Original summary

Case Sensitivity Mistake – i-İ

Original Description

Example data:

{ "_id" : ObjectId("562395d2f4ac61190f8b463a"), "category_name" : "İçme Suları ve Kaynak Suları", "category_name_en" : "Water - Bottled & Bulk" }

db.categories.find({category_name:{ $regex: 'İçme', $options: 'i'}})
One result found. it is works well

However

When i swap capital İ with small i,i received no result.

db.categories.find({category_name:{ $regex: 'içme', $options: 'i'}})
no result.

The problem might be because of incompability of turkish characters .

King Regards ,