pg_size_pretty(pg_total_relation_size(relid) - pg_relation_size(relid)) as "External Size" FROM pg_catalog.pg_statio_user_tables ORDER BY pg_total_relation_size(relid) DESC; schemaname | Table | table_Size | External Size ---+---+---+--- mhrordhu_dhu | ror_bulk_sign_data_aud...
postgres=# \df List of functionsSchema | Name | Result data type | Argument data types | Type---+---+---+---
#foriin${instance_list} #do# $PGHOME/bin/psql -h ${i} #Clear up temp table t_postgres_table_size_temp ${exe_mysql}--show-warnings -v -v -v -e"truncate t_postgres_table_size_temp;"#Query all postgres instances postgres_instance=`${exe_mysql} -Nse"select concat(instance_hostname...
数据库集群的逻辑结构 PostgreSQL天然集群,多个集群可以组成集簇,有点类似军队的连、团、旅这样的组织规则。对于我们日常学习使用的单节点则是单个集簇单个集群,自己就是集群。 PostgreSQL如何管理这种集群规则?答案是通过一个无符号4个字节的标识进行管理,一个对象就是集群里的一个数据库。 1.2 数据库对象和对象符号...
DatasetListResponse DatasetLocation DatasetReference DatasetResource DatasetResource.Definition DatasetResource.DefinitionStages DatasetResource.DefinitionStages.Blank DatasetResource.DefinitionStages.WithCreate DatasetResource.DefinitionStages.WithIfMatch DatasetResource.DefinitionStages.WithParentResource DatasetResource.Defini...
In this post, I am sharing a script to find a list of Temp tables with their size and user information in PostgreSQL. We all aware of the temp tables and many times developers are creating temp table for their ad-hoc testing purpose. But unfortunately sometimes, they fo...
relname = table_name order by idx_scan asc, idx_tup_read asc, idx_tup_fetch asc;查看schema下索引扫描总比例: select round(sum(idx_scan)/(sum(idx_scan) + sum(seq_scan)),4) as index_scan_ratio from pg_stat_all_tables where schemaname='GPO';查看schema下表索引扫描比例: ...
Size Integer 文件大小(K)示例值:3654991 Strategy Integer 策略(0-实例备份;1-多库备份)示例值:1 Way Integer 类型(0-定时)示例值:1 Type Integer 备份方式(1-完整)示例值:1 Status Integer 状态(1-创建中;2-成功;3-失败)示例值:2 DbList Array of String DB列表示例值:[ "db2" ] InternalAddr String...
與rebalance_table_shards相同的自變數:relation、threshold、max_shard_moves、excluded_shard_list和drain_only。 如需自變數的意義,請參閱該函式的檔。 傳回值 包含這些資料列的 Tuple: table_name:其分區會移動的數據表 shardid:有問題的分區 shard_size:以位元組為單位的大小 ...
hash_estimate_size(max_table_size*2,sizeof(PREDICATELOCK)) size+size / 10 PredXactListDataSize+((MaxBackends + max_prepared_xacts)*10)*PredXactListElementDataSize hash_estimate_size((MaxBackends + max_prepared_xacts)*10,sizeof(SERIALIZABLEXID)) ...