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Diffstat (limited to '')
| -rw-r--r-- | mysql-test/main/analyze_stmt.test | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/mysql-test/main/analyze_stmt.test b/mysql-test/main/analyze_stmt.test new file mode 100644 index 00000000..b40edc1c --- /dev/null +++ b/mysql-test/main/analyze_stmt.test @@ -0,0 +1,279 @@ +# +# Tests for "ANALYZE $statement" feature +# + +# Fix that analyze delete with join doesn't add extra WHERE clause. +set join_cache_level=2; + +--disable_warnings +drop table if exists t0,t1,t2,t3; +--enable_warnings + +create table t0 (a int) engine=myisam; +INSERT INTO t0 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); + +create table t1 (a int) engine=myisam; +INSERT INTO t1 select * from t0; + +--echo # Try a few basic selects to see that r_rows and r_filtered columns work +analyze select * from t1; +analyze select * from t1 where a<5; +analyze select * from t1 where a>100; + +--echo # ANALYZE DELETE will delete rows: +analyze delete from t1 where a in (2,3,4); +select * from t1; +drop table t1; + +--echo # ANALYZE UPDATE will make updates: +create table t1(a int, b int); +insert into t1 select a,a from t0; +analyze update t1 set b=100+b where a in (6,7,8); +select * from t1; +drop table t1; + +--echo # Check that UNION works +create table t1(a int, b int); +insert into t1 select a,a from t0; +analyze (select * from t1 A where a<5) union (select * from t1 B where a in (5,6)); +analyze (select * from t1 A where a<5) union (select * from t1 B where a in (1,2)); +drop table t1; +drop table t0; + +--echo # +--echo # Try a subquery. +--echo # +create table t0 (a int, b int); +insert into t0 values + (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9); + +create table t1 (a int, b int); +insert into t1 values (1,1),(2,2),(3,3); + +# +# t1 t0 +# a=1 (0,1) 2 rows +# a=2 (0,1,2) 3 rows +# a=3 (0,1,2,3) 4 rows +# +# TOTAL TOTAL= 9 rows. 3 executions, avg=3 rows. +# WHERE is satisfied for 1 row per query, which gives filtered=33.3 + +--echo # See .test file for the right values of r_rows and r_filtered. +analyze select a, a in (select t0.b from t0 where t0.b+1=t1.b+1) from t1; + +--echo # Try a subquery that is never executed +analyze select a, a in (select t0.b from t0 where t0.b+1=t1.b+1) from t1 where t1.a > 5; + +drop table t0, t1; + +--echo # +--echo # Tests for join buffering +--echo # +create table t0 (a int, b int); +insert into t0 values + (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9); +create table t1 like t0; +insert into t1 select * from t0; + +explain select * from t0, t1 where t0.a<5 and t1.a<5; +--echo # These should have filtered=50 +analyze select * from t0, t1 where t0.a<5 and t1.a<5; + +explain select * from t0, t1 where t0.a<5 and t1.b=t0.b; +--echo # Now, t1 should have filtered=10 +analyze select * from t0, t1 where t0.a<5 and t1.b=t0.b; + +explain select * from t0, t1 where t0.a<5 and t1.a<5 and t1.b=t0.b; +--echo # Now, t1 should have filtered=10 +analyze select * from t0, t1 where t0.a<5 and t1.a<5 and t1.b=t0.b; + +--echo # TODO: Check what is counted for "range checked for each record". + +--echo # +--echo # Test for joins +--echo # +create table t2 (key1 int, key2x int, col1 int, key(key1), key(key2x)); +insert into t2 select A.a + 10 *B.a +100 * C.a, + (A.a + 10 *B.a +100 * C.a)*2, + A.a + 10 *B.a +100 * C.a + from t0 A, t0 B, t0 C; + +--echo # This always has matches, filtered=100%. +analyze select * from t1,t2 where t2.key1=t1.a; + +--echo # This shows r_rows=0. It is actually 0.5 (should r_rows be changed to double?) +analyze select * from t1,t2 where t2.key2x=t1.a; + select * from t1,t2 where t2.key2x=t1.a; + +--echo # This has t2.filtered=40% (there are 5 values: {0,1,2,3,4}. two of them have mod=0) +analyze select * from t1,t2 where t2.key2x=t1.a and mod(t2.col1,4)=0; + +drop table t0,t1,t2; + +--echo # +--echo # Check non-merged derived tables +--echo # +create table t0 (a int, b int); +insert into t0 values + (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9); + +update t0 set b=b/3; +analyze select * from (select count(*),max(a),b from t0 group by b) T; +drop table t0; + +--echo # +--echo # Check ORDER/GROUP BY +--echo # +create table t0 (a int, b int); +insert into t0 values + (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9); + +analyze select count(*),max(a),b from t0 where a<7 group by b; +drop table t0; + +--echo # +--echo # Check multi-table UPDATE/DELETE. +--echo # +create table t0 (a int, b int); +create table t1 (a int, b int); +insert into t0 values (0,0),(2,2),(4,4), (8,8); +insert into t1 values (0,0),(2,2), (6,6); + +analyze select * from t0,t1 where t0.a=t1.a; + +analyze update t0,t1 set t1.b=5555 where t0.a=t1.a; +select * from t1; + +analyze delete t1 from t1, t0 where t0.a=t1.a; +select * from t1; + +drop table t0, t1; + +--echo # +--echo # MDEV-6393: ANALYZE SELECT crashes in Explain_query::print_explain with a non-existing column +--echo # +create table t1 (i int); +insert into t1 values (1),(2); +--error ER_BAD_FIELD_ERROR +analyze select a from t1; + +--error ER_BAD_FIELD_ERROR +analyze delete from t1 where a=2; + +--error ER_BAD_FIELD_ERROR +analyze update t1 set a=2; + +create table t2 like t1; +insert into t2 select * from t1; + +--error ER_BAD_FIELD_ERROR +analyze update t2,t1 set t2.i=5 where t2.a=t1.a; + +--error ER_BAD_FIELD_ERROR +analyze delete t1 from t2,t1 where t2.a=t1.a; + +drop table t1, t2; +--echo # +--echo # MDEV-6395: ANALYZE UPDATE/DELETE with impossible where does not produce any output +--echo # +create table t1 (a int, b int, key(a)); +insert into t1 values (1,1),(2,2),(3,3),(4,4),(5,5); + +analyze delete from t1 where 1 > 2; +analyze delete from t1 where a > 30 and a < 10; + +analyze update t1 set b=12345 where 1 > 2; +analyze update t1 set b=12345 where a > 30 and a < 10; + +drop table t1; +--echo # +--echo # MDEV-6398: ANALYZE UPDATE does not populate r_rows +--echo # +create table t1 (i int); +insert into t1 values (1),(2),(3),(4); +analyze update t1 set i=8; +drop table t1; + +--echo # +--echo # Check ANALYZE SELECT INTO +--echo # +create table t1 (i int); +insert into t1 values (1); +analyze select * into @var from t1 ; +drop table t1; + +--echo # +--echo # MDEV-6394: ANALYZE DELETE .. RETURNING fails with ERROR 2027 Malformed packet +--echo # +create table t1 (i int); +analyze delete from t1 returning *; +drop table t1; + +--echo # +--echo # MDEV-6396: ANALYZE INSERT/REPLACE is accepted, but does not produce a plan +--echo # +create table t1 (a int primary key, b int); +analyze insert into t1 values (1,1); +select * from t1; + +analyze replace t1 values (1,2); +select * from t1; +drop table t1; + +--echo # +--echo # MDEV-6400 "ANALYZE SELECT ... INTO @var" doesn't set @var +--echo # +create table t1(a int); +insert into t1 values (1),(2); + +analyze select a into @var from t1 where a <2 ; +--error ER_TOO_MANY_ROWS +analyze select a into @var from t1 ; + +analyze insert into t1 select * from t1; + +analyze select * into outfile '../../tmp/data1.tmp' from t1; +--remove_file $MYSQLTEST_VARDIR/tmp/data1.tmp + +drop table t1; + + +--echo # +--echo # MDEV-7024: Assertion `! is_set()' failed in +--echo # Diagnostics_area::set_eof_status on executing ANALYZE SELECT via PS +--echo # + +create table t1(a int); +prepare stmt from "analyze select * from t1"; +execute stmt; +drop table t1; + +--echo # +--echo # MDEV-7674: ANALYZE shows r_rows=0 +--echo # + +create table t1(a int); +insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); + +create table t2 (a int, key(a)); +insert into t2 values (0),(1); + +analyze select * from t1 straight_join t2 force index(a) where t2.a=t1.a; + +drop table t1,t2; + +--echo # +--echo # MDEV-8063: Unconditional ANALYZE DELETE does not delete rows +--echo # + +create table t1 (i int); +insert into t1 values (1),(2); +analyze delete from t1; +select * from t1; + +insert into t1 values (1),(2); +explain delete from t1; +select * from t1; + +drop table t1; |