Details
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Improvement
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Status: Closed
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Major
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Resolution: Later
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None
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None
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None
Description
This is an umbrella ticket for improving performance for joining multiple dimension tables.
Attachments
Issue Links
- is related to
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SPARK-2211 Join Optimization
- Closed
- links to
1.
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Avoid rebuilding hash tables on each partition | Resolved | Reynold Xin | |
2.
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MultiWayBroadcastInnerHashJoin | Closed | Unassigned | |
3.
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Cache broadcasted tables and reuse them across queries | Closed | Unassigned | |
4.
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Specialize join for tables with unique integer keys | Closed | Unassigned | |
5.
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Dimension table broadcast shouldn't be eager | Closed | Shixiong Zhu |