I agree, this should be fixed:
https://github.com/elasticsearch/elasticsearch/issues/9373
On 21 January 2015 at 14:27, Gordon Tillman <gor...@gmail.com> wrote:
> Thanks Martijn,
>
> That is what I have observed. But is is a regression from ES version
> 1.0.1 and before. And I can't find anything that even implies that `from`
> is not supported for a scroll search, except of course when
> `search_type=scan`.
>
> I would love to get support for that back into the product.
>
> --g
>
>
>
> On Wednesday, January 21, 2015 at 2:57:29 AM UTC-6, Martijn v Groningen
> wrote:
>>
>> Hi Gordon,
>>
>> This `from` is kind of ignored for scroll search. I don't remember why
>> that was the case, but it seems to me that scroll search can/should take
>> into account the `from` option during the first scroll search request.
>>
>> Martijn
>>
>> On 20 January 2015 at 23:33, Gordon Tillman <gor...@gmail.com> wrote:
>>
>>> Greetings All,
>>>
>>> I ran into an interesting issue when upgrading from ES version 1.0.1 to
>>> newer versions. In particular, I tested the following with versions 1.2.4,
>>> 1.3.4 and 1.4.2.
>>>
>>> *summary*
>>>
>>> When doing a normal scroll search (not one with a *search_type=scan*),
>>> it appears that the "from" parameter is being ignored.
>>>
>>>
>>> *example 1 (no scrolling, result is correct)*
>>>
>>> In this simplified example, only one document matches the supplied
>>> query, so with *from=1* no documents are returned.
>>>
>>> curl localhost:9200/hm-community-alias/FileInfo/_search?q=parents:
>>> c10ed0583104036a94e110f0a8b5fd7d4\&from=1
>>>
>>> *example 2 (with scrolling, incorrect result)*
>>>
>>> In this example, where we specify the same query and from parameters,
>>> but also specify a scroll parameter, we incorrectly get the single document
>>> returned from the query.
>>>
>>> curl localhost:9200/hm-community-alias/FileInfo/_search?q=parents:
>>> c10ed0583104036a94e110f0a8b5fd7d4\&from=1\&scroll=2s | json
>>>
>>> *notes*
>>>
>>>
>>> 1. Both of the above test cases work correctly in version 1.0.1
>>> 2. In newer versions (where example 2 fails), I noticed that the
>>> *from* value is not present in the data that was returned from the
>>> query.
>>>
>>>
>>> I understand with with a *search_type=scan, *this would be expected
>>> because sorting is disabled. Also, please note this is a greatly
>>> simplified query just for illustration purposes. I've attached a sample of
>>> an actual query at the bottom of this post, and *it does contain
>>> sorting specifications*.
>>>
>>> Is this a known issue or is this being done by design in the newer ES
>>> versions. A quick scan through the release notes was unrevealing.
>>>
>>> Many thanks for any insight!
>>>
>>> --g
>>>
>>> *sample of full query*
>>>
>>>
>>> {
>>> "sort": [
>>> {
>>> "_type": {
>>> "order": "asc",
>>> "ignore_unmapped": true
>>> }
>>> },
>>> {
>>> "name_lower": {
>>> "order": "asc",
>>> "ignore_unmapped": true
>>> }
>>> },
>>> {
>>> "dds_key": {
>>> "order": "asc",
>>> "ignore_unmapped": true
>>> }
>>> }
>>> ],
>>> "query": {
>>> "filtered": {
>>> "filter": {
>>> "and": [
>>> {
>>> "or": [
>>> {
>>> "term": {
>>> "parent": "
>>> c10ed0583104012f94e11ad0ac36f2aaf"
>>> }
>>> }
>>> ]
>>> },
>>> {
>>> "not": {
>>> "term": {
>>> "vcn": "DeleteMarker"
>>> }
>>> }
>>> },
>>> {
>>> "not": {
>>> "exists": {
>>> "field": "notfinalized"
>>> }
>>> }
>>> }
>>> ]
>>> },
>>> "query": {
>>> "match_all": {}
>>> }
>>> }
>>> },
>>> "from": 1,
>>> "size": 1000
>>> }
>>>
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>>
>>
>>
>> --
>> Met vriendelijke groet,
>>
>> Martijn van Groningen
>>
>
--
Met vriendelijke groet,
Martijn van Groningen
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