From 3ea8f3062aceaaafbc93e3063060d42a5fedf54b Mon Sep 17 00:00:00 2001
From: Monty <monty@mariadb.org>
Date: Tue, 6 Jun 2023 16:50:57 +0300
Subject: [PATCH] Added compare cost for DS-MRR (multi-range-read with disk
 sweep)

---
 sql/multi_range_read.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sql/multi_range_read.cc b/sql/multi_range_read.cc
index 3bc4f8328b1..a7e14811888 100644
--- a/sql/multi_range_read.cc
+++ b/sql/multi_range_read.cc
@@ -2080,6 +2080,8 @@ bool DsMrr_impl::get_disk_sweep_mrr_cost(uint keynr, ha_rows rows, uint flags,
  
   /* Total cost of all index accesses */
   cost->index_cost= primary_file->ha_keyread_and_copy_time(keynr, 1, rows, 0);
+  cost->comp_cost= rows2double(rows) * primary_file->WHERE_COST;
+  cost->setup_cost= primary_file->MULTI_RANGE_READ_SETUP_COST;
   return FALSE;
 }