HIVE-25583: Support parallel load for HastTables - Interfaces #2999
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@ramesh0201 can you please take a look on this one? |
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Hey @abstractdog do you mind taking a look on this one? |
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@pgaref Looks good to me. +1 |
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* Introducing VectorMapJoinFastHashTableContainerBase class that implements VectorMapJoinHashTable * Each VectorMapJoinFastStringHashMapContainer is a singleton that contains an array of HashTables (1 or more) * VectorMapJoinFastTableContainer now initializes VectorMapJoinFastHashTableContainers instead of HTs directly Change-Id: I14f71dab3859b75d822914966151548793998c39
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…#2999) (Panagiotis Garefalakis reviewed by Ramesh Kumar) * Introducing VectorMapJoinFastHashTableContainerBase class that implements VectorMapJoinHashTable * Each VectorMapJoinFastStringHashMapContainer is a singleton that contains an array of HashTables (1 or more) * VectorMapJoinFastTableContainer now initializes VectorMapJoinFastHashTableContainers instead of HTs directly Change-Id: I14f71dab3859b75d822914966151548793998c39
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…#2999) (Panagiotis Garefalakis reviewed by Ramesh Kumar) * Introducing VectorMapJoinFastHashTableContainerBase class that implements VectorMapJoinHashTable * Each VectorMapJoinFastStringHashMapContainer is a singleton that contains an array of HashTables (1 or more) * VectorMapJoinFastTableContainer now initializes VectorMapJoinFastHashTableContainers instead of HTs directly Change-Id: I14f71dab3859b75d822914966151548793998c39
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What changes were proposed in this pull request?
Support parallel load for HastTables - Interfaces
Why are the changes needed?
Changes needed to introduced parallel HT loading used by HashTableLoader for Tez to constructs the hashtable from records read from a broadcast edge
Does this PR introduce any user-facing change?
No
How was this patch tested?
Existing tests for correctness while HIVE-25146 aims to test performance