- 关于MogDB
- 快速入门
- 特性描述
- 概览
- 高性能
- 高可用
- 维护性
- 兼容性
- 视图增加%rowtype属性
- 聚合函数distinct性能优化
- 聚合函数支持KEEP子句
- 聚合函数支持场景扩展
- 兼容支持MySQL别名支持单引号
- 支持current_date/current_time关键字作为字段名
- 自定义type数组
- For Update支持外连接
- MogDB支持Insert All特性
- Oracle DBLink语法兼容
- 创建PACKAGE/FUNCTION/PROCEDURE时去除TYPE类型转换提示
- 支持MERGE INTO命中索引时使用Bypass方法
- 支持增加存储过程及函数参数的nocopy属性
- 支持在数组extend的参数中传入数组的count属性
- 支持q quote转义字符
- 支持两个date类型的数据相减返回numeric类型
- 支持表函数table()
- 支持PROCEDURE/FUNCTION/PACKAGE的end后的name和Oracle保持一致
- 支持WHERE CURRENT OF写法
- 支持包内常量作为函数或者过程入参的默认值
- 支持PLPGSQL subtype
- 支持无参数FUNCTION的同义词调用不加括号
- 支持dbms_utility.format_error_backtrace
- 支持PIVOT和UNPIVOT语法
- mod函数兼容
- 支持聚集函数嵌套
- ORDER BY/GROUP BY场景兼容
- 支持在建表后修改表日志属性
- INSERT支持ON CONFLICT子句
- 支持AUTHID CURRENT_USER
- PBE模式支持存储过程out出参
- 数据库安全
- 企业级特性
- 应用开发接口
- AI能力
- 中间件
- 负载管理
- 安装指南
- 升级指南
- 管理指南
- 高可用指南
- AI特性指南
- 安全指南
- 开发者指南
- 应用程序开发教程
- 开发规范
- 基于JDBC开发
- JDBC包、驱动类和环境类
- 开发流程
- 加载驱动
- 连接数据库
- 连接数据库(以SSL方式)
- 连接数据库(UDS方式)
- 执行SQL语句
- 处理结果集
- 关闭连接
- 日志管理
- 示例:常用操作
- 示例:重新执行应用SQL
- 示例:通过本地文件导入导出数据
- 示例:从MY向MogDB进行数据迁移
- 示例:逻辑复制代码示例
- 示例:不同场景下连接数据库参数配置
- 示例:jdbc主备集群负载均衡
- JDBC接口参考
- 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常用参数参考
- JDBC发布记录
- 基于ODBC开发
- 基于libpq开发
- 基于Psycopg2开发
- 调试
- 存储过程
- 用户自定义函数
- PL/pgSQL-SQL过程语言
- 定时任务
- 自治事务
- 逻辑复制
- Extension
- MySQL兼容性说明
- Dolphin Extension
- Dolphin概述
- Dolphin安装
- Dolphin限制
- Dolphin语法介绍
- SQL参考
- 关键字
- 数据类型
- 函数和操作符
- 表达式
- DDL语法一览表
- DML语法一览表
- DCL语法一览表
- SQL语法
- 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
- 系统视图
- GUC参数说明
- 重设参数
- 存储过程
- 标识符说明
- SQL参考
- MySQL语法兼容性评估工具
- Dolphin Extension
- 物化视图
- 分区管理
- 应用程序开发教程
- 性能优化指南
- 参考指南
- 系统表及系统视图
- 系统表和系统视图概述
- 查看系统表
- 系统表
- 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
- 系统视图
- GET_GLOBAL_PREPARED_XACTS(废弃)
- 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_SHARED_MEMORY_DETAIL
- 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
- IOS_STATUS
- 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
- PATCH_INFORMATION_TABLE
- 系统函数
- 逻辑操作符
- 比较操作符
- 字符处理函数和操作符
- 二进制字符串函数和操作符
- 位串函数和操作符
- 模式匹配操作符
- 数字操作函数和操作符
- 时间和日期处理函数和操作符
- 类型转换函数
- 几何函数和操作符
- 网络地址函数和操作符
- 文本检索函数和操作符
- JSON/JSONB函数和操作符
- HLL函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 范围函数和操作符
- 聚集函数
- 窗口函数(分析函数)
- 安全函数
- 账本数据库的函数
- 密态等值的函数
- 返回集合的函数
- 条件表达式函数
- 系统信息函数
- 系统管理函数
- 统计信息函数
- 触发器函数
- 事件触发器函数
- HashFunc函数
- 提示信息函数
- 全局临时表函数
- 故障注入系统函数
- AI特性函数
- 动态数据脱敏函数
- 其他系统函数
- 内部函数
- Global SysCache特性函数
- 数据损坏检测修复函数
- XML类型函数
- 废弃函数
- 支持的数据类型
- SQL语法
- 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参考
- GUC参数说明
- 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
- 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_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
- DBE_PLDEBUGGER Schema
- DBE_PLDEBUGGER.turn_on
- DBE_PLDEBUGGER.turn_off
- DBE_PLDEBUGGER.local_debug_server_info
- DBE_PLDEBUGGER.attach
- DBE_PLDEBUGGER.info_locals
- 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.disable_breakpoint
- DBE_PLDEBUGGER.enable_breakpoint
- DBE_PLDEBUGGER.finish
- DBE_PLDEBUGGER.set_var
- DB4AI Schema
- DBE_PLDEVELOPER
- DBE_SQL_UTIL Schema
- 工具参考
- 工具一览表
- 客户端工具
- 服务端工具
- 系统内部使用的工具
- dsscmd
- dssserver
- mogdb
- gs_backup
- gs_basebackup
- gs_ctl
- gs_initdb
- gs_install
- 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
- MogDB可运行脚本功能说明
- gs_collector工具支持收集的系统表和视图列表
- 数据库报错信息
- SQL标准错误码说明
- 第三方库错误码说明
- 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 07500
- GAUSS 50000 - GAUSS 50999
- GAUSS 51000 - GAUSS 51999
- GAUSS 52000 - GAUSS 52999
- GAUSS 53000 - GAUSS 53699
- 错误日志信息参考
- 系统表及系统视图
- 故障诊断指南
- 源码解析
- 常见问题解答 (FAQs)
- 术语表
- 通信矩阵
- Mogeaver
gs_collector
背景信息
当MogDB发生故障时,使用此工具收集OS信息、日志信息以及配置文件等信息,来定位问题。可以使用-C参数,指定收集不同的信息内容,具体支持收集的内容信息如表1所示。
TypeName | Content | 描述 | 是否默认收集 |
---|---|---|---|
System | HardWareInfoRunTimeInfo | 收集现在操作系统的状态信息: - HardWareInfo - Cpu(cat /proc/cpuinfo) - 内存(cat /proc/meminfo) - 磁盘(df -h) - RunTimeInfo: - topStatus(ps ux) - ioStat(iostat -xm 2 3) - 网络状态(cat /proc/net/dev) - 内存使用情况(free -m) |
是 |
Database | 具体列表见表工具支持收集的系统表和视图列表。 | 收集系统视图或者系统表的内容。 | 是,默认收集pg_locks,pg_stat_activity和 pg_thread_wait_status三个视图的信息。 |
Log | DataNodeClusterManager | 收集DataNode的pg_log和gs_profile 收集ClusterManager的日志信息包括: - om - gs_ctl - gs_guc - gs_initdb |
是 |
Config | DataNode | 收集DataNode的配置信息: - postgresql.conf - mogdb.state - pg_hba.conf - pg_control - pg_replslot - pg_ident.conf |
是 |
Gstack | DataNode | 利用gstack命令得到DataNode的当前堆栈信息。 | 否 |
CoreDump | gs_ctl、mogdb、GaussMaster、AioWorker、AlarmChecker、Archiver、Auditor、AutoVacLauncher、AutoVacWorker、AuxMain、BackendMode、BgWriter、BootStrap、Catchup、CBMWriter、Checkpointer、CommAuxStream、CommPoolCleane、CommRcvStream、CommRcvWorker、CommSendStream、CpMonitor、DataRcvWriter、DataReceiver、DataSender、ExtremeRTO、FencedUDFMaster、Heartbeater、JobExecutor、JobScheduler、LWLockMonitor、PageWriter、ParallelRecov、PercentileJob、Reaper、RemoteSrv、StartupProcess、StatCollector、Stream、SysLogger、ThdPoolListener、TwoPhaseCleaner、WalRcvWriter、WalReceiver、WalSender、WalWriter、WDRSnapshot、WlmArbiter、WlmCollector、WlmMonitor | 通过时间筛选mogdb进程的core文件。 注意: 关于Core的配置和方式请按照如下要求:在/proc/sys/mogdb/core_pattern文件中添加core文件的格式:core-%e-%p-%t。 |
否 |
XLog | DataNode 通过时间筛选收集xlog。 | 否 | |
Plan | * | 收集计划复现信息: - 用户输入*表示收集所有数据库上的计划复现信息。 - 用户输入具体的数据库名称表示收集指定数据库上的计划复现信息。 |
否 |
前提条件
日志收集工具依赖操作系统工具,例如gstack为其中一种,如果未安装该工具,则提示错误后,跳过该收集项。
语法
-
日志收集(非root用户)
gs_collector --begin-time="BEGINTIME" --end-time="ENDTIME" [-h HOSTNAME | -f HOSTFILE] [--keyword=KEYWORD] [--speed-limit=SPEED] [-o OUTPUT] [-l LOGFILE] [-C CONFIGFILE]
-
显示帮助信息
gs_collector -? | --help
-
显示版本号信息
gs_collector -V | --version
参数说明
-
-h
收集信息的主机名称。
取值范围: 主机名称,如果不指定则默认收集所有主机的信息。
-
-f
主机名称列表文件。该文件为纯文本格式。
说明: -f和-h参数不能同时使用。
取值范围: 主机名称列表。
-
-o
将收集日志以压缩包形式输出到指定的文件夹。
不指定则将检查结果以压缩包形式输出到配置文件中tmpMppdbPath选项所指定的目录中。
若配置文件中未配置tmpMppdbPath选项,则默认将检查结果以压缩包形式输出到“/tmp/用户名_mppdb/”目录中。
-
-l
指定的日志文件以及存放路径。
-
-C
指定待收集内容的配置文件,利用TypeName指定需要收集的信息类型,利用Content指定每一类信息的具体内容,利用Count指定此类信息收集的次数,利用Interval指定收集间隔,单位为秒。
TypeName和Content不允许缺失或者内容为空。
Interval和Count可以不指定,如果没有指定Count,则默认收集一次。如果没有指定Interval则表示间隔为0秒,Interval和Count的值不能小于0。
如果不指定则使用默认的配置文件。
配置文件格式采用json格式,模板如下:
{ "Collect": [ {"TypeName": "name", "Content":"value","Interval":"seconds", "Count":"count"} ] }
说明:
TypeName和对应的Content取值范围见表1 gs_collector内容收集对照表。 对于Log、CoreDump、Config和XLog四种类型,Interval和Count参数不生效。
默认配置文件内容如下:
{ "Collect":[ {"TypeName": "System", "Content":"RunTimeInfo, HardWareInfo","Interval":"0", "Count":"1"}, {"TypeName": "Log", "Content" : "DataNode,ClusterManager", "Interval":"0", "Count":"1"}, {"TypeName": "Database", "Content": "pg_locks,pg_stat_activity,pg_thread_wait_status","Interval":"0", "Count":"1"}, {"TypeName": "Config", "Content": "DataNode", "Interval":"0", "Count":"1"} ] }
-
--keyword=KEYWORD
包含关键字KEYWORD的日志文件。
若关键字KEYWORD中含有空格,需要使用双引号包围。
说明: 性能日志为二进制日志,关键字搜集功能不支持该日志的搜集。
-
--begin-time
日志的开始时间。输入格式为“yyyymmdd hh:mm”。该值需要比日志的最后修改时间小。
-
--end-time
日志的结束时间。输入格式为“yyyymmdd hh:mm”。该值需要比日志的创建时间大,且需大于--begin-time设置的时间。
-
--speed-limit
日志收集时的收集速率,输入格式为非负整数,单位为MB/s。
该参数主要是为了防止日志收集过程中产生过高的磁盘或网络IO,导致数据库节点故障(如果它们与$GAUSSLOG/$PGHOST部署在同一个磁盘上)。该值应当不超过MogDB内上述磁盘IO与网络IO速率的最小值的1/3。
-
-?, --help
显示帮助信息。
-
-V, --version
显示版本号信息。
示例
执行如下命令收集OS信息和日志信息。
gs_collector --begin-time="20180131 23:00" --end-time="20180201 20:00" -h plat1
Successfully parsed the configuration file.
create Dir.
Successfully create dir.
do system check interval 0 : count 1
Collecting OS information.
Successfully collected OS information.
do database check interval 0 : count 1
Collecting catalog statistics.
Successfully collected catalog statistics.
do log check interval 0 : count 1
Collecting Log files.
Successfully collected Log files.
do Config check 0:1
Collecting Config files.
Successfully collected Config files.
Collecting files.
Successfully collected files.
All results are stored in $PGHOST/collector_20200624_134541.tar.gz.
查看收集到的统计信息。
tar -zxvf $PGHOST/collector_20200624_134541.tar.gz
collector_20200624_134541/
collector_20200624_134541/plat1.tar.gz
collector_20200624_134541/Detail.log
collector_20200624_134541/Summary.log
cd collector_20200624_134541
tar -zxvf plat1.tar.gz
plat1/
plat1/catalogfiles/
plat1/catalogfiles/gs_clean_20200624_134548283647.txt
plat1/catalogfiles/dn_6001_pg_locks_20200624_134547746215.csv
plat1/catalogfiles/dn_6001_pg_thread_wait_status_20200624_134548068716.csv
plat1/catalogfiles/dn_6001_pg_stat_activity_20200624_134547851117.csv
plat1/configfiles/
plat1/logfiles/
plat1/logfiles/log_20200624_134548540916.tar.gz
plat1/coreDumpfiles/
plat1/gstackfiles/
plat1/systemfiles/
plat1/systemfiles/OS_information_20200624_134542218134.txt
plat1/systemfiles/database_system_info_20200624_134546282006.txt
plat1/planSimulatorfiles/
plat1/xlogfiles/
cd plat1/logfiles/
tar -zxvf log_20200624_134548540916.tar.gz
./
./om/
./om/gs_preinstall-2020-06-24_113654.log
./om/gs_local-2020-06-24_113710.log
./om/gs_install-2020-06-24_113911.log
./om/gs_checkperf-2020-06-24_114311.log
./om/gs_collector-2020-06-24_114240.log
./om/gs_backup-2020-06-24_114101.log
./om/gs_om-2020-06-24_114052.log
./bin/
./bin/gs_initdb/
./bin/gs_initdb/gs_initdb-2020-06-24_114010-current.log
./bin/gs_guc/
./bin/gs_guc/gs_guc-2020-06-24_114033-current.log
./bin/gs_ctl/
./bin/gs_ctl/gs_ctl-2020-06-24_114041-current.log
./pg_log/
./pg_log/dn_6001/
./pg_log/dn_6001/postgresql-2020-06-24_114043.log
./pg_log/dn_6001/postgresql-2020-06-24_114330.log
./pg_log/dn_6001/postgresql-2020-06-24_114316.log
./gs_profile/
./gs_profile/dn_6001_6002/
./gs_profile/dn_6001_6002/postgresql-2020-06-24_114330.prf
./gs_profile/dn_6001_6002/postgresql-2020-06-24_114316.prf
./gs_profile/dn_6001_6002/postgresql-2020-06-24_114043.prf