DBIndex constructor

DBIndex({ String? key, Map<String, dynamic>? keys, bool? unique, bool? sparse, bool? background, bool? dropDups, Map<String, dynamic>? partialFilterExpression, String? name, bool? modernReply, Map? collation, })

Creates a new database index configuration.

Parameters:

• key - Single field to index (cannot be used with keys)
• keys - Compound index field specification (cannot be used with key)
• unique - Enforce uniqueness constraint
• sparse - Create sparse index
• background - Build index in background
• dropDups - Drop duplicate documents (deprecated)
• partialFilterExpression - Filter for partial index
• name - Custom index name
• modernReply - Use modern reply format
• collation - Collation specification

Implementation

DBIndex({
  this.key,
  this.keys,
  this.unique,
  this.sparse,
  this.background,
  this.dropDups,
  this.partialFilterExpression,
  this.name,
  this.modernReply,
  this.collation,
});