Marc G. Fournier a7cfd65532 Fixes: ... Select queries with an isnull or notnull clause, like "select * where somefield isnull", crash the backend if the table has at least one index. If the indices are deleted the queries work again. Also the explain command fail in the same way. The is caused by a bug in subroutine of the optimizer which doesn't check null values in the clauses. Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>		1996-07-19 07:14:14 +00:00
src	Fixes:	1996-07-19 07:14:14 +00:00