Re: position-anchored queries

2019-03-21 Thread Michael Sokolov
Thanks Mikhail; I see SpanPositionRangeQuery, SpanFirstQuery, and thanks Adrien for confirming there is no max position. I have a legacy system that indexes anchor tokens at beginning and end, and am checking if there is a better approach. It seems as if we could get rid of the start token, but we

Re: position-anchored queries

2019-03-21 Thread Adrien Grand
We don't track of the maximum position per doc. One way to do ends-with queries would be to write a token filter that emits a special token at the end of the wrapped token stream and use it as the last token of a phrase query. On Thu, Mar 21, 2019 at 1:29 PM Michael Sokolov wrote: > > Hi, if I wa

Re: position-anchored queries

2019-03-21 Thread Mikhail Khludnev
Hello, Michael. I'm aware of in XML Query Parser. On Thu, Mar 21, 2019 at 3:29 PM Michael Sokolov wrote: > Hi, if I want to write a begins-with, ends-with, or exact-match style > query; like a phrase query, but anchored to the beginning of a field, the > end, or both, is there a generally-acce

position-anchored queries

2019-03-21 Thread Michael Sokolov
Hi, if I want to write a begins-with, ends-with, or exact-match style query; like a phrase query, but anchored to the beginning of a field, the end, or both, is there a generally-accepted best way? I can see how to maybe create a positional query that specifies the exact position for each term (at