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279 lines
7.3 KiB
Text
279 lines
7.3 KiB
Text
#
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# Tests for "ANALYZE $statement" feature
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#
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# Fix that analyze delete with join doesn't add extra WHERE clause.
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set join_cache_level=2;
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--disable_warnings
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drop table if exists t0,t1,t2,t3;
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--enable_warnings
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create table t0 (a int) engine=myisam;
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INSERT INTO t0 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (a int) engine=myisam;
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INSERT INTO t1 select * from t0;
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--echo # Try a few basic selects to see that r_rows and r_filtered columns work
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analyze select * from t1;
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analyze select * from t1 where a<5;
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analyze select * from t1 where a>100;
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--echo # ANALYZE DELETE will delete rows:
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analyze delete from t1 where a in (2,3,4);
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select * from t1;
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drop table t1;
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--echo # ANALYZE UPDATE will make updates:
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create table t1(a int, b int);
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insert into t1 select a,a from t0;
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analyze update t1 set b=100+b where a in (6,7,8);
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select * from t1;
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drop table t1;
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--echo # Check that UNION works
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create table t1(a int, b int);
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insert into t1 select a,a from t0;
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analyze (select * from t1 A where a<5) union (select * from t1 B where a in (5,6));
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analyze (select * from t1 A where a<5) union (select * from t1 B where a in (1,2));
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drop table t1;
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drop table t0;
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--echo #
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--echo # Try a subquery.
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--echo #
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create table t0 (a int, b int);
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insert into t0 values
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(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
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create table t1 (a int, b int);
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insert into t1 values (1,1),(2,2),(3,3);
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#
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# t1 t0
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# a=1 (0,1) 2 rows
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# a=2 (0,1,2) 3 rows
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# a=3 (0,1,2,3) 4 rows
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#
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# TOTAL TOTAL= 9 rows. 3 executions, avg=3 rows.
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# WHERE is satisfied for 1 row per query, which gives filtered=33.3
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--echo # See .test file for the right values of r_rows and r_filtered.
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analyze select a, a in (select t0.b from t0 where t0.b+1=t1.b+1) from t1;
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--echo # Try a subquery that is never executed
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analyze select a, a in (select t0.b from t0 where t0.b+1=t1.b+1) from t1 where t1.a > 5;
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drop table t0, t1;
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--echo #
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--echo # Tests for join buffering
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--echo #
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create table t0 (a int, b int);
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insert into t0 values
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(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
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create table t1 like t0;
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insert into t1 select * from t0;
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explain select * from t0, t1 where t0.a<5 and t1.a<5;
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--echo # These should have filtered=50
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analyze select * from t0, t1 where t0.a<5 and t1.a<5;
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explain select * from t0, t1 where t0.a<5 and t1.b=t0.b;
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--echo # Now, t1 should have filtered=10
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analyze select * from t0, t1 where t0.a<5 and t1.b=t0.b;
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explain select * from t0, t1 where t0.a<5 and t1.a<5 and t1.b=t0.b;
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--echo # Now, t1 should have filtered=10
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analyze select * from t0, t1 where t0.a<5 and t1.a<5 and t1.b=t0.b;
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--echo # TODO: Check what is counted for "range checked for each record".
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--echo #
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--echo # Test for joins
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--echo #
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create table t2 (key1 int, key2x int, col1 int, key(key1), key(key2x));
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insert into t2 select A.a + 10 *B.a +100 * C.a,
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(A.a + 10 *B.a +100 * C.a)*2,
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A.a + 10 *B.a +100 * C.a
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from t0 A, t0 B, t0 C;
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--echo # This always has matches, filtered=100%.
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analyze select * from t1,t2 where t2.key1=t1.a;
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--echo # This shows r_rows=0. It is actually 0.5 (should r_rows be changed to double?)
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analyze select * from t1,t2 where t2.key2x=t1.a;
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select * from t1,t2 where t2.key2x=t1.a;
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--echo # This has t2.filtered=40% (there are 5 values: {0,1,2,3,4}. two of them have mod=0)
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analyze select * from t1,t2 where t2.key2x=t1.a and mod(t2.col1,4)=0;
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drop table t0,t1,t2;
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--echo #
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--echo # Check non-merged derived tables
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--echo #
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create table t0 (a int, b int);
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insert into t0 values
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(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
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update t0 set b=b/3;
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analyze select * from (select count(*),max(a),b from t0 group by b) T;
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drop table t0;
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--echo #
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--echo # Check ORDER/GROUP BY
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--echo #
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create table t0 (a int, b int);
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insert into t0 values
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(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
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analyze select count(*),max(a),b from t0 where a<7 group by b;
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drop table t0;
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--echo #
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--echo # Check multi-table UPDATE/DELETE.
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--echo #
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create table t0 (a int, b int);
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create table t1 (a int, b int);
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insert into t0 values (0,0),(2,2),(4,4), (8,8);
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insert into t1 values (0,0),(2,2), (6,6);
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analyze select * from t0,t1 where t0.a=t1.a;
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analyze update t0,t1 set t1.b=5555 where t0.a=t1.a;
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select * from t1;
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analyze delete t1 from t1, t0 where t0.a=t1.a;
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select * from t1;
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drop table t0, t1;
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--echo #
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--echo # MDEV-6393: ANALYZE SELECT crashes in Explain_query::print_explain with a non-existing column
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--echo #
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create table t1 (i int);
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insert into t1 values (1),(2);
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--error ER_BAD_FIELD_ERROR
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analyze select a from t1;
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--error ER_BAD_FIELD_ERROR
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analyze delete from t1 where a=2;
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--error ER_BAD_FIELD_ERROR
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analyze update t1 set a=2;
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create table t2 like t1;
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insert into t2 select * from t1;
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--error ER_BAD_FIELD_ERROR
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analyze update t2,t1 set t2.i=5 where t2.a=t1.a;
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--error ER_BAD_FIELD_ERROR
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analyze delete t1 from t2,t1 where t2.a=t1.a;
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drop table t1, t2;
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--echo #
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--echo # MDEV-6395: ANALYZE UPDATE/DELETE with impossible where does not produce any output
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--echo #
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create table t1 (a int, b int, key(a));
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insert into t1 values (1,1),(2,2),(3,3),(4,4),(5,5);
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analyze delete from t1 where 1 > 2;
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analyze delete from t1 where a > 30 and a < 10;
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analyze update t1 set b=12345 where 1 > 2;
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analyze update t1 set b=12345 where a > 30 and a < 10;
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drop table t1;
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--echo #
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--echo # MDEV-6398: ANALYZE UPDATE does not populate r_rows
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--echo #
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create table t1 (i int);
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insert into t1 values (1),(2),(3),(4);
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analyze update t1 set i=8;
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drop table t1;
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--echo #
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--echo # Check ANALYZE SELECT INTO
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--echo #
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create table t1 (i int);
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insert into t1 values (1);
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analyze select * into @var from t1 ;
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drop table t1;
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--echo #
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--echo # MDEV-6394: ANALYZE DELETE .. RETURNING fails with ERROR 2027 Malformed packet
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--echo #
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create table t1 (i int);
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analyze delete from t1 returning *;
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drop table t1;
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--echo #
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--echo # MDEV-6396: ANALYZE INSERT/REPLACE is accepted, but does not produce a plan
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--echo #
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create table t1 (a int primary key, b int);
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analyze insert into t1 values (1,1);
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select * from t1;
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analyze replace t1 values (1,2);
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select * from t1;
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drop table t1;
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--echo #
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--echo # MDEV-6400 "ANALYZE SELECT ... INTO @var" doesn't set @var
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--echo #
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create table t1(a int);
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insert into t1 values (1),(2);
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analyze select a into @var from t1 where a <2 ;
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--error ER_TOO_MANY_ROWS
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analyze select a into @var from t1 ;
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analyze insert into t1 select * from t1;
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analyze select * into outfile '../../tmp/data1.tmp' from t1;
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--remove_file $MYSQLTEST_VARDIR/tmp/data1.tmp
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drop table t1;
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--echo #
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--echo # MDEV-7024: Assertion `! is_set()' failed in
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--echo # Diagnostics_area::set_eof_status on executing ANALYZE SELECT via PS
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--echo #
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create table t1(a int);
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prepare stmt from "analyze select * from t1";
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execute stmt;
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drop table t1;
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--echo #
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--echo # MDEV-7674: ANALYZE shows r_rows=0
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--echo #
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create table t1(a int);
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insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t2 (a int, key(a));
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insert into t2 values (0),(1);
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analyze select * from t1 straight_join t2 force index(a) where t2.a=t1.a;
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drop table t1,t2;
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--echo #
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--echo # MDEV-8063: Unconditional ANALYZE DELETE does not delete rows
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--echo #
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create table t1 (i int);
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insert into t1 values (1),(2);
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analyze delete from t1;
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select * from t1;
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insert into t1 values (1),(2);
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explain delete from t1;
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select * from t1;
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drop table t1;
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