Allow format sort values of date fields #70357

dnhatn · 2021-03-13T03:29:46Z

If a search after request targets multiple indices and some of its sort field has type date in one index but date_nanos in other indices, then Elasticsearch won't interpret the search_after parameter correctly in every target index. The sort value of a date field by default is a long of milliseconds since the epoch while a date_nanos field is a long of nanoseconds.

This commit introduces the format parameter in the sort field so a sort value of a date or date_nanos will be formatted using a date format in a search response.

The below example illustrates how to use this new parameter.

{
    "query": {
        "match_all": {}
    },
    "sort": [
        {
            "timestamp": { 
                "order": "asc", 
                "format": "strict_date_optional_time_nanos" 
           }
        }
    ]
}

{
    "query": {
        "match_all": {}
    },
    "sort": [
        {
            "timestamp": { 
                "order": "asc",
                "format": "strict_date_optional_time_nanos" 
            }
        }
    ],
    "search_after": [
        "2015-01-01T12:10:30.123456789Z" // in `strict_date_optional_time_nanos` format 
    ]
}

Closes #69192

elasticmachine · 2021-03-13T19:01:56Z

Pinging @elastic/es-search (Team:Search)

dnhatn · 2021-03-13T20:21:33Z

@jrodewig Would you mind taking a look at the doc changes? Thank you!

jrodewig

LGTM. Thanks @dnhatn!

I left a couple of non-blocking suggestions that you can ignore if wanted.

docs/reference/search/search-your-data/sort-search-results.asciidoc

docs/reference/search/search-your-data/paginate-search-results.asciidoc

…iidoc Co-authored-by: James Rodewig <[email protected]>

….asciidoc Co-authored-by: James Rodewig <[email protected]>

dnhatn · 2021-03-15T15:14:21Z

@jrodewig Thanks for the quick review. I've integrated your suggestions. Both of them are great 👍.

dnhatn · 2021-03-15T15:41:17Z

@elasticmachine update branch

jimczi

I left one comment regarding the docs, LGTM otherwise.

docs/reference/search/search-your-data/paginate-search-results.asciidoc

server/src/main/java/org/elasticsearch/search/sort/FieldSortBuilder.java

jrodewig

Expanded docs LGTM. Thanks @dnhatn.

mayya-sharipova · 2021-03-16T15:54:25Z

server/src/internalClusterTest/java/org/elasticsearch/search/searchafter/SearchAfterIT.java

+
+        resp = client().prepareSearch("test")
+            .addSort(SortBuilders.fieldSort("start_date").setFormat("dd/MM/yyyy"))
+            .addSort(SortBuilders.fieldSort("end_date")) // it's okay as we use the default format, but the output does not format


Isn't there a requirement that searchAfter formats and formats in Sort should match?

Or it is ok because "yyyy-MM-dd" is a default formant for end_date?

Or it is ok because "yyyy-MM-dd" is a default formant for end_date?

This is okay because end_date has the format yyyy-MM-dd. I reworded this comment in 9c537d5.

Isn't there a requirement that searchAfter formats and formats in Sort should match?

The formats (specified by sort) will try to parse the search_after parameters. If the parameters do not conform, then we will fail the request as a bad request.

thanks for the clarifications, Nhat

mayya-sharipova

@dnhatn Thanks Nhat, excellent work! All the changes LGTM!

dnhatn · 2021-03-17T01:26:56Z

Thanks everyone :).

If a search after request targets multiple indices and some of its sort field has type `date` in one index but `date_nanos` in other indices, then Elasticsearch won't interpret the search_after parameter correctly in every target index. The sort value of a date field by default is a long of milliseconds since the epoch while a date_nanos field is a long of nanoseconds. This commit introduces the `format` parameter in the sort field so a sort value of a date or date_nanos will be formatted using a date format in a search response. The below example illustrates how to use this new parameter. ```js { "query": { "match_all": {} }, "sort": [ { "timestamp": { "order": "asc", "format": "strict_date_optional_time_nanos" } } ] } ``` ```js { "query": { "match_all": {} }, "sort": [ { "timestamp": { "order": "asc", "format": "strict_date_optional_time_nanos" } } ], "search_after": [ "2015-01-01T12:10:30.123456789Z" // in `strict_date_optional_time_nanos` format ] } ``` Closes elastic#69192

If a search after request targets multiple indices and some of its sort field has type `date` in one index but `date_nanos` in other indices, then Elasticsearch won't interpret the search_after parameter correctly in every target index. The sort value of a date field by default is a long of milliseconds since the epoch while a date_nanos field is a long of nanoseconds. This commit introduces the `format` parameter in the sort field so a sort value of a date or date_nanos will be formatted using a date format in a search response. The below example illustrates how to use this new parameter. ```js { "query": { "match_all": {} }, "sort": [ { "timestamp": { "order": "asc", "format": "strict_date_optional_time_nanos" } } ] } ``` ```js { "query": { "match_all": {} }, "sort": [ { "timestamp": { "order": "asc", "format": "strict_date_optional_time_nanos" } } ], "search_after": [ "2015-01-01T12:10:30.123456789Z" // in `strict_date_optional_time_nanos` format ] } ``` Closes #69192

Relates #70357

dnhatn mentioned this pull request Mar 13, 2021

Formatted sort values for search_after #69192

Closed

Allow format sort values of date fields

c1d7f75

dnhatn force-pushed the format-sort-values branch from 1093423 to c1d7f75 Compare March 13, 2021 19:00

dnhatn marked this pull request as ready for review March 13, 2021 19:01

dnhatn added the :Search/Search Search-related issues that do not fall into other categories label Mar 13, 2021

elasticmachine added the Team:Search Meta label for search team label Mar 13, 2021

dnhatn added >enhancement v8.0.0 v7.13.0 and removed Team:Search Meta label for search team labels Mar 13, 2021

dnhatn requested review from jimczi and mayya-sharipova March 13, 2021 19:02

jrodewig self-requested a review March 13, 2021 23:00

jrodewig approved these changes Mar 15, 2021

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dnhatn and others added 2 commits March 15, 2021 11:11

Update docs/reference/search/search-your-data/sort-search-results.asc…

7bc7e47

…iidoc Co-authored-by: James Rodewig <[email protected]>

Update docs/reference/search/search-your-data/paginate-search-results…

802d860

….asciidoc Co-authored-by: James Rodewig <[email protected]>

Merge branch 'master' into format-sort-values

e126e31

jimczi approved these changes Mar 16, 2021

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server/src/main/java/org/elasticsearch/search/sort/FieldSortBuilder.java Outdated Show resolved Hide resolved

dnhatn added 3 commits March 16, 2021 11:06

explain numeric type

ca1b1cd

make it public

3fa2ab6

Merge branch 'master' into format-sort-values

d766039

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mayya-sharipova reviewed Mar 16, 2021

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wording

9c537d5

dnhatn requested a review from mayya-sharipova March 16, 2021 17:43

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dnhatn merged commit 8b5aa84 into elastic:master Mar 17, 2021

dnhatn deleted the format-sort-values branch March 17, 2021 01:27

dnhatn added the backport pending label Mar 17, 2021

dnhatn added a commit that referenced this pull request Mar 21, 2021

Adjust wire compact version

fa51d3f

Relates #70357

dnhatn mentioned this pull request Mar 21, 2021

Allow format sort values of date fields #70606

Merged

dnhatn removed the backport pending label Mar 21, 2021

majagrubic mentioned this pull request Apr 13, 2021

[Discover] Sort option: Introduce format parameter elastic/kibana#96774

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stevejgordon mentioned this pull request Apr 21, 2021

7.13.0 Meta Ticket elastic/elasticsearch-net#5584

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jakelandis added v8.0.0-alpha1 and removed v8.0.0 labels Jul 26, 2021

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