Commit Graph

881 Commits

Author SHA1 Message Date
Clint Wylie fe1d8c206a
bump version to 0.23.0-SNAPSHOT (#11670) 2021-09-08 15:56:04 -07:00
Agustin Gonzalez 9efa6cc9c8
Make persists concurrent with adding rows in batch ingestion (#11536)
* Make persists concurrent with ingestion

* Remove semaphore but keep concurrent persists (with add) and add push in the backround as well

* Go back to documented default persists (zero)

* Move to debug

* Remove unnecessary Atomics

* Comments on synchronization (or not) for sinks & sinkMetadata

* Some cleanup for unit tests but they still need further work

* Shutdown & wait for persists and push on close

* Provide support for three existing batch appenderators using batchProcessingMode flag

* Fix reference to wrong appenderator

* Fix doc typos

* Add BatchAppenderators class test coverage

* Add log message to batchProcessingMode final value, fix typo in enum name

* Another typo and minor fix to log message

* LEGACY->OPEN_SEGMENTS, Edit docs

* Minor update legacy->open segments log message

* More code comments, mostly small adjustments to naming etc

* fix spelling

* Exclude BtachAppenderators from Jacoco since it is fully tested but Jacoco still refuses to ack coverage

* Coverage for Appenderators & BatchAppenderators, name change of a method that was still using "legacy" rather than "openSegments"

Co-authored-by: Clint Wylie <cjwylie@gmail.com>
2021-09-08 13:31:52 -07:00
Jihoon Son 7e90d00cc0
Configurable maxStreamLength for doubles sketches (#11574)
* Configurable maxStreamLength for doubles sketches

* fix equals/hashcode and it test failure

* fix test

* fix it test

* benchmark

* doc

* grouping key

* fix comment

* dependency check

* Update docs/development/extensions-core/datasketches-quantiles.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

Co-authored-by: Charles Smith <techdocsmith@gmail.com>
2021-08-31 14:56:37 -07:00
zhangyue19921010 6d14ea2d14
Dynamic auto scale Kinesis-Stream ingest tasks (#10985)
* ready to test

* revert misc.xml

* document kinesis md

* Update docs/development/extensions-core/kafka-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update kafka-ingestion.md

remove leading `

* Update kinesis-ingestion.md

add missing `

Co-authored-by: yuezhang <yuezhang@freewheel.tv>
Co-authored-by: Charles Smith <techdocsmith@gmail.com>
2021-08-30 15:44:29 -07:00
Jihoon Son 2a658acad4
Put sleep in an extension (#11632)
* Put sleep in an extension

* dependency
2021-08-25 01:27:45 -07:00
Maytas Monsereenusorn b36242b404
Fix bug in Variance Buffer Aggregator resulting in intermittent NaN when druid.generic.useDefaultValueForNull=false (#11617)
* Fix bug in Variance Aggregator resulting in intermittent NaN when druid.generic.useDefaultValueForNull=false

* fix checkstyle

* address comments
2021-08-20 09:13:51 -07:00
Clint Wylie ec334a641b
MySQL extension with MariaDB connector docs (#11608)
* add docs for mariadb support via mysql extensions

* add logging so you know what druid knows

* homogenize

* spelling

* missed a couple
2021-08-19 01:52:26 -07:00
dependabot[bot] 776ddf76f4
Bump parquet.version from 1.11.1 to 1.12.0 (#11346)
* Bump parquet.version from 1.11.1 to 1.12.0

Bumps `parquet.version` from 1.11.1 to 1.12.0.

Updates `parquet-column` from 1.11.1 to 1.12.0
- [Release notes](https://github.com/apache/parquet-mr/releases)
- [Changelog](https://github.com/apache/parquet-mr/blob/master/CHANGES.md)
- [Commits](https://github.com/apache/parquet-mr/compare/apache-parquet-1.11.1...apache-parquet-1.12.0)

Updates `parquet-avro` from 1.11.1 to 1.12.0
- [Release notes](https://github.com/apache/parquet-mr/releases)
- [Changelog](https://github.com/apache/parquet-mr/blob/master/CHANGES.md)
- [Commits](https://github.com/apache/parquet-mr/compare/apache-parquet-1.11.1...apache-parquet-1.12.0)

Updates `parquet-hadoop` from 1.11.1 to 1.12.0
- [Release notes](https://github.com/apache/parquet-mr/releases)
- [Changelog](https://github.com/apache/parquet-mr/blob/master/CHANGES.md)
- [Commits](https://github.com/apache/parquet-mr/compare/apache-parquet-1.11.1...apache-parquet-1.12.0)

---
updated-dependencies:
- dependency-name: org.apache.parquet:parquet-column
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.parquet:parquet-avro
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.parquet:parquet-hadoop
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update license

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Suneet Saldanha <suneet@apache.org>
2021-08-13 19:17:57 -07:00
Parag Jain c7b46671b3
option to use deep storage for storing shuffle data (#11507)
Fixes #11297.
Description

Description and design in the proposal #11297
Key changed/added classes in this PR

    *DataSegmentPusher
    *ShuffleClient
    *PartitionStat
    *PartitionLocation
    *IntermediaryDataManager
2021-08-13 16:40:25 -04:00
Kashif Faraz aaf0aaad8f
Enable routing of SQL queries at Router (#11566)
This PR adds a new property druid.router.sql.enable which allows the
Router to handle SQL queries when set to true.

This change does not affect Avatica JDBC requests and they are still routed
by hashing the Connection ID.

To allow parsing of the request object as a SqlQuery (contained in module druid-sql),
some classes have been moved from druid-server to druid-services with
the same package name.
2021-08-13 18:44:39 +05:30
Rohan Garg 2004a94675
Cleanup test dependencies in hdfs-storage extension (#11563)
* Cleanup test dependencies in hdfs-storage extension

* Fix working directory in LocalFileSystem in indexing-hadoop test
2021-08-10 07:52:32 -07:00
Suneet Saldanha 361bfdcaa5
Better logging for lookups (#11539)
* Better logging for lookups

The default pollPeriod of 0 means that lookups are loaded once only at startup

Add a warning message to warn operators about this. I suspect that most
operators using jdbc or uri would expect eventual consistency with the source
of the lookups if using jdbc or uri. So make this a warning to make it easier
to debug if an operator notices a data inconsistency issue.

* oops
2021-08-04 16:44:54 -07:00
Yi Yuan aa7cb50f24
Add DynamicConfigProvider for Schema Registry (#11362)
* add_DynamicConfigProvider_for_schema_registry

* bug fixed

* add document

* fix document

* fix spot bug

* fix document

* inject ObjectMapper

* add DynamicConfigProviderUtils

* add UT

* bug fixed

Co-authored-by: yuanyi <yuanyi@freewheel.tv>
2021-08-03 13:24:52 -07:00
Agustin Gonzalez a2da407b70
Add error msg to parallel task's TaskStatus (#11486)
* Add error msg to parallel task's TaskStatus

* Consolidate failure block

* Add failure test

* Make it fail

* Add fail while stopped

* Simplify hash task test using a runner that fails after so many runs (parameter)

* Remove unthrown exception

* Use runner names to identify phase

* Added range partition kill test & fixed a timing bug with the custom runner

* Forbidden api

* Style

* Unit test code cleanup

* Added message to invalid state exception and improved readability  of the phase error messages for the parallel task failure unit tests
2021-08-02 12:11:28 -07:00
dependabot[bot] cf674c833c
Bump maven-resources-plugin from 3.1.0 to 3.2.0 (#11525)
Bumps [maven-resources-plugin](https://github.com/apache/maven-resources-plugin) from 3.1.0 to 3.2.0.
- [Release notes](https://github.com/apache/maven-resources-plugin/releases)
- [Commits](https://github.com/apache/maven-resources-plugin/compare/maven-resources-plugin-3.1.0...maven-resources-plugin-3.2.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-resources-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2021-08-02 09:38:34 -07:00
Dongjoon Hyun dbed4424b5
Upgrade ORC to 1.6.9 (#11518) 2021-07-31 23:33:03 -07:00
Xavier Léauté 4bca7f014e
update error-prone to 2.8.0 with fix for crashing check (#11494)
* error-prone 2.8.0 fixes https://github.com/google/error-prone/issues/2396
* fix for a few ignored return values
* fix unknown args in sub-modules
2021-07-29 09:13:46 -07:00
zachjsh a2538d264d
Add back missing unit test coverage in AvroFlattenerMakerTest (#11451)
* Add back missing unit test coverage in AvroFlattenerMakerTest

Adds back test coverage for Avro flattener that was mistakenly removed in https://github.com/apache/druid/pull/10505. Recfactored the tests a bit too.

* resolve checkstyle warnings
2021-07-20 18:27:00 -07:00
Abhishek Agarwal 94c1671eaf
Split SegmentLoader into SegmentLoader and SegmentCacheManager (#11466)
This PR splits current SegmentLoader into SegmentLoader and SegmentCacheManager.

SegmentLoader - this class is responsible for building the segment object but does not expose any methods for downloading, cache space management, etc. Default implementation delegates the download operations to SegmentCacheManager and only contains the logic for building segments once downloaded. . This class will be used in SegmentManager to construct Segment objects.

SegmentCacheManager - this class manages the segment cache on the local disk. It fetches the segment files to the local disk, can clean up the cache, and in the future, support reserve and release on cache space. [See https://github.com/Make SegmentLoader extensible and customizable #11398]. This class will be used in ingestion tasks such as compaction, re-indexing where segment files need to be downloaded locally.
2021-07-21 00:14:19 +05:30
Dongjoon Hyun 5037493e45
Bump commons-io to 2.11.0 (#11460)
* Bump commons-io to 2.11.0

* Address comments

* Remove try catch

* Fix checkstyle
2021-07-19 15:47:14 -07:00
Clint Wylie 2705fe98fa
Fix avro json serde issues (#11455) 2021-07-20 00:32:05 +08:00
frank chen 2236cf2234
eliminate extra object instantiation (#11345) 2021-07-12 18:31:39 -07:00
Sandeep 18b8ac5349
removes unnecessary checks (#11431)
* removes unnecessary checks

* removes unnecessary checks
2021-07-12 18:21:16 -07:00
Clint Wylie d0b4e55a6f
fix pom version reference (#11435) 2021-07-13 08:37:57 +08:00
Clint Wylie 63fcd77c38
support using mariadb connector with mysql extensions (#11402)
* support using mariadb connector with mysql extensions

* cleanup and more tests

* fix test

* javadocs, more tests, etc

* style and more test

* more test more better

* missing pom

* more pom
2021-07-08 12:25:37 -07:00
Joseph Glanville d5e8d4d680
Avro union support (#10505)
* Avro union support

* Document new union support

* Add support for AvroStreamInputFormat and fix checkstyle

* Extend multi-member union test schema and format

* Some additional docs and add Enums to spelling

* Rename explodeUnions -> extractUnions

* explode -> extract

* ByType

* Correct spelling error
2021-07-06 22:05:41 -07:00
Clint Wylie 17efa6f556
add single input string expression dimension vector selector and better expression planning (#11213)
* add single input string expression dimension vector selector and better expression planning

* better

* fixes

* oops

* rework how vector processor factories choose string processors, fix to be less aggressive about vectorizing

* oops

* javadocs, renaming

* more javadocs

* benchmarks

* use string expression vector processor with vector size 1 instead of expr.eval

* better logging

* javadocs, surprising number of the the

* more

* simplify
2021-07-06 11:20:49 -07:00
Agustin Gonzalez a9c4b478ab
Fix expiration logic for ldap internal credential cache (#11395)
* Fix expiration logic for ldap internal credential cache

* Removed sleeps from tests

* Make method package scoped so it can be used in unit tests

* Removed unused thrown exceptions
2021-07-01 14:34:29 -07:00
Abhishek Agarwal 03a6a6d6e1
Replace Processing ExecutorService with QueryProcessingPool (#11382)
This PR refactors the code for QueryRunnerFactory#mergeRunners to accept a new interface called QueryProcessingPool instead of ExecutorService for concurrent execution of query runners. This interface will let custom extensions inject their own implementation for deciding which query-runner to prioritize first. The default implementation is the same as today that takes the priority of query into account. QueryProcessingPool can also be used as a regular executor service. It has a dedicated method for accepting query execution work so implementations can differentiate between regular async tasks and query execution tasks. This dedicated method also passes the QueryRunner object as part of the task information. This hook will let custom extensions carry any state from QuerySegmentWalker to QueryProcessingPool#mergeRunners which is not possible currently.
2021-07-01 16:03:08 +05:30
frank chen 906a704c55
Eliminate ambiguities of KB/MB/GB in the doc (#11333)
* GB ---> GiB

* suppress spelling check

* MB --> MiB, KB --> KiB

* Use IEC binary prefix

* Add reference link

* Fix doc style
2021-06-30 13:42:45 -07:00
zachjsh 8037a54525
revert commons-io to 2.6 (#11392)
* * revert commons-io to 2.6

* * fix failing tests
2021-06-29 23:04:38 -07:00
Shankeerthan Kasilingam af2ab98574
Use ExecutorService variables to assign ExecutorService Instances (#11373)
* Added inspection rule to prohibit ExecutorService assignment to Executor

* Use ExecutorService type variable to assign ExecutorService

* Changed : Variable => variable

* Removed unused Executor import
2021-06-25 16:56:34 -07:00
Yi Yuan de8daf8139
Delete buildV9Directly in Kafka and Kinesis Indexing Service (#11351)
* delete_buildV9Directly_in_kafka_and_kinesis_indexing_service

* delete

* delete them from server

* delete buildV9Directly from hadoop indexing

* bug fixed

Co-authored-by: yuanyi <yuanyi@freewheel.tv>
2021-06-23 16:36:46 -07:00
Clint Wylie 267c298293
define superuser permissions set in druid-server instead of druid-basic-auth extension (#11376) 2021-06-22 16:03:58 -07:00
Xavier Léauté a1c20d7457
update jackson dependencies to use bom (#11353)
Switching to the bom dependency declaration simplifies managing jackson
dependencies. It also removes the need to override individual library
versions for CVE fixes, since the bom takes care of that internally.

This change aligns our jackson dependency versions on 2.10.5(.x):
- updates jackson libraries from 2.10.2 to 2.10.5
- jackson-databind remains at 2.10.5.1 as defined in the bom

Release notes: https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.10
2021-06-16 18:37:30 -07:00
Xavier Léauté 712f2a5d00
upgrade error-prone to 2.7.1 and support checks with Java 11+ (#11363)
* upgrade error-prone to 2.7.1 and support checks with Java 11+

- upgrade error-prone to 2.7.1
- support running error-prone with Java 11 and above using -Xplugin
  instead of custom compiler
- add compiler arguments to ignore warnings/errors in Java 15/16
- introduce strictCompile property to enable strict profiles since we
  now need multiple strict profiles for Java 8
- properly exclude all generated source files from error-prone
- fix druid-processing overriding annotation processors from parent pom
- fix druid-core disabling most non-default checks
- align plugin and annotation errorprone versions
- fix / suppress additional issues found by error-prone:
  * fix bug in SeekableStreamSupervisor initializing ArrayList size with
    the taskGroupdId
  * fix missing @Override annotations
- remove outdated compiler plugin in benchmarks
- remove deleted ParameterPackage error-prone rule
- re-enable checks on benchmark module as well

* fix IntelliJ inspections

* disable LongFloatConversion due to bug in error-prone with JDK 8

* add comment about InsecureCrypto
2021-06-16 12:55:34 -07:00
dependabot[bot] 167044f715
Bump fastutil from 8.2.3 to 8.5.4 (#11347)
* Bump fastutil from 8.2.3 to 8.5.4

Bumps [fastutil](https://github.com/vigna/fastutil) from 8.2.3 to 8.5.4.
- [Release notes](https://github.com/vigna/fastutil/releases)
- [Changelog](https://github.com/vigna/fastutil/blob/master/CHANGES)
- [Commits](https://github.com/vigna/fastutil/compare/8.2.3...8.5.4)

---
updated-dependencies:
- dependency-name: it.unimi.dsi:fastutil
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* update licenses.yaml
* update maven dependency list for -core and -extra libraries to pass maven dependency checks

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Xavier Léauté <xvrl@apache.org>
2021-06-10 07:43:18 -07:00
Egor Riashin 9047fa3d9c
S3 ingestion can assume role (#10995)
* feature s3 assume role

* feature s3 assume role

* feature s3 assume role

* feature s3 assume role

* feature s3 assume role

* feature s3 assume role

* tests fix

* spelling fix

* sts fix

Co-authored-by: egor-ryashin <egor.ryashin@rilldata.com>
2021-06-09 16:02:35 +05:30
dependabot[bot] be10a236d5
Bump commons-io from 2.6 to 2.9.0 (#11338)
* Bump commons-io from 2.6 to 2.9.0

Bumps commons-io from 2.6 to 2.9.0.

---
updated-dependencies:
- dependency-name: commons-io:commons-io
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* update licenses.yaml to reflect version bumps
* fix tests relying on specific log messages

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Xavier Léauté <xvrl@apache.org>
2021-06-08 10:02:59 -07:00
Abhishek Agarwal 44d629319d
handle timestamps of complex types when parsing protobuf messages (#11293)
* handle timestamps correctly when parsing protobuf

* Add timestamp handling to ProtobufReader

* disable checkstyle for generated sourcecode

* Fix test

* try this

* refactor tests
2021-06-07 15:19:39 +05:30
Xavier Léauté b517c3339b
remove ZooKeeper 3.4 support + pass tests with Java 15 (#11073)
With this change, Druid will only support ZooKeeper 3.5.x and later.

In order to support Java 15 we need to switch to ZK 3.5.x client libraries and drop support for ZK 3.4.x
(see #10780 for the detailed reasons) 

* remove ZooKeeper 3.4.x compatibility
* exclude additional ZK 3.5.x netty dependencies to ensure we use our version
* keep ZooKeeper version used for integration tests in sync with client library version
* remove the need to specify ZK version at runtime for docker
* add support to run integration tests with JDK 15
* build and run unit tests with Java 15 in travis
2021-05-25 12:49:49 -07:00
Agustin Gonzalez 8e5048e643
Avoid memory mapping hydrants after they are persisted & after they are merged for native batch ingestion (#11123)
* Avoid mapping hydrants in create segments phase for native ingestion

* Drop queriable indices after a given sink is fully merged

* Do not drop memory mappings for realtime ingestion

* Style fixes

* Renamed to match use case better

* Rollback memoization code and use the real time flag instead

* Null ptr fix in FireHydrant toString plus adjustments to memory pressure tracking calculations

* Style

* Log some count stats

* Make sure sinks size is obtained at the right time

* BatchAppenderator unit test

* Fix comment typos

* Renamed methods to make them more readable

* Move persisted metadata from FireHydrant class to AppenderatorImpl. Removed superfluous differences and fix comment typo. Removed custom comparator

* Missing dependency

* Make persisted hydrant metadata map concurrent and better reflect the fact that keys are Java references. Maintain persisted metadata when dropping/closing segments.

* Replaced concurrent variables with normal ones

* Added   batchMemoryMappedIndex "fallback" flag with default "false". Set this to "true" make code fallback to previous code path.

* Style fix.

* Added note to new setting in doc, using Iterables.size (and removing a dependency), and fixing a typo in a comment.

* Forgot to commit this edited documentation message
2021-05-11 14:34:26 -07:00
Clint Wylie f6662b4893
fix count and average SQL aggregators on constant virtual columns (#11208)
* fix count and average SQL aggregators on constant virtual columns

* style

* even better, why are we tracking virtual columns in aggregations at all if we have a virtual column registry

* oops missed a few

* remove unused

* this will fix it
2021-05-10 13:41:48 -07:00
Clint Wylie 691d7a1d54
SQL timeseries no longer skip empty buckets with all granularity (#11188)
* SQL timeseries no longer skip empty buckets with all granularity

* add comment, fix tests

* the ol switcheroo

* revert unintended change

* docs and more tests

* style

* make checkstyle happy

* docs fixes and more tests

* add docs, tests for array_agg

* fixes

* oops

* doc stuffs

* fix compile, match doc style
2021-05-10 10:13:37 -07:00
Yuanli Han 8647040f4d
Allow user to set group.id for Kafka ingestion task (#11147)
* allow user to set group.id for Kafka ingestion task

* fix test coverage by removing deprecated code and add doc

* fix typo

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: frank chen <frankchen@apache.org>

Co-authored-by: frank chen <frankchen@apache.org>
2021-05-09 11:56:19 +08:00
Gian Merlino 809e001939
Vectorize the DataSketches quantiles aggregator. (#11183)
* Vectorize the DataSketches quantiles aggregator.

Also removes synchronization for the BufferAggregator and VectorAggregator
implementations, since it is not necessary (similar to #11115).

Extends DoublesSketchAggregatorTest and DoublesSketchSqlAggregatorTest
to run all test cases in vectorized mode.

* Style fix.
2021-05-02 16:14:21 -07:00
Xavier Léauté 0296f20551
upgrade Apache Kafka to 2.8.0 (#11139)
* upgrade to Apache Kafka 2.8.0 (release notes:
  https://downloads.apache.org/kafka/2.8.0/RELEASE_NOTES.html)
* pass Kafka version as a Docker argument in integration tests
  to keep in sync with maven version
* fix use of internal Kafka APIs in integration tests
2021-04-24 08:27:07 -07:00
Gian Merlino f2b54de205
Vectorized versions of HllSketch aggregators. (#11115)
* Vectorized versions of HllSketch aggregators.

The patch uses the same "helper" approach as #10767 and #10304, and
extends the tests to run in both vectorized and non-vectorized modes.

Also includes some minor changes to the theta sketch vector aggregator:

- Cosmetic changes to make the hll and theta implementations look
  more similar.
- Extends the theta SQL tests to run in vectorized mode.

* Updates post-code-review.

* Fix javadoc.
2021-04-16 18:45:46 -07:00
Gian Merlino 202c78c8f3
Enable rewriting certain inner joins as filters. (#11068)
* Enable rewriting certain inner joins as filters.

The main logic for doing the rewrite is in JoinableFactoryWrapper's
segmentMapFn method. The requirements are:

- It must be an inner equi-join.
- The right-hand columns referenced by the condition must not contain any
  duplicate values. (If they did, the inner join would not be guaranteed
  to return at most one row for each left-hand-side row.)
- No columns from the right-hand side can be used by anything other than
  the join condition itself.

HashJoinSegmentStorageAdapter is also modified to pass through to
the base adapter (even allowing vectorization!) in the case where 100%
of join clauses could be rewritten as filters.

In support of this goal:

- Add Query getRequiredColumns() method to help us figure out whether
  the right-hand side of a join datasource is being used or not.
- Add JoinConditionAnalysis getRequiredColumns() method to help us
  figure out if the right-hand side of a join is being used by later
  join clauses acting on the same base.
- Add Joinable getNonNullColumnValuesIfAllUnique method to enable
  retrieving the set of values that will form the "in" filter.
- Add LookupExtractor canGetKeySet() and keySet() methods to support
  LookupJoinable in its efforts to implement the new Joinable method.
- Add "enableRewriteJoinToFilter" feature flag to
  JoinFilterRewriteConfig. The default is disabled.

* Test improvements.

* Test fixes.

* Avoid slow size() call.

* Remove invalid test.

* Fix style.

* Fix mistaken default.

* Small fixes.

* Fix logic error.
2021-04-14 10:49:27 -07:00
Jihoon Son 25db8787b3
Fix CAST being ignored when aggregating on strings after cast (#11083)
* Fix CAST being ignored when aggregating on strings after cast

* fix checkstyle and dependency

* unused import
2021-04-12 22:21:24 -07:00