Igor Babaev b0395d8701 Fixed the bug mdev-12429 and its duplicates mdev-12145 and mdev-9886. ...

Also fixed a wrong result for a test case for mdev-7691
(the alternative one).
The test  cases for all these bug have materialized semi-joins used
inside dependent sub-queries.

The patch actually reverts the change inroduced by Monty in 2003.
It looks like this change is not valid anymore after the implementation
of semi-joins.
Adjusted output from EXPLAIN for many other test cases.

2017-04-04 10:04:52 -07:00

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