Just started receiving the error below this week.  Error originally occurred when searching for text strings over 2 characters long, now happens on any search.  Assuming MySql related?  Any ideas?  Thank you.

Error number 4001 in 4: Error while parsing velocity page Main.WebSearch Wrapped Exception: Invocation of method 'searchDocuments' in class com.xpn.xwiki.api.XWiki threw exception class com.xpn.xwiki.XWikiException : Error number 3223 in 3: Exception while searching documents with sql , XWikiAttachment attach, XWikiAttachmentContent as attachc where doc.id = attach.docId and attach.id = attachc.id and attachc.content like '%cl%' Wrapped Exception: could not execute query