[jira] [Updated] (SOLR-6663) decide rules & syntax for computing stats/ranges/queries only at certain levels of a pivot

["Hoss Man (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-6663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hoss Man updated SOLR-6663:
---------------------------
    Attachment: SOLR-6663.patch

here's a really rough implementation + tests of a utility method for parsing out the tags.  Not covered here is good error msgs and the necessary changes to use this utility from the recursive doPivots()

> decide rules & syntax for computing stats/ranges/queries only at certain levels of a pivot
> ------------------------------------------------------------------------------------------
>
>                 Key: SOLR-6663
>                 URL: https://issues.apache.org/jira/browse/SOLR-6663
>             Project: Solr
>          Issue Type: Sub-task
>            Reporter: Hoss Man
>         Attachments: SOLR-6663.patch
>
>
> [~smolloy] asked a great question in SOLR-6351...
> bq. One more question around this, which applies for SOLR-6353 and SOLR-4212 as well. Should we have a syntax to apply stats/queries/ranges only at specific levels in the pivot hierarchy? It would reduce amount of computation and size of response for cases where you only need it at a specific level (usually last level I guess). 
> I'm splitting this off into it's own Sub-task for further discussion.
> ----
> For now, the "stats" localparam must be a single tag, and the "work around" is to add a common tag to all stats you want to use.
> ie, this will cause an error...
> {noformat}
> stats.field={!tag=tagA}price
> stats.field={!tag=tagB}popularity
> stats.field={!tag=tagB}clicks
> facet.pivot={!stats=tagA,tagB}xxx,yyy,zz
> {noformat}
> but this will work...
> {noformat}
> stats.field={!tag=tagA,tagPivot}price
> stats.field={!tag=tagB,tagPivot}popularity
> stats.field={!tag=tagB,tagPivot}clicks
> facet.pivot={!stats=tagPivot}xxx,yyy,zz
> {noformat}



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