while listing data types i have noticed that some types have underscore prefix but i don't know why is that. so im asking if somene can tell me. These are type examples:
_char _float4 _int2 _oid _regtype _text _varchar select distinct typname from ( SELECT attname AS name, attnum , typname, atttypmod - 4 as length, attnotnull AS notnull, atthasdef AS def, c.oid AS tbloid, d.adsrc AS defval, ds.description, attndims AS dimnum, attstattarget, attislocal, attinhcount FROM pg_attribute a INNER JOIN pg_class c ON a.attrelid = c.oid INNER JOIN pg_type t ON a.atttypid = t.oid LEFT OUTER JOIN pg_attrdef d ON d.adrelid = c.oid AND d.adnum = a.attnum LEFT OUTER JOIN pg_description ds ON ds.objoid = c.oid AND ds.objsubid = a.attnum INNER JOIN pg_namespace n ON t.typnamespace = n.oid WHERE attnum > 0 AND attisdropped <> 't' ORDER BY a.attnum ) as foo -- --------------------------------------- Viktor Bojović --------------------------------------- Wherever I go, Murphy goes with me
