GitHub user mbasmanova opened a pull request:
https://github.com/apache/spark/pull/18421
[SPARK-21213][SQL] Support collecting partition-level statistics: rowâ¦
â¦Count and sizeInBytes
## What changes were proposed in this pull request?
Added support for ANALYZE TABLE table PARTITION (key=value,..) COMPUTE
STATISTICS [NOSCAN] SQL command to calculate total number of rows and size in
bytes for the specified partition. Calculated statistics are stores in Hive
Metastore as user-defined properties attached to the partition object. Property
names are the same as the ones used to store table-level row count and size in
bytes. Specifically, spark.sql.statistics.totalSize and
spark.sql.statistics.numRows.
## How was this patch tested?
Added tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mbasmanova/spark mbasmanova-analyze-partition
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18421.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #18421
----
commit e18f144a2c6b318a285fbb184bb5c78408f06039
Author: Masha Basmanova <mbasman...@fb.com>
Date: 2017-06-12T20:36:28Z
[SPARK-21213][SQL] Support collecting partition-level statistics: rowCount
and sizeInBytes
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