addindex
Addindex is a term used in various software libraries to refer to a function or method that creates or registers an index on a dataset, collection, or table. It is not a standardized command, and the exact syntax, capabilities, and side effects depend on the specific library or framework being used. In general, an index is a data structure that maps key values to the locations of the corresponding records, enabling faster lookups, range queries, sorts, and joins.
The primary purpose of adding an index is to improve query performance for operations that search, filter,
In many APIs, addindex(target, spec, options) takes a target data structure, a specification of one or more
In SQL, the equivalent operation is CREATE INDEX, which defines an index on one or more columns.
Index, Database indexing, Create index, Unique constraint, Full-text index.