HIVE-24304: Query containing UNION fails with OOM #1600
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jcamachor
approved these changes
Oct 23, 2020
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| public Set<RexNode> getExpressionLineage(HiveUnion rel, RelMetadataQuery mq, | ||
| RexNode outputExpression) { | ||
| return null; |
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Can we add a comment based on the JIRA discussion on why we are returning null for Union operator (it will help us recall in case we revisit this code in the future)?
kgyrtkirk
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