AV in engine when StatementTimeout is active for user statement and some
internal DSQL statement was executed as part of overall execution process
--------------------------------------------------------------------------------------------------------------------------------------------------
Key: CORE-6526
URL: http://tracker.firebirdsql.org/browse/CORE-6526
Project: Firebird Core
Issue Type: Bug
Components: Engine
Affects Versions: 4.0 RC 1, 4.0 Beta 2, 4.0 Beta 1
Reporter: Vlad Khorsun
In the case below the internal DSQL statement is run on commit when index is
modified.
Note, most internal statements used by the engine is ESQL, not DSQL - thus they
are not interact with StatementTImeout.
set term ^;
execute block as begin
in autonomous transaction do
execute statement 'set statistics index rdb$index_0';
end
^
set statement timeout 60
^
execute block as begin
in autonomous transaction do
execute statement 'set statistics index rdb$index_0';
end
^
Statement failed, SQLSTATE = 08006
Error reading data from the connection.
The bug was reported by Pavel Zotov with much more complex scenario.
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