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gatorsmile 2d799d0808 [SPARK-21504][SQL] Add spark version info into table metadata 
## What changes were proposed in this pull request?
This PR is to add the spark version info in the table metadata. When creating the table, this value is assigned. It can help users find which version of Spark was used to create the table.

## How was this patch tested?
N/A

Author: gatorsmile <gatorsmile@gmail.com>

Closes #18709 from gatorsmile/addVersion.
2017-08-09 08:46:25 -07:00
..
catalyst [SPARK-21504][SQL] Add spark version info into table metadata 2017-08-09 08:46:25 -07:00
core [SPARK-21504][SQL] Add spark version info into table metadata 2017-08-09 08:46:25 -07:00
hive [SPARK-21504][SQL] Add spark version info into table metadata 2017-08-09 08:46:25 -07:00
hive-thriftserver [SPARK-21637][SPARK-21451][SQL] get spark.hadoop.* properties from sysProps to hiveconf 2017-08-05 17:30:47 -07:00
create-docs.sh [SPARK-21485][SQL][DOCS] Spark SQL documentation generation for built-in functions 2017-07-26 09:38:51 -07:00
gen-sql-markdown.py [SPARK-21485][FOLLOWUP][SQL][DOCS] Describes examples and arguments separately, and note/since in SQL built-in function documentation 2017-08-05 10:10:56 -07:00
mkdocs.yml [SPARK-21485][SQL][DOCS] Spark SQL documentation generation for built-in functions 2017-07-26 09:38:51 -07:00
README.md [SPARK-21485][SQL][DOCS] Spark SQL documentation generation for built-in functions 2017-07-26 09:38:51 -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.

Running sql/create-docs.sh generates SQL documentation for built-in functions under sql/site.