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Counters for Index Condition Pushdown added (MDEV-130).

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unknown
2012-02-16 08:49:10 +02:00
parent 764eeeee74
commit 607aab9c1d
16 changed files with 181 additions and 6 deletions
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22
sql/sql_join_cache.cc
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@ -2576,6 +2576,15 @@ void JOIN_CACHE::print_explain_comment(String *str)
str->append(STRING_WITH_LEN(")"));
}
/**
get thread handle.
*/
THD *JOIN_CACHE::thd()
{
return join->thd;
}
static void add_mrr_explain_info(String *str, uint mrr_mode, handler *file)
{
@ -4015,7 +4024,11 @@ bool bka_skip_index_tuple(range_seq_t rseq, range_id_t range_info)
{
DBUG_ENTER("bka_skip_index_tuple");
JOIN_CACHE_BKA *cache= (JOIN_CACHE_BKA *) rseq;
bool res= cache->skip_index_tuple(range_info);
THD *thd= cache->thd();
bool res;
status_var_increment(thd->status_var.ha_pushed_index_cond_checks);
if ((res= cache->skip_index_tuple(range_info)))
status_var_increment(thd->status_var.ha_pushed_index_cond_filtered);
DBUG_RETURN(res);
}
@ -4490,7 +4503,12 @@ bool bkah_skip_index_tuple(range_seq_t rseq, range_id_t range_info)
{
DBUG_ENTER("bka_unique_skip_index_tuple");
JOIN_CACHE_BKAH *cache= (JOIN_CACHE_BKAH *) rseq;
DBUG_RETURN(cache->skip_index_tuple(range_info));
THD *thd= cache->thd();
bool res;
status_var_increment(thd->status_var.ha_pushed_index_cond_checks);
if ((res= cache->skip_index_tuple(range_info)))
status_var_increment(thd->status_var.ha_pushed_index_cond_filtered);
DBUG_RETURN(res);
}