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-rw-r--r--mysql-test/r/select_found.result15
-rw-r--r--mysql-test/t/select_found.test10
2 files changed, 25 insertions, 0 deletions
diff --git a/mysql-test/r/select_found.result b/mysql-test/r/select_found.result
index 92758fa134b..7b38515cf70 100644
--- a/mysql-test/r/select_found.result
+++ b/mysql-test/r/select_found.result
@@ -348,3 +348,18 @@ select found_rows();
found_rows()
75
drop table t1;
+create table t1(c1 int);
+insert into t1 values(1),(2),(3),(4),(5);
+select * from t1 order by c1 limit 2,1;
+c1
+3
+select found_rows();
+found_rows()
+3
+select sql_calc_found_rows * from t1 order by c1 limit 2,1;
+c1
+3
+select found_rows();
+found_rows()
+5
+drop table t1;
diff --git a/mysql-test/t/select_found.test b/mysql-test/t/select_found.test
index 88940eaf2b8..33613697722 100644
--- a/mysql-test/t/select_found.test
+++ b/mysql-test/t/select_found.test
@@ -277,3 +277,13 @@ select sql_calc_found_rows * from t1 ignore index (i) where i = 0 order by v lim
select found_rows();
drop table t1;
+#
+# MDEV-9390 Function found_rows() gives incorrect result where the previous SELECT contains ORDER BY clause
+#
+create table t1(c1 int);
+insert into t1 values(1),(2),(3),(4),(5);
+select * from t1 order by c1 limit 2,1;
+select found_rows();
+select sql_calc_found_rows * from t1 order by c1 limit 2,1;
+select found_rows();
+drop table t1;