PGSql查看表结构以及注释信息
创建视图
CREATE OR REPLACE VIEW dbo.v_sys_tableinfo
AS SELECT pc.relname AS tablename,
pa.attname AS columnname,
pt.typname AS columntype,
CASE
WHEN pa.attlen > 0 THEN pa.attlen::integer
ELSE pa.atttypmod - 4
END AS columnlength,
pa.attnotnull AS isnullable,
CASE
WHEN (( SELECT count(*) AS count
FROM pg_constraint
WHERE pg_constraint.conrelid = pa.attrelid AND pg_constraint.conkey[1] = pa.attnum AND pg_constraint.contype = 'p'::"char")) > 0 THEN true
ELSE false
END AS isprimary,
pd.description AS columndescription
FROM pg_class pc,
pg_attribute pa,
pg_type pt,
pg_description pd
WHERE pc.oid = pa.attrelid AND pt.oid = pa.atttypid AND pd.objoid = pa.attrelid AND pd.objsubid = pa.attnum;
执行效果
select * from dbo.v_sys_tableinfo
