I don't think there is a substring or similar function. This would be quite nice to add along with other string manipulations.
Joel Bernstein http://joelsolr.blogspot.com/ On Wed, Oct 31, 2018 at 2:37 AM Aroop Ganguly <aroopgang...@icloud.com> wrote: > Hey Team > > > Is there a way to extract a part of a string field and group by on it and > obtain a histogram ? > > for example the filed value is DateTime of the form: 20180911T00 and > I want to do a substring like substring(field1,0,7), and then do a > streaming expression of the form : > > rollup( > select( > search(col1,fl=“field1”,sort=“field1 asc”), substring(field1,0,7) as > date) > ,on= date, count(*) > ) > > Is there a substring operator available or an alternate in streaming > expressions? > > Thanks > Aroop
