PostgreSQL view table structure and field annotations

PostgreSQL view table structure and field annotations

One: View table structure (field) information:
Select table_name,column_name,data_type,character_maximum_length from information.columns where table_schema=‘dd‘ and table_name=‘department‘;
Two: View field comment Information:
Select a.attnum,(select description from pg_catalog.pg_description where objoid=a.attrelid and objsubid=a.attnum) as descript ,a.attname,pg_catalog.format_type(a.atttypid,a.atttypmod) as data_type from pg_catalog.pg_attribute a where 1=1 and a.attrelid=(select oid from pg_class where relname=‘department‘ ) and a.attnum>0 and not a.attisdropped order by a.attnum;

• Note: Where DD is the schema name, Department is the table name *

PostgreSQL view table structure and field annotations