38 lines
933 B
MySQL
38 lines
933 B
MySQL
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-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
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-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
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SELECT * FROM dual dontrun;
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@hash
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@oddc optim
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ALTER SESSION SET EVENTS 'trace [SQL_Optimizer] [sql:g40pz6bqjwbzt] controlc_signal()';
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ALTER SYSTEM FLUSH SHARED_POOL;
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SELECT * FROM dual pleaserun;
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SELECT * FROM dual dontrun;
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SELECT * FROM dual dontrun;
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ALTER SESSION SET EVENTS 'trace [SQL_Optimizer] [sql:g40pz6bqjwbzt] off';
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ALTER SESSION SET EVENTS 'trace [Parallel_Execution] [sql:g40pz6bqjwbzt] controlc_signal()';
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SELECT * FROM dual dontrun;
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ALTER SESSION FORCE PARALLEL QUERY PARALLEL 4;
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SELECT * FROM dual dontrun;
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ALTER SESSION SET EVENTS 'trace [Parallel_Execution] [sql:g40pz6bqjwbzt] off';
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ALTER SYSTEM FLUSH SHARED_POOL;
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ALTER SESSION SET EVENTS 'trace [SQL_Optimizer] [sql:g40pz6bqjwbzt] crash';
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SELECT * FROM dual dontrun;
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