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Jungtaek Lim (HeartSaVioR) fe68e95a5a [SPARK-24634][SS][FOLLOWUP] Rename the variable from "numLateInputs" to "numRowsDroppedByWatermark" 
### What changes were proposed in this pull request?

This PR renames the variable from "numLateInputs" to "numRowsDroppedByWatermark" so that it becomes self-explanation.

### Why are the changes needed?

This is originated from post-review, see https://github.com/apache/spark/pull/28607#discussion_r439853232

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

No, as SPARK-24634 is not introduced in any release yet.

### How was this patch tested?

Existing UTs.

Closes #28828 from HeartSaVioR/SPARK-24634-v3-followup.

Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan.opensource@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-06-16 16:41:08 +09:00
..
catalyst [SPARK-31986][SQL] Fix Julian-Gregorian micros rebasing of overlapping local timestamps 2020-06-16 06:00:05 +00:00
core [SPARK-24634][SS][FOLLOWUP] Rename the variable from "numLateInputs" to "numRowsDroppedByWatermark" 2020-06-16 16:41:08 +09:00
hive [SPARK-31954][SQL] Delete duplicate testcase in HiveQuerySuite 2020-06-11 22:03:40 +09:00
hive-thriftserver Revert "[SPARK-31926][SQL][TEST-HIVE1.2][TEST-MAVEN] Fix concurrency issue for ThriftCLIService to getPortNumber" 2020-06-15 19:04:23 -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.