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From "Yonik Seeley (JIRA)" <>
Subject [jira] [Commented] (SOLR-2444) Update fl syntax to support: pseudo fields, AS, transformers, and wildcards
Date Mon, 04 Apr 2011 17:54:05 GMT


Yonik Seeley commented on SOLR-2444:

>From the high level user perspective, a field and a function of fields both yield values.
I like that simplicity - it's the same type of simplicity we have in programming languages.

I can call foo(a,b), but instead of a variable(think fieldname) I can simply substitute another

I think this best matches people's expectations - directly specify what they want returned
in "fl", as they do today.  It's also less syntax to remember.  It's also consistent with
how we enable sort-by-function... anywhere a fieldname can be, a function can be substituted.
 It's also cleaner by default since a name is not required and the label that will be used
is the function itself.

bq. i vote for the colon

+1, I think that's the best option.

I think this is an independent issue from setting up transparent user selectable aliases/pseudofields
such that when a user puts "foo" in the field, they get the value but have no idea it came
from a source other than stored fields.

> Update fl syntax to support: pseudo fields, AS, transformers, and wildcards
> ---------------------------------------------------------------------------
>                 Key: SOLR-2444
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Ryan McKinley
>         Attachments: SOLR-2444-fl-parsing.patch, SOLR-2444-fl-parsing.patch
> The ReturnFields parsing needs to be improved.  It should also support wildcards

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