61133cb8a6
## What changes were proposed in this pull request? `StreamingReadSupport` is designed to be a `package` interface. Mockito seems to complain during `Maven` testing. This doesn't fail in `sbt` and IntelliJ. For mock-testing purpose, this PR makes it `public` interface and adds explicit comments like `public interface ReadSupport` ```scala EpochCoordinatorSuite: *** RUN ABORTED *** java.lang.IllegalAccessError: tried to access class org.apache.spark.sql.sources.v2.reader.streaming.StreamingReadSupport from class org.apache.spark.sql.sources.v2.reader.streaming.ContinuousReadSupport$MockitoMock$58628338 at org.apache.spark.sql.sources.v2.reader.streaming.ContinuousReadSupport$MockitoMock$58628338.<clinit>(Unknown Source) at sun.reflect.GeneratedSerializationConstructorAccessor632.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.objenesis.instantiator.sun.SunReflectionFactoryInstantiator.newInstance(SunReflectionFactoryInstantiator.java:48) at org.objenesis.ObjenesisBase.newInstance(ObjenesisBase.java:73) at org.mockito.internal.creation.instance.ObjenesisInstantiator.newInstance(ObjenesisInstantiator.java:19) at org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker.createMock(SubclassByteBuddyMockMaker.java:47) at org.mockito.internal.creation.bytebuddy.ByteBuddyMockMaker.createMock(ByteBuddyMockMaker.java:25) at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:35) at org.mockito.internal.MockitoCore.mock(MockitoCore.java:69) ``` ## How was this patch tested? Pass the Jenkins with Maven build Closes #23463 from dongjoon-hyun/SPARK-26536-2. Authored-by: Dongjoon Hyun <dongjoon@apache.org> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org> |
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catalyst | ||
core | ||
hive | ||
hive-thriftserver | ||
create-docs.sh | ||
gen-sql-markdown.py | ||
mkdocs.yml | ||
README.md |
Spark SQL
This module provides support for executing relational queries expressed in either SQL or the DataFrame/Dataset API.
Spark SQL is broken up into four subprojects:
- Catalyst (sql/catalyst) - An implementation-agnostic framework for manipulating trees of relational operators and expressions.
- Execution (sql/core) - A query planner / execution engine for translating Catalyst's logical query plans into Spark RDDs. This component also includes a new public interface, SQLContext, that allows users to execute SQL or LINQ statements against existing RDDs and Parquet files.
- Hive Support (sql/hive) - Includes an extension of SQLContext called HiveContext that allows users to write queries using a subset of HiveQL and access data from a Hive Metastore using Hive SerDes. There are also wrappers that allow users to run queries that include Hive UDFs, UDAFs, and UDTFs.
- HiveServer and CLI support (sql/hive-thriftserver) - Includes support for the SQL CLI (bin/spark-sql) and a HiveServer2 (for JDBC/ODBC) compatible server.
Running sql/create-docs.sh
generates SQL documentation for built-in functions under sql/site
.