数据仓库服务 GaussDB(DWS)
数据仓库服务 GaussDB(DWS)
- 最新动态
- 功能总览
- 服务公告
- 产品介绍
- 计费说明
- 快速入门
-
用户指南
- GaussDB(DWS)使用流程
- 准备工作
- 创建GaussDB(DWS)集群
- 连接GaussDB(DWS)集群
- 创建GaussDB(DWS)数据库和用户
- 迁移业务数据至GaussDB(DWS)集群
- GaussDB(DWS)集群数据安全与加密
- GaussDB(DWS)集群管理
-
GaussDB(DWS)集群运维
- 在监控面板(DMS)查看DWS集群监控
- 在Cloud Eye查看GaussDB(DWS)集群监控
- 监控并诊断GaussDB(DWS)集群
-
查看并订阅GaussDB(DWS)集群告警
- 告警管理简介
- 告警规则
- 订阅告警通知
-
告警处理
- DWS_2000000001 DWS集群节点CPU使用率超阈值
- DWS_2000000006 DWS集群节点数据盘使用率超阈值
- DWS_2000000009 DWS集群节点数据盘I/O利用率超阈值
- DWS_2000000012 DWS集群节点数据盘时延超阈值
- DWS_2000000016 DWS集群查询语句触发下盘量超阈值
- DWS_2000000017 DWS集群查询语句堆积数量超阈值
- DWS_2000000018 DWS集群默认资源池队列阻塞
- DWS_2000000020 DWS集群的SQL探针耗时超阈值
- DWS_2000000023 DWS集群中存在持有锁过长的vacuum full操作
- DWS_2000000026 DWS集群CN下盘量超阈值
- DWS_2000000027 DWS集群节点实例内存使用率超阈值
- DWS_2000000028 DWS集群节点动态内存使用率超阈值
- DWS_2000000029 DWS集群资源池磁盘使用率超阈值
- DWS_2000000030 DWS集群会话数量使用率超阈值
- DWS_2000000031 DWS集群活跃会话数量使用率超阈值
- DWS_2000000032 DWS集群数据库死锁数量超阈值
- DWS_2000000033 DWS集群数据库会话使用率超阈值
- 1078919264 DWS数据库磁盘剩余容量预警
- 1078919265 DWS数据库磁盘剩余容量不足
- 1078919266 DWS数据库磁盘剩余容量严重不足
- 1078919169 DWS数据实例连接数超限
- 查看并订阅GaussDB(DWS)集群事件
- GaussDB(DWS)常用运维命令集
- 备份与恢复DWS集群
- GaussDB(DWS)集群节点扩缩容
- GaussDB(DWS)集群规格变更
- GaussDB(DWS)集群容灾管理
- GaussDB(DWS)集群升级
- GaussDB(DWS)集群日志管理
- GaussDB(DWS)集群状态异常操作
- Vacuum回收GaussDB(DWS)空间
- 授权GaussDB(DWS)集群运维账号
- 最佳实践
- 数据迁移与同步
-
开发指南
-
开发指南(9.1.0.x)
- 使用前必读
- GaussDB(DWS)开发设计建议
- 创建和管理GaussDB(DWS)数据库对象
- Oracle、Teradata和MySQL语法兼容性差异
- GaussDB(DWS)数据库安全管理
- 查询GaussDB(DWS)数据
- GaussDB(DWS)排序规则
- GaussDB(DWS)用户自定义函数
- GaussDB(DWS)存储过程
- 使用PostGIS Extension
- 使用JDBC或ODBC进行GaussDB(DWS)二次开发
- GaussDB(DWS)资源监控
- GaussDB(DWS)性能调优
-
GaussDB(DWS)系统表和系统视图
- 系统表和系统视图概述
-
系统表
- GS_BLOCKLIST_QUERY
- GS_BLOCKLIST_SQL
- GS_OBSSCANINFO
- GS_RESPOOL_RESOURCE_HISTORY
- GS_WLM_INSTANCE_HISTORY
- GS_WLM_OPERATOR_INFO
- GS_WLM_SESSION_INFO
- GS_WLM_USER_RESOURCE_HISTORY
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTHID
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- PG_BLOCKLISTS
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DB_ROLE_SETTING
- PG_DEFAULT_ACL
- PG_DEPEND
- PG_DESCRIPTION
- PG_ENUM
- PG_EXCEPT_RULE
- PG_EXTERNAL_NAMESPACE
- PG_EXTENSION
- PG_EXTENSION_DATA_SOURCE
- PG_FINE_DR_INFO
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_FOREIGN_TABLE
- PG_INDEX
- PG_INHERITS
- PG_JOB_INFO
- PG_JOBS
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_MATVIEW
- PG_NAMESPACE
- PG_OBJECT
- PG_OBSSCANINFO
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PARTITION
- PG_PLTEMPLATE
- PG_PROC
- PG_PUBLICATION
- PG_PUBLICATION_NAMESPACE
- PG_PUBLICATION_REL
- PG_RANGE
- PG_REDACTION_COLUMN
- PG_REDACTION_POLICY
- PG_RELFILENODE_SIZE
- PG_RLSPOLICY
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_SECLABEL
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_STAT_OBJECT
- PG_SUBSCRIPTION
- 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_ACTION
- PGXC_CLASS
- PGXC_GROUP
- PGXC_NODE
- PLAN_TABLE_DATA
- SNAPSHOT
- TABLES_SNAP_TIMESTAMP
- 性能视图快照系统表
-
系统视图
- ALL_ALL_TABLES
- ALL_CONSTRAINTS
- ALL_CONS_COLUMNS
- ALL_COL_COMMENTS
- ALL_DEPENDENCIES
- ALL_IND_COLUMNS
- ALL_IND_EXPRESSIONS
- ALL_INDEXES
- ALL_OBJECTS
- ALL_PROCEDURES
- ALL_SEQUENCES
- ALL_SOURCE
- ALL_SYNONYMS
- ALL_TAB_COLUMNS
- ALL_TAB_COMMENTS
- ALL_TABLES
- ALL_USERS
- ALL_VIEWS
- DBA_DATA_FILES
- DBA_USERS
- DBA_COL_COMMENTS
- DBA_CONSTRAINTS
- DBA_CONS_COLUMNS
- DBA_IND_COLUMNS
- DBA_IND_EXPRESSIONS
- DBA_IND_PARTITIONS
- DBA_INDEXES
- DBA_OBJECTS
- DBA_PART_INDEXES
- DBA_PART_TABLES
- DBA_PROCEDURES
- DBA_SEQUENCES
- DBA_SOURCE
- DBA_SYNONYMS
- DBA_TAB_COLUMNS
- DBA_TAB_COMMENTS
- DBA_TAB_PARTITIONS
- DBA_TABLES
- DBA_TABLESPACES
- DBA_TRIGGERS
- DBA_VIEWS
- DUAL
- GET_ALL_TSC_INFO
- GET_TSC_INFO
- GLOBAL_COLUMN_TABLE_IO_STAT
- GLOBAL_REDO_STAT
- GLOBAL_REL_IOSTAT
- GLOBAL_ROW_TABLE_IO_STAT
- GLOBAL_STAT_DATABASE
- GLOBAL_TABLE_CHANGE_STAT
- GLOBAL_TABLE_STAT
- GLOBAL_WORKLOAD_SQL_COUNT
- GLOBAL_WORKLOAD_SQL_ELAPSE_TIME
- GLOBAL_WORKLOAD_TRANSACTION
- GS_ALL_CONTROL_GROUP_INFO
- GS_BLOCKLIST_QUERY
- GS_BLOCKLIST_SQL
- GS_CLUSTER_RESOURCE_INFO
- GS_COLUMN_TABLE_IO_STAT
- GS_OBS_READ_TRAFFIC
- GS_OBS_WRITE_TRAFFIC
- GS_INSTR_UNIQUE_SQL
- GS_NODE_STAT_RESET_TIME
- GS_OBS_LATENCY
- GS_QUERY_MONITOR
- GS_QUERY_RESOURCE_INFO
- GS_REL_IOSTAT
- GS_RESPOOL_RUNTIME_INFO
- GS_RESPOOL_RESOURCE_INFO
- GS_RESPOOL_MONITOR
- GS_ROW_TABLE_IO_STAT
- GS_SESSION_CPU_STATISTICS
- GS_SESSION_MEMORY_STATISTICS
- GS_SQL_COUNT
- GS_STAT_DB_CU
- GS_STAT_SESSION_CU
- GS_TABLE_CHANGE_STAT
- GS_TABLE_STAT
- GS_TOTAL_NODEGROUP_MEMORY_DETAIL
- GS_USER_MONITOR
- GS_USER_TRANSACTION
- GS_VIEW_DEPENDENCY
- GS_VIEW_DEPENDENCY_PATH
- GS_VIEW_INVALID
- GS_WAIT_EVENTS
- GS_WLM_OPERATOR_INFO
- GS_WLM_OPERATOR_HISTORY
- GS_WLM_OPERATOR_STATISTICS
- GS_WLM_SESSION_INFO
- GS_WLM_SESSION_HISTORY
- GS_WLM_SESSION_STATISTICS
- GS_WLM_SQL_ALLOW
- GS_WORKLOAD_SQL_COUNT
- GS_WORKLOAD_SQL_ELAPSE_TIME
- GS_WORKLOAD_TRANSACTION
- MPP_TABLES
- PG_AVAILABLE_EXTENSION_VERSIONS
- PG_AVAILABLE_EXTENSIONS
- PG_BULKLOAD_STATISTICS
- PG_COMM_CLIENT_INFO
- PG_COMM_DELAY
- PG_COMM_STATUS
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_QUERY_SPEED
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_INVALID_BACKENDS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GLOBAL_TEMP_ATTACHED_PIDS
- PG_GROUP
- PG_INDEXES
- PG_JOB
- PG_JOB_PROC
- PG_JOB_SINGLE
- PG_LIFECYCLE_DATA_DISTRIBUTE
- PG_LOCKS
- PG_LWLOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_POOLER_STATUS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_PUBLICATION_TABLES
- PG_QUERYBAND_ACTION
- PG_REPLICATION_SLOTS
- PG_ROLES
- PG_RULES
- PG_RUNNING_XACTS
- PG_SECLABELS
- PG_SEQUENCES
- PG_SESSION_WLMSTAT
- PG_SESSION_IOSTAT
- PG_SETTINGS
- PG_SHADOW
- PG_SHARED_MEMORY_DETAIL
- 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_GET_MEM_MBYTES_RESERVED
- 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_THREAD_WAIT_STATUS
- PG_TABLES
- PG_TDE_INFO
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_SCHEMA_INFO
- PG_TOTAL_USER_RESOURCE_INFO
- PG_USER
- PG_USER_MAPPINGS
- PG_VIEWS
- PG_WLM_STATISTICS
- PGXC_BULKLOAD_PROGRESS
- PGXC_BULKLOAD_INFO
- PGXC_BULKLOAD_STATISTICS
- PGXC_COLUMN_TABLE_IO_STAT
- PGXC_COMM_CLIENT_INFO
- PGXC_COMM_DELAY
- PGXC_COMM_RECV_STREAM
- PGXC_COMM_SEND_STREAM
- PGXC_COMM_STATUS
- PGXC_COMM_QUERY_SPEED
- PGXC_DEADLOCK
- PGXC_DISK_CACHE_STATS
- PGXC_DISK_CACHE_ALL_STATS
- PGXC_DISK_CACHE_PATH_INFO
- PGXC_GET_STAT_ALL_TABLES
- PGXC_GET_STAT_ALL_PARTITIONS
- PGXC_GET_TABLE_SKEWNESS
- PGXC_GLOBAL_TEMP_ATTACHED_PIDS
- PGXC_GTM_SNAPSHOT_STATUS
- PGXC_INSTANCE_TIME
- PGXC_LOCKWAIT_DETAIL
- PGXC_INSTR_UNIQUE_SQL
- PGXC_LOCK_CONFLICTS
- PGXC_LWLOCKS
- PGXC_MEMORY_DEBUG_INFO
- PGXC_NODE_ENV
- PGXC_NODE_STAT_RESET_TIME
- PGXC_OBS_IO_SCHEDULER_STATS
- PGXC_OBS_IO_SCHEDULER_PERIODIC_STATS
- PGXC_OS_RUN_INFO
- PGXC_OS_THREADS
- PGXC_POOLER_STATUS
- PGXC_PREPARED_XACTS
- PGXC_REDO_STAT
- PGXC_REL_IOSTAT
- PGXC_REPLICATION_SLOTS
- PGXC_RESPOOL_RUNTIME_INFO
- PGXC_RESPOOL_RESOURCE_INFO
- PGXC_RESPOOL_RESOURCE_HISTORY
- PGXC_ROW_TABLE_IO_STAT
- PGXC_RUNNING_XACTS
- PGXC_SETTINGS
- PGXC_SESSION_WLMSTAT
- PGXC_STAT_ACTIVITY
- PGXC_STAT_BAD_BLOCK
- PGXC_STAT_BGWRITER
- PGXC_STAT_DATABASE
- PGXC_STAT_OBJECT
- PGXC_STAT_REPLICATION
- PGXC_STAT_TABLE_DIRTY
- PGXC_STAT_WAL
- PGXC_SQL_COUNT
- PGXC_TABLE_CHANGE_STAT
- PGXC_TABLE_STAT
- PGXC_THREAD_WAIT_STATUS
- PGXC_TOTAL_MEMORY_DETAIL
- PGXC_TOTAL_SCHEMA_INFO
- PGXC_TOTAL_SCHEMA_INFO_ANALYZE
- PGXC_TOTAL_USER_RESOURCE_INFO
- PGXC_USER_TRANSACTION
- PGXC_VARIABLE_INFO
- PGXC_WAIT_DETAIL
- PGXC_WAIT_EVENTS
- PGXC_WLM_OPERATOR_HISTORY
- PGXC_WLM_OPERATOR_INFO
- PGXC_WLM_OPERATOR_STATISTICS
- PGXC_WLM_SESSION_INFO
- PGXC_WLM_SESSION_HISTORY
- PGXC_WLM_SESSION_STATISTICS
- PGXC_WLM_TABLE_DISTRIBUTION_SKEWNESS
- PGXC_WLM_USER_RESOURCE_HISTORY
- PGXC_WLM_WORKLOAD_RECORDS
- PGXC_WORKLOAD_SQL_COUNT
- PGXC_WORKLOAD_SQL_ELAPSE_TIME
- PGXC_WORKLOAD_TRANSACTION
- PLAN_TABLE
- PV_FILE_STAT
- PV_INSTANCE_TIME
- PV_MATVIEW_DETAIL
- PV_OS_RUN_INFO
- PV_SESSION_MEMORY
- PV_SESSION_MEMORY_DETAIL
- PV_SESSION_STAT
- PV_SESSION_TIME
- PV_TOTAL_MEMORY_DETAIL
- PV_REDO_STAT
- PV_RUNTIME_ATTSTATS
- PV_RUNTIME_RELSTATS
- REDACTION_COLUMNS
- REDACTION_POLICIES
- REMOTE_TABLE_STAT
- SHOW_TSC_INFO
- SHOW_ALL_TSC_INFO
- USER_COL_COMMENTS
- USER_CONSTRAINTS
- USER_CONS_COLUMNS
- USER_INDEXES
- USER_IND_COLUMNS
- USER_IND_EXPRESSIONS
- USER_IND_PARTITIONS
- USER_JOBS
- USER_OBJECTS
- USER_PART_INDEXES
- USER_PART_TABLES
- USER_PROCEDURES
- USER_SEQUENCES
- USER_SOURCE
- USER_SYNONYMS
- USER_TAB_COLUMNS
- USER_TAB_COMMENTS
- USER_TAB_PARTITIONS
- USER_TABLES
- USER_TRIGGERS
- USER_VIEWS
- V$SESSION
- V$SESSION_LONGOPS
- GaussDB(DWS)数据库GUC参数
- GaussDB(DWS)开发者术语表
- 实时数仓
-
开发指南(9.1.1.x)
- 使用前必读
- GaussDB(DWS)开发设计建议
- 创建和管理GaussDB(DWS)数据库对象
- Oracle、Teradata和MySQL语法兼容性差异
- GaussDB(DWS)数据库安全管理
- 查询GaussDB(DWS)数据
- GaussDB(DWS)排序规则
- GaussDB(DWS)物化视图
- GaussDB(DWS)用户自定义函数
- GaussDB(DWS)存储过程
- 使用PostGIS Extension
- 使用JDBC或ODBC进行GaussDB(DWS)二次开发
- GaussDB(DWS)资源监控
- GaussDB(DWS)性能调优
-
GaussDB(DWS)系统表和系统视图
- 系统表和系统视图概述
-
系统表
- GS_BLOCKLIST_QUERY
- GS_BLOCKLIST_SQL
- GS_OBSSCANINFO
- GS_RESPOOL_RESOURCE_HISTORY
- GS_WLM_INSTANCE_HISTORY
- GS_WLM_OPERATOR_INFO
- GS_WLM_SESSION_INFO
- GS_WLM_USER_RESOURCE_HISTORY
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTHID
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- PG_BLOCKLISTS
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DB_ROLE_SETTING
- PG_DB_FILE
- PG_DEFAULT_ACL
- PG_DEPEND
- PG_DESCRIPTION
- PG_ENUM
- PG_EXCEPT_RULE
- PG_EXTERNAL_NAMESPACE
- PG_EXTENSION
- PG_EXTENSION_DATA_SOURCE
- PG_FINE_DR_INFO
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_FOREIGN_TABLE
- PG_INDEX
- PG_INHERITS
- PG_JOB_INFO
- PG_JOBS
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_MATVIEW
- PG_NAMESPACE
- PG_OBJECT
- PG_OBSSCANINFO
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PARTITION
- PG_PLAN_BASELINE
- PG_PLTEMPLATE
- PG_PROC
- PG_PUBLICATION
- PG_PUBLICATION_NAMESPACE
- PG_PUBLICATION_REL
- PG_RANGE
- PG_REDACTION_COLUMN
- PG_REDACTION_POLICY
- PG_RELFILENODE_SIZE
- PG_RLSPOLICY
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_SECLABEL
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_STAT_OBJECT
- PG_SUBSCRIPTION
- 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_ACTION
- PGXC_CLASS
- PGXC_GROUP
- PGXC_NODE
- PLAN_TABLE_DATA
- SNAPSHOT
- SQL_OUTLINE
- TABLES_SNAP_TIMESTAMP
- 性能视图快照系统表
-
系统视图
- ALL_ALL_TABLES
- ALL_CONSTRAINTS
- ALL_CONS_COLUMNS
- ALL_COL_COMMENTS
- ALL_DEPENDENCIES
- ALL_IND_COLUMNS
- ALL_IND_EXPRESSIONS
- ALL_INDEXES
- ALL_OBJECTS
- ALL_PROCEDURES
- ALL_SEQUENCES
- ALL_SOURCE
- ALL_SYNONYMS
- ALL_TAB_COLUMNS
- ALL_TAB_COMMENTS
- ALL_TABLES
- ALL_USERS
- ALL_VIEWS
- DBA_DATA_FILES
- DBA_USERS
- DBA_COL_COMMENTS
- DBA_CONSTRAINTS
- DBA_CONS_COLUMNS
- DBA_IND_COLUMNS
- DBA_IND_EXPRESSIONS
- DBA_IND_PARTITIONS
- DBA_INDEXES
- DBA_OBJECTS
- DBA_PART_INDEXES
- DBA_PART_TABLES
- DBA_PROCEDURES
- DBA_SEQUENCES
- DBA_SOURCE
- DBA_SYNONYMS
- DBA_TAB_COLUMNS
- DBA_TAB_COMMENTS
- DBA_TAB_PARTITIONS
- DBA_TABLES
- DBA_TABLESPACES
- DBA_TRIGGERS
- DBA_VIEWS
- DUAL
- GET_ALL_TSC_INFO
- GET_TABLESPACE_OBS_FILE
- GET_TSC_INFO
- GLOBAL_COLUMN_TABLE_IO_STAT
- GLOBAL_REDO_STAT
- GLOBAL_REL_IOSTAT
- GLOBAL_ROW_TABLE_IO_STAT
- GLOBAL_STAT_DATABASE
- GLOBAL_TABLE_CHANGE_STAT
- GLOBAL_TABLE_STAT
- GLOBAL_WORKLOAD_SQL_COUNT
- GLOBAL_WORKLOAD_SQL_ELAPSE_TIME
- GLOBAL_WORKLOAD_TRANSACTION
- GS_ALL_CONTROL_GROUP_INFO
- GS_BLOCKLIST_QUERY
- GS_BLOCKLIST_SQL
- GS_CLUSTER_RESOURCE_INFO
- GS_COLUMN_TABLE_IO_STAT
- GS_LSC_DBSTAT_INFO
- GS_LSC_MEMORY_DETAIL
- GS_OBS_READ_TRAFFIC
- GS_OBS_WRITE_TRAFFIC
- GS_INSTR_UNIQUE_SQL
- GS_NODE_STAT_RESET_TIME
- GS_OBS_LATENCY
- GS_QUERY_MONITOR
- GS_QUERY_RESOURCE_INFO
- GS_REL_IOSTAT
- GS_RESPOOL_RUNTIME_INFO
- GS_RESPOOL_RESOURCE_INFO
- GS_RESPOOL_MONITOR
- GS_ROW_TABLE_IO_STAT
- GS_SESSION_CPU_STATISTICS
- GS_SESSION_MEMORY_STATISTICS
- GS_SQL_COUNT
- GS_STAT_DB_CU
- GS_STAT_SESSION_CU
- GS_TABLE_CHANGE_STAT
- GS_TABLE_STAT
- GS_TOTAL_NODEGROUP_MEMORY_DETAIL
- GS_USER_MONITOR
- GS_USER_TRANSACTION
- GS_VIEW_DEPENDENCY
- GS_VIEW_DEPENDENCY_PATH
- GS_VIEW_INVALID
- GS_WAIT_EVENTS
- GS_WLM_OPERATOR_INFO
- GS_WLM_OPERATOR_HISTORY
- GS_WLM_OPERATOR_STATISTICS
- GS_WLM_SESSION_INFO
- GS_WLM_SESSION_HISTORY
- GS_WLM_SESSION_STATISTICS
- GS_WLM_SQL_ALLOW
- GS_WORKLOAD_SQL_COUNT
- GS_WORKLOAD_SQL_ELAPSE_TIME
- GS_WORKLOAD_TRANSACTION
- MPP_TABLES
- PG_AVAILABLE_EXTENSION_VERSIONS
- PG_AVAILABLE_EXTENSIONS
- PG_BULKLOAD_STATISTICS
- PG_COMM_CLIENT_INFO
- PG_COMM_DELAY
- PG_COMM_STATUS
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_QUERY_SPEED
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_INVALID_BACKENDS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GLOBAL_TEMP_ATTACHED_PIDS
- PG_GROUP
- PG_INDEXES
- PG_JOB
- PG_JOB_PROC
- PG_JOB_SINGLE
- PG_LIFECYCLE_DATA_DISTRIBUTE
- PG_LOCKS
- PG_LOCKWAIT_DETAIL
- PG_LWLOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_POOLER_STATUS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_PUBLICATION_TABLES
- PG_QUERYBAND_ACTION
- PG_REPLICATION_SLOTS
- PG_ROLES
- PG_RULES
- PG_RUNNING_XACTS
- PG_SECLABELS
- PG_SEQUENCES
- PG_SESSION_WLMSTAT
- PG_SESSION_IOSTAT
- PG_SETTINGS
- PG_SHADOW
- PG_SHARED_MEMORY_DETAIL
- 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_GET_MEM_MBYTES_RESERVED
- 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_THREAD_WAIT_STATUS
- PG_TABLES
- PG_TDE_INFO
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_SCHEMA_INFO
- PG_TOTAL_USER_RESOURCE_INFO
- PG_USER
- PG_USER_MAPPINGS
- PG_VIEWS
- PG_WLM_STATISTICS
- PGXC_BULKLOAD_PROGRESS
- PGXC_BULKLOAD_INFO
- PGXC_BULKLOAD_STATISTICS
- PGXC_COLUMN_TABLE_IO_STAT
- PGXC_COMM_CLIENT_INFO
- PGXC_COMM_DELAY
- PGXC_COMM_RECV_STREAM
- PGXC_COMM_SEND_STREAM
- PGXC_COMM_STATUS
- PGXC_COMM_QUERY_SPEED
- PGXC_DEADLOCK
- PGXC_DISK_CACHE_STATS
- PGXC_DISK_CACHE_ALL_STATS
- PGXC_DISK_CACHE_PATH_INFO
- PGXC_GET_STAT_ALL_TABLES
- PGXC_GET_STAT_ALL_PARTITIONS
- PGXC_GET_TABLE_SKEWNESS
- PGXC_GET_TABLESPACE_OBS_FILE
- PGXC_GLOBAL_TEMP_ATTACHED_PIDS
- PGXC_GTM_SNAPSHOT_STATUS
- PGXC_INSTANCE_TIME
- PGXC_LOCKWAIT_DETAIL
- PGXC_INSTR_UNIQUE_SQL
- PGXC_LOCK_CONFLICTS
- PGXC_LWLOCKS
- PGXC_MEMORY_DEBUG_INFO
- PGXC_NODE_ENV
- PGXC_NODE_STAT_RESET_TIME
- PGXC_OBS_IO_SCHEDULER_STATS
- PGXC_OBS_IO_SCHEDULER_PERIODIC_STATS
- PGXC_OS_RUN_INFO
- PGXC_OS_THREADS
- PGXC_POOLER_STATUS
- PGXC_PREPARED_XACTS
- PGXC_QUERY_INFO
- PGXC_REDO_STAT
- PGXC_REL_IOSTAT
- PGXC_REPLICATION_SLOTS
- PGXC_RESPOOL_RUNTIME_INFO
- PGXC_RESPOOL_RESOURCE_INFO
- PGXC_RESPOOL_RESOURCE_HISTORY
- PGXC_ROW_TABLE_IO_STAT
- PGXC_RUNNING_XACTS
- PGXC_SETTINGS
- PGXC_SESSION_WLMSTAT
- PGXC_STAT_ACTIVITY
- PGXC_STAT_BAD_BLOCK
- PGXC_STAT_BGWRITER
- PGXC_STAT_DATABASE
- PGXC_STAT_OBJECT
- PGXC_STAT_REPLICATION
- PGXC_STAT_TABLE_DIRTY
- PGXC_STAT_WAL
- PGXC_SQL_COUNT
- PGXC_TABLE_CHANGE_STAT
- PGXC_TABLE_STAT
- PGXC_THREAD_WAIT_STATUS
- PGXC_TOTAL_MEMORY_DETAIL
- PGXC_TOTAL_SCHEMA_INFO
- PGXC_TOTAL_SCHEMA_INFO_ANALYZE
- PGXC_TOTAL_USER_RESOURCE_INFO
- PGXC_USER_TRANSACTION
- PGXC_VARIABLE_INFO
- PGXC_WAIT_DETAIL
- PGXC_WAIT_EVENTS
- PGXC_WLM_OPERATOR_HISTORY
- PGXC_WLM_OPERATOR_INFO
- PGXC_WLM_OPERATOR_STATISTICS
- PGXC_WLM_SESSION_INFO
- PGXC_WLM_SESSION_HISTORY
- PGXC_WLM_SESSION_STATISTICS
- PGXC_WLM_TABLE_DISTRIBUTION_SKEWNESS
- PGXC_WLM_USER_RESOURCE_HISTORY
- PGXC_WLM_WORKLOAD_RECORDS
- PGXC_WORKLOAD_SQL_COUNT
- PGXC_WORKLOAD_SQL_ELAPSE_TIME
- PGXC_WORKLOAD_TRANSACTION
- PLAN_TABLE
- PV_FILE_STAT
- PV_INSTANCE_TIME
- PV_MATVIEW_DETAIL
- PV_OS_RUN_INFO
- PV_SESSION_MEMORY
- PV_SESSION_MEMORY_DETAIL
- PV_SESSION_STAT
- PV_SESSION_TIME
- PV_TOTAL_MEMORY_DETAIL
- PV_REDO_STAT
- PV_RUNTIME_ATTSTATS
- PV_RUNTIME_RELSTATS
- REDACTION_COLUMNS
- REDACTION_POLICIES
- REMOTE_TABLE_STAT
- SHOW_TSC_INFO
- SHOW_ALL_TSC_INFO
- USER_COL_COMMENTS
- USER_CONSTRAINTS
- USER_CONS_COLUMNS
- USER_INDEXES
- USER_IND_COLUMNS
- USER_IND_EXPRESSIONS
- USER_IND_PARTITIONS
- USER_JOBS
- USER_OBJECTS
- USER_PART_INDEXES
- USER_PART_TABLES
- USER_PROCEDURES
- USER_SEQUENCES
- USER_SOURCE
- USER_SYNONYMS
- USER_TAB_COLUMNS
- USER_TAB_COMMENTS
- USER_TAB_PARTITIONS
- USER_TABLES
- USER_TRIGGERS
- USER_VIEWS
- V$SESSION
- V$SESSION_LONGOPS
- GaussDB(DWS)数据库GUC参数
- GaussDB(DWS)开发者术语表
- 实时数仓
- 历史版本
-
开发指南(9.1.0.x)
-
SQL语法参考
-
SQL语法参考(9.1.0.x)
- GaussDB(DWS) SQL概述
- GaussDB(DWS) SQL语法格式说明
- 与PostgreSQL的差异
- 关键字
- 数据类型
- 常量与宏
-
函数和操作符
- 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
- 数字操作函数和操作符
- 时间、日期处理函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 逻辑操作符
- 比较操作符
- 模式匹配操作符
- 聚集函数
- 窗口函数
- 类型转换函数
- JSON/JSONB函数和操作符
- 安全函数
- 条件表达式函数
- 范围函数和操作符
- 数据脱敏函数
- 位图函数和操作符
- UUID函数
- 文本检索函数和操作符
- HLL函数和操作符
- 返回集合的函数
- 几何函数和操作符
- 网络地址函数和操作符
- 系统信息函数
- 系统管理函数
- 备份恢复控制函数
- 数据库对象函数
- 残留文件管理函数
- 统计信息函数
- 触发器函数
- XML函数
- 调用栈记录函数
- Hudi系统函数
- 漏斗函数和留存函数
- EXTERNAL SCHEMA系统函数
- 存算分离函数
- 表达式
- 类型转换
- 全文检索
- 系统操作
- 事务管理
-
DDL语法
- DDL语法一览表
- ALTER BLOCK RULE
- ALTER DATABASE
- ALTER EXCEPT RULE
- ALTER EXTERNAL SCHEMA
- ALTER FOREIGN TABLE (GDS导入导出)
- ALTER FOREIGN TABLE (For HDFS or OBS)
- ALTER FUNCTION
- ALTER GROUP
- ALTER INDEX
- ALTER LARGE OBJECT
- ALTER MATERIALIZED VIEW
- ALTER PUBLICATION
- ALTER REDACTION POLICY
- ALTER RESOURCE POOL
- ALTER ROLE
- ALTER SUBSCRIPTION
- ALTER ROW LEVEL SECURITY POLICY
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TEXT SEARCH CONFIGURATION
- ALTER TEXT SEARCH DICTIONARY
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER VIEW
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- CREATE BARRIER
- CREATE BLOCK RULE
- CREATE DATABASE
- CREATE EXCEPT RULE
- CREATE EXTERNAL SCHEMA
- CREATE FOREIGN TABLE (GDS导入导出)
- CREATE FOREIGN TABLE (SQL on OBS or Hadoop)
- CREATE FOREIGN TABLE (OBS导入导出)
- CREATE FUNCTION
- CREATE GROUP
- CREATE INDEX
- CREATE MATERIALIZED VIEW
- CREATE PROCEDURE
- CREATE PUBLICATION
- CREATE REDACTION POLICY
- CREATE ROW LEVEL SECURITY POLICY
- CREATE RESOURCE POOL
- CREATE ROLE
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SUBSCRIPTION
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TEXT SEARCH CONFIGURATION
- CREATE TEXT SEARCH DICTIONARY
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE VIEW
- CURSOR
- DISCARD
- DROP BLOCK RULE
- DROP DATABASE
- DROP EXCEPT RULE
- DROP FOREIGN TABLE
- DROP FUNCTION
- DROP GROUP
- DROP INDEX
- DROP MATERIALIZED VIEW
- DROP OWNED
- DROP PUBLICATION
- DROP REDACTION POLICY
- DROP ROW LEVEL SECURITY POLICY
- DROP PROCEDURE
- DROP RESOURCE POOL
- DROP ROLE
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP SUBSCRIPTION
- DROP SYNONYM
- DROP TABLE
- DROP TEXT SEARCH CONFIGURATION
- DROP TEXT SEARCH DICTIONARY
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP VIEW
- FETCH
- MOVE
- REFRESH MATERIALIZED VIEW
- REINDEX
- RENAME TABLE
- RESET
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SHOW
- TRUNCATE
- VACUUM
- DML语法
- DCL语法
- DQL语法
- TCL语法
-
SQL语法参考(9.1.1.x)
- GaussDB(DWS) SQL概述
- GaussDB(DWS) SQL语法格式说明
- 与PostgreSQL的差异
- 关键字
- 数据类型
- 常量与宏
-
函数和操作符
- 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
- 数字操作函数和操作符
- 时间、日期处理函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 逻辑操作符
- 比较操作符
- 模式匹配操作符
- 聚集函数
- 窗口函数
- 类型转换函数
- JSON/JSONB函数和操作符
- 安全函数
- 条件表达式函数
- 范围函数和操作符
- 数据脱敏函数
- Roaring Bitmap函数和操作符
- UUID函数
- 文本检索函数和操作符
- HLL函数和操作符
- 返回集合的函数
- 几何函数和操作符
- 网络地址函数和操作符
- 系统信息函数
- 系统管理函数
- 备份恢复控制函数
- 数据库对象函数
- 残留文件管理函数
- 统计信息函数
- 触发器函数
- XML函数
- 调用栈记录函数
- Hudi系统函数
- 漏斗函数和留存函数
- EXTERNAL SCHEMA系统函数
- 存算分离函数
- 表达式
- 类型转换
- 全文检索
- 系统操作
- 事务管理
-
DDL语法
- DDL语法一览表
- ALTER BLOCK RULE
- ALTER DATABASE
- ALTER EXCEPT RULE
- ALTER EXTERNAL SCHEMA
- ALTER FOREIGN TABLE (GDS导入导出)
- ALTER FOREIGN TABLE (For HDFS or OBS)
- ALTER FUNCTION
- ALTER GROUP
- ALTER INDEX
- ALTER LARGE OBJECT
- ALTER MATERIALIZED VIEW
- ALTER NODE GROUP
- ALTER PUBLICATION
- ALTER REDACTION POLICY
- ALTER RESOURCE POOL
- ALTER ROLE
- ALTER SUBSCRIPTION
- ALTER ROW LEVEL SECURITY POLICY
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TEXT SEARCH CONFIGURATION
- ALTER TEXT SEARCH DICTIONARY
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER VIEW
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- CREATE BARRIER
- CREATE BLOCK RULE
- CREATE DATABASE
- CREATE EXCEPT RULE
- CREATE EXTERNAL SCHEMA
- CREATE FOREIGN TABLE (GDS导入导出)
- CREATE FOREIGN TABLE (SQL on OBS or Hadoop)
- CREATE FOREIGN TABLE (OBS导入导出)
- CREATE FUNCTION
- CREATE GROUP
- CREATE INDEX
- CREATE MATERIALIZED VIEW
- CREATE NODE GROUP
- CREATE OUTLINE
- CREATE PROCEDURE
- CREATE PUBLICATION
- CREATE REDACTION POLICY
- CREATE ROW LEVEL SECURITY POLICY
- CREATE RESOURCE POOL
- CREATE ROLE
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SUBSCRIPTION
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TEXT SEARCH CONFIGURATION
- CREATE TEXT SEARCH DICTIONARY
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE VIEW
- CURSOR
- DISCARD
- DROP BLOCK RULE
- DROP DATABASE
- DROP EXCEPT RULE
- DROP FOREIGN TABLE
- DROP FUNCTION
- DROP GROUP
- DROP INDEX
- DROP MATERIALIZED VIEW
- DROP NODE GROUP
- DROP OUTLINE
- DROP OWNED
- DROP PUBLICATION
- DROP REDACTION POLICY
- DROP ROW LEVEL SECURITY POLICY
- DROP PROCEDURE
- DROP RESOURCE POOL
- DROP ROLE
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP SUBSCRIPTION
- DROP SYNONYM
- DROP TABLE
- DROP TEXT SEARCH CONFIGURATION
- DROP TEXT SEARCH DICTIONARY
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP VIEW
- FETCH
- MOVE
- REFRESH MATERIALIZED VIEW
- REINDEX
- RENAME TABLE
- RESET
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SHOW
- TRUNCATE
- VACUUM
- DML语法
- DCL语法
- DQL语法
- TCL语法
- 历史版本
-
SQL语法参考(9.1.0.x)
-
工具指南
- 工具简介
- 工具下载
- gsql
- GDS
-
DSC
- 前言
- DSC简介
- 使用DSC
- Teradata语法迁移
-
MySQL语法迁移
- 支持的关键词和特性
- 数据类型
- 函数和表达式
-
表（可选参数、操作）
- ALGORITHM
- ALTER TABLE RENAME
- AUTO_INCREMENT
- AVG_ROW_LENGTH
- BLOCK_SIZE
- CHARSET
- CHECKSUM
- CLUSTERED KEY
- COLLATE
- COMMENT
- CONNECTION
- DEFAULT
- DELAY_KEY_WRITE
- DISTRIBUTE BY
- DIRECTORY
- ENGINE
- FOREIGN_KEY_CHECKS
- IF NOT EXISTS
- INDEX_ALL
- INSERT_METHOD
- KEY_BLOCK_SIZE
- LOCK
- MAX_ROWS
- MIN_ROWS
- PACK_KEYS
- PARTITION BY
- PASSWORD
- ROW_FORMAT
- STATS_AUTO_RECALC
- STATS_PERSISTENT
- STATS_SAMPLE_PAGES
- UNION
- WITH AS
- CHANGE修改列
- CHECK约束
- DROP删除表
- LIKE 表克隆
- MODIFY修改列
- TRUNCATE 删除表
- ROUNDROBIN表
- RENAME 重命名表名
- 设置与清除列默认值
- 字段名重命名
- 行列存压缩
- 添加与删除列
- 索引
- 注释
- 数据库
- 数据操作语句（DML）
- 事务管理和数据库管理
- SQL-Server语法迁移
- Oracle语法迁移
- Netezza语法迁移
- DSC常见问题
- 故障处理
- 术语表
- DataCheck
- DWS-Connector
- 服务端工具
- API参考
- SDK参考
- 场景代码示例
-
错误码参考
- 控制台错误码
-
错误码(8.2.0及以下版本)
- 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-04901 -- GAUSS-04999
- GAUSS-05101 -- GAUSS-05200
- GAUSS-05201 -- GAUSS-05800
- GAUSS-05801 -- GAUSS-05900
- GAUSS-05901 -- GAUSS-05999
- GAUSS-06101 -- GAUSS-06200
- GAUSS-50000 -- GAUSS-50999
- GAUSS-51000 -- GAUSS-51999
- GAUSS-52000 -- GAUSS-52999
- GAUSS-53000 -- GAUSS-53999
- OE000
- 8.2.1及以上版本
-
常见问题
- Top问题汇总
- 产品咨询
- 数据库连接
- 数据迁移
-
数据库使用
- 如何调整DWS分布列？
- 如何查看和设置DWS数据库的字符集编码格式
- 如何处理DWS建表时date类型字段自动转换为timestamp类型的问题？
- DWS是否需要定时对常用的表做VACUUM FULL和ANALYZE操作？
- 如何导出DWS某张表结构？
- DWS是否有高效的删除表数据的方法？
- 如何查看DWS外部表信息？
- 如果DWS建表时没有指定分布列，数据会怎么存储？
- 如何将DWS联结查询的null结果替换成0？
- 如何查看DWS表是行存还是列存？
- DWS列存表的常用信息查询
- DWS查询时索引失效场景解析
- 如何使用DWS自定义函数改写CRC32()函数
- DWS以pg_toast_temp*或pg_temp*开头的Schema是什么？
- DWS查询时结果不一致的常见场景和解决方法
- DWS哪些系统表不能做VACUUM FULL
- DWS语句处于idle in transaction状态常见场景
- DWS如何实现行转列及列转行？
- DWS唯一约束和唯一索引有什么区别？
- DWS函数和存储过程有什么区别？
- DWS字符截取函数substrb()、substr()及substring()的用法及差异
- 如何删除DWS重复的表数据？
- 集群管理
- 账户与权限
- 数据库性能
- 备份恢复
-
故障排除
- 数据库连接管理
- JDBC/ODBC类
-
数据导入/导出
- 使用COPY FROM导入时报错“invalid byte sequence for encoding "UTF8": 0x00”
- GDS导入/导出类问题
- 创建GDS外表失败，提示不支持ROUNDROBIN
- 通过CDM将MySQL数据导入GaussDB(DWS)时出现字段超长，数据同步失败
- 执行创建OBS外表的SQL语句时，提示Access Denied
- GDS导入失败后，磁盘占用空间增大
- GDS导入数据时，脚本执行报错：out of memory
- 使用GDS传输数据的过程中，报错：connection failure error
- 使用DataArts Studio服务创建GaussDB(DWS)外表时不支持中文，如何处理
- 数据库参数修改
- 账号/权限/密码
-
集群性能
- 锁等待检测
- 执行SQL时出现表死锁，提示LOCK_WAIT_TIMEOUT锁等待超时
- 执行SQL时报错：abort transaction due to concurrent update
- 磁盘使用率高&集群只读处理方案
- SQL执行很慢，性能低，有时长时间运行未结束
- 数据倾斜导致SQL执行慢，大表SQL执行无结果
- VACUUM FULL一张表后，表文件大小无变化
- 删除表数据后执行了VACUUM，但存储空间并没有释放
- 执行VACUUM FULL命令时报错：Lock wait timeout
- VACUUM FULL执行慢
- 表数据膨胀导致SQL查询慢，用户前台页面数据加载不出
- 集群报错内存溢出
- 带自定义函数的语句不下推
- 列存表更新失败或多次更新后出现表膨胀
- 列存表多次插入后出现表膨胀
- 往GaussDB(DWS)写数据慢，客户端数据会有积压
- 分析查询效率异常降低的问题
- 未收集统计信息导致查询性能差
- 执行计划中有NestLoop导致SQL语句执行慢
- 未分区剪枝导致SQL查询慢
- 行数估算过小，优化器选择走NestLoop导致性能下降
- 语句中存在“in 常量”导致SQL执行无结果
- 单表点查询性能差
- 动态负载管理下的CCN排队
- 数据膨胀磁盘空间不足，导致性能降低
- 列存小CU多导致的性能慢问题
- 降低I/O的处理方案
- 高CPU系统性能调优方案
- 降低内存的处理方案
- 集群异常
-
数据库使用
- 插入或更新数据时报错，提示分布键不能被更新
- VARCHAR(n)存储中文字符，提示value too long for type character varying？
- SQL语句中字段名大小写敏感问题
- 删除表时报错：cannot drop table test because other objects depend on it
- 多个表同时进行MERGE INTO UPDATE时，执行失败
- session_timeout设置导致JDBC业务报错
- DROP TABLE失败
- 使用string_agg函数查询执行结果不稳定
- 查询表大小时报错“could not open relation with OID xxx”
- DROP TABLE IF EXISTS语法误区
- 不同用户查询同表显示数据不同
- 修改索引只调用索引名提示索引不存在
- 执行CREATE SCHEMA语句时，报错SCHEMA已存在
- 删除数据库失败，提示有session正在连接
- 在Java中，读取character类型的表字段时返回类型为什么是byte？
- 执行表分区操作时，报错：start value of partition "xxx" NOT EQUAL up-boundary of last partition
- 重建索引失败
- 视图查询时执行失败
- 全局SQL查询
- 如何判断表是否执行过UPDATE或DELETE
- 执行业务报错“Can't fit xid into page”
- DWS元数据不一致-分区索引异常
- 对系统表gs_wlm_session_info执行TRUNCATE命令报错
- 分区表插入数据报错：inserted partition key does not map to any table partition
- 范围分区表添加新分区报错upper boundary of adding partition MUST overtop last existing partition
- 查询表报错：missing chunk number %d for toast value %u in pg_toast_XXXX
- 向表中插入数据报错：duplicate key value violates unique constraint "%s"
- 执行业务报错could not determine which collation to use for string hashing
- 使用GaussDB(DWS) 的ODBC驱动，SQL查询结果中字符类型的字段内容会被截断
- 执行Plan Hint的Scan方式不生效
- 数据类型转换出现报错：invalid input syntax for xxx
- 使用substring截取带中文的数据时出现乱码
- 业务报错：UNION types %s and %s cannot be matched
- 更新报错ERROR：Non-deterministic UPDATE
- 插入数据报错：null value in column '%s' violates not-null constraint
- 业务报错：unable to get a stable set of rows in the source table
- Oracle/TD/MySQL兼容模式下查询结果不一致
- 视频帮助
- 性能白皮书
- 文档下载
- 通用参考
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GAUSS-01311 -- GAUSS-01320
GAUSS-01311: "collation attribute '%s' not recognized"
SQLSTATE: 42601
错误原因：create collation语法不支持。
解决办法：create collation语法不支持。
GAUSS-01312: "parameter 'lc_collate' must be specified"
SQLSTATE: 42P17
错误原因：创建排序规则必须指定lc_collate。
解决办法：创建排序规则时指定lc_collate。
GAUSS-01313: "parameter 'lc_ctype' must be specified"
SQLSTATE: 42P17
错误原因：创建排序规则必须指定lc_ctype。
解决办法：创建排序规则时指定lc_ctype。
GAUSS-01314: "collation '%s' for encoding '%s' already exists in schema '%s'"
SQLSTATE: 42710
错误原因：某类字符集的排序规则已存在。
解决办法：对一个字符集不创建重复的排序规则。
GAUSS-01315: "collation '%s' already exists in schema '%s'"
SQLSTATE: 42710
错误原因：排序规则在模式中已存在。
解决办法：不在同一模式中创建重复的排序规则。
GAUSS-01316: "unlogged sequences are not supported"
SQLSTATE: 0A000
错误原因：不支持创建不被记录的序列。
解决办法：请勿创建unlogged类型序列。
GAUSS-01317: "GTM error, could not create sequence"
SQLSTATE: 08006
错误原因：GTM错误，无法创建序列。
解决办法：通过命令[gs_om -t status --detail]查看gtm状态，如果gtm状态异常，请先解决GTM故障问题后再次进行创建序列操作。
GAUSS-01318: "GTM error, could not alter sequence"
SQLSTATE: 08006
错误原因：GTM错误，无法修改序列。
解决办法：通过命令[gs_om -t status --detail]查看gtm状态，如果gtm状态异常，请先解决GTM故障问题后再次进行创建序列操作。
GAUSS-01319: "permission denied for sequence %s"
SQLSTATE: 42501
错误原因：没有访问序列的权限。
解决办法：请检查当前用户是否有操作该序列的权限。
GAUSS-01320: "nextval: reached maximum value of sequence '%s' (%s)"
SQLSTATE: 55000
错误原因：达到序列最大值的限制。
解决办法：内部错误，请联系技术支持工程师提供技术支持。
