[Impala-ASF-CR] IMPALA-11205: Implement Statistical functions: CORR(), COVAR SAMP() and COVAR POP()

["Anonymous Coward (Code Review)" <ge...@cloudera.org>]

pranav.lodha@cloudera.com has uploaded a new patch set (#27). ( http://gerrit.cloudera.org:8080/18413 )

Change subject: IMPALA-11205: Implement Statistical functions: CORR(), COVAR_SAMP()  and COVAR_POP()
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IMPALA-11205: Implement Statistical functions: CORR(), COVAR_SAMP()
 and COVAR_POP()

CORR() function takes two numeric type columns as arguments and returns
the Pearson's correlation coefficient between them.
COVAR_SAMP() function takes two numeric type columns and returns sample
 covariance between them.
COVAR_POP() function takes two numeric type columns and returns
 population covariance between them.
These UDAFs are tested with a few query tests written in aggregation.test.

Change-Id: I32ad627c953ba24d9cde2d5549bdd0d27a9c0d06
---
M be/src/exprs/aggregate-functions-ir.cc
M be/src/exprs/aggregate-functions.h
M fe/src/main/java/org/apache/impala/catalog/BuiltinsDb.java
M testdata/workloads/functional-query/queries/QueryTest/aggregation.test
4 files changed, 1,074 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/13/18413/27
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I32ad627c953ba24d9cde2d5549bdd0d27a9c0d06
Gerrit-Change-Number: 18413
Gerrit-PatchSet: 27
Gerrit-Owner: Anonymous Coward <pr...@cloudera.com>
Gerrit-Reviewer: Anonymous Coward <pr...@cloudera.com>
Gerrit-Reviewer: Gergely Fürnstáhl <gf...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <im...@cloudera.com>
Gerrit-Reviewer: Jian Zhang <zj...@gmail.com>
Gerrit-Reviewer: Kurt Deschler <kd...@cloudera.com>
Gerrit-Reviewer: Quanlong Huang <hu...@gmail.com>