Purpose
Retrieve first row in index and return.
Synopsis
virtual int index_first
( |
buf); |
|
Description
This is the index_first method.
index_first() asks for the first key in the
index.
Called from opt_range.cc, opt_sum.cc, sql_handler.cc, and
sql_select.cc.
Parameters
Return Values
There are no return values.
Usage
Implementation depends on indexing method used.
Default Implementation
{ return HA_ERR_WRONG_COMMAND; }
