HIVE-24231: Enhance shared work optimizer to merge scans with filters on both sides #1553
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kgyrtkirk
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kgyrtkirk
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Oct 13, 2020
| null sort order: z | ||
| sort order: + | ||
| Map-reduce partition columns: _col0 (type: string) | ||
| Filter Operator |
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these 2 filter operators will be merged by the 'downstream merge' patch
jcamachor
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Oct 20, 2020
| /** | ||
| * Fuses two filtered table scans into a single one. | ||
| * | ||
| * Dynamic filter subtree is kept on both sides - but the table is onlt scanned once. |
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added fix to HIVE-24241
szehon-ho
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Nov 25, 2020
… on both sides (apache#1553) (Zoltan Haindrich reviewed by Jesus Camacho Rodriguez)
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