sri harsha <sriharsha9992(at)gmail(dot)com> writes:
> Assume the following query ,
> (SELECT a * 1 , b FROM TABLE_1) UNION ALL (SELECT a *1 , b FROM TABLE_2);
> In this query , attribute number of the VARs are 141 and 2 respectively !!
I doubt it.
Maybe you're looking at something that's not a Var, possibly an OpExpr,
but assuming it's a Var? The fact that 141 is the pg_proc OID of int4mul
lends considerable weight to this suspicion ...
regards, tom lane