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Diffstat (limited to 'mysql-test/t/explain_json.test')
| -rw-r--r-- | mysql-test/t/explain_json.test | 419 |
1 files changed, 0 insertions, 419 deletions
diff --git a/mysql-test/t/explain_json.test b/mysql-test/t/explain_json.test deleted file mode 100644 index c3665b1818b..00000000000 --- a/mysql-test/t/explain_json.test +++ /dev/null @@ -1,419 +0,0 @@ -# -# EXPLAIN FORMAT=JSON tests. These are tests developed for MariaDB. -# ---disable_warnings -drop table if exists t0,t1,t2; ---enable_warnings - -create table t0(a int); -insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); - -explain format=json select * from t0; - -explain format=json select * from t0 where 1>2; - -explain format=json select * from t0 where a<3; - ---echo # Try a basic join -create table t1 (a int, b int, filler char(32), key(a)); -insert into t1 -select - a.a + b.a* 10 + c.a * 100, - a.a + b.a* 10 + c.a * 100, - 'filler' -from t0 a, t0 b, t0 c; - -explain format=json select * from t0,t1 where t1.a=t0.a; - ---echo # Try range and index_merge -create table t2 (a1 int, a2 int, b1 int, b2 int, key(a1,a2), key(b1,b2)); -insert into t2 select a,a,a,a from t1; - -explain format=json select * from t2 where a1<5; - -explain format=json select * from t2 where a1=1 or b1=2; -explain format=json select * from t2 where a1=1 or (b1=2 and b2=3); - -explain format=json select * from t2 where (a1=1 and a2=1) or - (b1=2 and b2=1); - ---echo # Try ref access on two key components - -explain format=json select * from t0,t2 where t2.b1=t0.a and t2.b2=4; - -drop table t1,t2; - ---echo # ---echo # Try a UNION ---echo # -explain format=json select * from t0 A union select * from t0 B; -explain format=json select * from t0 A union all select * from t0 B; - ---echo # ---echo # Subqueries ---echo # -create table t1 (a int, b int); -insert into t1 select a,a from t0; -explain format=json select a, a > (select max(b) from t1 where t1.b=t0.a) from t0; - -explain format=json -select * from t0 where - a > (select max(b) from t1 where t1.b=t0.a) or a < 3 ; - -drop table t1; - ---echo # ---echo # Join buffering ---echo # -create table t1 (a int, b int); -insert into t1 select tbl1.a+10*tbl2.a, tbl1.a+10*tbl2.a from t0 tbl1, t0 tbl2; - -explain format=json -select * from t1 tbl1, t1 tbl2 where tbl1.a=tbl2.a and tbl1.b < 3 and tbl2.b < 5; - -drop table t1; - ---echo # ---echo # Single-table UPDATE/DELETE, INSERT ---echo # -explain format=json delete from t0; -explain format=json delete from t0 where 1 > 2; - -explain format=json delete from t0 where a < 3; - -explain format=json update t0 set a=3 where a in (2,3,4); - -explain format=json insert into t0 values (1); - -create table t1 like t0; -explain format=json insert into t1 values ((select max(a) from t0)); - -drop table t1; - ---echo # ---echo # A derived table ---echo # -create table t1 (a int, b int); -insert into t1 select a,a from t0; -explain format=json -select * from (select a, count(*) as cnt from t1 group by a) as tbl -where cnt>0; - -explain format=json -select * from (select a, count(*) as cnt from t1 group by a) as tbl1, t1 as -tbl2 where cnt=tbl2.a; - ---echo # ---echo # Non-merged semi-join (aka JTBM) ---echo # -explain format=json -select * from t1 where a in (select max(a) from t1 group by b); - ---echo # ---echo # Semi-join Materialization ---echo # -create table t2 like t1; -insert into t2 select * from t1; -explain format=json -select * from t1,t2 where t1.a in ( select a from t0); - ---echo # ---echo # First-Match ---echo # -explain -select * from t2 where t2.a in ( select a from t1 where t1.b=t2.b); -explain format=json -select * from t2 where t2.a in ( select a from t1 where t1.b=t2.b); - ---echo # ---echo # Duplicate Weedout ---echo # -set @tmp= @@optimizer_switch; -set optimizer_switch='firstmatch=off'; -explain -select * from t2 where t2.a in ( select a from t1 where t1.b=t2.b); -explain format=json -select * from t2 where t2.a in ( select a from t1 where t1.b=t2.b); -set optimizer_switch=@tmp; - -drop table t1,t2; - ---echo # ---echo # MRR for range access (no BKA, just MRR) ---echo # -create table t1 (a int, b int, key(a)); -insert into t1 select tbl1.a+10*tbl2.a, 12345 from t0 tbl1, t0 tbl2; -set @tmp= @@optimizer_switch; -set optimizer_switch='mrr=on,mrr_sort_keys=on'; - -explain format=json select * from t1 where a < 3; - ---echo # 'Range checked for each record' -set optimizer_switch=@tmp; -explain format=json -select * from t1 tbl1, t1 tbl2 where tbl2.a < tbl1.b; - -drop table t1; -drop table t0; - ---echo # ---echo # MDEV-7265: "Full scan on NULL key", the join case ---echo # - -CREATE TABLE t1 (a INT, KEY(a)); -INSERT INTO t1 VALUES (1),(2); - -CREATE TABLE t2 (b INT); -INSERT INTO t2 VALUES (3),(4); - -EXPLAIN FORMAT=JSON SELECT * FROM t1 AS outer_t1 WHERE a <> ALL ( SELECT a FROM t1, t2 WHERE b <> outer_t1.a ); - -DROP TABLE t1,t2; - ---echo # ---echo # Join's constant expression ---echo # -create table t0(a int); -insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); - -create table t1(a int, b int); -insert into t1 select tbl1.a+10*tbl2.a, 1234 from t0 tbl1, t0 tbl2; - -explain format=json -select * from t0 -where - 20000 > all (select max(tbl1.a + tbl2.a) - from t1 tbl1, t1 tbl2 where tbl1.b=tbl2.b); - -drop table t1; -drop table t0; - ---echo # ---echo # MDEV-7264: Assertion `0' failed in subselect_engine::get_identifier() on EXPLAIN JSON ---echo # -CREATE TABLE t1 (a INT); -INSERT INTO t1 VALUES (1),(2); - -CREATE TABLE t2 (b INT); -INSERT INTO t2 VALUES (3),(4); - -EXPLAIN FORMAT=JSON SELECT * FROM t1 WHERE a <> ALL ( SELECT b FROM t2 ); -DROP TABLE t1, t2; - ---echo # ---echo # MDEV-7927: Server crashes in in Time_and_counter_tracker::incr_loops ---echo # -CREATE TABLE t1 (i INT); -INSERT INTO t1 VALUES (1),(2); -EXPLAIN SELECT * FROM t1 WHERE 3 IN ( SELECT 4 UNION SELECT 5 ); -DROP TABLE t1; - - ---echo # ---echo # MDEV-7860: EXPLAIN FORMAT=JSON crashes for loose scan query ---echo # - -create table t2(a int); -insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); -create table t1 (a int, b int, c int, d int, key(a,b,c)); -insert into t1 select A.a, B.a, C.a, D.a from t2 A, t2 B, t2 C, t2 D; -explain select count(distinct b) from t1 group by a; -explain format=json select count(distinct b) from t1 group by a; ---source include/analyze-format.inc -analyze format=json select count(distinct b) from t1 group by a; -drop table t1,t2; - ---echo # ---echo # Try both variants of LooseScan (data/queries borrowed from group_min_max.test) ---echo # - -create table t1 ( - a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(248) default ' ' -); - -insert into t1 (a1, a2, b, c, d) values -('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), -('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), -('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), -('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), -('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), -('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), -('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), -('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), -('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), -('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), -('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), -('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), -('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), -('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), -('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), -('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'), -('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), -('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), -('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), -('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), -('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), -('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), -('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), -('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), -('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), -('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), -('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), -('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), -('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), -('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), -('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), -('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'); - -create index idx_t1_0 on t1 (a1); -create index idx_t1_1 on t1 (a1,a2,b,c); -create index idx_t1_2 on t1 (a1,a2,b); -analyze table t1; - -explain select count(distinct a1,a2,b) from t1 where (a2 >= 'b') and (b = 'a'); -explain select count(distinct a1,a2,b,c) from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121'); - -explain format=json select count(distinct a1,a2,b) from t1 where (a2 >= 'b') and (b = 'a'); -explain format=json select count(distinct a1,a2,b,c) from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121'); - -drop table t1; - ---echo # ---echo # MDEV-8786 Wrong result for SELECT FORMAT=JSON * FROM t1 WHERE a=_latin1 0xDF ---echo # -CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET latin1); -INSERT INTO t1 VALUES ('a'),('b'); -EXPLAIN FORMAT=JSON SELECT * FROM t1 WHERE a=_latin1 0xDF; -DROP TABLE t1; - ---echo # ---echo # MDEV-8785 Wrong results for EXPLAIN EXTENDED...WHERE NULLIF(latin1_col, _utf8'a' COLLATE utf8_bin) IS NOT NULL ---echo # -CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET latin1); -INSERT INTO t1 VALUES ('a'),('A'); -EXPLAIN FORMAT=JSON SELECT * FROM t1 WHERE NULLIF(a,_utf8'a' COLLATE utf8_bin); -DROP TABLE t1; - ---echo # ---echo # MDEV-7970: EXPLAIN FORMAT=JSON does not print HAVING ---echo # -create table t0(a int); -insert into t0 values (0),(1),(2),(3); -create table t1(a int); -insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C; -create table t2 ( - a int, - b int, - key (a) -); -insert into t2 select A.a*1000 + B.a, A.a*1000 + B.a from t0 A, t1 B; ---echo # normal HAVING -explain format=json select a, max(b) as TOP from t2 group by a having TOP > a; ---echo # HAVING is always TRUE (not printed) -explain format=json select a, max(b) as TOP from t2 group by a having 1<>2; ---echo # HAVING is always FALSE (intercepted by message) -explain format=json select a, max(b) as TOP from t2 group by a having 1=2; ---echo # HAVING is absent -explain format=json select a, max(b) as TOP from t2 group by a; -drop table t0, t1, t2; - ---echo # ---echo # MDEV-8829: Assertion `0' failed in Explain_table_access::tag_to_json ---echo # - ---echo # Check ET_CONST_ROW_NOT_FOUND -create table t1 (i int) engine=myisam; -explain -select * from t1; -explain format=json -select * from t1; -analyze format=json -select * from t1; -drop table t1; - ---echo # Check ET_IMPOSSIBLE_ON_CONDITION -create table t1 (a int); -create table t2 (pk int primary key); - -insert into t1 values (1),(2); -insert into t2 values (1),(2); - -explain -select * from t1 left join t2 on t2.pk > 10 and t2.pk < 0; -explain format=json -select * from t1 left join t2 on t2.pk > 10 and t2.pk < 0; ---source include/analyze-format.inc -analyze format=json -select * from t1 left join t2 on t2.pk > 10 and t2.pk < 0; - ---echo # Check ET_NOT_EXISTS: -explain -select * from t1 left join t2 on t2.pk=t1.a where t2.pk is null; -explain format=json -select * from t1 left join t2 on t2.pk=t1.a where t2.pk is null; ---source include/analyze-format.inc -analyze format=json -select * from t1 left join t2 on t2.pk=t1.a where t2.pk is null; - ---echo # Check ET_DISTINCT -explain -select distinct t1.a from t1 join t2 on t2.pk=t1.a; -explain format=json -select distinct t1.a from t1 join t2 on t2.pk=t1.a; ---source include/analyze-format.inc -analyze format=json -select distinct t1.a from t1 join t2 on t2.pk=t1.a; -drop table t1,t2; - ---echo # Check ET_USING_INDEX_CONDITION_BKA -create table t1(a int); -insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); - -create table t2(a int); -insert into t2 select A.a + B.a* 10 + C.a * 100 from t1 A, t1 B, t1 C; - -create table t3(a int, b int); -insert into t3 select a,a from t1; - -create table t4(a int, b int, c int, filler char(100), key (a,b)); -insert into t4 select a,a,a, 'filler-data' from t2; - -set @tmp_optimizer_switch=@@optimizer_switch; -set @tmp_join_cache_level=@@join_cache_level; -set optimizer_switch='mrr=on'; -set join_cache_level=6; -explain -select * from t3,t4 where t3.a=t4.a and (t4.b+1 <= t3.b+1); -explain format=json -select * from t3,t4 where t3.a=t4.a and (t4.b+1 <= t3.b+1); ---source include/analyze-format.inc -analyze format=json -select * from t3,t4 where t3.a=t4.a and (t4.b+1 <= t3.b+1); -set optimizer_switch=@tmp_optimizer_switch; -set join_cache_level=@tmp_join_cache_level; - -drop table t1,t2,t3,t4; - ---echo # ---echo # MDEV-9652: EXPLAIN FORMAT=JSON should show outer_ref_cond ---echo # -create table t0(a int); -insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); -create table t1 (a int, b int); -insert into t1 select a,a from t0; - -explain format=json -select a, (select max(a) from t1 where t0.a<5 and t1.b<t0.a) from t0; -drop table t0,t1; - ---echo # ---echo # MDEV-10844: EXPLAIN FORMAT=JSON doesn't show order direction for filesort ---echo # - -create table t1 (a int, b int); -insert into t1 values (1,2),(3,4),(2,3); -explain format=json select * from t1 order by a, b desc; -explain format=json select * from t1 order by a desc, b desc; -explain format=json select * from t1 order by a desc, b ; -drop table t1; - |