GitHub user gparai opened a pull request:
https://github.com/apache/drill/pull/729
Drill 1328 r4
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gparai/drill Drill-1328-r4
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/729.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 #729
----
commit 7ed459d340d99ba1e4a8df6b66465a272ce51f02
Author: Cliff Buchanan <[email protected]>
Date: 2014-08-21T21:59:53Z
DRILL-1328: Support table statistics
PRE: Add "append" concept to directory write.
* This is so stats can be stored in [table].stats.drill and be appended to
be writing a new file into the directory.
FUNCS: Statistics functions as UDFs:
Currently using FieldReader to ensure consistent output type so that
Unpivot doesn't get confused. All stats columns should be Nullable, so that
stats functions can return NULL when N/A.
* custom versions of "count" that always return BigInt
* HyperLogLog based NDV that returns BigInt that works only on VarChars
* HyperLogLog with binary output that only works on VarChars
OPS: Updated protobufs for new ops
OPS: Implemented StatisticsAggregate
OPS: Implemented StatisticsUnpivot
ANALYZE: AnalyzeTable functionality
* JavaCC syntax more-or-less copied from LucidDB.
* (Basic) AnalyzePrule: DrillAnalyzeRel -> UnpivotPrel and StatsAggPrel
ANALYZE: Add getMetadataTable() to AbstractSchema
USAGE: Change field access in QueryWrapper
USAGE: Add getDrillTable() to DrillScanRelBase and ScanPrel
* since ScanPrel does not inherit from DrillScanRelBase, this requires
adding a DrillTable to the constructor
* This is done so that a custom ReflectiveRelMetadataProvider can access
the DrillTable associated with Logical/Physical scans.
USAGE: Attach DrillTableMetadata to DrillTable.
* DrillTableMetadata represents the data scanned from a corresponding
".stats.drill" table
* In order to avoid doing query execution right after the ".stats.drill"
table is found, metadata is not actually collected until the
MaterializationVisitor is used.
** Currently, the metadata source must be a string (so that a SQL query can
be created). Doing this with a table is probably more complicated.
** Query is set up to extract only the most recent statistics results for
each column.
USAGE: Configure DrillJoinRelBase to use NDV metadata when available.
USAGE: attach metadata to table
USAGE: implement optiq provider
commit 9771a732ad9d266937c5f5a263cca2e09ee6f4f6
Author: Gautam Parai <[email protected]>
Date: 2014-08-21T21:59:53Z
DRILL-1328: Support table statistics
PRE: Add "append" concept to directory write.
* This is so stats can be stored in [table].stats.drill and be appended to
be writing a new file into the directory.
FUNCS: Statistics functions as UDFs:
Currently using FieldReader to ensure consistent output type so that
Unpivot doesn't get confused. All stats columns should be Nullable, so that
stats functions can return NULL when N/A.
* custom versions of "count" that always return BigInt
* HyperLogLog based NDV that returns BigInt that works only on VarChars
* HyperLogLog with binary output that only works on VarChars
OPS: Updated protobufs for new ops
OPS: Implemented StatisticsAggregate
OPS: Implemented StatisticsUnpivot
ANALYZE: AnalyzeTable functionality
* JavaCC syntax more-or-less copied from LucidDB.
* (Basic) AnalyzePrule: DrillAnalyzeRel -> UnpivotPrel and StatsAggPrel
ANALYZE: Add getMetadataTable() to AbstractSchema
USAGE: Change field access in QueryWrapper
USAGE: Add getDrillTable() to DrillScanRelBase and ScanPrel
* since ScanPrel does not inherit from DrillScanRelBase, this requires
adding a DrillTable to the constructor
* This is done so that a custom ReflectiveRelMetadataProvider can access
the DrillTable associated with Logical/Physical scans.
USAGE: Attach DrillTableMetadata to DrillTable.
* DrillTableMetadata represents the data scanned from a corresponding
".stats.drill" table
* In order to avoid doing query execution right after the ".stats.drill"
table is found, metadata is not actually collected until the
MaterializationVisitor is used.
** Currently, the metadata source must be a string (so that a SQL query can
be created). Doing this with a table is probably more complicated.
** Query is set up to extract only the most recent statistics results for
each column.
USAGE: Configure DrillJoinRelBase to use NDV metadata when available.
USAGE: attach metadata to table
USAGE: implement optiq provider
commit 2bd531a3885415496c0c5f5ea445aedbd7aad07c
Author: Gautam Parai <[email protected]>
Date: 2016-11-24T03:30:18Z
Parallel statistics computation
commit 84189392719325e25a87c65ac7fb46e38b503882
Author: Aman Sinha <[email protected]>
Date: 2016-11-30T01:53:52Z
Fix distribution traits for 2 phase analyze. Add statistics_merge operator
to CoreOperatorType and fix enum values.
commit 32123eeeeb9649c37ba90bb06b9ecabd62323b67
Author: Gautam Parai <[email protected]>
Date: 2016-12-02T21:23:34Z
Add support for all stats
commit 218ab2d7c9ffe7263a9f458d0fa6025824b62e97
Author: Gautam Parai <[email protected]>
Date: 2016-12-09T22:48:04Z
Old costing without statistics and new costing with statistics
commit 2f4ad909326b9020d87cfa70169d8d403aaa005c
Author: Gautam Parai <[email protected]>
Date: 2017-01-05T23:48:07Z
Fix Calcite AnalyzeSimpleEquiJoin
commit a92ddacfd84b378eb375f207990a8dbebba705cd
Author: Gautam Parai <[email protected]>
Date: 2017-01-06T21:40:23Z
Fix NDV overestimate when groupKey relies on one side of the join
commit af94db7a4e3d91d276be0202406dbc1cd748345e
Author: Gautam Parai <[email protected]>
Date: 2017-01-25T00:13:35Z
Code cleanup
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