Justin Swett created CALCITE-4276:
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Summary: Rewriting for materialized view will project wrong input
Key: CALCITE-4276
URL: https://issues.apache.org/jira/browse/CALCITE-4276
Project: Calcite
Issue Type: Bug
Components: core
Reporter: Justin Swett
Attachments: TemporalMaterializationWithJoinsTest.java
When MaterializedViewOnlyAggregateRule does its rewrite it will sometimes
produce a project above the materialized view that references the incorrect
input. For example,
Materialization Rel:
{noformat}
LogicalAggregate(group=[{0}], ORDER_ITEMS.ORDER_SIZE=[COUNT()],
ORDER_ITEMS.ORDER_SUM=[$SUM0($1)])
LogicalProject(ORDER_ID=[$1], AMOUNT=[$2])
2(table=[[orders_items]]){noformat}
Query Rel:
{noformat}
LogicalAggregate(group=[{0}], agg#0=[COUNT()])
LogicalProject($f0=[FLOOR($1, FLAG(YEAR))])
LogicalJoin(condition=[=($0, $1)], joinType=[inner])
LogicalProject(ORDER_ID=[$1])
2(table=[[orders_items]])
LogicalProject(ID=[$0], CREATED_AT=[$4])
4(table=[[orders]]){noformat}
Will Produce the following rel after MaterializedViewOnlyAggregateRule fires:
{noformat}
LogicalAggregate(group=[{8}], agg#0=[$SUM0($1)])
LogicalProject(ORDER_ID=[$0], ORDER_ITEMS.ORDER_SIZE=[$1],
ORDER_ITEMS.ORDER_SUM=[$2], ID=[$3], USER_ID=[$4], ORDER_AMOUNT=[$5],
STATUS=[$6], CREATED_AT=[$7], $f8=[FLOOR($0, FLAG(YEAR))])
LogicalFilter(condition=[=($0, $3)])
LogicalJoin(condition=[true], joinType=[inner])
6(table=[[testing_mv]])
4(table=[[orders]]){noformat}
Notice the "*$f8=[FLOOR($0, FLAG(YEAR))*" the $0 is pointing to the test_mv
order_id field, so perhaps something with the filter?
The attached test case reproduces the issue.
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