Add StaticAssert to check the size of LONG_MIN, LONG_MAX and Datum.

Author: zhangyue-hashdata

Diff for: src/backend/executor/nodeHashjoin.c

@@ -2457,9 +2457,13 @@ CreateAttrFilter(PlanState *target, AttrNumber lattno, AttrNumber rattno,
 
 	attr_filter->lattno = lattno;
 	attr_filter->rattno = rattno;
-	attr_filter->blm_filter     = bloom_create_aggresive(plan_rows, work_mem, random());
-	attr_filter->min    = LLONG_MAX;
-	attr_filter->max    = LLONG_MIN;
+
+	attr_filter->blm_filter = bloom_create_aggresive(plan_rows, work_mem, random());
+
+	StaticAssertDecl(sizeof(LONG_MAX) == sizeof(Datum), "sizeof(LONG_MAX) should be equal to sizeof(Datum)");
+	StaticAssertDecl(sizeof(LONG_MIN) == sizeof(Datum), "sizeof(LONG_MIN) should be equal to sizeof(Datum)");
+	attr_filter->min = LONG_MAX;
+	attr_filter->max = LONG_MIN;
 
 	return attr_filter;
 }