Table "public.stu_active" Column | Type | Collation | Nullable | Default | Storage | Stats target | Description ---+---+---+---+---+---+---+--- id | integer | | | | plain | | status | character varying(30) | | | | extended | | name | character varying(30) | | |...
(1 row) test=# \d+ students; Table "mys.students" Column | Type | Collation | Nullable | Default | Storage | Compression | Stats target | Description ---+---+---+---+---+---+---+---+--- student_id | integer | | not null | ...
Table"tdsql_pg.t_native_range" Column|Type|Collation|Nullable|Default|Storage|Stats target|Description ---+---+---+---+---+---+---+--- f1|bigint|||plain|| f2|timestamp withouttimezone|||now()|plain|| f3|integer|||plain|| Partition key: RANGE(f2) Partitions: t_native_range_...
0. 准备CMake和LLVM编译环境依赖 升级LLVM和切换版本 在Ubuntu 16.04和18.04操作系统上,缺省的 apt 源用 apt install llvm 命令安装的版本较低。而 datasketches-postgresql 需要llvm-10的编译环境。考虑进一步升级 LLVM
View"public.pg_stat_statements"Column|Type|Collation|Nullable|Default---+---+---+---+---userid|oid|||dbid|oid|||queryid|bigint|||query|text|||calls|bigint|||total_time|double precision|||min_time|double precision|||max_time|double precision|||mean_time|double precision|||stddev_...
View"pg_catalog.pg_prepared_statements"Column|Type|Collation|Nullable|Default---+---+---+---+---name|text|||statement|text|||prepare_time|timestampwithtime zone|||parameter_types|regtype[]|||from_sql|boolean||| plan_cache_mode参数可以影响prepare语句选择生成执行计划的策略。 auto表示按照...
postgres=# \d pg_replication_originTable"pg_catalog.pg_replication_origin"Column|Type|Collation|Nullable|Default---+---+---+---+---roident|oid||notnull|roname|text|C|notnull| 对于手工创建的origin,需要调用pg_replication_origin_session_setup () API绑定会话到origin。 postgres=#selectpg_repli...
L将参数值引用为 SQL 文字。一个空值将被显示为不带引号的字符串NULL(等效于quote_nullable)。 除了以上所述的格式说明符之外,要输出一个文字形式的%字符,可以使用特殊序列%%。 下面有一些基本的格式转换的例子: SELECTformat('Hello %s','World');
Column | Type | Collation | Nullable | Default ---+---+---+---+--- logdate | date | | not null | peaktemp | integer | | | unitsales | integer | | | Partition of: measurement FOR VALUES FROM ('2016-01-01') TO ('2017-01-01') Indexes: "measurement_y2016_unitsales_idx"...
postgres=# \d pg_publicationTable"pg_catalog.pg_publication"Column|Type|Collation|Nullable|Default---+---+---+---+--- pubname | name | | not null | pubowner | oid | | not null | puballtables | boolean | | not null | pubinsert | boolean...