to_char(): have format 'OF' only show the leading negative sign

Previously both hours and minutes displayed as negative.

Report by David Pozsar

diff --git a/src/backend/utils/adt/formatting.c b/src/backend/utils/adt/formatting.c
index 40a353f5134cb7766ed567ef9b975bb530b1f6fe..576db95c1bed53508d274718c0650e353376735c 100644 (file)
--- a/src/backend/utils/adt/formatting.c
+++ b/src/backend/utils/adt/formatting.c
@@ -2507,7 +2507,7 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
                s += strlen(s);
                if (tm->tm_gmtoff % SECS_PER_HOUR != 0)
                {
-                   sprintf(s, ":%02ld", (tm->tm_gmtoff % SECS_PER_HOUR) / SECS_PER_MINUTE);
+                   sprintf(s, ":%02ld", abs(tm->tm_gmtoff % SECS_PER_HOUR) / SECS_PER_MINUTE);
                    s += strlen(s);
                }
                break;