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From:Zardosht Kasheff Date:July 29 2011 7:50pm
Subject:handler::read_multi_range_XXX and HA_NEED_READ_RANGE_BUFFER
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Hello all,

In MySQL 5.1, I see that NDB exposes the HA_NEED_READ_RANGE_BUFFER
flag as a table flag, and the result is that the functions
handler::read_multi_range_first and handler::read_multi_range_next may
possibly use the buffer passed in somehow.

What is the contract here? How may the variable multi_range_buffer be
used if a handler exposes HA_NEED_READ_RANGE_BUFFER?

handler::read_multi_range_XXX and HA_NEED_READ_RANGE_BUFFERZardosht Kasheff29 Jul