Index auto update

Hello,

I'm a little bit confused with indexes auto update mechanism. Having created a DB with UPDINDEX=true, and after inserting nodes, 'info database' shows : Indexes Up-to-date: false Text Index: ON Attribute Index: ON Full-Text Index: OFF

whereas UPDINDEX=true. After issuing 'optimize', Up-to-date come back to true and FT index to ON.

Does this mean index are not automatically updated if 'optimize' is not run?

I use BaseX73-20120528.232116.jar

Is there any comprehensive documentation about index update mechanism?

Thank-you, Gilles.

Hi Gilles,

our incremental update feature is still work-in-progress, which is we haven’t included it in all interfaces yet (e.g., the GUI). However, the existing functionality is well-tested and has proven to be stable. As the info command shows, text and attribute indexes will always be up-to-date. In the final version, the full-text index and database statistics will be updated, too (and the output will be less confusing).

Dimitar’s master thesis will give you in-depth information on how incremental updates work:

http://files.basex.org/publications/Popov%20%5b2012%5d,%20Advanced%20Storage%20Structures%20for%20Native%20Databases.pdf

Some more hints (which you’ve probably already seen) are given in our documentation:

http://docs.basex.org/wiki/Indexes#Value_Indexes http://docs.basex.org/wiki/Options#UPDINDEX

Best, Christian