Commit Graph

96 Commits

Author SHA1 Message Date
Adrien Grand e5be85d586 Aggs: Change the default `min_doc_count` to 0 on histograms.
The assumption is that gaps in histogram are generally undesirable, for instance
if you want to build a visualization from it. Additionally, we are building new
aggregations that require that there are no gaps to work correctly (eg.
derivatives).
2015-04-30 15:48:23 +02:00
Clinton Gormley 37ed61807f Docs: Updated the experimental annotations in the docs as follows:
* Removed the docs for `index.compound_format` and `index.compound_on_flush` - these are expert settings which should probably be removed (see https://github.com/elastic/elasticsearch/issues/10778)
* Removed the docs for `index.index_concurrency` - another expert setting
* Labelled the segments verbose output as experimental
* Marked the `compression`, `precision_threshold` and `rehash` options as experimental in the cardinality and percentile aggs
* Improved the experimental text on `significant_terms`, `execution_hint` in the terms agg, and `terminate_after` param on count and search
* Removed the experimental flag on the `geobounds` agg
* Marked the settings in the `merge` and `store` modules as experimental, rather than the modules themselves

Closes #10782
2015-04-26 18:49:15 +02:00
Clinton Gormley f1a0e2216a Docs: Mentioned script_id and script_file parameters across all aggs
Closes #10760
2015-04-26 17:30:38 +02:00
markharwood 63db34f649 New feature - Sampler aggregation used to limit any nested aggregations' processing to a sample of the top-scoring documents.
Optionally, a “diversify” setting can limit the number of collected matches that share a common value such as an "author".

Closes #8108
2015-04-21 10:22:05 +01:00
Adrien Grand f4d5914511 Docs: Warn about the fact that min_doc_count=0 might return terms that only belong to different types. 2015-04-21 00:57:57 +02:00
Clinton Gormley abc7de96ae Docs: Updated version annotations in master 2015-04-09 14:50:11 +02:00
Adrien Grand aecd9ac515 Aggregations: Speed up include/exclude in terms aggregations with regexps.
Today we check every regular expression eagerly against every possible term.
This can be very slow if you have lots of unique terms, and even the bottleneck
if your query is selective.

This commit switches to Lucene regular expressions instead of Java (not exactly
the same syntax yet most existing regular expressions should keep working) and
uses the same logic as RegExpQuery to intersect the regular expression with the
terms dictionary. I wrote a quick benchmark (in the PR) to make sure it made
things faster and the same request that took 750ms on master now takes 74ms with
this change.

Close #7526
2015-04-09 12:12:56 +02:00
olivier bourgain fb7cd2ea9a [DOCS] Adjusted geo_distance aggregation example
unit is not returned in the response, but we have key and an implicit from starting at 0 for the first bucket
2015-03-10 08:20:20 -07:00
olivier bourgain eaeddc6bd4 [DOCS] missing curly brace in ip_range aggregation example 2015-03-10 08:19:57 -07:00
Britta Weber 580728dfd6 significant terms: add scriptable significance heuristic
This commit adds scripting capability to significant_terms.
Custom heuristics can be implemented with a script that provides
parameters subset_freq, superset_freq,subset_size, superset_size.

closes #7850
2015-03-06 17:06:04 +01:00
Clinton Gormley e194fb3a07 Docs: Default distance unit in geo distance agg is metres, not km
Closes #9812
2015-02-28 01:45:29 +01:00
Colin Goodheart-Smithe 2520dc78ec [DOCS] added a note for the default shard_size value 2015-02-25 11:00:55 +00:00
markharwood 29b1902cfb New aggregations feature - “PercentageScore” heuristic for significant_terms aggregation provides simple “per-capita” type measures.
Closes #9720
2015-02-20 13:22:08 +00:00
Christoph Büscher 30fd70f07b Aggregations: Simplify time zone option in `date_histogram`
Removed the existing `pre_zone` and `post_zone` option in `date_histogram` in favor of
the simpler `time_zone` option. Previously, specifying different values for these could
lead to confusing scenarios where ES would return bucket keys that are not UTC.
Now `time_zone` is the only option setting, the calculation of date buckets to take place in the
preferred time zone, but after rounding converting the bucket key values back to UTC.

Closes #9062
Closes #9637
2015-02-16 16:54:06 +01:00
Christoph Büscher d2f852a274 Aggregations: Add 'offset' option to date_histogram, replacing 'pre_offset' and 'post_offset'
Add offset option to 'date_histogram' replacing and simplifying the previous 'pre_offset' and 'post_offset' options.
This change is part of a larger clean up task for `date_histogram` from issue #9062.
2015-02-09 14:03:28 +01:00
Adrien Grand 95f46f1212 Docs: Use the new experimental annotation.
We now have a very useful annotation to mark features or parameters as
experimental. Let's use it! This commit replaces some custom text warnings with
this annotation and adds this annotation to some existing features/parameters:
 - inner_hits (unreleased yet)
 - terminate_after (released in 1.4)
 - per-bucket doc count errors in the terms agg (released in 1.4)

I also tagged with this annotation settings which should either be not needed
(like the ability to evict entries from the filter cache based on time) or that
are too deep into the way that Elasticsearch works like the Directory
implementation or merge settings.

Close #9563
2015-02-05 15:29:45 +01:00
Christoph Büscher 44193e7ba5 Aggregations: Add 'offset' option to histogram aggregation
Histogram aggregation supports an 'offset' option to move bucket boundaries.
In a histogram with buckets of size X these can be moved from 0, X, 2X, 3X,...
by an offset value of Y to Y, X+Y, 2X+Y, 3X+Y... by using the 'offset' option.
The previous 'pre_offset' and 'post_offset' options are removed in favour of
the simplified 'offset' option.

Closes #9417
Closes #9505
2015-02-02 18:23:01 +01:00
Oliver e412dab63a Docs: Fix sample query
Closes #9472
2015-01-29 15:56:24 +01:00
Ryan Ernst 39b3613420 Fix date histogram docs grammar. 2014-12-23 10:19:55 -08:00
Clinton Gormley 88e06cba80 Update daterange-aggregation.asciidoc
Clarified the date-math expressions on date range aggregations

Closes #8703
2014-11-28 16:53:33 +01:00
David Pilato 43a1435d3b [Docs] fix consistency between examples 2014-11-27 20:29:34 +01:00
David Pilato 40f0e07db3 [Docs] Fix missing new line 2014-11-27 19:39:12 +01:00
David Pilato da27c2104a [Docs] Fix missing comma in mapping 2014-11-27 11:03:19 +01:00
Boaz Leskes 1e16375d04 Docs: Update execution hint docs for Significant terms agg
copied over the relevant pieces from the terms agg

Closes #8532
2014-11-18 20:54:26 +01:00
Veres Lajos 4059e4ac86 typo fixes - https://github.com/vlajos/misspell_fixer
Closes #8323
2014-11-08 18:55:57 +01:00
Clinton Gormley 08aa715d2e Update datehistogram-aggregation.asciidoc
Clarified use of fractional time units in the date histo agg.

Closes #7957
2014-11-08 17:49:34 +01:00
Adrien Grand 7ea490dfd1 Aggregations: Return the sum of the doc counts of other buckets.
This commit adds a new field to the response of the terms aggregation called
`sum_other_doc_count` which is equal to the sum of the doc counts of the buckets
that did not make it to the list of top buckets. It is typically useful to have
a sector called eg. `other` when using terms aggregations to build pie charts.

Example query and response:

```json
GET test/_search?search_type=count
{
  "aggs": {
    "colors": {
      "terms": {
        "field": "color",
        "size": 3
      }
    }
  }
}
```

```json
{
   [...],
   "aggregations": {
      "colors": {
         "doc_count_error_upper_bound": 0,
         "sum_other_doc_count": 4,
         "buckets": [
            {
               "key": "blue",
               "doc_count": 65
            },
            {
               "key": "red",
               "doc_count": 14
            },
            {
               "key": "brown",
               "doc_count": 3
            }
         ]
      }
   }
}
```

Close #8213
2014-10-27 12:11:26 +01:00
Andrew O'Brien 33097d901b Docs: Typo: s/by/be/
Closes #8114
2014-10-16 20:51:58 +02:00
Clinton Gormley cb00d4a542 Docs: Removed all the added/deprecated tags from 1.x 2014-09-26 21:04:42 +02:00
Jordan Snodgrass 6246aac9ab Docs: Indicate that the Children Aggregation is coming in 1.4.0 2014-09-17 09:22:02 +02:00
Colin Goodheart-Smithe d4e83df3b8 Aggregations: Adds ability to sort on multiple criteria
The terms aggregation can now support sorting on multiple criteria by replacing the sort object with an array or sort object whose order signifies the priority of the sort. The existing syntax for sorting on a single criteria also still works.

Contributes to #6917
Replaces #7588
2014-09-15 11:08:29 +01:00
markharwood 3c8f8cc090 Aggs enhancement - allow Include/Exclude clauses to use array of terms as alternative to a regex
Closes #6782
2014-09-12 15:28:03 +01:00
smayzak 65a0ca021d The description was incorrect
Looked like a copy and paste from another aggregation
2014-09-10 16:05:03 +02:00
smayzak 6416f5d3d0 Fixing some grammar 2014-09-10 16:05:03 +02:00
David Pilato 7fdd3651fa [docs] Fix typo: resonable - reasonable 2014-09-10 15:57:57 +02:00
Colin Goodheart-Smithe b127b52fd3 Revert "Aggregations: Adds ability to sort on multiple criteria"
This reverts commit bfedd11ffa.
2014-09-08 20:27:19 +01:00
Colin Goodheart-Smithe bfedd11ffa Aggregations: Adds ability to sort on multiple criteria
The terms aggregation can now support sorting on multiple criteria by replacing the sort object with an array or sort object whose order signifies the priority of the sort. The existing syntax for sorting on a single criteria also still works.

Contributes to #6917
2014-09-08 15:20:33 +01:00
Clinton Gormley 1bdf79e527 Docs: Added explanation of how to do multi-field terms agg
Closes #5100
2014-09-07 11:09:52 +02:00
Clinton Gormley a059a6574a Update reverse-nested-aggregation.asciidoc
Fixed reverse nested example

Closes #7463
2014-09-02 11:40:41 +01:00
Adrien Grand 8e1d3d56b3 Docs: Replace added[1.4.0] with coming[1.4.0] since 1.4 is not released yet. 2014-08-29 11:57:22 +02:00
Martijn van Groningen 383e64bd5c Aggregations: Add `children` bucket aggregator that is able to map buckets between parent types and child types using the already builtin parent/child support.
Closes #6936
2014-08-19 12:40:51 +02:00
Konrad Feldmeier 3b3e2ed5e9 Docs: Remove the 'Factor' paragraph to reflect #6490
The current implementation of 'date_histogram' does not understand
the `factor` parameter. Since the docs shouldn't raise false hopes,
I removed the section.

Closes #7277
2014-08-18 13:02:15 +02:00
Colin Goodheart-Smithe e6632ec63e [DOCS] fixed title for filters aggregation documentation 2014-08-07 08:37:43 +01:00
Clinton Gormley 7b0b315b71 Tidied up the filters agg docs and added a coming[] tag 2014-08-07 09:03:23 +02:00
Britta Weber a3cefd919e significant terms: add google normalized distance, add chi square
closes #6858
2014-08-04 08:15:26 +02:00
uboness 3c9c9f33e2 Aggregations Added Filters aggregation
A multi-bucket aggregation where multiple filters can be defined (each filter defines a bucket). The buckets will collect all the documents that match their associated filter.

This aggregation can be very useful when one wants to compare analytics between different criterias. It can also be accomplished using multiple definitions of the single filter aggregation, but here, the user will only need to define the sub-aggregations only once.

Closes #6118
2014-08-01 16:01:08 +01:00
Colin Goodheart-Smithe 655157c83a Aggregations: Added an option to show the upper bound of the error for the terms aggregation.
This is only applicable when the order is set to _count.  The upper bound of the error in the doc count is calculated by summing the doc count of the last term on each shard which did not return the term.  The implementation calculates the error by summing the doc count for the last term on each shard for which the term IS returned and then subtracts this value from the sum of the doc counts for the last term from ALL shards.

Closes #6696
2014-07-25 14:24:24 +01:00
Simon Willnauer 5bfea56457 [DOCS] move all coming tags to added in master 2014-07-23 16:37:19 +02:00
Adrien Grand abeefbddea Docs: Update documentation about execution hints for the terms aggregation. 2014-07-21 11:55:57 +02:00
Britta Weber 74927adced significant terms: infrastructure for changing easily the significance heuristic
This commit adds the infrastructure to allow pluging in different
measures for computing the significance of a term.
Significance measures can be provided externally by overriding

- SignificanceHeuristic
- SignificanceHeuristicBuilder
- SignificanceHeuristicParser

closes #6561
2014-07-14 11:00:50 +02:00