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23.16.11 Implementing the index_next() Method

The [custom-engine.html#custom-engine-api-reference-index_next index_next()] method is used for index scanning:

int ha_foo::index_next(byte * buf) 

The *buf parameter is populated with the row that corresponds to the next matching key value according to the internal cursor set by the storage engine during operations such as index_read() and index_first().


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