Elasticsearch will perform the write even if the document hasn't changed
unless you set ctx.op to "noop".
Beside the point: you should try using groovy scripting! Its a less funky
language and it seems to be more stable - like there aren't unexplained
scripting errors.
On Wed, Sep 24, 2014 at 11:06 AM, <euneve...@gmail.com> wrote:
> Hi
>
> I can append to a list as follows:
>
> PUT twitter/tweet/1
> {
> "list": [
> {
> "tweet_id": "1",
> "a": "b"
> },
> {
> "tweet_id": "123",
> "a": "f"
> }
> ]
> }
>
> POST twitter/tweet/1/_update
> {
> "script":
> "if (!ctx._source.list.contains(newfileinfo)){ctx._source.list +=
> newfileinfo}",
> "params": {"newfileinfo": {"tweet_id": "3", "a": "g"}}
> }
>
>
> When I run the second step above repeatedly the json : {"tweet_id": "3",
> "a": "g"} is not inserted which is correct.
>
> However the version keeps changing
> "_version": 2,
> "_version": 3,
> "_version": 4,
> "_version": 5,
> etc
>
> It is concerning me that the mvel:
> * "if (!ctx._source.list.contains(newfileinfo)) *{
>
> is not working (?)
>
> And the update is happening repeatedly and maybe what's happening is the
> fragment is overwriting the document each time?
>
> That would have performance implications ?
>
> Thanks.
>
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