DRAFT of specification if Indexing By words for strings.

[Ruslan Zasukhin]

On 9/22/04 4:00 PM, "jda" <jda at his.com> wrote:

>> 
>> 
>> * So we should have something as:
>> 
>>     class IndexStrPrefs
>> 
>>     db.CreateIndexStrPrefs( name )      // error: name not unique
>> 
>>    
>>     IndexStrPrefs.name
>>     IndexStrPrefs.IgnoreLength
>>     IndexStrPrefs.IgnoreWordsCount
>> 
>>     IndexStrPrefs.AddWord( String )
>>     IndexStrPrefs.DeleteWord( String )
>>     IndexStrPrefs.DeleteAllWords
>> 
>> 
>>     Vstring.UseIndexPrefs( prefsName )
>> 
>> 
>> 
>> * after changes of prefs, EXISTED index must be rebuild.
>> 
>>    
>> * also it needs to invent how to store this in the .vdb file.
>>     I do not like idea of putting this into system tables.
>>     it can blow out number of records.
>>    
>> 
>>     Aha, no.
>> 
>>     we will make new element, and words we will store into ValueText field.
>>     in the format
>>             aaa bbbb ccc dddd eeee ...
>> 
>> 
>> Looks to be very flexible. And in future we will be able extend number of
>> options of parameters of IndexStrPrefs.
>> 
> 
> I think the ability to let developers specify certain index
> properties would be very powerful, and I'm sure that many other uses
> would be found for this (other than my issue about sorting). One
> minor point, since you would want this to be extensible, would be to
> name the methods something like this: .AddIgnoreWord,
> .DeleteIgnoreWord, and .DeleteAllIgnoreWords.

ok


> Thanks for delving into this so much...

We have plan this in any case for 2.0


-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
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e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

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