Add a note that one-way synonyms aren't supported in lucene indexes at the moment
@@ -778,6 +778,9 @@ Points to note
7. When defining synonyms:
* in the synonym file, lines like _plane, airplane, aircraft_ refer to tokens that are mutual synoyms whereas lines
like _plane => airplane_ refer to _one way_ synonyms, so that plane will be expanded to airplane but not vice versa
+ * continuing with the point above, since oak would use the same
+ analyzer for indexing as well as querying, using one-way synonyms in
+ any practical way is not supported at the moment.
* special characters have to be escaped
* multi word synonyms need particular attention (see https://lucidworks.com/2014/07/12/solution-for-multi-term-synonyms-in-lucenesolr-using-the-auto-phrasing-tokenfilter)
