Ankur, In 4.2, you can get some of the benefits of "XPath indexes" by using fields. You define a field to be a part of a document that includes some elements and excludes others. Then you can define a word-based index on that field (with different indexing options than the overall word index) and search on just that field, using cts:field-word-query().
In 5.0 (coming soon) we plan to extend the field capability to include cts:field-value-query() and (with a range index) cts:field-range-query(). So in 5.0 you can do a range query on, for example, price elements that appear under product but not under shipping ( the equivalent of //product/price ), or even price elements that appear under luxury products ( the equivalent of //product[@kind="luxury"]/price). Moving beyond 5.0, we're looking into ways that we might extend this further, possibly to a fully-fledged "XPath index" capability. Most XPath index implementations support a subset of full XPath, and that's one of the things we'll be looking at. If you have specific requirements around an XPath index, I'd very much like to chat off-list - could you send me a note? For others on this list - if you have specific XPaths you'd like to see resolved out of the index, please do send me examples / use cases. Thanks! - Steve B. Stephen Buxton Director, Product Management MarkLogic Corporation stephen.bux...@marklogic.com Phone: +1 650 655 2317 www.marklogic.com This e-mail and any accompanying attachments are confidential. The information is intended solely for the use of the individual to whom it is addressed. Any review, disclosure, copying, distribution, or use of this e-mail communication by others is strictly prohibited. If you are not the intended recipient, please notify us immediately by returning this message to the sender and delete all copies. Thank you for your cooperation. -----Original Message----- From: general-boun...@developer.marklogic.com [mailto:general-boun...@developer.marklogic.com] On Behalf Of Ankur Patwa Sent: Friday, September 23, 2011 9:16 AM To: General MarkLogic Developer Discussion Subject: [MarkLogic Dev General] xpath indices All, I've heard about being able to add xpath indices in addition to building node based indices. I am curious if its planned for 5.1. It would be great if it were. -Ankur NOTICE OF CONFIDENTIALITY: This electronic message, including attachments, is for the sole use of the named recipient and may contain confidential or privileged information protected by State of Tennessee and Federal regulations. Any unauthorized review, use, disclosure, copying or distribution is strictly prohibited. If you are not the intended recipient or have received this communication in error please contact the sender or email i...@icainformatics.com and destroy all copies of the original message. Thank you. _______________________________________________ General mailing list General@developer.marklogic.com http://developer.marklogic.com/mailman/listinfo/general _______________________________________________ General mailing list General@developer.marklogic.com http://developer.marklogic.com/mailman/listinfo/general
