How does case insensitive find in MongoDB?

To use a case insensitive index on a collection with no default collation, create an index with a collation and set the strength parameter to 1 or 2 (see Collation for a detailed description of the strength parameter). You must specify the same collation at the query level in order to use the index-level collation.

Is MongoDB find case sensitive?

Mongo (current version 2.0. 0) doesn’t allow case-insensitive searches against indexed fields – see their documentation. For non-indexed fields, the regexes listed in the other answers should be fine.

Is Mongoose find case insensitive?

The username field is supposed to be unique. Mongoose will throw an error if this username already exists in the database. However, it is not case insensitive, which I need it to be.

How do I sort a case insensitive in MongoDB?

This means the only way to sort case insensitive currently is to actually create a specific “lower cased” field, copying the value (lower cased of course) of the sort field in question and sorting on that instead. The actual order of insertion would be maintained for any values resulting in the same key when converted.

How to make a case insensitive query in MongoDB?

Case insensitive search in Mongo? How to achieve case sensitive uniqueness and case insensitive search in MySQL? How to make a case-insensitive query in MongoDB? For a case-insensitive query, use regex in MongoDB. Let us create a collection with documents −

How to find documents ignoring case in mongoose?

When a user types a search like “pala” or “palá” or “Pala” or “PalÁ”, all those itens in [i] must build the result set. Ok, this approach is case insensitive and use the percent like logic from SQL (“%pala%”). But, it isn’t ignore accents from the register in database.

When to not use the regex operator in MongoDB?

You can remove the $regex operator from the previous find () method and instead utilize the newly created index: Do not use the $regex operator when using a case-insensitive index for your query. The $regex implementation is not collation-aware and cannot utilize case-insensitive indexes.

What to look for in a MongoDB query?

If you aren’t happy with the performance of a MongoDB database, there are a number of things to look at, such as: Number of open database connections. An obvious place to start is to check for long-running MongoDB queries, and queries that are executed frequently but aren’t optimised.