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From Marvin Humphrey <>
Subject Re: Flexible index format / Payloads Cont'd
Date Thu, 20 Jul 2006 20:18:34 GMT

On Jul 19, 2006, at 10:26 AM, Nicolas Lalevée wrote:

> Then I looked deeper in the Lucene file format, and I manage to  
> introduce some
> generic field metadata without breaking the file format  
> compatibility. I just
> used another bit of the "Bits" to mark that there is or not some  
> metadata on
> the field. And the metadata is stored next to it :
> DocFieldData --> FieldCount, <FieldNum, Bits, FieldMetadata,  
> Value>^FieldCount
> FieldMetadata --> ValueSize, <Byte>^ValueSize

My thought is instead of providing an ever-lengthening fixed menu of  
field-types to choose from, that the menu should be per-index and the  
codec should be indicated by an integer pointing to a spot on that menu.

> Does this feature interest the Lucene commiters ? Should I provide  
> a patch in
> Jira? If not, is there any common place where to provide some patch  
> for some
> Lucene hackers (ie not necessaraily commiters) ?
> So, Marvin, could you provide your patch about payload ?

I'm totally slammed this month because I got a talk accepted at OSCON  
late and so I'm taking an unexpected week off in the midst of a very  
busy time.  There is not a patch per se, in any case.

> And is there a wiki page where there is a starting point about  
> defining the
> future index format ?


Marvin Humphrey
Rectangular Research

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