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0a5e4a0191
Updated tests: cases with bugs or which cannot be run with the cursor-protocol were excluded with "--disable_cursor_protocol"/"--enable_cursor_protocol" Fix for v.10.5
65 lines
1.9 KiB
Text
65 lines
1.9 KiB
Text
#
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# Some special cases with empty tables
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#
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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# Enable after fix MDEV-31721
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--disable_cursor_protocol
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create table t1 (nr int(5) not null auto_increment,b blob,str char(10), primary key (nr));
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--disable_ps2_protocol
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select count(*) from t1;
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select * from t1;
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select * from t1 limit 0;
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--enable_ps2_protocol
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show status like "Empty_queries";
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drop table t1;
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#
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# Accessing a non existing table should not increase Empty_queries
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#
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--disable_ps2_protocol
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--error 1146
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select * from t2;
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--enable_ps2_protocol
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show status like "Empty_queries";
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--enable_cursor_protocol
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--echo # End of 4.1 tests
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--echo #
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--echo # MDEV-30333 Wrong result with not_null_range_scan and LEFT JOIN with empty table
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--echo #
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set @save_optimizer_switch=@@optimizer_switch;
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CREATE TABLE t1 (a INT, b INT) ENGINE=MyISAM;
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INSERT INTO t1 (b) VALUES (1),(2);
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CREATE TABLE t2 (c INT) ENGINE=MyISAM;
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SET optimizer_switch= 'not_null_range_scan=off'; # Default
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explain extended SELECT b FROM t1 LEFT JOIN t2 ON t2.c = a WHERE a IS NULL ORDER BY b;
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SELECT b FROM t1 LEFT JOIN t2 ON t2.c = a WHERE a IS NULL ORDER BY b;
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SET optimizer_switch = 'not_null_range_scan=on';
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explain extended SELECT b FROM t1 LEFT JOIN t2 ON t2.c = a WHERE a IS NULL ORDER BY b;
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SELECT b FROM t1 LEFT JOIN t2 ON t2.c = a WHERE a IS NULL ORDER BY b;
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flush tables;
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SELECT b FROM t1 LEFT JOIN t2 ON t2.c = a WHERE a IS NULL ORDER BY b;
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drop table t1,t2;
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--echo # Second test in MDEV-30333
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CREATE TABLE t1 (a int, b varchar(10)) ENGINE=MyISAM;
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INSERT INTO t1 VALUES (69,'foo'),(71,'bar');
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CREATE TABLE t2 (c int) ENGINE=MyISAM;
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INSERT INTO t2 VALUES (1),(2);
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CREATE TABLE t3 (d int, e int, KEY(e)) ENGINE=MyISAM;
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SELECT * FROM t1 LEFT JOIN t2 LEFT JOIN t3 ON t3.e = t3.d ON 1;
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SET optimizer_switch = 'not_null_range_scan=on';
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SELECT * FROM t1 LEFT JOIN t2 LEFT JOIN t3 ON t3.e = t3.d ON 1;
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DROP TABLE t1, t2, t3;
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set @@optimizer_switch=@save_optimizer_switch;
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--echo End of 10.5 tests
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