hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

enhance plan expiration, optimize index prune for small row count

Browse Source
This commit is contained in:
zs0
2021-11-11 19:49:35 +08:00
committed by LINxiansheng
parent f2f2aed95c
commit c84b7de59c
17 changed files with 488 additions and 259 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
unittest/sql/rewrite/result/test_transformer_plan_after_trans_aggr.result
View File

@ -2041,15 +2041,13 @@ Outputs & filters:
*************** Case 85 ***************
SQL: select max(c3) from t9 where c2 = 1 and c1 = 1;
=========================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-----------------------------------------
|0 |SCALAR GROUP BY| |1 |151 |
|1 | SUBPLAN SCAN |VIEW1|1 |150 |
|2 | LIMIT | |1 |150 |
|3 | TOP-N SORT | |1 |150 |
|4 | TABLE SCAN |t9 |1 |149 |
=========================================
======================================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
------------------------------------------------------
|0 |SCALAR GROUP BY| |1 |678 |
|1 | SUBPLAN SCAN |VIEW1 |1 |678 |
|2 | TABLE SCAN |t9(idx_t9,Reverse)|1 |677 |
======================================================
Outputs & filters:
-------------------------------------
@ -2057,10 +2055,9 @@ Outputs & filters:
group(nil), agg_func([T_FUN_MAX(VIEW1.c3)])
1 - output([VIEW1.c3]), filter(nil),
access([VIEW1.c3])
2 - output([t9.c3]), filter(nil), limit(1), offset(nil)
3 - output([t9.c3]), filter(nil), sort_keys([t9.c3, DESC]), topn(1)
4 - output([t9.c3]), filter([t9.c2 = ?], [t9.c1 = ?], [(T_OP_IS_NOT, t9.c3, NULL, 0)]),
access([t9.c2], [t9.c1], [t9.c3]), partitions(p0)
2 - output([t9.c3]), filter([t9.c1 = ?], [(T_OP_IS_NOT, t9.c3, NULL, 0)]),
access([t9.c1], [t9.c3]), partitions(p0),
limit(1), offset(nil)
*************** Case 86 ***************
SQL: select max(c3) from t9 where c2 != 1;