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Fix imprecision from interval rounding of multiplication/division.

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Bruce, Michael Glaesemann
This commit is contained in:
Bruce Momjian
2006-09-05 01:13:40 +00:00
parent 548e2c0a01
commit 786c3c0355
2 changed files with 40 additions and 26 deletions
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11
src/include/utils/timestamp.h
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@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/timestamp.h,v 1.62 2006/07/13 16:49:20 momjian Exp $
* $PostgreSQL: pgsql/src/include/utils/timestamp.h,v 1.63 2006/09/05 01:13:40 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -161,11 +161,14 @@ typedef int32 fsec_t;
typedef double fsec_t;
/* round off to MAX_TIMESTAMP_PRECISION decimal places */
/* note: this is also used for rounding off intervals */
#endif
/*
* Round off to MAX_TIMESTAMP_PRECISION decimal places.
* Note: this is also used for rounding off intervals.
*/
#define TS_PREC_INV 1000000.0
#define TSROUND(j) (rint(((double) (j)) * TS_PREC_INV) / TS_PREC_INV)
#endif
#define TIMESTAMP_MASK(b) (1 << (b))
#define INTERVAL_MASK(b) (1 << (b))