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Gabor Somogyi 4af1ac9384 [SPARK-32047][SQL] Add JDBC connection provider disable possibility 
### What changes were proposed in this pull request?
At the moment there is no possibility to turn off JDBC authentication providers which exists on the classpath. This can be problematic because service providers are loaded with service loader. In this PR I've added `spark.sql.sources.disabledJdbcConnProviderList` configuration possibility (default: empty).

### Why are the changes needed?
No possibility to turn off JDBC authentication providers.

### Does this PR introduce _any_ user-facing change?
Yes, it introduces new configuration option.

### How was this patch tested?
* Existing + newly added unit tests.
* Existing integration tests.

Closes #29964 from gaborgsomogyi/SPARK-32047.

Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-10-12 12:24:54 +09:00
..
catalyst [SPARK-32047][SQL] Add JDBC connection provider disable possibility 2020-10-12 12:24:54 +09:00
core [SPARK-32047][SQL] Add JDBC connection provider disable possibility 2020-10-12 12:24:54 +09:00
hive [SPARK-33107][SQL] Remove hive-2.3 workaround code 2020-10-10 16:41:42 -07:00
hive-thriftserver [SPARK-33107][SQL] Remove hive-2.3 workaround code 2020-10-10 16:41:42 -07:00
create-docs.sh [SPARK-31550][SQL][DOCS] Set nondeterministic configurations with general meanings in sql configuration doc 2020-04-27 17:08:52 +09:00
gen-sql-api-docs.py [SPARK-31474][SQL][FOLLOWUP] Replace _FUNC_ placeholder with functionname in the note field of expression info 2020-04-23 13:33:04 +09:00
gen-sql-config-docs.py [SPARK-31550][SQL][DOCS] Set nondeterministic configurations with general meanings in sql configuration doc 2020-04-27 17:08:52 +09:00
gen-sql-functions-docs.py [SPARK-31562][SQL] Update ExpressionDescription for substring, current_date, and current_timestamp 2020-04-26 11:46:52 -07:00
mkdocs.yml [SPARK-30731] Update deprecated Mkdocs option 2020-02-19 17:28:58 +09:00
README.md [SPARK-30510][SQL][DOCS] Publicly document Spark SQL configuration options 2020-02-09 19:20:47 +09:00

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, and SQL configuration documentation that gets included as part of configuration.md in the main docs directory.