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Maxim Gekk 705fc6ad93 [SPARK-30188][SQL][TESTS][FOLLOW-UP] Remove sorted in asserts of comparing two strings 
### What changes were proposed in this pull request?
In the PR, I propose to remove sorting in the asserts of checking output of:
- expression examples,
- SQL tests in `SQLQueryTestSuite`.

### Why are the changes needed?
* Sorted `actual` and `expected` make assert output unusable. Instead of `"[true]" did not equal "[false]"`, it looks like `"[ertu]" did not equal "[aefls]"`.
* Output of expression examples should be always the same except nondeterministic expressions listed in the `ignoreSet` of the `check outputs of expression examples` test.

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
By running `SQLQuerySuite` via `./build/sbt "sql/test:testOnly org.apache.spark.sql.SQLQuerySuite"`.

Closes #27324 from MaxGekk/remove-sorting-in-examples-tests.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-23 23:01:25 +08:00
..
catalyst [SPARK-30605][SQL] move defaultNamespace from SupportsNamespace to CatalogPlugin 2020-01-23 21:56:54 +08:00
core [SPARK-30188][SQL][TESTS][FOLLOW-UP] Remove sorted in asserts of comparing two strings 2020-01-23 23:01:25 +08:00
hive [SPARK-30535][SQL] Revert "[] Migrate ALTER TABLE commands to the new framework 2020-01-22 22:43:46 -08:00
hive-thriftserver [SPARK-30252][SQL] Disallow negative scale of Decimal 2020-01-21 21:09:48 +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.