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Add two new format fields for use with to_char(), to_date() and

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to_timestamp():
    - ID for day-of-week
    - IDDD for day-of-year

This makes it possible to convert ISO week dates to and from text
fully represented in either week ('IYYY-IW-ID') or day-of-year
('IYYY-IDDD') format.

I have also added an 'isoyear' field for use with extract / date_part.

Brendan Jurd
This commit is contained in:
Bruce Momjian
2007-02-16 03:39:46 +00:00
parent c7b08050d9
commit 4ebb0cf9c3
12 changed files with 779 additions and 157 deletions
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3
src/interfaces/ecpg/pgtypeslib/dt.h
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@@ -1,4 +1,4 @@
/* $PostgreSQL: pgsql/src/interfaces/ecpg/pgtypeslib/dt.h,v 1.34 2006/03/11 04:38:39 momjian Exp $ */
/* $PostgreSQL: pgsql/src/interfaces/ecpg/pgtypeslib/dt.h,v 1.35 2007/02/16 03:39:45 momjian Exp $ */
#ifndef DT_H
#define DT_H
@@ -157,6 +157,7 @@ typedef double fsec_t;
#define DTK_DOY 33
#define DTK_TZ_HOUR 34
#define DTK_TZ_MINUTE 35
#define DTK_ISOYEAR 36
/*