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Fix BRIN minmax-multi distance for timetz type 

The distance calculation ignored the time zone, so the result of (b-a)
might have ended negative even if (b > a). Fixed by considering the time
zone difference.

Reported-by: Jaime Casanova
Discussion: https://postgr.es/m/CAJKUy5jLZFLCxyxfT%3DMfK5mtPfSzHA1rVLowR-j4RRsFVvKm7A%40mail.gmail.com
This commit is contained in:
Tomas Vondra 2021-04-04 19:21:41 +02:00
parent 2b10e0e3c2
commit 7262f2421a
1 changed files with 1 additions and 1 deletions
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2
src/backend/access/brin/brin_minmax_multi.c
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@ -2090,7 +2090,7 @@ brin_minmax_multi_distance_timetz(PG_FUNCTION_ARGS)
TimeTzADT *ta = PG_GETARG_TIMETZADT_P(0);
TimeTzADT *tb = PG_GETARG_TIMETZADT_P(1);
delta = tb->time - ta->time;
delta = (tb->time - ta->time) + (tb->zone - ta->zone) * USECS_PER_SEC;
Assert(delta >= 0);