TABLE_STORAGE_STATS表各列字段含义如下: TABLE_SCHEMA:表所在 schema 名字 TABLE_NAME:表名 TABLE_ID:表 ID PEER_COUNT:副本个数 REGION_COUNT:表所在的 Region 个数 EMPTY_REGION_COUNT:没有该表数据的 Region 个数 TABLE_SIZE:数据量大小,单位 MiB ...
这也是Snowflake/Hive等系统采用的方案,把metadata,statstics组织在一个单独的,高可用的,具备事务能力的存储系统中,作为底层数据视图的"source of truth",并利用其ACID的能力提供对底层存储的事务支持,包括并发控制、多版本管理等。这样data lake就成了一个dummy的存储系统而已,策略完全在第三方组件里。这是一个很不...
Set Table Storage PropertiesSets the properties. Get Table Storage PropertiesGets the properties. Preflight Table RequestQueries the cross-origin resource sharing (CORS) rules for Table Storage, prior to sending the actual request. Get Table Storage StatsRetrieves statistics related to replication for ...
按查询次数排名前 10 的所用表。 query ADXTableUsageStatistics //| parse _ResourceId with * "providers/microsoft.kusto/clusters/" cluster_name // Uncomment to get the cluster name from the ResourceId string //| where cluster_name == '<Your cluster name filter>' //| where DatabaseName =...
SELECT s.name AS statistics_name ,c.name AS column_name ,sc.stats_column_id FROM sys.stats AS s INNER JOIN sys.stats_columns AS sc ON s.object_id = sc.object_id AND s.stats_id = sc.stats_id INNER JOIN sys.columns AS c ON sc.object_id = c.object_id AND c.column_id = sc...
Table Service Stats の取得操作では、Azure Table Storage のレプリケーションに関連する統計が取得されます。 ストレージ アカウントに対して読み取りアクセス geo 冗長レプリケーションが有効になっている場合は、セカンダリ ロケーション エンドポイントでのみ使用でき
[ WITH ( {storage_parameter = value} [, ... ] ) ] [ USING INDEX TABLESPACE tablespace_name ] 参数说明 UNLOGGED 如果指定此关键字,则创建的表为非日志表。在非日志表中写入的数据不会被写入到预写日志中,这样就会比普通表快很多。但是非日志表在冲突、执行操作系统重启、数据库重启、主备切换、切...
The information_schema_stats_expiry system variable defines the period of time before cached table statistics expire. The default is 86400 seconds (24 hours). If there are no cached statistics or statistics have expired, statistics are retrieved from storage engines when querying table statistics ...
public TableServiceGeoReplication getGeoReplication() Get the geoReplication property: Geo-Replication information for the Secondary Storage Service. Returns: the geoReplication value.toXml public XmlWriter toXml(XmlWriter xmlWriter) Parameters: xmlWriter Throws: XMLStreamException to...
oceanbase.DBA_TAB_STATS_HISTORY oceanbase.DBA_SCHEDULER_JOBS oceanbase.DBA_IND_STATISTICS oceanbase.DBA_TAB_MODIFICATIONS oceanbase.DBA_SQL_PLAN_BASELINES oceanbase.DBA_SQL_MANAGEMENT_CONFIG information_schema.QUERY_RESPONSE_TIME oceanbase.CDB_OB_LS oceanbase.DBA_OB_LS oceanbase.CDB_OB_TABLE_LOCATIONS oc...