基于postgresql查询某个字段属于哪个表的说明

一、场景还原

前端小林问我，它从前端的返回的某些字段，想知道那个表有这个字段，它想操作这个表……

二、SQL语句

SELECT *From information_schema. COLUMNSWHERE COLUMN_NamE = 'storename';
    

SELECT c.relname AS "表名",a.attname AS "字段名",c.oidFrom pg_class c LEFT JOIN pg_attribute a ON a.attrelid = c.oidWHERE c.relname NOT LIKE 'pg_%'-- AND c.relname = 'kx_Store'AND a.attname = 'storename';
    

补充：postgresql数据库查询所有字段详细信息，包括描述

把里边的public改成相应模式名（默认为public，可不改）

table_name改成对应表名称

SELECT AA.*,BB.DESC FROM (SELECTA.ORDINAL_POSITION AS COL_NUM,A.COLUMN_NAME AS COL_NAME,A.DATA_TYPE AS COL_TYPE,A.CHARACTER_MAXIMUM_LENGTH AS COL_LEN,A.NUMERIC_PRECISION AS COL_PREC,A.DATETIME_PRECISION AS COL_TIME_PREC,A.IS_NULLABLE AS COL_NULLABLE,A.COLUMN_DEFAULT AS COL_DEFAULTFROM INFORMATION_SCHEMA.COLUMNS AWHERE A.TABLE_SCHEMA = 'public' AND A.TABLE_NAME = 'table_name' ) AS AA LEFT JOIN (SELECTOBJSUBID,DESCRIPTION AS DESCFROM PG_DESCRIPTIONWHERE OBJOID =( SELECT RELID FROM PG_stat_ALL_TABLES WHERE SCHEMANAME = 'public' AND RELNAME = 'table_name') ) AS BB ON AA.COL_NUM = BB.OBJSUBID ORDER BY AA.COL_NUM;
    

以上为个人经验，希望能给大家一个参考，也希望大家多多支持。如有错误或未考虑完全的地方，望不吝赐教。

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