Does Sphinx index capital letters as the beginning of a word? If so what setting can over-ride this?

Question

I just discovered an issue when searching for iOS as IOS and it wasn't found. So I tested on other words e.g Market. It is found by Market and MARKET and even MARKEt. Where it breaks is if I make any other letter caps, i..e Camel Case: mArket, 'MarKet', etc.

The only reason iOS works is it is in my config file. Is there a setting that can tell me to ignore this, I rarely care about intialization.

Answer 1

The 'default' charset_table is entirely case-insensitive (at least for English/ASCII!) http://sphinxsearch.com/docs/current/conf-charset-table.html

Suggests you've configured your charset_table such that it no longer making searches case insensitive. And/or not ascii characters (the case folding wont deal with extended chars)

And/or wonder if you have configured min_word_len, such not indexing 3 letter words? http://sphinxsearch.com/docs/current/conf-min-word-len.html