: > a) What is the fieldType of the uniqueKey field in use? : > : : It is a textField
whoa... that's not normal .. what *exactly* does the fieldType declaration (with all analyzers) look like, and what does the <field/> declaration look like? you should really never use TextField for a uniqueKey ... it's possible, but incredibly tricky to get "right". Independent from that, "sorting" on a TextField doesn't always do what you might think (again: depending on the analysis in use) With a cursorMark you have other factors to consider: i bet what's happening is that the post-analysis terms for your docs result it duplicate values, so the cursorMark is skipping all docs that have hte same (post analysis) sort value ... this could also manifest itself in other weird ways, like trying to deleteById. Step #1: switch to using a simple StrField for your uniqueKey field and see if htat solves all your problems. -Hoss http://www.lucidworks.com/