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=====================================
MongoDB\\Model\\IndexInfo::isSparse()
=====================================
.. default-domain:: mongodb
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Definition
----------
.. phpmethod:: MongoDB\\Model\\IndexInfo::isSparse()
Return whether the index is a :manual:`sparse index </core/index-sparse>`.
This correlates with the ``sparse`` option for
:phpmethod:`MongoDB\\Collection::createIndex()`.
.. code-block:: php
function isSparse(): boolean
Return Values
-------------
A boolean indicating whether the index is a sparse index.
See Also
--------
- :phpmethod:`MongoDB\\Collection::createIndex()`
- :manual:`listIndexes </reference/command/listIndexes>` command reference in
the MongoDB manual
- :manual:`Sparse Indexes </core/index-sparse>` in the MongoDB manual