Learning more than usual today J
"collation=URI" is an option on element-range-query(), but not on element-value-query(). Looks like creating an range index would be useful for elements which may have spaces or punctuation and need exact matching.. Thanks, Gary From: [email protected] [mailto:[email protected]] On Behalf Of Geert Josten Sent: Tuesday, February 28, 2017 2:28 PM To: MarkLogic Developer Discussion Subject: Re: [MarkLogic Dev General] hyphens and cts:element-value-query In defense of Andreas, Mary does write this too: "At the boundary, where you specify exact unstemmed value queries or exact range queries with a codepoint collation, the results will line up. For exact queries there are universal index entries for the value that include punctuation and whitespace, but we don't index those tokens otherwise." E.g. it might work if you select codepoint collation ("collation=http://marklogic.com/collation/codepoint";) together with the "exact" option. MarkLogic defaults to using its own root collation. From: <[email protected]> on behalf of James Kerr <[email protected]> Reply-To: MarkLogic Developer Discussion <[email protected]> Date: Tuesday, February 28, 2017 at 7:34 PM To: MarkLogic Developer Discussion <[email protected]> Subject: Re: [MarkLogic Dev General] hyphens and cts:element-value-query >From Mary's response: "Word tokens may be stemmed and punctuation and space tokens are not indexed" (emphasis my own). The fact that punctuation and space tokens are not indexed is why you cannot do punctuation-sensitive or whitespace-sensitive, unfiltered word or value queries. Depending on what you are trying to accomplish, custom tokenization (https://docs.marklogic.com/guide/search-dev/custom-tokenization) may be a good option for you. On a side note, can you share what you are doing for your predicate check? By adding a check like this, you are essentially just implementing your own filtered search so it's unclear what the benefit would be over just using the "filtered" search option. -James From: <[email protected]> on behalf of Gary Larsen <[email protected]> Reply-To: MarkLogic Developer Discussion <[email protected]> Date: Tuesday, February 28, 2017 at 1:12 PM To: 'MarkLogic Developer Discussion' <[email protected]> Subject: Re: [MarkLogic Dev General] hyphens and cts:element-value-query Geert and Andreas, Thanks for pointing out tokens vs. values that I wasn't understanding. Using 'filtered' in cts:search works, but I've always tried to avoid that for performance reasons. In this case I've added a predicate check in the result instead. But to Andreas's point, it seems that 'exact' or 'punctuation-sensitive' should be able to match, or maybe I'm not understanding the documentation for cts:element-value-query. If it did work I guess there would be extra work un-tokenizing? I using ML version 8.0-6 Thanks for any clarification, Gary From: [email protected] [mailto:[email protected]] On Behalf Of Andreas Hubmer Sent: Tuesday, February 28, 2017 8:23 AM To: MarkLogic Developer Discussion Subject: Re: [MarkLogic Dev General] hyphens and cts:element-value-query Hi Geert, As far as I know there are index entries for "exact" queries in the universal index, that include punctuation and whitespace. Thus, Gary's value queries should work unfiltered. There is an email by Mary Holstege supporting my assumption: http://developer.marklogic.com/pipermail/general/2013-March/012552.html Cheers, Andreas 2017-02-28 13:58 GMT+01:00 Geert Josten <[email protected]>: Hi Gary, Sounds like you are running an unfiltered search. Either enable filtering to get rid of false positives, or switch to using element-range-query (which requires a range index). Keep in mind that value-queries don't use range indexes (even if available), but rely on the universal index, which contains tokens, not values.. Cheers, Geert From: <[email protected]> on behalf of Gary Larsen <[email protected]> Reply-To: MarkLogic Developer Discussion <[email protected]> Date: Monday, February 27, 2017 at 10:01 PM To: 'General MarkLogic Developer Discussion' <[email protected]> Subject: [MarkLogic Dev General] hyphens and cts:element-value-query I'm trying to get this cts query to treat hyphens as text: cts:element-value-query(xs:QName(ename), 'value 1', 'exact') cts:element-value-query(xs:QName(ename), 'value-1', 'exact') Even though the ename value-1 does not exist a match is found. Thanks, Gary _______________________________________________ General mailing list [email protected] Manage your subscription at: http://developer.marklogic.com/mailman/listinfo/general
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