godfrey he created FLINK-11966:
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Summary: Add support for generating optimized logical plan for
simple query(project, filter, values and union all)
Key: FLINK-11966
URL: https://issues.apache.org/jira/browse/FLINK-11966
Project: Flink
Issue Type: New Feature
Components: API / Table SQL
Reporter: godfrey he
Assignee: godfrey he
Add support for generating optimized logical plan for simple query,
1. project and filter: SELECT a, b + 1 FROM MyTable WHERE b > 2
2. values: SELECT * FROM (VALUES (1, 2, 3)) AS T(a, b, c)
3. union all: SELECT a, c FROM (SELECT a, c FROM MyTable1 UNION ALL SELECT a, c
FROM MyTable2)
{{Union}} depends on {{Aggregate}} to eliminate duplicates, so it will be
introduced after {{Aggregate}} spported.
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