How to filter the results of content resolver in android?

Question

I would like to get user contacts and then append some kind of regular expression and append them to a list view. I am currently able to get all the contacts via

Answer 1

Actually REGEXP with Calllog Content Provider works (means that regexp() function is defined for that content provider's Database https://sqlite.org/lang_expr.html#regexp)! But it is very slow: ~15 sec across ~1750 records.

String regexp = "([\\s\\S]{0,}" + 
TextUtils.join("||[\\s\\S]{0,}", numbers) + 
")";

cursor = context.getContentResolver().query(
CallLog.Calls.CONTENT_URI, 
null, 
CallLog.Calls.NUMBER + " REGEXP ?", 
new String[]{regexp}, 
CallLog.Calls.DATE + " DESC"
);