Bug#44495: Prepared Statement: CALL p(<x>) - `thd->protocol == &thd->protocol_text' failed

Merge Konstantin's patch and add a test case.

tests/mysql_client_test.c:
  Add test case for Bug#44495

1 files changed, 52 insertions, 0 deletions

diff --git a/tests/mysql_client_test.c b/tests/mysql_client_test.c
index b836293442a..c51e3984fc9 100644
--- a/tests/mysql_client_test.c
+++ b/tests/mysql_client_test.c
@@ -17940,6 +17940,57 @@ static void test_bug41078(void)
   DBUG_VOID_RETURN;
 }
 
+
+/**
+  Bug#44495: Prepared Statement:
+             CALL p(<x>) - `thd->protocol == &thd->protocol_text' failed
+*/
+
+static void test_bug44495()
+{
+  int rc;
+  MYSQL con;
+  MYSQL_STMT *stmt;
+
+  DBUG_ENTER("test_bug44495");
+  myheader("test_44495");
+
+  rc= mysql_query(mysql, "DROP PROCEDURE IF EXISTS p1");
+  myquery(rc);
+
+  rc= mysql_query(mysql, "CREATE PROCEDURE p1(IN arg VARCHAR(25))"
+                         "  BEGIN SET @stmt = CONCAT('SELECT \"', arg, '\"');"
+                         "  PREPARE ps1 FROM @stmt;"
+                         "  EXECUTE ps1;"
+                         "  DROP PREPARE ps1;"
+                         "END;");
+  myquery(rc);
+
+  DIE_UNLESS(mysql_init(&con));
+
+  DIE_UNLESS(mysql_real_connect(&con, opt_host, opt_user, opt_password,
+                                current_db, opt_port, opt_unix_socket,
+                                CLIENT_MULTI_RESULTS));
+
+  stmt= mysql_simple_prepare(&con, "CALL p1('abc')");
+  check_stmt(stmt);
+
+  rc= mysql_stmt_execute(stmt);
+  check_execute(stmt, rc);
+
+  rc= my_process_stmt_result(stmt);
+  DIE_UNLESS(rc == 1);
+
+  mysql_stmt_close(stmt);
+
+  mysql_close(&con);
+
+  rc= mysql_query(mysql, "DROP PROCEDURE p1");
+  myquery(rc);
+
+  DBUG_VOID_RETURN;
+}
+
 /*
   Read and parse arguments and MySQL options from my.cnf
 */
@@ -18255,6 +18306,7 @@ static struct my_tests_st my_tests[]= {
   { "test_bug36326", test_bug36326 },
 #endif
   { "test_bug41078", test_bug41078 },
+  { "test_bug44495", test_bug44495 },
   { 0, 0 }
 };