1. 2008-03-22 Re: [PERFORM] Having MANY MANY empty columns in datab pgsql-per sathiya psql 2. 2008-03-22 Re: [PERFORM] Having MANY MANY empty columns in datab pgsql-per Craig Ringer 3. 2008-03-22 [PERFORM] Having MANY MANY empty columns in database pgsql-per sathiya psql