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Merge 10.3 into 10.4

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This commit is contained in:
Marko Mäkelä
2018-09-11 21:31:03 +03:00
parent f5bebaf1d6 4901f31c13
commit 1bf3e8ab43
299 changed files with 8442 additions and 1672 deletions
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26
sql/opt_range.cc
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@ -14829,6 +14829,32 @@ void QUICK_GROUP_MIN_MAX_SELECT::add_keys_and_lengths(String *key_names,
}
/* Check whether the number for equality ranges exceeds the set threshold */
bool eq_ranges_exceeds_limit(RANGE_SEQ_IF *seq, void *seq_init_param,
uint limit)
{
KEY_MULTI_RANGE range;
range_seq_t seq_it;
uint count = 0;
if (limit == 0)
{
/* 'Statistics instead of index dives' feature is turned off */
return false;
}
seq_it= seq->init(seq_init_param, 0, 0);
while (!seq->next(seq_it, &range))
{
if ((range.range_flag & EQ_RANGE) && !(range.range_flag & NULL_RANGE))
{
if (++count >= limit)
return true;
}
}
return false;
}
#ifndef DBUG_OFF
static void print_sel_tree(PARAM *param, SEL_TREE *tree, key_map *tree_map,