profile-patch-for-patched.txt

diff --git a/src/backend/nodes/bitmapset.c b/src/backend/nodes/bitmapset.c
index 9cda3b1cc1..95180e6bca 100644
--- a/src/backend/nodes/bitmapset.c
+++ b/src/backend/nodes/bitmapset.c
@@ -90,6 +90,16 @@ bms_copy(const Bitmapset *a)
 	return result;
 }
 
+static long long total = 0;
+static long long loops = 0;
+
+void
+print_profile(void)
+{
+	elog(LOG, "[bms_equal] Total %lld calls, %lld loops executed",
+		 total, loops);
+}
+
 /*
  * bms_equal - are two bitmapsets equal? or both NULL?
  */
@@ -98,6 +108,20 @@ bms_equal(const Bitmapset *a, const Bitmapset *b)
 {
 	int			i;
 
+	total++;
+	if (total % 100000 == 0)
+	{
+		/*
+		 * Print what we are comparing. We prevent too many logs by logging
+		 * only when total % 100000 == 0.
+		 */
+		char   *a_str = nodeToString(a);
+		char   *b_str = nodeToString(b);
+		elog(LOG, "[bms_equal] Comparing %s and %s", a_str, b_str);
+		pfree(a_str);
+		pfree(b_str);
+	}
+
 	/* Handle cases where either input is NULL */
 	if (a == NULL)
 	{
@@ -112,6 +136,8 @@ bms_equal(const Bitmapset *a, const Bitmapset *b)
 	if (a->nwords != b->nwords)
 		return false;
 
+	loops++;
+
 	/* check each word matches */
 	i = 0;
 	do
diff --git a/src/backend/optimizer/plan/planner.c b/src/backend/optimizer/plan/planner.c
index 1e4dd27dba..d0c90ef0cf 100644
--- a/src/backend/optimizer/plan/planner.c
+++ b/src/backend/optimizer/plan/planner.c
@@ -279,6 +279,7 @@ planner(Query *parse, const char *query_string, int cursorOptions,
 		result = (*planner_hook) (parse, query_string, cursorOptions, boundParams);
 	else
 		result = standard_planner(parse, query_string, cursorOptions, boundParams);
+	print_profile();
 	return result;
 }
 
diff --git a/src/include/nodes/bitmapset.h b/src/include/nodes/bitmapset.h
index 14de6a9ff1..a28b3a77b0 100644
--- a/src/include/nodes/bitmapset.h
+++ b/src/include/nodes/bitmapset.h
@@ -79,6 +79,7 @@ typedef enum
  */
 
 extern Bitmapset *bms_copy(const Bitmapset *a);
+extern void print_profile(void);
 extern bool bms_equal(const Bitmapset *a, const Bitmapset *b);
 extern int	bms_compare(const Bitmapset *a, const Bitmapset *b);
 extern Bitmapset *bms_make_singleton(int x);