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Improve block_exists table lookup order (#1765)

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cryptocode 2019-02-22 18:31:24 +01:00 • committed by GitHub
commit 1b1b7f283c
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1 changed files with 3 additions and 2 deletions
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nano/node/lmdb.cpp
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@ -1709,13 +1709,14 @@ bool nano::mdb_store::block_exists (nano::transaction const & transaction_a, nan
bool nano::mdb_store::block_exists (nano::transaction const & tx_a, nano::block_hash const & hash_a) bool nano::mdb_store::block_exists (nano::transaction const & tx_a, nano::block_hash const & hash_a)
{ {
// Table lookups are ordered by match probability
// clang-format off // clang-format off
return return
block_exists (tx_a, nano::block_type::state, hash_a) ||
block_exists (tx_a, nano::block_type::send, hash_a) || block_exists (tx_a, nano::block_type::send, hash_a) ||
block_exists (tx_a, nano::block_type::receive, hash_a) || block_exists (tx_a, nano::block_type::receive, hash_a) ||
block_exists (tx_a, nano::block_type::open, hash_a) || block_exists (tx_a, nano::block_type::open, hash_a) ||
block_exists (tx_a, nano::block_type::change, hash_a) || block_exists (tx_a, nano::block_type::change, hash_a);
block_exists (tx_a, nano::block_type::state, hash_a);
// clang-format on // clang-format on
} }