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Takeshi Yamamuro b5a02d37e6 [SPARK-29873][SQL][TESTS] Support --import directive to load queries from another test case in SQLQueryTestSuite 
### What changes were proposed in this pull request?

This pr is to support `--import` directive to load queries from another test case in SQLQueryTestSuite.

This fix comes from the cloud-fan suggestion in https://github.com/apache/spark/pull/26479#discussion_r345086978

### Why are the changes needed?

This functionality might reduce duplicate test code in `SQLQueryTestSuite`.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Run `SQLQueryTestSuite`.

Closes #26497 from maropu/ImportTests.

Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-11-14 14:38:27 +08:00
..
catalyst [SPARK-29837][SQL] PostgreSQL dialect: cast to boolean 2019-11-14 11:55:01 +08:00
core [SPARK-29873][SQL][TESTS] Support --import directive to load queries from another test case in SQLQueryTestSuite 2019-11-14 14:38:27 +08:00
hive [SPARK-29421][SQL] Supporting Create Table Like Using Provider 2019-11-11 15:25:56 +08:00
hive-thriftserver [SPARK-29873][SQL][TESTS] Support --import directive to load queries from another test case in SQLQueryTestSuite 2019-11-14 14:38:27 +08:00
create-docs.sh
gen-sql-markdown.py [SPARK-27328][SQL] Add 'deprecated' in ExpressionDescription for extended usage and SQL doc 2019-04-09 13:49:42 +08:00
mkdocs.yml
README.md [SPARK-28980][CORE][SQL][STREAMING][MLLIB] Remove most items deprecated in Spark 2.2.0 or earlier, for Spark 3 2019-09-09 10:19:40 -05:00

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 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.
  • 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.