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Per a brief conversation with Tom, I've created a patch for adding

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support for 'week' within the date_trunc function.

Within the patch I added a couple of test cases and associated target
output, and changed the documentation to add 'week' appropriately.

Robert Creager
This commit is contained in:
Bruce Momjian
2004-03-05 02:41:14 +00:00
parent 44611f6e6d
commit 1973971821
6 changed files with 35 additions and 4 deletions
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16
src/backend/utils/adt/timestamp.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.99 2004/02/14 20:16:17 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.100 2004/03/05 02:41:14 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -2564,6 +2564,13 @@ timestamp_trunc(PG_FUNCTION_ARGS)
switch (val)
{
case DTK_WEEK:
isoweek2date( date2isoweek( tm->tm_year, tm->tm_mon, tm->tm_mday ), &(tm->tm_year), &(tm->tm_mon), &(tm->tm_mday) );
tm->tm_hour = 0;
tm->tm_min = 0;
tm->tm_sec = 0;
fsec = 0;
break;
case DTK_MILLENNIUM:
tm->tm_year = (tm->tm_year / 1000) * 1000;
case DTK_CENTURY:
@ -2672,6 +2679,13 @@ timestamptz_trunc(PG_FUNCTION_ARGS)
switch (val)
{
case DTK_WEEK:
isoweek2date( date2isoweek( tm->tm_year, tm->tm_mon, tm->tm_mday ), &(tm->tm_year), &(tm->tm_mon), &(tm->tm_mday) );
tm->tm_hour = 0;
tm->tm_min = 0;
tm->tm_sec = 0;
fsec = 0;
break;
case DTK_MILLENNIUM:
tm->tm_year = (tm->tm_year / 1000) * 1000;
case DTK_CENTURY: