History

hyukjinkwon f1a1f2607d [SPARK-19402][DOCS] Support LaTex inline formula correctly and fix warnings in Scala/Java APIs generation ## What changes were proposed in this pull request? This PR proposes three things as below: - Support LaTex inline-formula, `$ ... $` in Scala API documentation It seems currently, ``` $ ... $ ``` are rendered as they are, for example, <img width="345" alt="2017-01-30 10 01 13" src="https://cloud.githubusercontent.com/assets/6477701/22423960/ab37d54a-e737-11e6-9196-4f6229c0189c.png"> It seems mistakenly more backslashes were added. - Fix warnings Scaladoc/Javadoc generation This PR fixes t two types of warnings as below: ``` [warn] .../spark/sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala:335: Could not find any member to link for "UnsupportedOperationException". [warn] /** [warn] ^ ``` ``` [warn] .../spark/sql/core/src/main/scala/org/apache/spark/sql/internal/VariableSubstitution.scala:24: Variable var undefined in comment for class VariableSubstitution in class VariableSubstitution [warn] * `${var}`, `${system:var}` and `${env:var}`. [warn] ^ ``` - Fix Javadoc8 break ``` [error] .../spark/mllib/target/java/org/apache/spark/ml/PredictionModel.java:7: error: reference not found [error] * E.g., {link VectorUDT} for vector features. [error] ^ [error] .../spark/mllib/target/java/org/apache/spark/ml/PredictorParams.java:12: error: reference not found [error] * E.g., {link VectorUDT} for vector features. [error] ^ [error] .../spark/mllib/target/java/org/apache/spark/ml/Predictor.java:10: error: reference not found [error] * E.g., {link VectorUDT} for vector features. [error] ^ [error] .../spark/sql/hive/target/java/org/apache/spark/sql/hive/HiveAnalysis.java:5: error: reference not found [error] * Note that, this rule must be run after {link PreprocessTableInsertion}. [error] ^ ``` ## How was this patch tested? Manually via `sbt unidoc` and `jeykil build`. Author: hyukjinkwon <gurwls223@gmail.com> Closes #16741 from HyukjinKwon/warn-and-break.		2017-02-01 13:26:16 +00:00
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catalyst	[SPARK-19402][DOCS] Support LaTex inline formula correctly and fix warnings in Scala/Java APIs generation	2017-02-01 13:26:16 +00:00
core	[SPARK-19402][DOCS] Support LaTex inline formula correctly and fix warnings in Scala/Java APIs generation	2017-02-01 13:26:16 +00:00
hive	[SPARK-19402][DOCS] Support LaTex inline formula correctly and fix warnings in Scala/Java APIs generation	2017-02-01 13:26:16 +00:00
hive-thriftserver	[SPARK-18857][SQL] Don't use `Iterator.duplicate` for `incrementalCollect` in Thrift Server	2017-01-10 13:27:55 +00:00
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.