ALTERDEFAULTPRIVILEGES[FOR{ROLE|USER}target_role[,...]][INSCHEMAschema_name[,...]]abbreviated_grant_or_revoke where abbreviated_grant_or_revoke is oneof:GRANT{{SELECT|INSERT|UPDATE|DELETE|TRUNCATE|REFERENCES|TR
该字段包含以下元数据信息: Debezium versionConnector type and nameDatabase and table that contains the new rowStringified JSON array of additional offset information. The first value is always the last committed LSN, the second value is always the current LSN. Either value may be nullSchema ...
(select gds.gdgid,array_to_string(array_agg(gd1.name order by gds.code),',') jyfa from GDSALESCHEMEDTL gds left join GDSALESCHEME gd1 on gds.code = gd1.code and gd1.orggid= 1000001 where gd1.code <> '9901' group by gds.gdgid ) gds on g.gid = gds.gdgid where 1 = 1...
ltree <@ ltree boolean is left argument a descendant of right (or equal)? 2. PostgreSQL中的规则表达式匹配代替函数regexp_replace regexp_replace( string , '\.[\d]+$'::text , '') 截断末尾的 '.数字', 取上一路径 3. PostgreSQL中用于查询字符出现位置的函数strpos strpos(tmp.path, '.')...
简介:日常中我们进行安装PostgreSQL后都需要对其进行配置基础配置,以便其能有效发挥出服务器的性能,下面是我进行整理后的postgresql.conf配置文件的相关注释,方便大家对于各个属性进行熟悉。 PostgreSQL集群篇——postgresql.conf配置文件解析 正文 日常中我们进行安装PostgreSQL后都需要对其进行配置基础配置,以便其能有效发挥出...
PostgreSQL offers your users a range of indexing techniques, including B+ tree index, Generalized Inverted Index, and Generalized Search Tree, in addition to full-text searching for string searches and strings of vector operations. Flexibility PostgreSQL is compatible with an array of the foremost ...
postgresql_lock,postgresql_stat,postgresql_index,postgresql_size,postgresql_statio这些指标需要开启配置文件中的 relations 字段。 [[inputs.postgresql]] ## Server address # URI format # postgres://[datakit[:PASSWORD]]@localhost[/dbname]?sslmode=[disable|verify-ca|verify-full] # or simple string # ...
}'::text[])) -> Bitmap Index Scan on index_messages_on_topic_key_string (cost=0.00..4.57 rows=1 width=0) (actual time=0.007..0.007 rows=7 loops=1) Index Cond: ((jsonb_extract_path_text(context, VARIADIC '{topic}'::text[]) ~>=~ '?'::text) AND (jsonb_extract_path_text(...
http://www.postgres.cn/docs/13/index.html 共享存储# 共享存储是所用的存储空间相同,但实例运行放在不同的节点上。 当在正常工作状态,主节点在计算机上启动,但是计算机里文件系统是接在SAN存储上,SAN存储同时也可以连接到备用节点,正常情况下主节点对共享存储进行读写,对外提供业务和服务。
_option_index", ERRCODE_FDW_INVALID_OPTION_INDEX }, { "fdw_invalid_option_name", ERRCODE_FDW_INVALID_OPTION_NAME }, { "fdw_invalid_string_length_or_buffer_length", ERRCODE_FDW_INVALID_STRING_LENGTH_OR_BUFFER_LENGTH }, { "fdw_invalid_string_format", ERRCODE_FDW_INVALID_STRING_FORMAT },...