Fix overflow for INTERVAL 'x ms' where x is more than a couple million,

and integer datetimes are in use.  Per bug report from Hubert Depesz
Lubaczewski.

Alex Hunsaker

diff --git a/src/backend/utils/adt/datetime.c b/src/backend/utils/adt/datetime.c
index cf30b765947cd3b07c247e18c4c9153ab26f53a1..c4446dedf850ab996284dc8b428da4ad216d4ae3 100644 (file)
--- a/src/backend/utils/adt/datetime.c
+++ b/src/backend/utils/adt/datetime.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.174.2.6 2009/05/01 19:29:20 tgl Exp $
+ *       $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.174.2.7 2009/08/18 21:23:35 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2825,6 +2825,9 @@ DecodeInterval(char **field, int *ftype, int nf, int *dtype, struct pg_tm * tm,
                                                break;
 
                                        case DTK_MILLISEC:
+                                               /* avoid overflowing the fsec field */
+                                               tm->tm_sec += val / 1000;
+                                               val -= (val / 1000) * 1000;
 #ifdef HAVE_INT64_TIMESTAMP
                                                *fsec += (val + fval) * 1000;
 #else