Tokenizer base configuration
You can choose among several different tokenizer base configurations:.
	You can choose among two tokenizer base configurations:
- Ngram with position: logNgramTokenizerPositionFactory
- Ngram without position: logNgramTokenizerFactory
The following example creates an Ngram tokenizer without positional relevance:
=> CREATE TRANSFORM FUNCTION v_txtindex.myNgramTokenizer 
   AS LANGUAGE 'C++' 
   NAME 'logNgramTokenizerFactory' 
   LIBRARY v_txtindex.logSearchLib NOT FENCED;