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Add comment about possible zero value.

This commit is contained in:
Bruce Momjian 1996-10-05 20:33:45 +00:00
parent efac791640
commit 8999ce097f
1 changed files with 2 additions and 2 deletions
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4
src/include/nodes/primnodes.h
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@ -6,7 +6,7 @@
* *
* Copyright (c) 1994, Regents of the University of California * Copyright (c) 1994, Regents of the University of California
* *
* $Id: primnodes.h,v 1.1 1996/08/28 01:57:46 scrappy Exp $ * $Id: primnodes.h,v 1.2 1996/10/05 20:33:45 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -105,7 +105,7 @@ typedef struct Expr {
* Var * Var
* varno - index of this var's relation in the range table * varno - index of this var's relation in the range table
* (could be INNER or OUTER) * (could be INNER or OUTER)
* varattno - attribute number of this var * varattno - attribute number of this var, or zero for all
* vartype - pg_type tuple oid for the type of this var * vartype - pg_type tuple oid for the type of this var
* varnoold - keep varno around in case it got changed to INNER/ * varnoold - keep varno around in case it got changed to INNER/
* OUTER (see match_varid) * OUTER (see match_varid)