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699291a8e6
- Make the range-et-al optimizer produce E(#table records after table
condition is applied),
- Make the join optimizer use this value,
- Add "filtered" column to EXPLAIN EXTENDED to show
fraction of records left after table condition is applied
- Adjust test results, add comments
18 lines
698 B
Text
18 lines
698 B
Text
stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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select master_pos_wait('master-bin.999999',0,2);
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master_pos_wait('master-bin.999999',0,2)
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-1
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explain extended select master_pos_wait('master-bin.999999',0,2);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select sql_no_cache master_pos_wait(_latin1'master-bin.999999',0,2) AS `master_pos_wait('master-bin.999999',0,2)`
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select master_pos_wait('master-bin.999999',0);
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stop slave sql_thread;
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master_pos_wait('master-bin.999999',0)
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NULL
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