I have a (stupid) question regarding using concatenation operator. I would like to get the list of tables from the database and output the select count(*) for each of them I don't want the schema name proceeding the select, how can I omit without receiving the error below.
psql eventdb001 -t -c "select schemaname||'select count (*) from '||schemaname||'.'||relname from pg_stat_user_tables where relname like 'table_%'"|more schemaselect count (*) from event001.table_1 schemaselect count (*) from event001.table_2 When I omit the schemaname from in front of the concatenation operator it gives me this error. psql database -t -c "select ||'select count (*) from '||schemaname||'.'||relname from pg_stat_user_tables where relname like 'table_%'"|more ERROR: operator does not exist: || unknown LINE 1: select ||'select count (*) from '||schemaname||'.'||relname ... ^ HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts Chris.
