If the database was already closed using SHUTDOWN IMMEDIATELY, closing a second connection could throw a NullPointerException if there was a local temporary table.

If the database was already closed using SHUTDOWN IMMEDIATELY, closing a second connection could throw a NullPointerException if there was a local temporary table.

Nested UNION/INTERSECT queries with brackets could produce the wrong result if used within a subquery.

Nested UNION/INTERSECT queries with brackets could produce the wrong result if used within a subquery.

Comparing an column against a constant expression with a higher precision or length than the column could give wrong results (the expression was truncated before comparing).

Serialized mode: set getGeneratedKeys and other fields to null if session reconnects. Actually Thomas wrote most of the patch.

MVCC: if the table was locked in exclusive mode (such as SELECT ... FOR UPDATE), another session could query the table.

MVCC: if the page store is disabled, rollback of multiple rows with the same index key did not work correctly.

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