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Author SHA1 Message Date
Gian Merlino 4c33d0a00f Add some new expression functions and macros. (#4442) 
* Add some new expression functions and macros.

See misc/math-expr.md for the list of added functions, except for
"like", which previously existed but was not documented.

* Add easymock to datasketches tests.

* Add easymock to distinctcount tests.

* Add easymock to virtual-columns tests.

* Code review comments.

* Clean up code a bit.

* Add easymock to scan-query tests.

* Rework ExprMacros that have multiple impls.

* Improve test coverage.
 2017-06-28 10:15:58 -07:00
Gian Merlino 1f2afccdf8 Expressions: Add ExprMacros. (#4365) 
* Expressions: Add ExprMacros, which have the same syntax as functions, but
can convert themselves to any kind of Expr at parse-time.

ExprMacroTable is an extension point for adding new ExprMacros. Anything
that might need to parse expressions needs an ExprMacroTable, which can
be injected through Guice.

* Address code review comments.
 2017-06-08 09:32:10 -04:00
Navis Ryu e10def32f2 Support string type in math expression (#2836) 
* Support string type in math expression

addressed comments

addressed comments

Addressed comments

* Updated math function document

* Addressed comments
 2016-11-02 21:10:48 -06:00
Navis Ryu 45a3a26ef7 Add more math functions (#2822) 
* Add more math functions

* added function list
 2016-05-03 10:55:13 -07:00
Himanshu Gupta 308211cc18 math expression language with parser/lexer generated using ANTLR 2016-04-08 11:40:29 -05:00
Himanshu Gupta 36ccfbd20e math expression language with hand written parser/lexer 2016-04-08 11:40:29 -05:00
fjy 1aa363cea7 new quickstart 2016-02-04 09:37:38 -08:00
Himanshu Gupta a99aef29a1 adding aggregators to segment metadata 2016-01-19 14:23:39 -06:00
michael.schiff 4ed0128b3b removed documentation about (removed) DeleteTask 2015-12-07 15:56:46 -08:00
Jakub Kukul 8248f7f40c Minor docs fixes in 'Evaluate Druid' section. 2015-12-07 19:42:52 +01:00
Gian Merlino 8defe29270 Merge pull request #1901 from guobingkun/fix_typo_and_rename 
Fix metadata typo and rename default extension directory
 2015-11-03 14:02:11 -08:00
Bingkun Guo 962f65cc76 fix metadata typo and rename default extension directory 2015-11-03 14:50:42 -06:00
Himanshu Gupta 8b67417ac8 make methods in Index[Merger,Maker,IO] non-static so that they can have 
appropriate ObjectMapper injected instead of creating one statically
 2015-11-02 23:24:26 -06:00
Bingkun Guo 4914925d65 New extension loading mechanism 
1) Remove maven client from downloading extensions at runtime.
2) Provide a way to load Druid extensions and hadoop dependencies through file system.
3) Refactor pull-deps so that it can download extensions into extension directories.
4) Add documents on how to use this new extension loading mechanism.
5) Change the way how Druid tarball is generated. Now all the extensions + hadoop-client 2.3.0
are packaged within the Druid tarball.
 2015-10-21 14:22:36 -05:00
Himanshu Gupta 6e550d5346 update doc about aggregation field in merge task and a null check 2015-09-24 22:25:07 -05:00
Xavier Léauté 5a48376788 add postgresql setup docs 2015-08-21 13:35:58 -07:00
fjy 43978eba99 Fixes and more docs across many areas 2015-08-13 10:35:53 -07:00
kete.yangkt 2b2bba8d59 fix realtime index task json description in doc 2015-07-31 13:59:58 +08:00
Charles Allen b9359b7531 Add convert.md to document conversion task 2015-07-24 17:37:49 -07:00
Tim 3b692fb6f7 fix #1525 - typo: "HadoopBatchIndexer" 2015-07-14 20:48:24 -07:00
fjy 42ac41d55e add more docs based on proposed wishlist 2015-07-02 17:46:08 -07:00
sahner 4ba34fe43d minor documentation fixes in Tasks.md, index.md, indexing-service.md 2015-06-19 17:09:53 -05:00
fjy 6744eb2889 Add more links for talks 2015-06-05 14:35:56 -07:00
fjy 74d8840414 Change tranquility links 2015-05-31 10:59:38 -07:00
Xavier Léauté d2346b6834 shorten links and file names 
* remove redundant parts in file names
* delete unsupported "Druid-Personal-Demo-Cluster"
 2015-05-29 20:55:42 -05:00
Himanshu Gupta 8edc2aaca3 renaming all *.md filenames to only have lowercase and dashes 
so that they are editable on case-insensitive os as well
 2015-05-29 20:55:42 -05:00