Mnesia Secondary Indexes

Tom McNulty <>
Tue Jul 21 21:14:15 CEST 2009


Hi all,

When adding an index to a table field, it appears to me (without  
looking at the source), that the indexing method is hash based. While  
this is optimal for fast secondary key lookups and join operations, it  
does not speed up range based queries.  After going through all  
available manuals, I'm quite certain it's not possible to use tree- 
based indexing on a field, but please correct me if I'm wrong.

My question finally, are there an plans to add tree-based indexing to  
mnesia? And in the meantime, are there any existing projects which  
hack on this support?

- Tom



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