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Unknown 3ea9d6825b [SPARK-29019][WEBUI] Improve tooltip JDBC/ODBC Server tab 
### What changes were proposed in this pull request?
Some of the columns of JDBC/ODBC server tab in Web UI are hard to understand.
We have documented it at SPARK-28373 but I think it is better to have some tooltips in the SQL statistics table to explain the columns
![image](https://user-images.githubusercontent.com/12819544/64489775-38e48980-d257-11e9-868a-5f5f6a0f1e46.png)
The columns with new tooltips are finish time, close time, execution time and duration
![image](https://user-images.githubusercontent.com/12819544/64489858-1141f100-d258-11e9-9e4e-fae3299da465.png)
Improvements in UIUtils can be used in other tables in WebUI to add tooltips

### Why are the changes needed?
It is interesting to improve the undestanding of the WebUI

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

### How was this patch tested?
Unit tests are added and manual test.

Closes #25723 from planga82/feature/SPARK-29019_tooltipjdbcServer.

Lead-authored-by: Unknown <soypab@gmail.com>
Co-authored-by: Pablo <soypab@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
2019-09-29 18:34:24 -05:00
..
catalyst [SPARK-28476][SQL] Support ALTER DATABASE SET LOCATION 2019-09-29 11:31:49 -07:00
core [SPARK-28476][SQL] Support ALTER DATABASE SET LOCATION 2019-09-29 11:31:49 -07:00
hive [SPARK-29247][SQL] Redact sensitive information in when construct HiveClientHive.state 2019-09-29 14:30:32 -07:00
hive-thriftserver [SPARK-29019][WEBUI] Improve tooltip JDBC/ODBC Server tab 2019-09-29 18:34:24 -05:00
create-docs.sh
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
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.