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Gian Merlino 8276c031c5
Add druid.sql.approxCountDistinct.function property. (#11181) 
* Add druid.sql.approxCountDistinct.function property.

The new property allows admins to configure the implementation for
APPROX_COUNT_DISTINCT and COUNT(DISTINCT expr) in approximate mode.

The motivation for adding this setting is to enable site admins to
switch the default HLL implementation to DataSketches.

For example, an admin can set:

  druid.sql.approxCountDistinct.function = APPROX_COUNT_DISTINCT_DS_HLL

* Fixes

* Fix tests.

* Remove erroneous cannotVectorize.

* Remove unused import.

* Remove unused test imports.
 		2021-10-25 12:16:21 -07:00
..
core De-incubation cleanup in code, docs, packaging (#9108) 2020-01-03 12:33:19 -05:00
i18n Docs refactor of ingestion. Carries #11541 (#11576) 2021-08-13 08:42:03 -07:00
pages/en Docusaurus build framework + ingestion doc refresh. (#8311) 2019-08-20 21:48:59 -07:00
script Graduation update for ASF release process guide and download links (#9126) 2020-01-06 15:00:33 -06:00
scss fix website build (#10172) 2020-07-11 22:01:43 -07:00
static fix website build (#10172) 2020-07-11 22:01:43 -07:00
.gitignore Docusaurus build framework + ingestion doc refresh. (#8311) 2019-08-20 21:48:59 -07:00
.spelling Add druid.sql.approxCountDistinct.function property. (#11181) 2021-10-25 12:16:21 -07:00
README.md Updates to source and doc build pages (#11464) 2021-07-20 18:07:34 -07:00
package-lock.json MySQL extension with MariaDB connector docs (#11608) 2021-08-19 01:52:26 -07:00
package.json Druid Quickstart refactor and update (#9766) 2020-04-30 12:07:28 -07:00
pom.xml bump version to 0.23.0-SNAPSHOT (#11670) 2021-09-08 15:56:04 -07:00
redirects.json fix website build (#10172) 2020-07-11 22:01:43 -07:00
sidebars.json add missing stuff to docs sidebar (#11681) 2021-09-09 11:43:49 -07:00
siteConfig.js De-incubation cleanup in code, docs, packaging (#9108) 2020-01-03 12:33:19 -05:00

README.md

Druid doc builder

This website was created with Docusaurus.

To view documentation run:

npm install

Then run:

npm start

The current version of the web site appears in your browser. Edit pages with your favorite editor. Refresh the web page after each edit to review your changes.

Dependencies

  • NodeJS. Use the version Docusaurus specifies, not a newer one. (For example, if 12.x is requested, don't install 16.x.) Docusaurus may require a version newer than that available in your Linux package repository, but older than the latest version. See this page to find the version required by Docusaurus.
  • The Yarn dependency from Docusaurus is optional. (This Yarn is not the Hadoop resource manager, it is a package manager for Node.js).
  • Docusaurus. Installed automatically as part of the the above npm commands.

Variables

Documentation pages can refer to a number of special variables using the {{var}} syntax:

  • DRUIDVERSION - the version of Druid in which the page appears. Allows creating links to files of the same version on GitHub.

The variables are not replaced when running the web site locally using the start command above.

Spellcheck

Please run a spellcheck before issuing a pull request to avoid a build failure due to spelling issues. Run:

npm run link-lint
npm run spellcheck

If you introduce new (correctly spelled) project names or technical terms, add them to the dictionary in the .spelling file in this directory. Also, terms enclosed in backticks are not spell checked. Example: `symbolName`