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Merge MWL#121-124 DS-MRR support for key-ordered reads + MWL#128 BNL-Hash join

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This commit is contained in:
Sergey Petrunya
2010-11-01 20:43:02 +03:00
parent df32342102 6c15806b68
commit 7f059782d0
34 changed files with 2658 additions and 289 deletions
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15
sql/sql_join_cache.cc
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@@ -2571,6 +2571,7 @@ int JOIN_CACHE_HASHED::realloc_buffer()
return rc;
}
/*
Get maximum size of the additional space per record used for record keys
@@ -3811,6 +3812,7 @@ void JOIN_CACHE_BKA::read_next_candidate_for_match(uchar *rec_ptr)
int JOIN_CACHE_BKA::init()
{
int res;
bool check_only_first_match= join_tab->check_only_first_match();
RANGE_SEQ_IF rs_funcs= { bka_range_seq_init,
@@ -3821,11 +3823,18 @@ int JOIN_CACHE_BKA::init()
DBUG_ENTER("JOIN_CACHE_BKA::init");
if (!(join_tab_scan= new JOIN_TAB_SCAN_MRR(join, join_tab,
mrr_mode, rs_funcs)))
JOIN_TAB_SCAN_MRR *jsm;
if (!(join_tab_scan= jsm= new JOIN_TAB_SCAN_MRR(join, join_tab,
mrr_mode, rs_funcs)))
DBUG_RETURN(1);
DBUG_RETURN(JOIN_CACHE::init());
if ((res= JOIN_CACHE::init()))
DBUG_RETURN(res);
if (use_emb_key)
jsm->mrr_mode |= HA_MRR_MATERIALIZED_KEYS;
DBUG_RETURN(0);
}