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Sergey Petrunya 2013-08-07 17:20:22 +04:00
parent 2404456608
commit 8e36dde7e1
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sql/sql_join_cache.h
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@ -69,6 +69,7 @@ class JOIN_TAB_SCAN;
- Block Nested Loop (BNL) Join Algorithm, - Block Nested Loop (BNL) Join Algorithm,
- Block Nested Loop Hash (BNLH) Join Algorithm, - Block Nested Loop Hash (BNLH) Join Algorithm,
- Batched Key Access (BKA) Join Algorithm. - Batched Key Access (BKA) Join Algorithm.
The first algorithm is supported by the derived class JOIN_CACHE_BNL, The first algorithm is supported by the derived class JOIN_CACHE_BNL,
the second algorithm is supported by the derived class JOIN_CACHE_BNLH, the second algorithm is supported by the derived class JOIN_CACHE_BNLH,
while the third algorithm is implemented in two variant supported by while the third algorithm is implemented in two variant supported by