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[CP] 修复normal join的计划稳定性问题

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This commit is contained in:
zzg19950727
2024-07-01 09:46:29 +00:00
committed by ob-robot
parent b6efa3a2ca
commit cc12fa9bb8
5 changed files with 518 additions and 533 deletions
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58
tools/deploy/mysql_test/test_suite/static_engine/r/mysql/nested_loop_join.result
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@ -321,27 +321,26 @@ select /*+use_nl(t1, t2)*/ * from t1 where exists (select 1 from t2 where t1.c1
EXPLAIN select /*+use_nl(t1, t2)*/ * from t1 where exists (select 1 from t2 where t1.c1 = t2.c1);
Query Plan
===================================================
|ID|OPERATOR |NAME|EST.ROWS|EST.TIME(us)|
---------------------------------------------------
|0 |NESTED-LOOP JOIN | |4 |3 |
|1 |├─TABLE FULL SCAN |t2 |4 |3 |
|2 |└─MATERIAL | |5 |3 |
|3 | └─TABLE FULL SCAN|t1 |5 |3 |
===================================================
=======================================================
|ID|OPERATOR |NAME|EST.ROWS|EST.TIME(us)|
-------------------------------------------------------
|0 |NESTED-LOOP JOIN | |4 |96 |
|1 |├─TABLE FULL SCAN |t1 |5 |3 |
|2 |└─DISTRIBUTED TABLE GET|t2 |1 |18 |
=======================================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2]), filter(nil), rowset=16
conds([t1.c1 = t2.c1]), nl_params_(nil), use_batch=false
1 - output([t2.c1]), filter(nil), rowset=16
access([t2.c1]), partitions(p0)
is_index_back=false, is_global_index=false,
range_key([t2.c1]), range(MIN ; MAX)always true
2 - output([t1.c1], [t1.c2]), filter(nil), rowset=16
3 - output([t1.c2], [t1.c1]), filter(nil), rowset=16
conds(nil), nl_params_([t1.c1(:0)]), use_batch=false
1 - output([t1.c2], [t1.c1]), filter(nil), rowset=16
access([t1.c2], [t1.c1]), partitions(p0)
is_index_back=false, is_global_index=false,
range_key([t1.c2]), range(MIN ; MAX)always true
2 - output(nil), filter(nil), rowset=16
access(nil), partitions(p0)
is_index_back=false, is_global_index=false,
range_key([t2.c1]), range(MIN ; MAX),
range_cond([:0 = t2.c1])
select /*+use_nl(t1, t2)*/ * from t1 where exists (select 1 from t2 where t1.c1 = t2.c1);
+------+----+
| c1 | c2 |
@ -720,27 +719,26 @@ select /*+use_nl(t1, t2)*/ * from t1 where exists (select 1 from t2 where t1.c1
EXPLAIN select /*+use_nl(t1, t2)*/ * from t1 where exists (select 1 from t2 where t1.c1 = t2.c1);
Query Plan
===================================================
|ID|OPERATOR |NAME|EST.ROWS|EST.TIME(us)|
---------------------------------------------------
|0 |NESTED-LOOP JOIN | |4 |3 |
|1 |├─TABLE FULL SCAN |t2 |4 |3 |
|2 |└─MATERIAL | |5 |3 |
|3 | └─TABLE FULL SCAN|t1 |5 |3 |
===================================================
=======================================================
|ID|OPERATOR |NAME|EST.ROWS|EST.TIME(us)|
-------------------------------------------------------
|0 |NESTED-LOOP JOIN | |4 |83 |
|1 |├─TABLE FULL SCAN |t1 |5 |3 |
|2 |└─DISTRIBUTED TABLE GET|t2 |1 |16 |
=======================================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2]), filter(nil), rowset=16
conds([t1.c1 = t2.c1]), nl_params_(nil), use_batch=false
1 - output([t2.c1]), filter(nil), rowset=16
access([t2.c1]), partitions(p0)
is_index_back=false, is_global_index=false,
range_key([t2.c1]), range(MIN ; MAX)always true
2 - output([t1.c1], [t1.c2]), filter(nil), rowset=16
3 - output([t1.c2], [t1.c1]), filter(nil), rowset=16
conds(nil), nl_params_([t1.c1(:0)]), use_batch=true
1 - output([t1.c2], [t1.c1]), filter(nil), rowset=16
access([t1.c2], [t1.c1]), partitions(p0)
is_index_back=false, is_global_index=false,
range_key([t1.c2]), range(MIN ; MAX)always true
2 - output(nil), filter(nil), rowset=16
access([GROUP_ID]), partitions(p0)
is_index_back=false, is_global_index=false,
range_key([t2.c1]), range(MIN ; MAX),
range_cond([:0 = t2.c1])
select /*+use_nl(t1, t2)*/ * from t1 where exists (select 1 from t2 where t1.c1 = t2.c1);
+------+----+
| c1 | c2 |