commit 29d8501bb0e1b727abc81e862185770fd8e3a6c9
Author: Ashutosh Bapat <ashutosh.bapat@enterprisedb.com>
Date:   Fri Mar 31 18:02:25 2023 +0530

    fixup! Add infinite interval values

diff --git a/src/backend/utils/adt/timestamp.c b/src/backend/utils/adt/timestamp.c
index c006e27dc0..cd05c61de3 100644
--- a/src/backend/utils/adt/timestamp.c
+++ b/src/backend/utils/adt/timestamp.c
@@ -3566,6 +3566,7 @@ interval_mul(PG_FUNCTION_ARGS)
 	int32		orig_month = span->month,
 				orig_day = span->day;
 	Interval   *result;
+	int			is_factor_inf = isinf(factor);
 
 	result = (Interval *) palloc(sizeof(Interval));
 
@@ -3580,12 +3581,35 @@ interval_mul(PG_FUNCTION_ARGS)
 	 */
 	if (INTERVAL_NOT_FINITE(span))
 	{
-		if (factor < 0.0)
+		if (factor == 0.0)
+			ereport(ERROR,
+					(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
+					 errmsg("interval out of range")));
+		else if (factor < 0.0)
 			interval_um_internal(span, result);
 		else
 			memcpy(result, span, sizeof(Interval));
 		PG_RETURN_INTERVAL_P(result);
 	}
+	else if (is_factor_inf)
+	{
+		Interval	zero;
+		int			result_is_inf;
+
+		memset(&zero, 0, sizeof(zero));
+		result_is_inf = interval_cmp_internal(span, &zero) * is_factor_inf;
+
+		if (result_is_inf == 0)
+			ereport(ERROR,
+					(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
+					 errmsg("interval out of range")));
+		else if (result_is_inf < 0)
+			INTERVAL_NOBEGIN(result);
+		else
+			INTERVAL_NOEND(result);
+
+		PG_RETURN_INTERVAL_P(result);
+	}
 
 	result_double = span->month * factor;
 	if (isnan(result_double) ||