Re: How to use the "eval" streaming expression?
This blog gets more specific with some of the ideas behind the eval expression: https://joelsolr.blogspot.com/2017/04/having-talk-with-solr-using-new-echo.html Joel Bernstein http://joelsolr.blogspot.com/ On Thu, Nov 19, 2020 at 12:21 PM Joel Bernstein wrote: > You could have a program that writes a Streaming Expression > programmatically then use eval to run it. You can also save Streaming > Expression data structures: tuple, list, array etc... and eval them into > live streams that can be iterated. > > > > > Joel Bernstein > http://joelsolr.blogspot.com/ > > > On Wed, Nov 18, 2020 at 7:49 PM ufuk yılmaz > wrote: > >> Hey, >> >> Can anyone give me an example on how can eval >> https://lucene.apache.org/solr/guide/8_4/stream-decorator-reference.html#eval >> be used? >> >> Docs says it allows to run streaming expressions those created on the >> fly, but I can’t wrap my head on how an expression can be created on the >> fly, maybe unless it was stored in a field in Solr? >> >> Best >> >> Sent from Mail for Windows 10 >> >>
Re: How to use the "eval" streaming expression?
You could have a program that writes a Streaming Expression programmatically then use eval to run it. You can also save Streaming Expression data structures: tuple, list, array etc... and eval them into live streams that can be iterated. Joel Bernstein http://joelsolr.blogspot.com/ On Wed, Nov 18, 2020 at 7:49 PM ufuk yılmaz wrote: > Hey, > > Can anyone give me an example on how can eval > https://lucene.apache.org/solr/guide/8_4/stream-decorator-reference.html#eval > be used? > > Docs says it allows to run streaming expressions those created on the fly, > but I can’t wrap my head on how an expression can be created on the fly, > maybe unless it was stored in a field in Solr? > > Best > > Sent from Mail for Windows 10 > >
How to use the "eval" streaming expression?
Hey, Can anyone give me an example on how can eval https://lucene.apache.org/solr/guide/8_4/stream-decorator-reference.html#eval be used? Docs says it allows to run streaming expressions those created on the fly, but I can’t wrap my head on how an expression can be created on the fly, maybe unless it was stored in a field in Solr? Best Sent from Mail for Windows 10
