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Document range restriction on bit values used in INTERVAL typmod.
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* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: datetime.h,v 1.22 2001/09/28 08:09:14 thomas Exp $
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* $Id: datetime.h,v 1.23 2001/10/23 20:17:27 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -78,8 +78,13 @@
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/*
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* Fields for time decoding.
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*
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* Can't have more of these than there are bits in an unsigned int
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* since these are turned into bit masks during parsing and decoding.
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* since these are turned into bit masks during parsing and decoding.
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*
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* Furthermore, the values for YEAR, MONTH, DAY, HOUR, MINUTE, SECOND
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* must be in the range 0..14 so that the associated bitmasks can fit
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* into the left half of an INTERVAL's typmod value.
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*/
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#define RESERV 0
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