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Apply (a somewhat revised version of) Greg Mullane's patch to eliminate

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heuristic determination of day vs month in date/time input.  Add the
ability to specify that input is interpreted as yy-mm-dd order (which
formerly worked, but only for yy greater than 31).  DateStyle's input
component now has the preferred spellings DMY, MDY, or YMD; the older
keywords European and US are now aliases for the first two of these.
Per recent discussions on pgsql-general.
This commit is contained in:
Tom Lane
2003-07-29 00:03:19 +00:00
parent 2baf4efe09
commit 9c2a7c2269
26 changed files with 441 additions and 350 deletions
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50
src/include/miscadmin.h
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@ -12,7 +12,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: miscadmin.h,v 1.128 2003/07/27 21:49:54 tgl Exp $
* $Id: miscadmin.h,v 1.129 2003/07/29 00:03:18 tgl Exp $
*
* NOTES
* some of the information in this file should be moved to
@ -135,35 +135,53 @@ extern char pg_pathname[];
*/
extern DLLIMPORT Oid MyDatabaseId;
/* Date/Time Configuration
/*
* Date/Time Configuration
*
* Constants to pass info from runtime environment:
* USE_POSTGRES_DATES specifies traditional postgres format for output.
* USE_ISO_DATES specifies ISO-compliant format for output.
* USE_SQL_DATES specified Oracle/Ingres-compliant format for output.
* USE_GERMAN_DATES specifies German-style dd.mm/yyyy date format.
* DateStyle defines the output formatting choice for date/time types:
* USE_POSTGRES_DATES specifies traditional Postgres format
* USE_ISO_DATES specifies ISO-compliant format
* USE_SQL_DATES specifies Oracle/Ingres-compliant format
* USE_GERMAN_DATES specifies German-style dd.mm/yyyy
*
* DateStyle specifies preference for date formatting for output.
* EuroDates if client prefers dates interpreted and written w/European conventions.
* DateOrder defines the field order to be assumed when reading an
* ambiguous date (anything not in YYYY-MM-DD format, with a four-digit
* year field first, is taken to be ambiguous):
* DATEORDER_YMD specifies field order yy-mm-dd
* DATEORDER_DMY specifies field order dd-mm-yy ("European" convention)
* DATEORDER_MDY specifies field order mm-dd-yy ("US" convention)
*
* HasCTZSet is true if user has set timezone as a numeric offset from UTC.
* If so, CTimeZone is the timezone offset in seconds (using the Unix-ish
* sign convention, ie, positive offset is west of UTC, rather than the
* SQL-ish convention that positive is east of UTC).
* In the Postgres and SQL DateStyles, DateOrder also selects output field
* order: day comes before month in DMY style, else month comes before day.
*
* The user-visible "DateStyle" run-time parameter subsumes both of these.
*/
#define MAXTZLEN 10 /* max TZ name len, not counting tr. null */
/* valid DateStyle values */
#define USE_POSTGRES_DATES 0
#define USE_ISO_DATES 1
#define USE_SQL_DATES 2
#define USE_GERMAN_DATES 3
/* valid DateOrder values */
#define DATEORDER_YMD 0
#define DATEORDER_DMY 1
#define DATEORDER_MDY 2
extern int DateStyle;
extern bool EuroDates;
extern int DateOrder;
/*
* HasCTZSet is true if user has set timezone as a numeric offset from UTC.
* If so, CTimeZone is the timezone offset in seconds (using the Unix-ish
* sign convention, ie, positive offset is west of UTC, rather than the
* SQL-ish convention that positive is east of UTC).
*/
extern bool HasCTZSet;
extern int CTimeZone;
#define MAXTZLEN 10 /* max TZ name len, not counting tr. null */
extern bool enableFsync;
extern bool allowSystemTableMods;
extern DLLIMPORT int SortMem;