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.
