Scripts are not an alternative to write filters or queries, they are part of the filter or query computation. With scripts, you can access document fields and perform evaluations depending on one or more field values, for example, for custom scoring. Also, index term statistics can be accessed from scripts. Script results are passed back to the query processing.
Jörg On Wed, Jul 9, 2014 at 10:41 PM, Adrian <[email protected]> wrote: > Hi, > I'm curious how scripts work in ES. > I've created a simple script which checks if a field in a record is equal > to a certain value then return 1 otherwise return 0. I used > AbstractDoubleSearchScript as the super class for this script. > My records contains some a data field that is an int and a date field > (long) (some other ones too that I don't care too much yet) > > What I've noticed is that when I execute the script, each record in the ES > db goes through the script and is returned either w a score of 0 or 1. > What I would like to know is if it is possible to do a range query, say > given 2 date params, and select only the records that fall between those > dates to run through the script. > > I know how to do this with the API but not in script format. For example > this non script code works: > SearchRequestBuilder s = client.prepareSearch("posts") > > .setQuery(QueryBuilders.queryString(query).defaultField("post.body")) > .setSize(count) > .setFrom(start) > > .setFilter(FilterBuilders.rangeFilter("post.creationDate").from(interval.getStart.toString()).to(interval.getEnd.toString())) > .setFilter(FilterBuilders.existsFilter("userId")); > s.setSearchType(SearchType.DFS_QUERY_THEN_FETCH); > > But when extending AbstractDoubleSearchScript I have access only to a few > things like doc(), source(), fields(), lookup() and I'm not sure how to > filter records. > Also I can't find documentation on what these are ie: what is source() > other than a Map. > > Any help on filtering is greatly appreciated! > Thanks > > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/1673cee1-468e-462b-85a4-c8e45fa74156%40googlegroups.com > <https://groups.google.com/d/msgid/elasticsearch/1673cee1-468e-462b-85a4-c8e45fa74156%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHAVe3_M5%2BuWhoZW2fxwmZKsu%3DM3ELij-Q8Ef1X6wmXYA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
