Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.6.12, 10.5.22, 10.6.15, 10.4(EOL), 10.5(EOL), 10.6, 10.9(EOL), 10.10(EOL), 10.11, 11.0(EOL), 12.2
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10.6.12-MariaDB-0ubuntu0.22.04.1 Ubuntu 22.04
and
Ubuntu 19.10 / MariaDB-1:10.4.14
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Can result in hang or crash
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An unresolvable outer reference can cause a server to crash.
Description
CREATE OR REPLACE TEMPORARY TABLE a ( |
ID INT |
);
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|
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CREATE OR REPLACE TEMPORARY TABLE b ( |
ID INT |
);
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|
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CREATE OR REPLACE TEMPORARY TABLE c ( |
ID INT |
);
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|
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CREATE OR REPLACE TEMPORARY TABLE d ( |
ID INT |
);
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|
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-- Query A
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SELECT 'A' |
UNION
|
SELECT 'B' |
UNION
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SELECT DISTINCT 1 |
FROM a |
INNER JOIN b |
on a.ID = b.ID AND EXISTS (SELECT * FROM d WHERE b.ID = c.ID ) |
INNER JOIN c |
on b.ID = c.ID; |
|
|
-- Query B
|
SELECT DISTINCT 1 |
FROM a |
INNER JOIN b |
on a.ID = b.ID AND EXISTS (SELECT * FROM d WHERE b.ID = c.ID ) |
INNER JOIN c |
on b.ID = c.ID; |
On 10.4 :
Query A and B : OK (no syntax error : Unknown column 'c.ID' in 'where clause')
On 10.6 :
Query B : KO syntax error : Unknown column 'c.ID' in 'where clause'
Query A : KO Lost connection to server during query (and mariadb restart)
Attachments
Issue Links
- relates to
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- Closed
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- Stalled
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