seawinde opened a new pull request, #55066:
URL: https://github.com/apache/doris/pull/55066
### What problem does this PR solve?
Support window function rewrite when materialized view contains window
function
Such as mv def is as following:
```sql
CREATE MATERIALIZED VIEW mv1
BUILD IMMEDIATE REFRESH COMPLETE ON MANUAL
DISTRIBUTED BY RANDOM BUCKETS 2
PROPERTIES ('replication_num' = '1')
AS
select *
from (
select
o_orderkey,
FIRST_VALUE(o_custkey) OVER (
PARTITION BY o_orderdate
ORDER BY o_totalprice NULLS LAST
RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
) AS first_value,
RANK() OVER (
PARTITION BY o_orderdate, o_orderstatus
ORDER BY o_totalprice NULLS LAST
RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
) AS rank_value,
LAG(l_extendedprice, 1, 0) over (partition by o_orderdate,
l_shipdate order by l_quantity) AS lag_value
from
lineitem2
left join orders2 on l_orderkey = o_orderkey and l_shipdate =
o_orderdate
) t
where o_orderkey > 1;
```
if query as following, this can use mv to represent query
```sql
select *
from (
select
o_orderkey,
FIRST_VALUE(o_custkey) OVER (
PARTITION BY o_orderdate
ORDER BY o_totalprice NULLS LAST
RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
) AS first_value,
RANK() OVER (
PARTITION BY o_orderdate, o_orderstatus
ORDER BY o_totalprice NULLS LAST
RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
) AS rank_value,
LAG(l_extendedprice, 1, 0) over (partition by o_orderdate,
l_shipdate order by l_quantity) AS lag_value
from
lineitem2
left join orders2 on l_orderkey = o_orderkey and l_shipdate =
o_orderdate
) t
where o_orderkey > 2;
```
explain result is as follwing:
```text
+----------------------------------------------------------------------------------------+
| Explain String(Nereids Planner)
|
+----------------------------------------------------------------------------------------+
| PLAN FRAGMENT 0
|
| OUTPUT EXPRS:
|
| o_orderkey[#4]
|
| first_value[#5]
|
| rank_value[#6]
|
| lag_value[#7]
|
| PARTITION: RANDOM
|
|
|
| HAS_COLO_PLAN_NODE: false
|
|
|
| VRESULT SINK
|
| MYSQL_PROTOCAL
|
|
|
| 0:VOlapScanNode(445)
|
| TABLE: regression_test_nereids_rules_p0_mv_window.mv1(mv1),
PREAGGREGATION: ON |
| PREDICATES: (o_orderkey[#0] > 2)
|
| partitions=1/1 (mv1)
|
| tablets=2/2, tabletList=1755678381149,1755678381151
|
| cardinality=1, avgRowSize=0.0, numNodes=1
|
| pushAggOp=NONE
|
| final projections: o_orderkey[#0], first_value[#1], rank_value[#2],
lag_value[#3] |
| final project output tuple id: 1
|
|
|
|
|
| ========== MATERIALIZATIONS ==========
|
|
|
| MaterializedView
|
| MaterializedViewRewriteSuccessAndChose:
|
| internal.regression_test_nereids_rules_p0_mv_window.mv1 chose
|
|
|
| MaterializedViewRewriteSuccessButNotChose:
|
|
|
| MaterializedViewRewriteFail:
|
|
|
|
|
| ========== STATISTICS ==========
|
| planed with unknown column statistics
|
+----------------------------------------------------------------------------------------+
```
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [x] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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