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Subject: [OASIS Issue Tracker] Commented: (ODATA-139) New system query option $search for free-text search within an entity set

    [ http://tools.oasis-open.org/issues/browse/ODATA-139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=32739#action_32739 ] 

Michael Pizzo commented on ODATA-139:

Added grouping operator to [Protocol] and [URL Conventions].
Also added $search to query options available within $expand, which I missed earlier.

> New system query option $search for free-text search within an entity set
> -------------------------------------------------------------------------
>                 Key: ODATA-139
>                 URL: http://tools.oasis-open.org/issues/browse/ODATA-139
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Improvement
>          Components: OData ABNF Construction Rules, OData Protocol , OData URL Conventions 
>    Affects Versions: V4.0_WD01
>         Environment: [Proposed]
>            Reporter: Ralf Handl
>            Assignee: Michael Pizzo
>             Fix For: V4.0_WD01
> Searching a list of entries by entering a free-text search phrase in a single input field is a very common UI pattern in mobile and browser-based applications.
> Translating this (typically case-insensitive) search phrase into an OData filter string is cumbersome and error-prone.
> A better alternative is providing a specialized query option that takes a search term and allows the server to interpret this search term.
>     GET ~/Orders?$search=blue
> could return sales orders that somehow match the phrase "blue", without the client needing to specify where this phrase may occur. It even could appear in related entities, e.g. the description of one of the products ordered.
> This is comparable to Level 0 Conformance in CQL, see ODATA-3.

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