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update rewrite rules

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* adjust re est cost for nestloop semi/anti join

* add threshold for cost base transform
This commit is contained in:
zs
2021-06-16 11:36:24 +08:00
committed by MizuhaHimuraki
parent cbeee6568e
commit 03001c1fe3
6 changed files with 70 additions and 84 deletions
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52
unittest/sql/optimizer/test_optimizer_default_stat.result
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@ -9476,50 +9476,48 @@ Outputs & filters:
SQL: select * from t4,t4 t5 where t4.c1 in (select t7.c1 from t7,t8);
=================================================================
|ID|OPERATOR |NAME |EST. ROWS |COST |
-----------------------------------------------------------------
|0 |NESTED-LOOP JOIN CARTESIAN | |15504908587|11299759339|
|1 | NESTED-LOOP JOIN | |155050 |3869186 |
|2 | TABLE SCAN |t4 |100000 |64066 |
|3 | SUBPLAN SCAN |VIEW2|1 |38 |
|4 | LIMIT | |1 |38 |
|5 | NESTED-LOOP JOIN CARTESIAN| |1 |37 |
|6 | TABLE GET |t7 |1 |36 |
|7 | TABLE SCAN |t8 |100000 |59654 |
|8 | MATERIAL | |100000 |119192 |
|9 | TABLE SCAN |t5 |100000 |64066 |
=================================================================
===============================================================
|ID|OPERATOR |NAME |EST. ROWS |COST |
---------------------------------------------------------------
|0 |NESTED-LOOP JOIN CARTESIAN | |9900000000|7216269494|
|1 | TABLE SCAN |t5 |100000 |64066 |
|2 | MATERIAL | |99000 |3771257 |
|3 | NESTED-LOOP SEMI JOIN | |99000 |3716682 |
|4 | TABLE SCAN |t4 |100000 |64066 |
|5 | SUBPLAN SCAN |VIEW1|1 |36 |
|6 | NESTED-LOOP JOIN CARTESIAN| |1 |36 |
|7 | TABLE GET |t7 |1 |36 |
|8 | TABLE SCAN |t8 |100000 |59654 |
===============================================================
Outputs & filters:
-------------------------------------
0 - output([t4.c1], [t4.c2], [t4.c3], [t5.c1], [t5.c2], [t5.c3]), filter(nil),
conds(nil), nl_params_(nil), batch_join=false
1 - output([t4.c1], [t4.c2], [t4.c3]), filter(nil),
1 - output([t5.c1], [t5.c2], [t5.c3]), filter(nil),
access([t5.c1], [t5.c2], [t5.c3]), partitions(p0),
is_index_back=false,
range_key([t5.c1], [t5.c2]), range(MIN,MIN ; MAX,MAX)always true
2 - output([t4.c1], [t4.c2], [t4.c3]), filter(nil)
3 - output([t4.c1], [t4.c2], [t4.c3]), filter(nil),
conds(nil), nl_params_([t4.c1]), batch_join=false
2 - output([t4.c1], [t4.c2], [t4.c3]), filter(nil),
4 - output([t4.c1], [t4.c2], [t4.c3]), filter(nil),
access([t4.c1], [t4.c2], [t4.c3]), partitions(p0),
is_index_back=false,
range_key([t4.c1], [t4.c2]), range(MIN,MIN ; MAX,MAX)always true
3 - output([1]), filter(nil),
access([VIEW2.VIEW1.c1])
4 - output([t7.c1]), filter(nil), limit(1), offset(nil)
5 - output([t7.c1]), filter(nil),
conds(nil), nl_params_(nil), batch_join=true
5 - output([1]), filter(nil),
access([VIEW1.c1])
6 - output([t7.c1]), filter(nil),
conds(nil), nl_params_(nil), batch_join=true
7 - output([t7.c1]), filter(nil),
access([t7.c1]), partitions(p0),
is_index_back=false,
range_key([t7.c1]), range(MIN ; MAX)always true,
range_cond([? = t7.c1])
7 - output([1]), filter(nil),
8 - output([1]), filter(nil),
access([t8.c1]), partitions(p0),
is_index_back=false,
range_key([t8.c1]), range(MIN ; MAX)always true
8 - output([t5.c1], [t5.c2], [t5.c3]), filter(nil)
9 - output([t5.c1], [t5.c2], [t5.c3]), filter(nil),
access([t5.c1], [t5.c2], [t5.c3]), partitions(p0),
is_index_back=false,
range_key([t5.c1], [t5.c2]), range(MIN,MIN ; MAX,MAX)always true
*************** Case 273(end) **************