V_CATALOG 架构
本部分中的系统表位于 v_catalog 架构中。这些表提供数据库中的对象的相关信息（元数据）；比如表、约束、用户、投影等。
本节内容
- ACCESS_POLICY
- ALL_TABLES
- AUDIT_MANAGING_USERS_PRIVILEGES
- CA_BUNDLES
- CATALOG_SUBSCRIPTION_CHANGES
- CATALOG_SYNC_STATE
- CATALOG_TRUNCATION_STATUS
- CERTIFICATES
- CLIENT_AUTH
- CLIENT_AUTH_PARAMS
- CLUSTER_LAYOUT
- COLUMNS
- COMMENTS
- COMPLEX_TYPES
- CONSTRAINT_COLUMNS
- CRYPTOGRAPHIC_KEYS
- DATABASES
- DIRECTED_QUERIES
- DUAL
- ELASTIC_CLUSTER
- EPOCHS
- FAULT_GROUPS
- FOREIGN_KEYS
- GRANTS
- HCATALOG_COLUMNS
- HCATALOG_SCHEMATA
- HCATALOG_TABLES
- HCATALOG_TABLE_LIST
- INHERITING_OBJECTS
- INHERITED_PRIVILEGES
- KEYWORDS
- LARGE_CLUSTER_CONFIGURATION_STATUS
- LICENSE_AUDITS
- LICENSES
- LOAD_BALANCE_GROUPS
- LOG_PARAMS
- LOG_QUERIES
- LOG_TABLES
- MATERIALIZE_FLEXTABLE_COLUMNS_RESULTS
- MODELS
- NETWORK_ADDRESSES
- NODES
- NODE_SUBSCRIPTION_CHANGE_PHASES
- NODE_SUBSCRIPTIONS
- ODBC_COLUMNS
- PASSWORD_AUDITOR
- PASSWORDS
- PRIMARY_KEYS
- PROFILE_PARAMETERS
- PROFILES
- PROJECTION_CHECKPOINT_EPOCHS
- PROJECTION_COLUMNS
- PROJECTION_DELETE_CONCERNS
- PROJECTIONS
- RESOURCE_POOL_DEFAULTS
- RESOURCE_POOLS
- ROLES
- ROUTING_RULES
- SCHEMATA
- SEQUENCES
- SESSION_SUBSCRIPTIONS
- SHARDS
- STORAGE_LOCATIONS
- SUBCLUSTERS
- SUBCLUSTER_RESOURCE_POOL_OVERRIDES
- SYSTEM_COLUMNS
- SYSTEM_TABLES
- TABLE_CONSTRAINTS
- TABLES
- TEXT_INDICES
- TYPES
- USER_AUDITS
- USER_CLIENT_AUTH
- USER_CONFIGURATION_PARAMETERS
- USER_FUNCTION_PARAMETERS
- USER_FUNCTIONS
- USER_PROCEDURES
- USER_TRANSFORMS
- USERS
- VIEW_COLUMNS
- VIEW_TABLES
- VIEWS