339c0f9a62
### What changes were proposed in this pull request? This PR adds a doc builder for Spark SQL's configuration options. Here's what the new Spark SQL config docs look like ([configuration.html.zip](https://github.com/apache/spark/files/4172109/configuration.html.zip)):  Compare this to the [current docs](http://spark.apache.org/docs/3.0.0-preview2/configuration.html#spark-sql):  ### Why are the changes needed? There is no visibility into the various Spark SQL configs on [the config docs page](http://spark.apache.org/docs/3.0.0-preview2/configuration.html#spark-sql). ### Does this PR introduce any user-facing change? No, apart from new documentation. ### How was this patch tested? I tested this manually by building the docs and reviewing them in my browser. Closes #27459 from nchammas/SPARK-30510-spark-sql-options. Authored-by: Nicholas Chammas <nicholas.chammas@liveramp.com> Signed-off-by: HyukjinKwon <gurwls223@apache.org>
13 lines
1.2 KiB
Markdown
13 lines
1.2 KiB
Markdown
Spark SQL
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This module provides support for executing relational queries expressed in either SQL or the DataFrame/Dataset API.
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Spark SQL is broken up into four subprojects:
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- Catalyst (sql/catalyst) - An implementation-agnostic framework for manipulating trees of relational operators and expressions.
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- 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.
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- Hive Support (sql/hive) - Includes extensions that allow 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.
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- HiveServer and CLI support (sql/hive-thriftserver) - Includes support for the SQL CLI (bin/spark-sql) and a HiveServer2 (for JDBC/ODBC) compatible server.
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Running `./sql/create-docs.sh` generates SQL documentation for built-in functions under `sql/site`, and SQL configuration documentation that gets included as part of `configuration.md` in the main `docs` directory.
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