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-rw-r--r--contrib/btree_gist/btree_time.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/contrib/btree_gist/btree_time.c b/contrib/btree_gist/btree_time.c
index fd8774a2f08..d89401c0f51 100644
--- a/contrib/btree_gist/btree_time.c
+++ b/contrib/btree_gist/btree_time.c
@@ -118,7 +118,7 @@ gbt_time_dist(const void *a, const void *b, FmgrInfo *flinfo)
i = DatumGetIntervalP(DirectFunctionCall2(time_mi_time,
TimeADTGetDatumFast(*aa),
TimeADTGetDatumFast(*bb)));
- return (float8) Abs(INTERVAL_TO_SEC(i));
+ return fabs(INTERVAL_TO_SEC(i));
}