2014-11-18 22:27:31 +01:00
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#
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# MDEV-4285 Server crashes in ptr_compare on NOW and CAST in ORDER BY
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#
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create table t1 (pk int primary key);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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2017-02-06 02:13:36 +01:00
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# In strict mode the query produces result in a different order
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# (not ordered implicitly by PK and indeterministic), so we force sorting.
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# However, sorting also affects warnings, so we'll check them separately.
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--disable_warnings
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--sorted_result
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2014-11-18 22:27:31 +01:00
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select * from t1 order by now(), cast(pk as char(0));
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2017-02-06 02:13:36 +01:00
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--enable_warnings
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show warnings;
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2014-11-18 22:27:31 +01:00
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drop table t1;
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2018-10-14 19:30:23 +02:00
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--echo #
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--echo # MDEV-17020: Assertion `length > 0' failed in ptr_compare upon ORDER BY with bad conversion
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--echo #
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set @save_sql_mode= @@sql_mode;
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SET @@sql_mode= '';
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CREATE TABLE t1 (pk INT PRIMARY KEY);
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INSERT INTO t1 VALUES (1),(2);
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explain
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SELECT * FROM t1 ORDER BY 'foo', CONVERT(pk, CHAR(0)) LIMIT 2;
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SELECT * FROM t1 ORDER BY 'foo', Cast(pk as CHAR(0)) LIMIT 2;
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set @@sql_mode= @save_sql_mode;
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drop table t1;
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