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Senthil Kumar 6bd491ecb8 [SPARK-36643][SQL] Add more information in ERROR log while SparkConf is modified when spark.sql.legacy.setCommandRejectsSparkCoreConfs is set 
### What changes were proposed in this pull request?

This PR adds additional information to ERROR log while SparkConf is modified when spark.sql.legacy.setCommandRejectsSparkCoreConfs is set

### Why are the changes needed?

Right now, by default sql.legacy.setCommandRejectsSparkCoreConfs is set as true in Spark 3.* versions int order to avoid changing Spark Confs. But from the error message we get confused if we can not modify/change Spark conf in Spark 3.* or not.

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

Yes. Trivial change in the error messages is included

### How was this patch tested?

New Test added - SPARK-36643: Show migration guide when attempting SparkConf

Closes #33894 from senthh/1st_Sept_2021.

Lead-authored-by: Senthil Kumar <senthh@gmail.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
2021-09-03 23:49:45 -07:00
..
catalyst [SPARK-36643][SQL] Add more information in ERROR log while SparkConf is modified when spark.sql.legacy.setCommandRejectsSparkCoreConfs is set 2021-09-03 23:49:45 -07:00
core [SPARK-36643][SQL] Add more information in ERROR log while SparkConf is modified when spark.sql.legacy.setCommandRejectsSparkCoreConfs is set 2021-09-03 23:49:45 -07:00
hive [SPARK-36327][SQL] Spark sql creates staging dir inside database directory rather than creating inside table directory 2021-08-27 12:58:28 -07:00
hive-thriftserver [SPARK-36400][TEST][FOLLOWUP] Add test for redacting sensitive information in UI by config 2021-09-02 17:04:49 +09:00
create-docs.sh [SPARK-34010][SQL][DODCS] Use python3 instead of python in SQL documentation build 2021-01-05 19:48:10 +09:00
gen-sql-api-docs.py [SPARK-34747][SQL][DOCS] Add virtual operators to the built-in function document 2021-03-19 10:19:26 +09:00
gen-sql-config-docs.py [SPARK-36657][SQL] Update comment in 'gen-sql-config-docs.py' 2021-09-02 18:50:59 -07:00
gen-sql-functions-docs.py
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.