> 1. Modify the qf parameter directly by either adding the "_xx" language > suffix to each field in qf, or replacing the "xx" for any qf fields that > already have an "_xx" suffix. > 2. Have separate "qf_xx" parameters which are customized for specific > languages and then copy the language-specific "qf_xx" parameter to the main > qf parameter based on the language that is detected.
The mix I make there is a little more subtle. For this I need to remove the earlier query component and call it wrapped around. Anything that is not with a named field will have that multilingual expansion. To do this: I call the query parser with a wild default field, then perform the expansion on the expanded query for any term query that has the wild field, these become a disjunction of the languages detected of interest, each analyzed for their language. This is also a solution to perform exact/stemmed/phonetic fields, and, for example, prefer a match in the title to a match in the body. This assumes, of course, that these fields exist in each language (and that metaphone works, say, for German, for which no evidence exists yet). paul
