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Fixed the problem of wrong identification of WITH tables defined in WITH clauses without RECURSIVE.

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Added test cases to check the fix.
Fixed the problem of wrong types of recursive tables when the type of anchor part does not coincide with the
type of recursive part.
Prevented usage of marerialization and subquery cache for subqueries with recursive references.
Introduced system variables 'max_recursion_level'.
Added a test case to test usage of this variable.
This commit is contained in:
Galina Shalygina
2016-05-24 21:29:52 +03:00
parent 0f7fe2a743
commit b4f1f42062
16 changed files with 493 additions and 143 deletions
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sql/sql_select.cc
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@ -865,6 +865,7 @@ JOIN::prepare(TABLE_LIST *tables_init,
select_lex->check_unrestricted_recursive(
thd->variables.only_standards_compliant_cte))
DBUG_RETURN(-1);
select_lex->check_subqueries_with_recursive_references();
int res= check_and_do_in_subquery_rewrites(this);