Krystal created DRILL-4540:
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Summary: Queries with UNION fails with data type mis-match for
limit 0
Key: DRILL-4540
URL: https://issues.apache.org/jira/browse/DRILL-4540
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Reporter: Krystal
Assignee: Sean Hsuan-Yi Chu
git.commit.id.abbrev=fb09973
The following queries returns different data types between with and without
limit 0:
SELECT c1 FROM `union_01.parquet` UNION SELECT c2 FROM `union_02.parquet`
limit 0: [INTEGER]
regular: [BIGINT]
SELECT c2 FROM `union_01.parquet` UNION SELECT c8 FROM `union_02.parquet`
limit 0: [BIGINT]
regular: [DOUBLE]
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