While reading celko's SQL puzzles (second edition) i followed a reference to http://www.dbmsmag.com/9801d06.html. There is a puzzle that counts items in boxes. When i try to run the proposed solution on PG 8.1.5, PG says: ERROR: column reference "qty" is ambiguous
apparently the variable declaration used in the solution is not proper for PostgreSQL. Is there a way to solve this puzzle in PostgreSQL? /stig ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq