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Thomas Nielsen closed DERBY-3066. --------------------------------- Resolution: Duplicate Duplicate of DERBY-84 > WHERE clause not accepted on derived expression columns > ------------------------------------------------------- > > Key: DERBY-3066 > URL: https://issues.apache.org/jira/browse/DERBY-3066 > Project: Derby > Issue Type: Improvement > Components: SQL > Reporter: Thomas Nielsen > Priority: Minor > > A very simple query involving an expression column with a derived name in the > WHERE clause fails: > ij> select a+b as s from t where s > 2; > ERROR 42X04: Column 'S' is either not in any table in the FROM list or > appears within a join specification and is outside the scope of the join > specification or appears in a HAVING clause and is not in the GROUP BY list. > If this is a CREATE or ALTER TABLE statement then 'S' is not a column in the > target table. > Noticed this while working on DERBY-2998, and AFAIK this is a valid query and > a limitation in derby. > There is a workaround for this using a nested select (output from a test > table): > ij> select * from (select a+b as s from t) as t(s) where s > 2; > S > ----------- > 10 > 10 > 10 > 3 rows selected -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.