MDEV-34902: debian-start erroneously reports issues

Due to table names not being escaped properly.

Also the CHECK TABLES on all tables was excessive. This
was original there for MyISAM only tables that required
repair. Aria and InnoDB will auto-recover.

Rather than script, take the input via the shell and
attempt to push that back into SQL keeping all the
quoting correclty, just use a stored procedure that
is temporarly created.

Author: grooverdan

debian/additions/debian-start.inc.sh

@@ -30,15 +30,31 @@ function check_for_crashed_tables() {
   #
   # Note that inside single quotes must be quoted with '\'' (to be outside of single quotes).
   set +e
-  # The $MARIADB is intentionally used to expand into a command and arguments
-  # shellcheck disable=SC2086
-  echo '
-    SELECT CONCAT("select count(*) into @discard from '\''", TABLE_SCHEMA, "'\''.'\''", TABLE_NAME, "'\''")
-    FROM information_schema.TABLES WHERE TABLE_SCHEMA<>"INFORMATION_SCHEMA" AND TABLE_SCHEMA<>"PERFORMANCE_SCHEMA"
-    AND (ENGINE="MyISAM" OR ENGINE="Aria")
-    ' | \
-    LC_ALL=C $MARIADB --skip-column-names --batch | \
-    xargs --no-run-if-empty -i $MARIADB --skip-column-names --silent --batch --force -e "{}" &> "${tempfile}"
+  "$MARIADB" --skip-column-names --silent --batch --force -e '
+  DELIMITER //
+ CREATE OR REPLACE PROCEDURE mysql.check_myisam()
+BEGIN
+DECLARE done INT DEFAULT FALSE;
+DECLARE db TYPE OF information_schema.TABLES.TABLE_SCHEMA;
+DECLARE tbl TYPE OF information_schema.TABLES.TABLE_NAME;
+DECLARE cur CURSOR FOR SELECT TABLE_SCHEMA,TABLE_NAME FROM information_schema.TABLES WHERE ENGINE="MyISAM";
+DECLARE CONTINUE HANDLER FOR NOT FOUND SET done=TRUE;
+  OPEN cur;
+  read_loop: LOOP
+    FETCH cur INTO db, tbl;
+    IF done THEN
+      LEAVE read_loop;
+    END IF;
+    EXECUTE IMMEDIATE CONCAT("CHECK TABLE `", db, "`.`", REPLACE(tbl, "`", "``"), "` FAST");
+  END LOOP;
+  CLOSE cur;
+END;
+//
+DELIMITER ;
+CALL mysql.check_myisam;
+DROP PROCEDURE mysql.check_myisam;
+    ' \
+    &> "${tempfile}"
   set -e
 
   if [ -s "$tempfile" ]