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MDEV-26312: Record iter methods for JOIN_CACHE_BNL #2758

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MDEV-26312: Record iter methods for JOIN_CACHE_BNL #2758

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Commits on Sep 14, 2023

  1. MEV-26312: Record iter methods for JOIN_CACHE_BNL 

    This commit creates new public methods to iterate the join
cache. This is useful for engine condition pushdown in
remote storage engines. In addition to push the condition,
we can also push data to match rows during JOIN.
This avoids full table scan and hence full table read
over the network.

Signed-off-by: Eduardo Berrocal <[email protected]>
    @eberroca @LinuxJedi
    eberroca authored and LinuxJedi committed Sep 14, 2023
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