle_eq | circle_ge |
| circle_gt | circle_in | circle_le | circle_left | circle_lt | circle_mul_pt | circle_ne |
| circle_out | circle_overabove | circle_overbelow | circle_overlap | circle_overleft | circle_overright | circle_recv |
| circle_right | circle_same | circle_send | circle_sub_pt | clock_timestamp | close_lb | close_ls |
| close_lseg | close_pb | close_pl | close_ps | close_sb | close_sl | col_description |
| concat | concat_ws | contjoinsel | contsel | convert | convert_from | convert_to |
| corr | cos | cot | count | covar_pop | covar_samp | cstring_in |
| cstring_out | cstring_recv | cstring_send | cume_dist | current_database | current_query | current_schema |
| xpath_exists | current_setting | current_user | currtid | currtid2 | currval | cursor_to_xml |
| cursor_to_xmlschema | database_to_xml | database_to_xml_and_xmlschema | database_to_xmlschema | date | date_cmp | date_cmp_timestamp |
| date_cmp_timestamptz | date_eq | date_eq_timestamp | date_eq_timestamptz | date_ge | date_ge_timestamp | date_ge_timestamptz |
| date_gt | date_gt_timestamp | date_gt_timestamptz | date_in | date_larger | date_le | date_le_timestamp |
| date_le_timestamptz | date_lt | date_lt_timestamp | date_lt_timestamptz | date_mi | date_mi_interval | date_mii |
| date_ne | date_ne_timestamp | date_ne_timestamptz | date_out | date_pl_interval | date_pli | date_recv |
| date_send | date_smaller | date_sortsupport | daterange_canonical | daterange_subdiff | datetime_pl | datetimetz_pl |
| dcbrt | decode | defined | degrees | delete | dense_rank | dexp |
| diagonal | diameter | dispell_init | dispell_lexize | dist_cpoly | dist_lb | dist_pb |
| dist_pc | dist_pl | dist_ppath | dist_ps | dist_sb | dist_sl | div |
| dlog1 | dlog10 | domain_in | domain_recv | dpow | dround | dsimple_init |
| dsimple_lexize | dsnowball_init | dsnowball_lexize | dsqrt | dsynonym_init | dsynonym_lexize | dtrunc |
| each | enum_ne | enum_out | enum_range | enum_recv | enum_send | enum_smaller |
| eqjoinsel | eqsel | euc_cn_to_mic | euc_cn_to_utf8 | euc_jis_2004_to_shift_jis_2004 | euc_jis_2004_to_utf8 | euc_jp_to_mic |
| euc_jp_to_sjis | euc_jp_to_utf8 | euc_kr_to_mic | euc_kr_to_utf8 | euc_tw_to_big5 | euc_tw_to_mic | euc_tw_to_utf8 |
| every | exist | exists_all | exists_any | exp | factorial | family |
| fdw_handler_in | fdw_handler_out | fetchval | first_value | float4 | float4_accum | float48div |
| float48eq | float48ge | float48gt | float48le | float48lt | float48mi | float48mul |
| float48ne | float48pl | float4abs | float4div | float4eq | float4ge | float4gt |
| float4in | float4larger | float4le | float4lt | float4mi | float4mul | float4ne |
| float4out | float4pl | float4recv | float4send | float4smaller | float4um | float4up |
| float8 | float8_accum | float8_avg | float8_collect | float8_corr | float8_covar_pop | float8_covar_samp |
| float8_regr_accum | float8_regr_avgx | float8_regr_avgy | float8_regr_collect | float8_regr_intercept | float8_regr_r2 | float8_regr_slope |
| float8_regr_sxx | float8_regr_sxy | float8_regr_syy | float8_stddev_pop | float8_stddev_samp | float8_var_pop | float8_var_samp |
| float84div | float84eq | float84ge | float84gt | float84le | float84lt | float84mi |
| float84mul | float84ne | float84pl | float8abs | float8div | float8eq | float8ge |
| float8gt | float8in | float8larger | float8le | float8lt | float8mi | float8mul |
| float8ne | float8out | float8pl | float8recv | float8send | float8smaller | float8um |
| float8up | floor | flt4_mul_cash | flt8_mul_cash | fmgr_c_validator | fmgr_internal_validator | fmgr_sql_validator |
| format | format_type | gb18030_to_utf8 | gbk_to_utf8 | generate_series | generate_subscripts | get_bit |
| get_byte | get_current_ts_config | - | - | gin_clean_pending_list | gin_cmp_prefix | gin_cmp_tslexeme |
| gin_extract_tsquery | gin_extract_tsvector | gin_tsquery_consistent | gin_tsquery_triconsistent | ginarrayconsistent | ginarrayextract | ginarraytriconsistent |
| ginbeginscan | ginbuild | ginbuildempty | ginbulkdelete | gincostestimate | ginendscan | gingetbitmap |
| gininsert | ginmarkpos | ginoptions | ginqueryarrayextract | ginrescan | ginrestrpos | ginvacuumcleanup |
| gist_box_compress | gist_box_consistent | gist_box_decompress | gist_box_penalty | gist_box_picksplit | gist_box_same | gist_box_union |
| gist_circle_compress | gist_circle_consistent | gist_point_compress | gist_point_consistent | gist_point_distance | gist_poly_compress | gist_poly_consistent |
| gistbeginscan | gistbuild | gistbuildempty | gistbulkdelete | gistcostestimate | gistendscan | gistgetbitmap |
| gistgettuple | gistinsert | gistmarkpos | gistoptions | gistrescan | gistrestrpos | gistvacuumcleanup |
| gtsquery_compress | gtsquery_consistent | gtsquery_decompress | gtsquery_penalty | gtsquery_picksplit | gtsquery_same | gtsquery_union |
| gtsvector_compress | gtsvector_consistent | gtsvector_decompress | gtsvector_penalty | gtsvector_picksplit | gtsvector_same | gtsvector_union |
| gtsvectorin | gtsvectorout | has_tablespace_privilege | has_type_privilege | hash_aclitem | hashbeginscan | hashbuild |
| hashbuildempty | hashbulkdelete | hashcostestimate | hashendscan | hashgetbitmap | hashgettuple | hashinsert |
| hashint2vector | hashint4 | hashint8 | hashmacaddr | hashmarkpos | hashname | hashoid |
| hashoidvector | hashoptions | hashrescan | hashrestrpos | hashtext | hashvacuumcleanup | hashvarlena |
| host | hostmask | iclikejoinsel | iclikesel | icnlikejoinsel | icnlikesel | icregexeqjoinsel |
| icregexeqsel | icregexnejoinsel | icregexnesel | inet_client_addr | inet_client_port | inet_in | inet_out |
| inet_recv | inet_send | inet_server_addr | inet_server_port | inetand | inetmi | inetmi_int8 |
| inetnot | inetor | inetpl | initcap | int2_accum | int2_avg_accum | int2_mul_cash |
| int2_sum | int24div | int24eq | int24ge | int24gt | int24le | int24lt |
| int24mi | int24mul | int24ne | int24pl | int28div | int28eq | int28ge |
| int28gt | int28le | int28lt | int28mi | int28mul | int28ne | int28pl |
| int2abs | int2and | int2div | int2eq | int2ge | int2gt | int2in |
| int2larger | int2le | int2lt | int2mi | int2mod | int2mul | int2ne |
| int2not | int2or | int2out | int2pl | int2recv | int2send | int2shl |
| int2shr | int2smaller | int2um | int2up | int2vectoreq | int2vectorin | int2vectorout |
| int2vectorrecv | int2vectorsend | int2xor | int4_accum | int4_avg_accum | int4_mul_cash | int4_sum |
| int42div | int42eq | int42ge | int42gt | int42le | int42lt | int42mi |
| int42mul | int42ne | int42pl | int48div | int48eq | int48ge | int48gt |
| int48le | int48lt | int48mi | int48mul | int48ne | int48pl | int4abs |
| int4and | int4div | int4eq | int4ge | int4gt | int4in | int4inc |
| int4larger | int4le | int4lt | int4mi | int4mod | int4mul | int4ne |
| int4not | int4or | int4out | int4pl | int4range | int4range_canonical | int4range_subdiff |
| int4recv | int4send | int4shl | int4shr | int4smaller | int4um | int4up |
| int4xor | int8 | int8_avg | int8_avg_accum | int8_avg_collect | int8_mul_cash | int8_sum |
| int8_sum_to_int8 | int8_accum | int82div | int82eq | int82ge | int82gt | int82le |
| int82lt | int82mi | int82mul | int82ne | int82pl | int84div | int84eq |
| int84ge | int84gt | int84le | int84lt | int84mi | int84mul | int84ne |
| int84pl | int8abs | int8and | int8div | int8eq | int8ge | int8gt |
| int8in | int8inc | int8inc_any | int8inc_float8_float8 | int8larger | int8le | int8lt |
| int8mi | int8mod | int8mul | int8ne | int8not | int8or | int8out |
| int8pl | int8pl_inet | int8range | int8range_canonical | int8range_subdiff | int8recv | int8send |
| int8shl | int8shr | int8smaller | int8um | int8up | int8xor | integer_pl_date |
| inter_lb | inter_sb | inter_sl | internal_in | internal_out | interval | interval_accum |
| interval_avg | interval_cmp | interval_collect | interval_div | interval_eq | interval_ge | interval_gt |
| interval_hash | interval_in | interval_larger | interval_le | interval_lt | interval_mi | interval_mul |
| interval_ne | interval_out | interval_pl | interval_pl_date | interval_pl_time | interval_pl_timestamp | interval_pl_timestamptz |
| interval_pl_timetz | interval_recv | interval_send | interval_smaller | interval_transform | interval_um | intervaltypmodin |
| intervaltypmodout | intinterval | isexists | ishorizontal | iso_to_koi8r | iso_to_mic | iso_to_win1251 |
| iso_to_win866 | iso8859_1_to_utf8 | iso8859_to_utf8 | isparallel | isperp | isvertical | johab_to_utf8 |
| json_in | json_out | json_recv | json_send | justify_days | justify_hours | justify_interval |
| koi8r_to_iso | koi8r_to_mic | koi8r_to_utf8 | koi8r_to_win1251 | koi8r_to_win866 | koi8u_to_utf8 | language_handler_in |
| language_handler_out | latin1_to_mic | latin2_to_mic | latin2_to_win1250 | latin3_to_mic | latin4_to_mic | like_escape |
| likejoinsel | likesel | line | line_distance | line_eq | line_horizontal | line_in |
| line_interpt | line_intersect | line_out | line_parallel | line_perp | line_recv | line_send |
| line_vertical | ln | lo_close | lo_creat | lo_create | lo_export | lo_import |
| lo_lseek | lo_open | lo_tell | lo_truncate | lo_unlink | log | loread |
| lower | lower_inc | lower_inf | lowrite | lpad | lseg | lseg_center |
| lseg_distance | lseg_eq | lseg_ge | lseg_gt | lseg_horizontal | lseg_in | lseg_interpt |
| lseg_intersect | lseg_le | lseg_length | lseg_lt | lseg_ne | lseg_out | lseg_parallel |
| lseg_perp | lseg_recv | lseg_send | lseg_vertical | ltrim | macaddr_and | macaddr_cmp |
| macaddr_eq | macaddr_ge | macaddr_gt | macaddr_in | macaddr_le | macaddr_lt | macaddr_ne |
| macaddr_not | macaddr_or | macaddr_out | macaddr_recv | macaddr_send | makeaclitem | masklen |
| max | md5 | mic_to_big5 | mic_to_euc_cn | mic_to_euc_jp | mic_to_euc_kr | mic_to_euc_tw |
| mic_to_iso | mic_to_koi8r | mic_to_latin1 | mic_to_latin2 | mic_to_latin3 | mic_to_latin4 | mic_to_sjis |
| mic_to_win1250 | mic_to_win1251 | mic_to_win866 | min | mktinterval | money | mul_d_interval |
| name | nameeq | namege | namegt | nameiclike | nameicnlike | nameicregexeq |
| nameicregexne | namein | namele | namelike | namelt | namene | namenlike |
| nameout | namerecv | nameregexeq | nameregexne | namesend | neqjoinsel | neqsel |
| network_cmp | network_eq | network_ge | network_gt | network_le | network_lt | network_ne |
| network_sub | network_subeq | network_sup | network_supeq | nlikejoinsel | nlikesel | numeric |
| numeric_abs | numeric_accum | numeric_add | numeric_avg | numeric_avg_accum | numeric_avg_collect | numeric_cmp |
| numeric_collect | numeric_div | numeric_div_trunc | numeric_eq | numeric_exp | numeric_fac | numeric_ge |
| numeric_gt | numeric_in | numeric_inc | numeric_larger | numeric_le | numeric_ln | numeric_log |
| numeric_lt | numeric_mod | numeric_mul | numeric_ne | numeric_out | numeric_power | numeric_recv |
| numeric_send | numeric_smaller | numeric_sortsupport | numeric_sqrt | numeric_stddev_pop | numeric_stddev_samp | numeric_sub |
| numeric_transform | numeric_uminus | numeric_uplus | numeric_var_pop | numeric_var_samp | numerictypmodin | numerictypmodout |
| numrange_subdiff | oid | oideq | oidge | oidgt | oidin | oidlarger |
| oidle | oidlt | oidne | oidout | oidrecv | oidsend | oidsmaller |
| oidvectoreq | oidvectorge | oidvectorgt | oidvectorin | oidvectorle | oidvectorlt | oidvectorne |
| oidvectorout | oidvectorrecv | oidvectorsend | oidvectortypes | on_pb | on_pl | on_ppath |
| on_ps | on_sb | on_sl | opaque_in | opaque_out | ordered_set_transition | overlaps |
| overlay | path | path_add | path_add_pt | path_center | path_contain_pt | path_distance |
| path_div_pt | path_in | path_inter | path_length | path_mul_pt | path_n_eq | path_n_ge |
| path_n_gt | path_n_le | path_n_lt | path_npoints | path_out | path_recv | path_send |
| path_sub_pt | percentile_cont | percentile_cont_float8_final | percentile_cont_interval_final | pg_char_to_encoding | pg_cursor | pg_encoding_max_length |
| pg_encoding_to_char | pg_extension_config_dump | - | - | pg_node_tree_in | pg_node_tree_out | pg_node_tree_recv |
| pg_node_tree_send | pg_prepared_statement | pg_prepared_xact | - | - | pg_show_all_settings | pg_stat_get_bgwriter_stat_reset_time |
| pg_stat_get_buf_fsync_backend | pg_stat_get_checkpoint_sync_time | pg_stat_get_checkpoint_write_time | pg_stat_get_db_blk_read_time | pg_stat_get_db_blk_write_time | pg_stat_get_db_conflict_all | pg_stat_get_db_conflict_bufferpin |
| pg_stat_get_db_conflict_snapshot | pg_stat_get_db_conflict_startup_deadlock | pg_switch_xlog | xpath | pg_timezone_abbrevs | pg_timezone_names | - |
| plpgsql_call_handler | plpgsql_inline_handler | plpgsql_validator | point_above | point_add | point_below | point_distance |
| point_div | point_eq | point_horiz | point_in | point_left | point_mul | point_ne |
| point_out | point_recv | point_right | point_send | point_sub | point_vert | poly_above |
| poly_below | poly_center | poly_contain | poly_contain_pt | poly_contained | poly_distance | poly_in |
| poly_left | poly_npoints | poly_out | poly_overabove | poly_overbelow | poly_overlap | poly_overleft |
| poly_overright | poly_recv | poly_right | poly_same | poly_send | polygon | position |
| positionjoinsel | positionsel | postgresql_fdw_validator | pow | power | prsd_end | prsd_headline |
| prsd_lextype | prsd_nexttoken | prsd_start | pt_contained_circle | pt_contained_poly | query_to_xml | query_to_xml_and_xmlschema |
| query_to_xmlschema | quote_ident | quote_literal | quote_nullable | radians | radius | random |
| range_adjacent | range_after | range_before | range_cmp | range_contained_by | range_contains | range_contains_elem |
| range_eq | range_ge | range_gist_compress | range_gist_consistent | range_gist_decompress | range_gist_penalty | range_gist_picksplit |
| range_gist_same | range_gist_union | range_gt | range_in | range_intersect | range_le | range_lt |
| range_minus | range_ne | range_out | range_overlaps | range_overleft | range_overright | range_recv |
| range_send | range_typanalyze | range_union | rank | record_eq | record_ge | record_gt |
| record_in | record_le | record_lt | record_ne | record_out | record_recv | record_send |
| regclass | regclassin | regclassout | regclassrecv | regclasssend | regconfigin | regconfigout |
| regconfigrecv | regconfigsend | regdictionaryin | regdictionaryout | regdictionaryrecv | regdictionarysend | regexeqjoinsel |
| regexeqsel | regexnejoinsel | regexnesel | regexp_matches | regexp_replace | regexp_split_to_array | regexp_split_to_table |
| regoperatorin | regoperatorout | regoperatorrecv | regoperatorsend | regoperin | regoperout | regoperrecv |
| regopersend | regprocedurein | regprocedureout | regprocedurerecv | regproceduresend | regprocin | regprocout |
| regprocrecv | regprocsend | regr_avgx | regr_avgy | regr_count | regr_intercept | regr_r2 |
| regr_slope | regr_sxx | regr_sxy | regr_syy | regtypein | regtypeout | regtyperecv |
| regtypesend | reltime | reltimeeq | reltimege | reltimegt | reltimein | reltimele |
| reltimelt | reltimene | reltimeout | reltimerecv | reltimesend | repeat | replace |
| reverse | RI_FKey_cascade_del | RI_FKey_cascade_upd | RI_FKey_check_ins | RI_FKey_check_upd | RI_FKey_noaction_del | RI_FKey_noaction_upd |
| RI_FKey_restrict_del | RI_FKey_restrict_upd | RI_FKey_setdefault_del | RI_FKey_setdefault_upd | RI_FKey_setnull_del | RI_FKey_setnull_upd | right |
| round | row_number | row_to_json | rpad | rtrim | scalargtjoinsel | scalargtsel |
| scalarltjoinsel | scalarltsel | schema_to_xml | schema_to_xml_and_xmlschema | schema_to_xmlschema | session_user | set_bit |
| set_byte | set_config | set_masklen | shift_jis_2004_to_euc_jis_2004 | shift_jis_2004_to_utf8 | sjis_to_euc_jp | sjis_to_mic |
| sjis_to_utf8 | smgrin | smgrout | spg_kd_choose | spg_kd_config | spg_kd_inner_consistent | spg_kd_picksplit |
| spg_quad_choose | spg_quad_config | spg_quad_inner_consistent | spg_quad_leaf_consistent | spg_quad_picksplit | spg_text_choose | spg_text_config |
| spg_text_inner_consistent | spg_text_leaf_consistent | spg_text_picksplit | spgbeginscan | spgbuild | spgbuildempty | spgbulkdelete |
| spgcanreturn | spgcostestimate | spgendscan | spggetbitmap | spggettuple | spginsert | spgmarkpos |
| spgoptions | spgrescan | spgrestrpos | spgvacuumcleanup | stddev | stddev_pop | stddev_samp |
| string_agg | string_agg_finalfn | string_agg_transfn | strip | sum | suppress_redundant_updates_trigger | table_to_xml |
| table_to_xml_and_xmlschema | table_to_xmlschema | tan | text | text_ge | text_gt | text_larger |
| text_le | text_lt | text_pattern_ge | text_pattern_gt | text_pattern_le | text_pattern_lt | text_smaller |
| textanycat | textcat | texteq | texticlike | texticnlike | texticregexeq | texticregexne |
| textin | textlike | textne | textnlike | textout | textrecv | textregexeq |
| textregexne | textsend | thesaurus_init | thesaurus_lexize | tideq | tidge | tidgt |
| tidin | tidlarger | tidle | tidlt | tidne | tidout | tidrecv |
| tidsend | tidsmaller | time | time_cmp | time_eq | time_ge | time_gt |
| time_hash | time_in | time_larger | time_le | time_lt | time_mi_interval | time_mi_time |
| time_ne | time_out | time_pl_interval | time_recv | time_send | time_smaller | time_transform |
| timedate_pl | timemi | timepl | timestamp | timestamp_cmp | timestamp_cmp_date | timestamp_cmp_timestamptz |
| timestamp_eq | timestamp_eq_date | timestamp_eq_timestamptz | timestamp_ge | timestamp_ge_date | timestamp_ge_timestamptz | timestamp_gt |
| timestamp_gt_date | timestamp_gt_timestamptz | timestamp_hash | timestamp_in | timestamp_larger | timestamp_le | timestamp_le_date |
| timestamp_le_timestamptz | timestamp_lt | timestamp_lt_date | timestamp_lt_timestamptz | timestamp_mi | timestamp_mi_interval | timestamp_ne |
| timestamp_ne_date | timestamp_ne_timestamptz | timestamp_out | timestamp_pl_interval | timestamp_recv | timestamp_send | timestamp_smaller |
| timestamp_sortsupport | timestamp_transform | timestamptypmodin | timestamptypmodout | timestamptz | timestamptz_cmp | timestamptz_cmp_date |
| timestamptz_cmp_timestamp | timestamptz_eq | timestamptz_eq_date | timestamptz_eq_timestamp | timestamptz_ge | timestamptz_ge_date | timestamptz_ge_timestamp |
| timestamptz_gt | timestamptz_gt_date | timestamptz_gt_timestamp | timestamptz_in | timestamptz_larger | timestamptz_le | timestamptz_le_date |
| timestamptz_le_timestamp | timestamptz_lt | timestamptz_lt_date | timestamptz_lt_timestamp | timestamptz_mi | timestamptz_mi_interval | timestamptz_ne |
| timestamptz_ne_date | timestamptz_ne_timestamp | timestamptz_out | timestamptz_pl_interval | timestamptz_recv | timestamptz_send | timestamptz_smaller |
| timestamptztypmodin | timestamptztypmodout | timetypmodin | timetypmodout | timetz | timetz_cmp | timetz_eq |
| timetz_ge | timetz_gt | timetz_hash | timetz_in | timetz_larger | timetz_le | timetz_lt |
| timetz_mi_interval | timetz_ne | timetz_out | timetz_pl_interval | timetz_recv | timetz_send | timetz_smaller |
| timetzdate_pl | timetztypmodin | timetztypmodout | timezone (2069) | timezone (1159) | timezone (2037) | timezone (2070) |
| timezone (1026) | timezone (2038) | tintervalct | tintervaleq | tintervalge | tintervalgt | tintervalin |
| tintervalle | tintervalleneq | tintervallenge | tintervallengt | tintervallenle | tintervallenlt | tintervallenne |
| tintervallt | tintervalne | tintervalout | tintervalov | tintervalrecv | tintervalsame | tintervalsend |
| tintervalstart | to_ascii (1845) | to_ascii (1847) | to_ascii (1846) | trigger_in | trigger_out | ts_match_qv |
| ts_match_tq | ts_match_tt | ts_match_vq | ts_rank | ts_rank_cd | ts_rewrite | ts_stat |
| ts_token_type | ts_typanalyze | tsmatchjoinsel | tsmatchsel | tsq_mcontained | tsq_mcontains | tsquery_and |
| tsquery_cmp | tsquery_eq | tsquery_ge | tsquery_gt | tsquery_le | tsquery_lt | tsquery_ne |
| tsquery_not | tsquery_or | tsqueryin | tsqueryout | tsqueryrecv | tsquerysend | tsrange |
| tsrange_subdiff | tstzrange | tstzrange_subdiff | tsvector_cmp | tsvector_concat | tsvector_eq | tsvector_ge |
| tsvector_gt | tsvector_le | tsvector_lt | tsvector_ne | tsvector_update_trigger | tsvector_update_trigger_column | tsvectorin |
| tsvectorout | tsvectorrecv | tsvectorsend | txid_current | txid_current_snapshot | txid_snapshot_in | txid_snapshot_out |
| txid_snapshot_recv | txid_snapshot_send | txid_snapshot_xip | txid_snapshot_xmax | txid_snapshot_xmin | txid_visible_in_snapshot | uhc_to_utf8 |
| unique_key_recheck | unknownin | unknownout | unknownrecv | unknownsend | unnest | utf8_to_big5 |
| utf8_to_euc_cn | utf8_to_euc_jis_2004 | utf8_to_euc_jp | utf8_to_euc_kr | utf8_to_euc_tw | utf8_to_gb18030 | utf8_to_gbk |
| utf8_to_iso8859 | utf8_to_iso8859_1 | utf8_to_johab | utf8_to_koi8r | utf8_to_koi8u | utf8_to_shift_jis_2004 | utf8_to_sjis |
| utf8_to_uhc | utf8_to_win | uuid_cmp | uuid_eq | uuid_ge | uuid_gt | uuid_hash |
| uuid_in | uuid_le | uuid_lt | uuid_ne | uuid_out | uuid_recv | uuid_send |
| var_pop | var_samp | varbit | varbit_in | varbit_out | varbit_recv | varbit_send |
| varbit_transform | varbitcmp | varbiteq | varbitge | varbitgt | varbitle | varbitlt |
| varbitne | varbittypmodin | varbittypmodout | varchar | varchar_transform | varcharin | varcharout |
| varcharrecv | varcharsend | varchartypmodin | varchartypmodout | variance | void_in | void_out |
| void_recv | void_send | win_to_utf8 | win1250_to_latin2 | win1250_to_mic | win1251_to_iso | win1251_to_koi8r |
| win1251_to_mic | win1251_to_win866 | win866_to_iso | win866_to_koi8r | win866_to_mic | win866_to_win1251 | xideq |
| xideqint4 | xidin | xidout | xidrecv | xidsend | xml | xml_in |
| xml_is_well_formed | xml_is_well_formed_content | xml_is_well_formed_document | xml_out | xml_recv | xml_send | xmlagg |
| xmlcomment | xmlconcat2 | xmlexists | xmlvalidate | pg_notify | pg_stat_get_wal_receiver | - |
The following table lists the functions used by MogDB Kernel to implement internal system functions. You are not advised to use these functions. If you need to use them, contact Enmo technical support.
-
pv_compute_pool_workload()
Description: Provides the current load information about computing Node Groups on cloud.
Return type: record
-
locktag_decode(locktag text)
Description: Parses lock details from locktag.
Return type: text
-
smgreq(a smgr, b smgr)
Description: Compares two smgrs to check whether they are the same.
Parameter: smgr, smgr Return type: Boolean
-
smgrne(a smgr, b smgr)
Description: Checks whether the two smgrs are different.
Parameter: smgr, smgr
Return type: Boolean
-
xidin4
Description: Inputs a 4-byte xid.
Parameter: cstring
Return type: xid32
-
set_hashbucket_info
Description: Sets hash bucket information.
Parameter: text
Return type: Boolean
-
hs_concat
Description: Concatenates two pieces of hstore data.
Parameter: hstore, hstore
Return type: hstore
-
hs_contained
Description: Determines whether two hstore data records are included. The return value is of the Boolean type.
Parameter: hstore, hstore
Return type: Boolean
-
hs_contains
Description: Determines whether two hstore data records are included. The return value is of the Boolean type.
Parameter: hstore, hstore
Return type: Boolean
-
hstore
Description: Converts parameters to the hstore type.
Parameter: text, text
Return type: hstore
-
hstore_in
Description: Receives hstore data in string format.
Parameter: cstring
Return type: hstore
-
hstore_out
Description: Sends hstore data in string format.
Parameter: hstore
Return type: cstring
-
hstore_send
Description: Sends hstore data in bytea format.
Parameter: hstore
Return type: bytea
-
hstore_to_array
Description: Sends hstore data in text array format.
Parameter: hstore
Return type: text[]
-
hstore_to_matrix
Description: Sends hstore data in text array format.
Parameter: hstore
Return type: text[]
-
hstore_version_diag
Description: Sends hstore data in integer array format.
Parameter: hstore
Return type: integer
-
int1send
Description: Packs unsigned 1-byte integers into the internal data buffer stream.
Parameter: tinyint
Return type: bytea
-
isdefined
Description: Checks whether a specified key exists.
Parameter: hstore, text
Return type: Boolean
-
listagg
Description: Specifies aggregate functions of the list type.
Parameter: smallint, text
Return type: text
-
log_fdw_validator
Description: Specifies validation functions.
Parameter: text[], oid
Return type: void
-
nvarchar2typmodin
Description: Obtains the typmod information of the varchar type.
Parameter: cstring[]
Return type: integer
-
nvarchar2typmodout
Description: Obtains the typmod information of the varchar type, constructs a character string, and returns the character string.
Parameter: integer
Return type: cstring
-
read_disable_conn_file
Description: Reads forbidden connection files.
Parameter: nan
Return type: disconn_mode text, disconn_host text, disconn_port text, local_host text, local_port text, redo_finished text
-
regex_like_m
Description: Specifies the regular expression match, which is used to determine whether a character string complies with a specified regular expression.
Parameter: text, text
Return type: Boolean
-
update_pgjob
Description: Updates a job.
Parameter: bigint, "char", bigint, timestamp without time zone, timestamp without time zone, timestamp without time zone, timestamp without time zone, timestamp without time zone, smallint
Return type: void
-
enum_cmp
Description: Specifies the enumeration comparison function, which is used to determine whether two enumeration classes are equal and determine their relative sizes.
Parameter: anyenum, anyenum
Return type: integer
-
enum_eq
Description: Specifies the enumeration comparison function, which is used to implement the equal sign (=).
Parameter: anyenum, anyenum
Return type: Boolean
-
enum_first
Description: Returns the first element in the enumeration class.
Parameter: anyenum
Return type: anyenum
-
enum_ge
Description: Specifies the enumeration comparison function, which is used to implement the greater-than sign (>) and equal sign (=).
Parameter: anyenum, anyenum
Return type: Boolean
-
enum_gt
Description: Specifies the enumeration comparison function, which is used to implement the greater-than sign (>).
Parameter: anyenum, anyenum
Return type: Boolean
-
enum_in
Description: Specifies the enumeration comparison function, which is used to determine whether an element is in an enumeration class.
Parameter: cstring, oid
Return type: anyenum
-
enum_larger
Description: Specifies the enumeration comparison function, which is used to implement the greater-than sign (>).
Parameter: anyenum, anyenum
Return type: anyenum
-
enum_last
Description: Returns the last element in the enumeration class.
Parameter: anyenum
Return type: anyenum
-
enum_le
Description: Specifies the enumeration comparison function, which is used to implement the less-than sign (<) and equal sign (=).
Parameter: anyenum, anyenum
Return type: Boolean
-
enum_lt
Description: Specifies the enumeration comparison function, which is used to implement the less-than sign (<).
Parameter: anyenum, anyenum
Return type: Boolean
-
enum_smaller
Description: Specifies the enumeration comparison function, which is used to implement the less-than sign (<).
Parameter: anyenum, anyenum
Return type: Boolean
-
node_oid_name
Description: Not supported.
Parameter: oid
Return type: cstring
-
pg_buffercache_pages
Description: Reads data from the shared buffer.
Parameter: nan
Return type: bufferid integer, relfilenode oid, bucketid smallint, reltablespace oid, reldatabase oid, relforknumber smallint, relblocknumber bigint, isdirty boolean, usage_count smallint
-
pg_check_xidlimit
Description: Checks whether nextxid is greater than or equal to xidwarnlimit.
Parameter: nan
Return type: Boolean
-
pg_comm_delay
Description: Displays the delay status of the communication library of a single DN.
Parameter: nan
Return type: text, text, integer, integer, integer, integer
-
pg_comm_recv_stream
Description: Displays the receiving stream status of all communication libraries on a single DN.
Parameter: nan
Return type: text, bigint, text, bigint, integer, integer, integer, text, bigint, integer, integer, integer, bigint, bigint, bigint, bigint, bigint
-
pg_comm_send_stream
Description: Displays the sending stream status of all communication libraries on a single DN.
Parameter: nan
Return type: text, bigint, text, bigint, integer, integer, integer, text, bigint, integer, integer, integer, bigint, bigint, bigint, bigint, bigint
-
pg_comm_status
Description: Displays the communication status of a single DN.
Parameter: nan
Return type: text, integer, integer, bigint, bigint, bigint, bigint, bigint, integer, integer, integer, integer, integer
-
pg_log_comm_status
Description: Prints some logs on the DN.
Parameter: nan
Return type: Boolean
-
pg_parse_clog
Description: Parses clog to obtain the status of xid.
Parameter: nan
Return type: xid xid, status text
-
pg_pool_ping
Description: Sets PoolerPing.
Parameter: Boolean
Return type: SETOF boolean
-
pg_resume_bkp_flag
Description: Obtains the delay xlong flag for backup and restoration.
Parameter: slot_name name
Return type: start_backup_flag boolean, to_delay boolean, ddl_delay_recycle_ptr text, rewind_time text
-
psortoptions
Description: Returns the psort attribute.
Parameter: text[], boolean
Return type: bytea
-
xideq4
Description: Compares two values of the xid type to check whether they are the same.
Parameter: xid32, xid32
Return type: Boolean
-
xideqint8
Description: Compares values of the xid type and int8 type to check whether they are the same.
Parameter: xid, bigint
Return type: Boolean
-
xidlt
Description: Returns whether xid1 < xid2 is true.
Parameter: xid, xid
Return type: Boolean
-
xidlt4
Description: Returns whether xid1 < xid2 is true.
Parameter: xid32, xid32
Return type: Boolean