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uncleGen 4f96670358
[SPARK-31953][SS] Add Spark Structured Streaming History Server Support 
### What changes were proposed in this pull request?

Add Spark Structured Streaming History Server Support.

### Why are the changes needed?

Add a streaming query history server plugin.

![image](https://user-images.githubusercontent.com/7402327/84248291-d26cfe80-ab3b-11ea-86d2-98205fa2bcc4.png)
![image](https://user-images.githubusercontent.com/7402327/84248347-e44ea180-ab3b-11ea-81de-eefe207656f2.png)
![image](https://user-images.githubusercontent.com/7402327/84248396-f0d2fa00-ab3b-11ea-9b0d-e410115471b0.png)

- Follow-ups
  - Query duration should not update in history UI.

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

### How was this patch tested?
Update UT.

Closes #28781 from uncleGen/SPARK-31953.

Lead-authored-by: uncleGen <hustyugm@gmail.com>
Co-authored-by: Genmao Yu <hustyugm@gmail.com>
Co-authored-by: Yuanjian Li <yuanjian.li@databricks.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
2020-12-02 17:11:51 -08:00
..
catalyst [SPARK-33627][SQL] Add new function UNIX_SECONDS, UNIX_MILLIS and UNIX_MICROS 2020-12-02 12:44:39 -08:00
core [SPARK-31953][SS] Add Spark Structured Streaming History Server Support 2020-12-02 17:11:51 -08:00
hive [SPARK-33618][CORE] Use hadoop-client instead of hadoop-client-api to make hadoop-aws work 2020-12-02 18:23:48 +09:00
hive-thriftserver [SPARK-33448][SQL] Support CACHE/UNCACHE TABLE commands for v2 tables 2020-11-30 05:37:10 +00:00
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.