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Yuanjian Li 4938905a1c [SPARK-29864][SQL][FOLLOWUP] Reference the config for the old behavior in error message 
### What changes were proposed in this pull request?
Follow up work for SPARK-29864, reference the config  `spark.sql.legacy.fromDayTimeString.enabled` in error message.

### Why are the changes needed?
For better usability.

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

### How was this patch tested?
Existing tests.

Closes #27464 from xuanyuanking/SPARK-29864-follow.

Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-05 11:19:42 -08:00
..
catalyst [SPARK-29864][SQL][FOLLOWUP] Reference the config for the old behavior in error message 2020-02-05 11:19:42 -08:00
core [SPARK-29864][SQL][FOLLOWUP] Reference the config for the old behavior in error message 2020-02-05 11:19:42 -08:00
hive [SPARK-30525][SQL] HiveTableScanExec do not need to prune partitions again after pushing down to SessionCatalog for partition pruning 2020-02-04 01:24:53 +08:00
hive-thriftserver [SPARK-29543][SS][UI] Structured Streaming Web UI 2020-01-29 13:43:51 -08:00
create-docs.sh [MINOR][DOCS] Minor doc fixes related with doc build and uses script dir in SQL doc gen script 2017-08-26 13:56:24 +09:00
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 [SPARK-21485][SQL][DOCS] Spark SQL documentation generation for built-in functions 2017-07-26 09:38:51 -07:00
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.