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From "Jacques Nadeau" <jacques.dr...@gmail.com>
Subject Review Request 31822: DRILL-2402: Updating hash functions so that combination hashing uses a chained approach rather than xor
Date Sat, 07 Mar 2015 01:49:00 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31822/
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Review request for drill, Aman Sinha and Mehant Baid.


Repository: drill-git


Description
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Add hash64(val) and hash64(val, seed) and use for all distribution and hash table purposes.


Diffs
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  exec/java-exec/src/main/java/org/apache/drill/exec/expr/ExpressionTreeMaterializer.java
3565bf4 
  exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/Hash64Functions.java PRE-CREATION

  exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/Hash64FunctionsWithSeed.java
PRE-CREATION 
  exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/HashFunctions.java 9658fdb

  exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/XXHash.java 8ad9611 
  exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/common/ChainedHashTable.java
8f921f7 
  exec/java-exec/src/main/java/org/apache/drill/exec/planner/physical/PrelUtil.java 1adc54f


Diff: https://reviews.apache.org/r/31822/diff/


Testing
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Thanks,

Jacques Nadeau


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