Scott Reynolds created CALCITE-5391:
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Summary: JoinOnUniqueToSemiJoinRule removes a Projections aliases
Key: CALCITE-5391
URL: https://issues.apache.org/jira/browse/CALCITE-5391
Project: Calcite
Issue Type: Bug
Affects Versions: 1.32.0
Reporter: Scott Reynolds
Assignee: Scott Reynolds
The new rule pushes a copy of the [original project without the alias
names|https://github.com/apache/calcite/pull/2848/files#r1026959819]
{code:java}
builder.project(project.getProjects());
{code}
This results in a new SQL plan without the name fields -- they become {{$fN}}
fields in different plans.
Small change is required to put the names from the {{RelDataType}} of the
{{Project}} similar to the other {{Semijoin}} rule.
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