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Document range restriction on bit values used in INTERVAL typmod.

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This commit is contained in:
Tom Lane 2001-10-23 20:17:27 +00:00
parent d0667af926
commit 2628d9b3a4
1 changed files with 7 additions and 2 deletions
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9
src/include/utils/datetime.h
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@ -9,7 +9,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: datetime.h,v 1.22 2001/09/28 08:09:14 thomas Exp $
* $Id: datetime.h,v 1.23 2001/10/23 20:17:27 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -78,8 +78,13 @@
/*
* Fields for time decoding.
*
* Can't have more of these than there are bits in an unsigned int
* since these are turned into bit masks during parsing and decoding.
* since these are turned into bit masks during parsing and decoding.
*
* Furthermore, the values for YEAR, MONTH, DAY, HOUR, MINUTE, SECOND
* must be in the range 0..14 so that the associated bitmasks can fit
* into the left half of an INTERVAL's typmod value.
*/
#define RESERV 0