Why not to use information schema: select column_name, character_maximum_length from information_schema.columns where table_name ='table name'
09.09.2011, 16:53, "shuaixf" <shua...@gmail.com>: > SELECT a.attname, pg_catalog.format_type(a.atttypid, a.atttypmod) > FROM pg_catalog.pg_attribute a > WHERE a.attrelid = (SELECT pg_class.oid > FROM pg_class INNER JOIN pg_namespace > ON (pg_class.relnamespace = pg_namespace.oid > AND lower(pg_namespace.nspname) = 'public') > WHERE pg_class.relname='tablename') > AND a.attnum > 0 AND NOT a.attisdropped > ORDER BY a.attnum; > > -- > View this message in context: > http://postgresql.1045698.n5.nabble.com/how-can-I-get-the-length-of-columns-of-a-table-by-system-tables-views-tp4780987p4786248.html > Sent from the PostgreSQL - sql mailing list archive at Nabble.com. > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
