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6 | 6 | * |
7 | 7 | * Copyright (c) 1994, Regents of the University of California |
8 | 8 | * |
9 | | - * $Id: heapam.h,v 1.18 1997/09/12 14:29:04 momjian Exp $ |
| 9 | + * $Id: heapam.h,v 1.19 1997/09/14 03:59:44 momjian Exp $ |
10 | 10 | * |
11 | 11 | *------------------------------------------------------------------------- |
12 | 12 | */ |
@@ -93,6 +93,10 @@ typedef HeapAccessStatisticsData *HeapAccessStatistics; |
93 | 93 | *<tup> is the pointer to the heap tuple. <attnum> is the attribute |
94 | 94 | *number of the column (field) caller wants.<tupleDesc> is a |
95 | 95 | *pointer to the structure describing the row and all its fields. |
| 96 | + * |
| 97 | + *Because this macro is often called with constants, it generates |
| 98 | + *compiler warnings about 'left-hand comma expression has no effect. |
| 99 | + * |
96 | 100 | * ---------------- */ |
97 | 101 | #defineheap_getattr(tup,b,attnum,tupleDesc,isnull) \ |
98 | 102 | (AssertMacro((tup) != NULL) ? \ |
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