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authorOleksandr Byelkin <sanja@mariadb.com>2020-08-03 14:44:06 +0200
committerOleksandr Byelkin <sanja@mariadb.com>2020-08-03 14:44:06 +0200
commit57325e470615e79f674d82b2d5b09f609508fc6a (patch)
tree7a2e84a6753a5a5592f44f96194ad7a551c4669f /sql/item_subselect.h
parent706a7101bfacd29f4f5728034be92240e82df583 (diff)
parentc32f71af7e4b747de223bf6b44e691941f5997cf (diff)
downloadmariadb-git-57325e470615e79f674d82b2d5b09f609508fc6a.tar.gz
Merge branch '10.3' into 10.4
Diffstat (limited to 'sql/item_subselect.h')
-rw-r--r--sql/item_subselect.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/sql/item_subselect.h b/sql/item_subselect.h
index dc8417495c5..a3105bd99e0 100644
--- a/sql/item_subselect.h
+++ b/sql/item_subselect.h
@@ -568,7 +568,7 @@ public:
bool jtbm_const_row_found;
/*
- TRUE<=>this is a flattenable semi-join, false overwise.
+ TRUE<=>this is a flattenable semi-join, false otherwise.
*/
bool is_flattenable_semijoin;
@@ -993,7 +993,7 @@ class subselect_indexsubquery_engine: public subselect_uniquesubquery_engine
/* FALSE for 'ref', TRUE for 'ref-or-null'. */
bool check_null;
/*
- The "having" clause. This clause (further reffered to as "artificial
+ The "having" clause. This clause (further referred to as "artificial
having") was inserted by subquery transformation code. It contains
Item(s) that have a side-effect: they record whether the subquery has
produced a row with NULL certain components. We need to use it for cases
@@ -1014,7 +1014,7 @@ class subselect_indexsubquery_engine: public subselect_uniquesubquery_engine
However, subqueries like the above are currently not handled by index
lookup-based subquery engines, the engine applicability check misses
them: it doesn't switch the engine for case of artificial having and
- [eq_]ref access (only for artifical having + ref_or_null or no having).
+ [eq_]ref access (only for artificial having + ref_or_null or no having).
The above example subquery is handled as a full-blown SELECT with eq_ref
access to one table.
@@ -1085,7 +1085,7 @@ public:
*/
JOIN *materialize_join;
/*
- A conjunction of all the equality condtions between all pairs of expressions
+ A conjunction of all the equality conditions between all pairs of expressions
that are arguments of an IN predicate. We need these to post-filter some
IN results because index lookups sometimes match values that are actually
not equal to the search key in SQL terms.