I corecting date_trunc('quarter',...) and friends because orig version

doing '2003-07-30' -> '2003-04-01', '2003-11-30' ->'2003-07-01'

B?jthe Zolt?n

diff --git a/src/backend/utils/adt/timestamp.c b/src/backend/utils/adt/timestamp.c
index 4ee6e953240f2900c74527544252fc0d5b33c175..cef46084a1c4612b9d3f00a8e325b73cf6f1718f 100644 (file)
--- a/src/backend/utils/adt/timestamp.c
+++ b/src/backend/utils/adt/timestamp.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/utils/adt/timestamp.c,v 1.86 2003/07/17 00:55:37 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/utils/adt/timestamp.c,v 1.87 2003/07/26 15:17:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2533,7 +2533,7 @@ timestamp_trunc(PG_FUNCTION_ARGS)
                        case DTK_YEAR:
                                tm->tm_mon = 1;
                        case DTK_QUARTER:
-                               tm->tm_mon = (3 * (tm->tm_mon / 4)) + 1;
+                               tm->tm_mon = (3 * ((tm->tm_mon - 1) / 3)) + 1;
                        case DTK_MONTH:
                                tm->tm_mday = 1;
                        case DTK_DAY:
@@ -2626,7 +2626,7 @@ timestamptz_trunc(PG_FUNCTION_ARGS)
                        case DTK_YEAR:
                                tm->tm_mon = 1;
                        case DTK_QUARTER:
-                               tm->tm_mon = (3 * (tm->tm_mon / 4)) + 1;
+                               tm->tm_mon = (3 * ((tm->tm_mon - 1) / 3)) + 1;
                        case DTK_MONTH:
                                tm->tm_mday = 1;
                        case DTK_DAY:
@@ -2719,7 +2719,7 @@ interval_trunc(PG_FUNCTION_ARGS)
                                case DTK_YEAR:
                                        tm->tm_mon = 0;
                                case DTK_QUARTER:
-                                       tm->tm_mon = (3 * (tm->tm_mon / 4));
+                                       tm->tm_mon = (3 * (tm->tm_mon / 3));
                                case DTK_MONTH:
                                        tm->tm_mday = 0;
                                case DTK_DAY:
@@ -3297,7 +3297,7 @@ interval_part(PG_FUNCTION_ARGS)
                                        break;
 
                                case DTK_QUARTER:
-                                       result = (tm->tm_mon / 4) + 1;
+                                       result = (tm->tm_mon / 3) + 1;
                                        break;
 
                                case DTK_YEAR: