IndexDefinition :: maxCount - Maximum number of entries in the index
The maximum number of entries in an index depends on the key length and the index type. Usually, the size for large indexes is not limited.
If the function is not called with a valid index definition it throws an exception.
Notes:
The maximum index size may differ from the maximum collection size, which had been defined for the collection.
Return value: Number of items ( int32 )
The value contains the number of items to be processed or stored in a collection.