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660 lines
20 KiB
Text
660 lines
20 KiB
Text
#
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# Tests for LIMIT ROWS EXAMINED, MDEV-28
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#
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--source include/default_optimizer_switch.inc
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call mtr.add_suppression("Sort aborted.*");
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set @save_join_cache_level = @@join_cache_level;
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create table t1 (c1 char(2)) charset=latin1;
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create table t2 (c2 char(2)) charset=latin1;
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insert into t1 values ('bb'), ('cc'), ('aa'), ('dd');
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insert into t2 values ('bb'), ('cc'), ('dd'), ('ff');
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create table t1i (c1 char(2) key) charset=latin1;
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create table t2i (c2 char(2) key) charset=latin1;
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insert into t1i values ('bb'), ('cc'), ('aa'), ('dd');
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insert into t2i values ('bb'), ('cc'), ('dd'), ('ff');
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--echo =========================================================================
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--echo Simple joins
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--echo =========================================================================
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#Check after fix MDEV-31522
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--disable_cursor_protocol
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--echo Simple nested loops join without blocking
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set @@join_cache_level=0;
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explain
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 2;
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 2;
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explain
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select * from t1i, t2i where c1 = c2 LIMIT ROWS EXAMINED 4;
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select * from t1i, t2i where c1 = c2 LIMIT ROWS EXAMINED 4;
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--echo Blocked nested loops join, empty result set because of blocking
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set @@join_cache_level=1;
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explain
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 6;
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 6;
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explain
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select * from t1i, t2i where c1 = c2 LIMIT ROWS EXAMINED 6;
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select * from t1i, t2i where c1 = c2 LIMIT ROWS EXAMINED 6;
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set @@join_cache_level=6;
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explain
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 3;
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 3;
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explain
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select * from t1i, t2i where c1 = c2 LIMIT ROWS EXAMINED 6;
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select * from t1i, t2i where c1 = c2 LIMIT ROWS EXAMINED 6;
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--echo Mix LIMIT ROWS EXAMINED with LIMIT
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set @@join_cache_level=0;
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explain
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select * from t1, t2 where c1 < c2 LIMIT 1 ROWS EXAMINED 4;
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select * from t1, t2 where c1 < c2 LIMIT 1 ROWS EXAMINED 4;
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explain
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select * from t1, t2 where c1 < c2 LIMIT 1,1 ROWS EXAMINED 4;
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select * from t1, t2 where c1 < c2 LIMIT 1,1 ROWS EXAMINED 4;
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--echo Empty table optimized away during constant optimization
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create table t0 (c0 int);
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explain
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select * from t0 LIMIT ROWS EXAMINED 0;
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explain
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select * from t0 LIMIT ROWS EXAMINED 1;
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select * from t0 LIMIT ROWS EXAMINED 1;
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drop table t0;
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create table t0 (c0 char(2) primary key) charset=latin1;
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insert into t0 values ('bb'), ('cc'), ('aa');
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explain
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select * from t0 where c0 = 'bb' LIMIT ROWS EXAMINED 0;
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select * from t0 where c0 = 'bb' LIMIT ROWS EXAMINED 0;
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explain
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select * from t0, t1 where c0 = 'bb' and c1 > c0 LIMIT ROWS EXAMINED 0;
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select * from t0, t1 where c0 = 'bb' and c1 > c0 LIMIT ROWS EXAMINED 0;
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set @@join_cache_level = @save_join_cache_level;
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drop table t0;
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--echo =========================================================================
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--echo LIMIT ROWS EXAMINED with parameter argument
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--echo =========================================================================
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set @@join_cache_level=0;
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set @l = 2;
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--echo Prepared statement parameter
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prepare st1 from "select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED ?";
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execute st1 using @l;
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deallocate prepare st1;
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--echo User variable (not supported for LIMIT in MariaDB 5.3/MySQL 5.1)
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--error 1064
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED @l;
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--echo Stored procedure parameter
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delimiter |;
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create procedure test_limit_rows(l int)
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begin
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED l;
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end|
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delimiter ;|
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call test_limit_rows(3);
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drop procedure test_limit_rows;
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set @@join_cache_level = @save_join_cache_level;
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--echo =========================================================================
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--echo UNIONs (with several LIMIT ROWS EXAMINED clauses)
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--echo =========================================================================
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(select * from t1, t2 where c1 = c2)
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UNION
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(select * from t1, t2 where c1 < c2) LIMIT ROWS EXAMINED 6;
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(select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 0)
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UNION
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(select * from t1, t2 where c1 < c2 LIMIT ROWS EXAMINED 6);
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--error ER_PARSE_ERROR
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select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 0
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UNION
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select * from t1, t2 where c1 < c2 LIMIT ROWS EXAMINED 6;
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(select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 0)
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UNION
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(select * from t1, t2 where c1 < c2 LIMIT ROWS EXAMINED 0)
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LIMIT ROWS EXAMINED 6;
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(select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 0)
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UNION
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(select * from t1, t2 where c1 < c2 LIMIT ROWS EXAMINED 0)
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LIMIT 1 ROWS EXAMINED 6;
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(select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 0)
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UNION
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(select * from t1, t2 where c1 < c2 LIMIT ROWS EXAMINED 0)
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LIMIT 2 ROWS EXAMINED 10;
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--echo =========================================================================
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--echo Subqueries (with several LIMIT ROWS EXAMINED clauses)
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--echo =========================================================================
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--echo Subqueries, semi-join
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 11);
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 11);
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ')
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LIMIT ROWS EXAMINED 11;
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ')
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LIMIT ROWS EXAMINED 11;
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)
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LIMIT ROWS EXAMINED 11;
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)
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LIMIT ROWS EXAMINED 11;
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explain
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select * from t1i
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where c1 IN (select * from t2i where c2 > ' ')
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LIMIT ROWS EXAMINED 6;
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select * from t1i
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where c1 IN (select * from t2i where c2 > ' ')
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LIMIT ROWS EXAMINED 6;
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--echo Subqueries with IN-TO-EXISTS
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set @@optimizer_switch='semijoin=off,in_to_exists=on,materialization=off';
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 4);
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 4);
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ')
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LIMIT ROWS EXAMINED 4;
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ')
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LIMIT ROWS EXAMINED 4;
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)
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LIMIT ROWS EXAMINED 4;
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)
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LIMIT ROWS EXAMINED 4;
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explain
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select * from t1i
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where c1 IN (select * from t2i where c2 > ' ')
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LIMIT ROWS EXAMINED 9;
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select * from t1i
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where c1 IN (select * from t2i where c2 > ' ')
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LIMIT ROWS EXAMINED 9;
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--echo Same as above, without subquery cache
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set @@optimizer_switch='subquery_cache=off';
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 2);
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ')
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LIMIT ROWS EXAMINED 2;
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)
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LIMIT ROWS EXAMINED 2;
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select * from t1i
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where c1 IN (select * from t2i where c2 > ' ')
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LIMIT ROWS EXAMINED 5;
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--echo Subqueries with materialization
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set @@optimizer_switch='semijoin=off,in_to_exists=off,materialization=on,subquery_cache=on';
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 13);
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 13);
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ') LIMIT ROWS EXAMINED 13;
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ') LIMIT ROWS EXAMINED 13;
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explain
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)
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LIMIT ROWS EXAMINED 13;
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select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)
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LIMIT ROWS EXAMINED 13;
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explain
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select * from t1i
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where c1 IN (select * from t2i where c2 > ' ') LIMIT ROWS EXAMINED 17;
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select * from t1i
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where c1 IN (select * from t2i where c2 > ' ') LIMIT ROWS EXAMINED 17;
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set @@optimizer_switch='default';
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--echo =========================================================================
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--echo Views and derived tables
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--echo =========================================================================
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--error 1235
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create view v1 as
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select * from t1 where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 13);
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create view v1 as
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select * from t1 where c1 IN (select * from t2 where c2 > ' ');
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select * from v1;
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select * from v1 LIMIT ROWS EXAMINED 10;
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select * from v1 LIMIT ROWS EXAMINED 8;
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select * from v1 LIMIT ROWS EXAMINED 3;
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drop view v1;
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explain
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select *
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from (select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)) as tmp
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LIMIT ROWS EXAMINED 11;
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select *
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from (select * from t1
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where c1 IN (select * from t2 where c2 > ' ' LIMIT ROWS EXAMINED 0)) as tmp
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LIMIT ROWS EXAMINED 11;
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--echo =========================================================================
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--echo Aggregation
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--echo =========================================================================
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create table t3 (c1 char(2), c2 int) charset=latin1;
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insert into t3 values
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('aa', 1), ('aa', 2),
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('bb', 3), ('bb', 4), ('bb', 5);
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explain
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select c1, sum(c2) from t3 group by c1;
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select c1, sum(c2) from t3 group by c1;
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explain
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select c1, sum(c2) from t3 group by c1 LIMIT ROWS EXAMINED 0;
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select c1, sum(c2) from t3 group by c1 LIMIT ROWS EXAMINED 0;
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select c1, sum(c2) from t3 group by c1 LIMIT ROWS EXAMINED 1;
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select c1, sum(c2) from t3 group by c1 LIMIT ROWS EXAMINED 20;
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select c1, sum(c2) from t3 group by c1 LIMIT ROWS EXAMINED 21;
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create table t3i (c1 char(2), c2 int) charset=latin1;
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create index it3i on t3i(c1);
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create index it3j on t3i(c2,c1);
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insert into t3i values
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('aa', 1), ('aa', 2),
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('bb', 3), ('bb', 4), ('bb', 5);
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explain
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select c1, sum(c2) from t3i group by c1 LIMIT ROWS EXAMINED 0;
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select c1, sum(c2) from t3i group by c1 LIMIT ROWS EXAMINED 0;
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select c1, sum(c2) from t3i group by c1 LIMIT ROWS EXAMINED 1;
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select c1, sum(c2) from t3i group by c1 LIMIT ROWS EXAMINED 20;
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select c1, sum(c2) from t3i group by c1 LIMIT ROWS EXAMINED 21;
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--echo Aggregation without grouping
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explain
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select min(c2) from t3 LIMIT ROWS EXAMINED 5;
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select min(c2) from t3 LIMIT ROWS EXAMINED 5;
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select max(c2) from t3 LIMIT ROWS EXAMINED 6;
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select max(c2) from t3 LIMIT ROWS EXAMINED 0;
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explain
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select max(c2) from t3 where c2 > 10 LIMIT ROWS EXAMINED 5;
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select max(c2) from t3 where c2 > 10 LIMIT ROWS EXAMINED 5;
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select max(c2) from t3 where c2 > 10 LIMIT ROWS EXAMINED 6;
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select max(c2) from t3 where c2 > 10 LIMIT ROWS EXAMINED 0;
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explain
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select count(c2) from t3 LIMIT ROWS EXAMINED 5;
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select count(c2) from t3 LIMIT ROWS EXAMINED 5;
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select count(c2) from t3 LIMIT ROWS EXAMINED 6;
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select count(c2) from t3 LIMIT ROWS EXAMINED 0;
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explain
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select count(c2) from t3 where c2 > 10 LIMIT ROWS EXAMINED 5;
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select count(c2) from t3 where c2 > 10 LIMIT ROWS EXAMINED 5;
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select count(c2) from t3 where c2 > 10 LIMIT ROWS EXAMINED 6;
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explain
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select sum(c2) from t3 LIMIT ROWS EXAMINED 5;
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select sum(c2) from t3 LIMIT ROWS EXAMINED 5;
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select sum(c2) from t3 LIMIT ROWS EXAMINED 6;
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--echo The query result is found during optimization, LIMIT ROWS EXAMINED has no effect.
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explain
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select max(c1) from t3i LIMIT ROWS EXAMINED 0;
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select max(c1) from t3i LIMIT ROWS EXAMINED 0;
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create table t3_empty like t3;
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explain
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select max(c1) from t3_empty LIMIT ROWS EXAMINED 0;
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select max(c1) from t3_empty LIMIT ROWS EXAMINED 0;
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drop table t3_empty;
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--echo =========================================================================
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--echo Sorting
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--echo =========================================================================
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explain
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select c1, c2 from t3 order by c2, c1 LIMIT ROWS EXAMINED 2;
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--error 1028
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select c1, c2 from t3 order by c2, c1 LIMIT ROWS EXAMINED 2;
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explain
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select c1, c2 from t3i order by c2, c1 LIMIT ROWS EXAMINED 2;
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select c1, c2 from t3i order by c2, c1 LIMIT ROWS EXAMINED 2;
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explain
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select c1, c2 from t3i order by c2, c1 desc LIMIT ROWS EXAMINED 2;
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--error 1028
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select c1, c2 from t3i order by c2, c1 desc LIMIT ROWS EXAMINED 2;
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drop table t3,t3i;
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--echo =========================================================================
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--echo INSERT/DELETE/UPDATE
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--echo =========================================================================
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--echo INSERT ... SELECT
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CREATE TABLE t4 (a int);
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INSERT INTO t4 values (1), (2);
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INSERT IGNORE INTO t4 SELECT a + 2 FROM t4 LIMIT ROWS EXAMINED 0;
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select * from t4;
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INSERT INTO t4 SELECT a + 2 FROM t4 LIMIT ROWS EXAMINED 6;
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select * from t4;
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drop table t4;
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--echo DELETE - LIMIT ROWS EXAMINED not supported
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CREATE TABLE t4 (a int);
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INSERT INTO t4 values (1), (2);
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--error 1064
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DELETE FROM t4 WHERE t4.a > 0 LIMIT ROWS EXAMINED 0;
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--error 1064
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DELETE FROM t4 WHERE t4.a > 0 LIMIT 0 ROWS EXAMINED 0;
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drop table t4;
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--echo UPDATE - LIMIT ROWS EXAMINED not supported
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CREATE TABLE t4 (a int);
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INSERT INTO t4 values (1), (2);
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--error 1064
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update t4 set a=a+10 LIMIT ROWS EXAMINED 0;
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--error 1064
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update t4 set a=a+10 LIMIT 0 ROWS EXAMINED 0;
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drop table t4;
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drop table t1,t2,t1i,t2i;
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--echo =========================================================================
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--echo Test cases for bugs
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--echo =========================================================================
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--echo
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--echo MDEV-115
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--echo
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SET @@optimizer_switch='in_to_exists=on,outer_join_with_cache=on';
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CREATE TABLE t1 ( a VARCHAR(3) ) ENGINE=MyISAM;
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INSERT INTO t1 VALUES ('USA'),('CAN');
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CREATE TABLE t2 ( b INT );
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INSERT INTO t2 VALUES (3899),(3914),(3888);
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CREATE TABLE t3 ( c VARCHAR(33), d INT );
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INSERT INTO t3 VALUES ('USASpanish',8),('USATagalog',0),('USAVietnamese',0);
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EXPLAIN
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SELECT DISTINCT a AS field1 FROM t1, t2
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WHERE EXISTS (SELECT c FROM t3 LEFT JOIN t2 ON b = d)
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HAVING field1 > 'aaa' LIMIT ROWS EXAMINED 20;
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SELECT DISTINCT a AS field1 FROM t1, t2
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WHERE EXISTS (SELECT c FROM t3 LEFT JOIN t2 ON b = d)
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HAVING field1 > 'aaa' LIMIT ROWS EXAMINED 20;
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EXPLAIN
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SELECT DISTINCT a FROM t1, t2 HAVING a > ' ' LIMIT ROWS EXAMINED 14;
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SELECT DISTINCT a FROM t1, t2 HAVING a > ' ' LIMIT ROWS EXAMINED 14;
|
|
|
|
SELECT DISTINCT a FROM t1, t2 HAVING a > ' ' LIMIT ROWS EXAMINED 15;
|
|
SELECT DISTINCT a FROM t1, t2 HAVING a > ' ' LIMIT ROWS EXAMINED 16;
|
|
--enable_cursor_protocol
|
|
|
|
drop table t1,t2,t3;
|
|
|
|
set @@optimizer_switch='default';
|
|
|
|
--echo
|
|
--echo MDEV-153
|
|
--echo
|
|
|
|
CREATE TABLE t1 ( a TIME, b DATETIME, KEY(a), KEY(b) ) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES
|
|
('21:22:34.025509', '2002-02-13 17:30:06.013935'),
|
|
('10:50:38.059966', '2008-09-27 00:34:58.026613'),
|
|
('00:21:38.058143', '2007-05-28 00:00:00');
|
|
|
|
CREATE TABLE t2 ( c INT, d TIME, e DATETIME, f VARCHAR(1), KEY(c) ) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES
|
|
(0, '11:03:22.062907', '2007-06-02 11:16:01.053212', 'a'),
|
|
(0, '08:14:05.001407', '1900-01-01 00:00:00', 'm'),
|
|
(5, '19:03:16.024974', '1900-01-01 00:00:00', 'f'),
|
|
(1, '07:23:34.034234', '2000-11-26 05:01:11.054228', 'z'),
|
|
(6, '12:29:32.019411', '2006-02-13 00:00:00', 'f'),
|
|
(6, '06:07:10.010496', '2007-06-08 04:35:26.020373', 'a'),
|
|
(7, '22:55:09.020772', '2005-04-27 00:00:00', 'i');
|
|
|
|
EXPLAIN
|
|
SELECT a AS field1, alias2.d AS field2, alias2.f AS field3, alias2.e AS field4, b AS field5
|
|
FROM t1, t2 AS alias2, t2 AS alias3
|
|
WHERE alias3.c IN ( SELECT 1 UNION SELECT 6 )
|
|
GROUP BY field1, field2, field3, field4, field5
|
|
LIMIT ROWS EXAMINED 120;
|
|
|
|
--disable_cursor_protocol
|
|
--disable_ps2_protocol
|
|
FLUSH STATUS;
|
|
SELECT a AS field1, alias2.d AS field2, alias2.f AS field3, alias2.e AS field4, b AS field5
|
|
FROM t1, t2 AS alias2, t2 AS alias3
|
|
WHERE alias3.c IN ( SELECT 1 UNION SELECT 6 )
|
|
GROUP BY field1, field2, field3, field4, field5
|
|
LIMIT ROWS EXAMINED 120;
|
|
SHOW STATUS LIKE 'Handler_read%';
|
|
SHOW STATUS LIKE 'Handler_tmp%';
|
|
|
|
FLUSH STATUS;
|
|
SELECT a AS field1, alias2.d AS field2, alias2.f AS field3, alias2.e AS field4, b AS field5
|
|
FROM t1, t2 AS alias2, t2 AS alias3
|
|
WHERE alias3.c IN ( SELECT 1 UNION SELECT 6 )
|
|
GROUP BY field1, field2, field3, field4, field5
|
|
LIMIT ROWS EXAMINED 124;
|
|
SHOW STATUS LIKE 'Handler_read%';
|
|
SHOW STATUS LIKE 'Handler_tmp%';
|
|
--enable_ps2_protocol
|
|
--enable_cursor_protocol
|
|
|
|
drop table t1, t2;
|
|
|
|
--echo
|
|
--echo MDEV-161 LIMIT_ROWS EXAMINED: query with the limit and NOT EXISTS, without GROUP BY or aggregate,
|
|
--echo returns rows, while the same query without the limit returns empty set
|
|
--echo
|
|
|
|
CREATE TABLE t1 ( a INT, b INT );
|
|
INSERT INTO t1 VALUES (3911,17),(3847,33),(3857,26);
|
|
|
|
CREATE TABLE t2 ( c VARCHAR(16) );
|
|
INSERT INTO t2 VALUES ('English'),('French'),('German');
|
|
|
|
CREATE TABLE t3 ( d INT, e VARCHAR(32) );
|
|
INSERT INTO t3 VALUES (3813,'United States'),(3814,'United States');
|
|
|
|
SELECT * FROM t1 AS alias1, t2 AS alias2
|
|
WHERE NOT EXISTS (
|
|
SELECT * FROM t1 LEFT OUTER JOIN t3
|
|
ON (d = a)
|
|
WHERE b <= alias1.b OR e != alias2.c
|
|
);
|
|
|
|
SELECT * FROM t1 AS alias1, t2 AS alias2
|
|
WHERE NOT EXISTS (
|
|
SELECT * FROM t1 LEFT OUTER JOIN t3
|
|
ON (d = a)
|
|
WHERE b <= alias1.b OR e != alias2.c
|
|
) LIMIT ROWS EXAMINED 20;
|
|
|
|
drop table t1, t2, t3;
|
|
|
|
--echo
|
|
--echo MDEV-174: LIMIT ROWS EXAMINED: Assertion `0' failed in net_end_statement(THD*)
|
|
--echo with subquery in SELECT, constant table, aggregate function
|
|
--echo
|
|
|
|
CREATE TABLE t1 ( a INT );
|
|
CREATE TABLE t2 ( b INT, c INT, KEY(c) );
|
|
INSERT INTO t2 VALUES
|
|
(5, 0),(3, 4),(6, 1),
|
|
(5, 8),(4, 9),(8, 1);
|
|
|
|
--disable_ps2_protocol
|
|
SELECT (SELECT MAX(c) FROM t1, t2)
|
|
FROM t2
|
|
WHERE c = (SELECT MAX(b) FROM t2)
|
|
LIMIT ROWS EXAMINED 3;
|
|
--enable_ps2_protocol
|
|
|
|
drop table t1, t2;
|
|
|
|
--echo
|
|
--echo MDEV-178: LIMIT ROWS EXAMINED: Assertion `0' failed in net_end_statement(THD*) on the
|
|
--echo 2nd PS execution, with DISTINCT, FROM subquery or view in SELECT, JOIN in nested subquery
|
|
--echo
|
|
|
|
CREATE TABLE t1 ( a INT );
|
|
INSERT INTO t1 VALUES (2),(3),(150);
|
|
CREATE TABLE t2 ( b INT );
|
|
INSERT INTO t2 VALUES (2),(17),(3),(6);
|
|
|
|
CREATE VIEW v AS
|
|
SELECT DISTINCT * FROM t1 WHERE a > (SELECT COUNT(*) FROM t1, t2 WHERE a = b);
|
|
|
|
PREPARE ps FROM 'SELECT * FROM v LIMIT ROWS EXAMINED 21';
|
|
|
|
EXECUTE ps;
|
|
EXECUTE ps;
|
|
|
|
drop view v;
|
|
drop table t1, t2;
|
|
|
|
--echo #
|
|
--echo # 10.1 Test
|
|
--echo #
|
|
--echo # MDEV-17729: Assertion `! is_set() || m_can_overwrite_status'
|
|
--echo # failed in Diagnostics_area::set_error_status
|
|
--echo #
|
|
set @old_mode= @@sql_mode;
|
|
|
|
CREATE TABLE t1(id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,k INT, c CHAR(20));
|
|
INSERT INTO t1 (k,c) VALUES(0,'0'), (0,'0'),(0,'0'),(0,'0'),(0,'0'),(0,'0'),(0,'0');
|
|
|
|
SET @@sql_mode='STRICT_TRANS_TABLES';
|
|
INSERT INTO t1 (c) SELECT k FROM t1 LIMIT ROWS EXAMINED 2;
|
|
|
|
SET @@sql_mode=@old_mode;
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-18117: Crash with Explain extended when using limit rows examined
|
|
--echo #
|
|
|
|
create table t1 (c1 char(2));
|
|
create table t2 (c2 char(2));
|
|
insert into t1 values ('bb'), ('cc'), ('aa'), ('dd');
|
|
insert into t2 values ('bb'), ('cc'), ('dd'), ('ff');
|
|
explain extended
|
|
select * from t1, t2 where c1 = c2 LIMIT ROWS EXAMINED 2;
|
|
drop table t1,t2;
|
|
|
|
--echo # End of 10.4 tests
|
|
|
|
--echo #
|
|
--echo # MDEV-35571: Connection hangs after query on a partitioned table with UNION and LIMIT ROWS EXAMINED
|
|
--echo #
|
|
|
|
--source include/have_partition.inc
|
|
--source include/have_sequence.inc
|
|
|
|
# Simplified test
|
|
create table t1 (a int);
|
|
insert into t1 values (1), (2);
|
|
select * from t1 UNION ALL select * from t1 LIMIT ROWS EXAMINED 1;
|
|
# UNION DISTINCT produces the same result here. Note that this is not
|
|
# affected by the MDEV-35571 patch
|
|
select * from t1 UNION DISTINCT select * from t1 LIMIT ROWS EXAMINED 1;
|
|
DROP TABLE t1;
|
|
|
|
# Simplified test with order by
|
|
create table t1 (a int);
|
|
insert into t1 values (1), (2);
|
|
(select a from t1 UNION ALL select a from t1) order by a desc LIMIT ROWS EXAMINED 2;
|
|
# UNION DISTINCT produces the same result with order by desc. Note
|
|
# that this is not affected by the MDEV-35571 patch
|
|
(select a from t1 UNION DISTINCT select a from t1) order by a desc LIMIT ROWS EXAMINED 2;
|
|
DROP TABLE t1;
|
|
|
|
# Original test
|
|
CREATE TABLE t1 (a INT);
|
|
INSERT INTO t1 SELECT seq%25 FROM seq_1_to_100;
|
|
|
|
CREATE TABLE t2 (b INT, c INT, KEY(b)) PARTITION BY HASH(c) PARTITIONS 12;
|
|
INSERT INTO t2 SELECT seq, seq FROM seq_1_to_10;
|
|
|
|
SELECT COUNT(*) FROM t1 JOIN t2 ON (b = a) UNION ALL SELECT COUNT(*) FROM t1 JOIN t2 ON (b = a) LIMIT ROWS EXAMINED 100;
|
|
# UNION DISTINCT produces the same result here. Note that this is not
|
|
# affected by the MDEV-35571 patch
|
|
SELECT COUNT(*) FROM t1 JOIN t2 ON (b = a) UNION DISTINCT SELECT COUNT(*) FROM t1 JOIN t2 ON (b = a) LIMIT ROWS EXAMINED 100;
|
|
|
|
DROP TABLE t1, t2;
|
|
|
|
--echo # End of 10.5 tests
|