Hi all, offsets returned by CTX_DOC_TOKENS do not seem to be related to the text block as returned by CTX_DOC_FILTER.
I indexed the Oracle Text Reference manual (a pdf), and using 'Release' as a query term, I get:
CTX_DOC_FILTER (I replaced newlines by 'n'):
nnnnnnnnOracle® Text Referencennnn11g Release 2 (11.2) E24436-01nnnnAugust 2011nnnnnOracle Text Reference, 11g Release 2 (11.2) ....
Thanks Barbara. I couldn't figure out how useful is to offset into one of those many binary formats, while offsets into a filtered text can have several useful applications. Highlights do nearly that task, but unfortunately they do not apply to the entire document.