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Subject: [OASIS Issue Tracker] Commented: (CMIS-144) Full text search syntaxand semantics
[ http://tools.oasis-open.org/issues/browse/CMIS-144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=10195#action_10195 ]
Al Brown commented on CMIS-144:
-------------------------------
I think you are asking to clarify CONTAINS(foo) syntax. In particular whether or not a client can do 'foo AND bar', '+foo +bar', 'foo <NOT> bar', '+foo -bar' and the particular syntax a client can use to express:
AND
OR
NOT
as well as phrases. If we standardize the above behavior, we also need to add in a capability on level of support - simple/black box vs enhanced
I am not sure it is required at this point to support a standard contains syntax in 1.0. A lot of us implement FTS in a variety of ways - Autononmy/IDOL, Autonomy/Verity, Lucene, Omnifind, DB-specific FTS (DB2, Oracle, etc), FAST, etc.
The main use case I am aware of is a client wanting to use single keywords in contains() - e.g., contains(foo) rather than complex FTS queries. I do not think that warrants specifying the syntax for AND, OR, NOT, phrases in contains.
> Full text search syntax and semantics
> -------------------------------------
>
> Key: CMIS-144
> URL: http://tools.oasis-open.org/issues/browse/CMIS-144
> Project: OASIS Content Management Interoperability Services (CMIS) TC
> Issue Type: Bug
> Components: Domain Model
> Affects Versions: Draft 0.6
> Reporter: David Caruana
> Assignee: Ethan Gur-esh
>
> The text search expression is defined as a <character string literal> (as defined by SQL-92). However, the syntax and semantics of the full text search expression are repo specific.
> I remember there was some resistance to defining a 'lowest common denominator' full text search language, but I don't remember why.
> Given that we define SQL, and that query is a key use case, I think there's value in a deeper FTS definition.
> As a starting point, JCR provides minimal definition. I'm not sure we would need to much further than that to start with.
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