From 0e06a4c701f2bdbefe8ffa8386b004de6d0b8fdd Mon Sep 17 00:00:00 2001
From: Diego Fronza <diego.fronza@percona.com>
Date: Thu, 14 Oct 2021 10:24:41 -0300
Subject: [PATCH] PG-260: Fix display of queries in pg_stat_monitor view.

Don't display queries in PARSE or PLAN state, to keep it consistent
with previous behavior, this avoids showing intermediate scripts like
part of a procedure, such as:
$1
$1 := $3
---
 pg_stat_monitor.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pg_stat_monitor.c b/pg_stat_monitor.c
index ee63ba7..2f51c08 100644
--- a/pg_stat_monitor.c
+++ b/pg_stat_monitor.c
@@ -1712,6 +1712,11 @@ pg_stat_monitor_internal(FunctionCallInfo fcinfo,
 			if (tmp.state == PGSS_FINISHED)
 				continue;
 		}
+
+		/* Skip queries such as, $1, $2 := $3, etc. */
+		if (tmp.state == PGSS_PARSE || tmp.state == PGSS_PLAN)
+			continue;
+
 		if (tmp.info.parentid != UINT64CONST(0))
 		{
 			int len = 0;