walterddr opened a new issue, #11677:
URL: https://github.com/apache/pinot/issues/11677
several MV validator issues are found
---
exception is not thrown
---
```
explain plan for
select MAXMV(a.mv) from a join b on a.id = b.id limit 10
```
returns
```
Execution Plan
LogicalSort(fetch=[10])
PinotLogicalSortExchange(distribution=[hash], collation=[[]],
isSortOnSender=[false], isSortOnReceiver=[false])
LogicalAggregate(group=[{}], agg#0=[MAXMV($0)])
PinotLogicalExchange(distribution=[hash])
LogicalAggregate(group=[{}], agg#0=[MAXMV($1)])
LogicalJoin(condition=[=($0, $2)], joinType=[inner])
PinotLogicalExchange(distribution=[hash[0]])
LogicalProject(id=[$6], mv=[$7])
LogicalTableScan(table=[[a]])
PinotLogicalExchange(distribution=[hash[0]])
LogicalProject(id=[$6])
LogicalTableScan(table=[[b]])
```
but it should failed on MAXMV($1) aggregate b/c it is not supported
---
wrong exception is thrown NO.1
---
```
explain plan for
select MAX(arrayToMv(a.mv)) from a join b on a.id = b.id limit 10
```
seems to throw the exception:
```
Function 'ArrayToMv' is not supported in PROJECT Leaf Stage
org.apache.pinot.query.planner.validation.ArrayToMvValidationVisitor.visitProject(ArrayToMvValidationVisitor.java:99)
org.apache.pinot.query.planner.validation.ArrayToMvValidationVisitor.visitProject(ArrayToMvValidationVisitor.java:43)
org.apache.pinot.query.planner.plannode.ProjectNode.visit(ProjectNode.java:54)
org.apache.pinot.query.planner.validation.ArrayToMvValidationVisitor.lambda$visitMailboxSend$3(ArrayToMvValidationVisitor.java:72)
```
but it is not suppose to be after PROJECT pushdown:
```
Execution Plan
LogicalSort(fetch=[10])
PinotLogicalSortExchange(distribution=[hash], collation=[[]],
isSortOnSender=[false], isSortOnReceiver=[false])
LogicalAggregate(group=[{}], agg#0=[MAX($0)])
PinotLogicalExchange(distribution=[hash])
LogicalAggregate(group=[{}], agg#0=[MAX($1)])
LogicalJoin(condition=[=($0, $2)], joinType=[inner])
PinotLogicalExchange(distribution=[hash[0]])
LogicalProject(id=[$6], $f0=[ARRAYTOMV($7)])
LogicalTableScan(table=[[a]])
PinotLogicalExchange(distribution=[hash[0]])
LogicalProject(id=[$6])
LogicalTableScan(table=[[b]])
```
---
wrong exception is thrown NO.2
---
```
explain plan for
select /*+ joinOptions(join_strategy = 'dynamic_broadcast') */
MAX(arrayToMv(a.label_ids))
from github_2 a
where a.id IN (select id FROM github_events b)
```
generates the following plan
```
LogicalAggregate(group=[{}], agg#0=[MAX($0)])
PinotLogicalExchange(distribution=[hash])
LogicalAggregate(group=[{}], agg#0=[MAX($1)])
PinotLogicalExchange(distribution=[hash[0]])
LogicalJoin(condition=[=($0, $8)], joinType=[semi])
LogicalProject(id=[$6], $f0=[ARRAYTOMV($7)])
LogicalTableScan(table=[[a]])
PinotLogicalExchange(distribution=[broadcast],
relExchangeType=[PIPELINE_BREAKER])
LogicalTableScan(table=[[b]])
```
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