Wildcard Index
Using wildcard specifier($**) you are allowed to create multiple text indexes fields. Due to the wildcard text index MongoDB indexes each and every field that holds string data in all the documents present in the given collection.
Wildcard text index is useful for unstructured data where we don’t know which field contains string data or for ad-hoc query. It allowed searching text on all the fields that contain string data. Wild text index can be part of the compound index.
MongoDB Wildcard Index Example
Here, we create the text indexes using a wildcard specifier
db.studentsposts.createIndex( { "$**": "text" } )
Output:
Now, we will see all the indexes present in the studentsposts collection.
MongoDB Text Indexes
The MongoDB Text Indexes feature allows users to perform full-text searches on text fields in a collection efficiently. It supports text search queries, enabling users to search for specific words or phrases within text fields.
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