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Fix for UNION selects with constant NULL expressions; e.g.
authorThomas G. Lockhart <lockhart@fourpalms.org>
Tue, 14 Jul 1998 03:51:42 +0000 (03:51 +0000)
committerThomas G. Lockhart <lockhart@fourpalms.org>
Tue, 14 Jul 1998 03:51:42 +0000 (03:51 +0000)
commit9fdbbdc8770c09b8bf1003d206628584889b6ec1
treef38d8e2395f0a672ca4ccea45aecf3b8894e491a
parent3733bd462724e5e79164df05fb64849820220406
Fix for UNION selects with constant NULL expressions; e.g.
 SELECT 1 UNION SELECT NULL;
src/backend/parser/parse_clause.c