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

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

Alex Hunsaker
This commit is contained in:
Tom Lane 2009-08-18 21:23:42 +00:00
parent 83108d1551
commit ed398d1957
1 changed files with 4 additions and 1 deletions
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5
src/backend/utils/adt/datetime.c
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@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.160.2.9 2009/05/01 19:29:27 tgl Exp $ * $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.160.2.10 2009/08/18 21:23:42 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -3135,6 +3135,9 @@ DecodeInterval(char **field, int *ftype, int nf, int *dtype, struct pg_tm * tm,
break; break;
case DTK_MILLISEC: case DTK_MILLISEC:
/* avoid overflowing the fsec field */
tm->tm_sec += val / 1000;
val -= (val / 1000) * 1000;
#ifdef HAVE_INT64_TIMESTAMP #ifdef HAVE_INT64_TIMESTAMP
*fsec += (val + fval) * 1000; *fsec += (val + fval) * 1000;
#else #else