impala

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Files

Shant Hovsepian 6d87fe090c Improve Hll estimate for small cardinalities.

Based on Google's HyperLogLog++ paper. Uses a bias correcting
interpolation as a sub algorithm for Hll estimates within a specific
range.

Change-Id: If4fe692b4308f6a57aea6167e9bc00db11eaaab9
Reviewed-on: http://gerrit.cloudera.org:8080/415
Tested-by: Internal Jenkins
Reviewed-by: Henry Robinson <henry@cloudera.com>

2015-07-16 19:38:17 +00:00

functional-planner

Improve Hll estimate for small cardinalities.

2015-07-16 19:38:17 +00:00

functional-query

Improve Hll estimate for small cardinalities.

2015-07-16 19:38:17 +00:00

hive-benchmark

Refactor testing framework to generate Avro tables.

2014-01-08 10:48:45 -08:00

targeted-perf

Add targted-perf query that makes local expr allocations

2014-10-07 15:48:32 -07:00

targeted-stress

BufferedBlockMgr: bug fixes for stress.

2014-10-06 15:09:13 -07:00

tpcds

Nested types: BE changes for Parquet struct support

2015-02-26 00:19:25 +00:00

tpcds-insert

[CDH5] Modified TPCDS schema and queries to match Impala TPCDS kit

2014-08-08 02:20:40 -07:00

tpch

Enable isilon end to end tests for Impala.

2015-05-27 22:25:12 +00:00

tpch_nested

Fixes to Nested TPCH workload

2015-07-08 02:54:20 +00:00

README

Move functional data loading to new framework + initial changes for workload directory structure

2014-01-08 10:44:18 -08:00

README

This directory contains Impala test workloads. The directory layout for the workloads should follow:

workloads/
   <data set name>/<data set name>_dimensions.csv  <- The test dimension file
   <data set name>/<data set name>_core.csv  <- A test vector file
   <data set name>/<data set name>_pairwise.csv
   <data set name>/<data set name>_exhaustive.csv
   <data set name>/queries/<query test>.test <- The queries for this workload