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spark-instrumented-optimizer/sql
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Jacek Laskowski b162cc0c28
[MINOR][CORE][SQL][DOCS] Typo fixes 
## What changes were proposed in this pull request?

Typo fixes

## How was this patch tested?

Local build. Awaiting the official build.

Author: Jacek Laskowski <jacek@japila.pl>

Closes #16144 from jaceklaskowski/typo-fixes.
2016-12-09 18:45:57 +08:00
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catalyst [MINOR][CORE][SQL][DOCS] Typo fixes 2016-12-09 18:45:57 +08:00
core [SPARK-18776][SS] Make Offset for FileStreamSource corrected formatted in json 2016-12-08 17:53:34 -08:00
hive [SPARK-18637][SQL] Stateful UDF should be considered as nondeterministic 2016-12-09 16:35:06 +08:00
hive-thriftserver [SPARK-18695] Bump master branch version to 2.2.0-SNAPSHOT 2016-12-02 21:09:37 -08:00
README.md [SPARK-16557][SQL] Remove stale doc in sql/README.md 2016-07-14 19:24:42 -07:00

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 allows 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.