Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-7033

Inconsistent error codes returned on lack of access for EXPLAIN UPDATE with view

        Details

        • Type: Bug
        • Status: Open
        • Priority: Minor
        • Resolution: Unresolved
        • Affects Version/s: 10.0.14, 10.1.1
        • Fix Version/s: 10.1
        • Component/s: OTHER
        • Labels:

          Description

          CREATE DATABASE privtest_db;

CREATE TABLE privtest_db.t1 (a INT);
CREATE TABLE privtest_db.t2 (a INT);
INSERT INTO privtest_db.t2 VALUES (1), (2), (3);
CREATE VIEW privtest_db.v1 (a) AS SELECT a FROM privtest_db.t1;

GRANT ALL    ON privtest_db.t1 TO 'privtest'@'localhost';
GRANT ALL    ON privtest_db.t2 TO 'privtest'@'localhost';
GRANT SELECT ON privtest_db.v1 TO 'privtest'@'localhost';

          connect(con1,localhost,privtest,,);
USE privtest_db;

# Single-table UPDATE, multi-table DELETE, multi-table UPDATE all return
# the same ER_TABLEACCESS_DENIED_ERROR
# because there is no UPDATE/DELETE grants on v1

--error ER_TABLEACCESS_DENIED_ERROR
UPDATE v1 SET v1.a = v1.a + 1 WHERE v1.a = 2;
--error ER_TABLEACCESS_DENIED_ERROR
DELETE v1 FROM v1, t2 WHERE v1.a = t2.a;
--error ER_TABLEACCESS_DENIED_ERROR
UPDATE v1, t2 SET v1.a = v1.a + 1 WHERE v1.a = t2.a;

# But for EXPLAIN, it's different:
# Single-table UPDATE and multi-table DELETE both return ER_TABLEACCESS_DENIED_ERROR
# while the multi-table UPDATE returns ER_VIEW_NO_EXPLAIN

--error ER_TABLEACCESS_DENIED_ERROR
EXPLAIN UPDATE v1 SET v1.a = v1.a + 1 WHERE v1.a = 2;
--error ER_TABLEACCESS_DENIED_ERROR
EXPLAIN DELETE v1 FROM v1, t2 WHERE v1.a = t2.a;

--error ER_TABLEACCESS_DENIED_ERROR
EXPLAIN UPDATE v1, t2 SET v1.a = v1.a + 1 WHERE v1.a = t2.a;

            Gliffy Diagrams

              Attachments

                Issue Links

                links to

                Web Link Bug#74713 - Inconsistent error codes returned on lack of access for EXPLAIN UPDATE with view

                  Activity

                  There are no comments yet on this issue.

                    People

                    • Assignee:
                      Unassigned
                      Reporter:
                      elenst Elena Stepanova
                    • Votes:
                      0 Vote for this issue
                      Watchers:
                      2 Start watching this issue

                      Dates

                      • Created:
                        Updated: