mirror of
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Merge pgalbraith@bk-internal.mysql.com:/home/bk/mysql-5.0
into radha.local:/Users/patg/mysql-5.0
This commit is contained in:
@ -906,9 +906,100 @@ INSERT INTO federated.t1 (name, country_id, other) VALUES ('Lenz', 2, 22222);
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INSERT INTO federated.t1 (name, country_id, other) VALUES ('Marizio', 3, 33333);
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INSERT INTO federated.t1 (name, country_id, other) VALUES ('Monty', 4, 33333);
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INSERT INTO federated.t1 (name, country_id, other) VALUES ('Sanja', 5, 33333);
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EXPLAIN SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1, federated.countries WHERE
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federated.t1.country_id = federated.countries.id;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE countries ALL PRIMARY NULL NULL NULL 5
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1 SIMPLE t1 ref country_id country_id 4 federated.countries.id 120
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SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1, federated.countries WHERE
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federated.t1.country_id = federated.countries.id;
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name country_id other country
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Kumar 1 11111 India
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Lenz 2 22222 Germany
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Marizio 3 33333 Italy
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Monty 4 33333 Finland
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Sanja 5 33333 Ukraine
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EXPLAIN SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1 INNER JOIN federated.countries ON
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federated.t1.country_id = federated.countries.id;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE countries ALL PRIMARY NULL NULL NULL 5
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1 SIMPLE t1 ref country_id country_id 4 federated.countries.id 120
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SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1 INNER JOIN federated.countries ON
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federated.t1.country_id = federated.countries.id;
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name country_id other country
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Kumar 1 11111 India
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Lenz 2 22222 Germany
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Marizio 3 33333 Italy
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Monty 4 33333 Finland
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Sanja 5 33333 Ukraine
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EXPLAIN SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1 INNER JOIN federated.countries ON
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federated.t1.country_id = federated.countries.id
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WHERE federated.t1.name = 'Monty';
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE countries ALL PRIMARY NULL NULL NULL 5
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1 SIMPLE t1 ref country_id country_id 4 federated.countries.id 120 Using where
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SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1 INNER JOIN federated.countries ON
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federated.t1.country_id = federated.countries.id
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WHERE federated.t1.name = 'Monty';
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name country_id other country
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Monty 4 33333 Finland
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EXPLAIN SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 LEFT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.countries.id;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 10000 Using temporary; Using filesort
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1 SIMPLE countries eq_ref PRIMARY PRIMARY 4 federated.t1.country_id 1
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SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 left join federated.countries
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ON federated.t1.country_id = federated.countries.id;
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FROM federated.t1 LEFT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.countries.id;
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id country_id name other country
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1 1 Kumar 11111 India
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2 2 Lenz 22222 Germany
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3 3 Marizio 33333 Italy
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4 4 Monty 33333 Finland
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5 5 Sanja 33333 Ukraine
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EXPLAIN SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 LEFT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.countries.country;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 10000 Using temporary; Using filesort
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1 SIMPLE countries eq_ref PRIMARY PRIMARY 4 federated.t1.country_id 1
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SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 LEFT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.countries.country;
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id country_id name other country
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4 4 Monty 33333 Finland
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2 2 Lenz 22222 Germany
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1 1 Kumar 11111 India
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3 3 Marizio 33333 Italy
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5 5 Sanja 33333 Ukraine
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EXPLAIN SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 RIGHT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.t1.country_id;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE countries ALL NULL NULL NULL NULL 5 Using temporary; Using filesort
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1 SIMPLE t1 ref country_id country_id 4 federated.countries.id 120
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SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 RIGHT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.t1.country_id;
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id country_id name other country
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1 1 Kumar 11111 India
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2 2 Lenz 22222 Germany
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@ -861,9 +861,70 @@ INSERT INTO federated.t1 (name, country_id, other) VALUES ('Marizio', 3, 33333);
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INSERT INTO federated.t1 (name, country_id, other) VALUES ('Monty', 4, 33333);
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INSERT INTO federated.t1 (name, country_id, other) VALUES ('Sanja', 5, 33333);
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#inner join
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EXPLAIN SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1, federated.countries WHERE
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federated.t1.country_id = federated.countries.id;
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SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1, federated.countries WHERE
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federated.t1.country_id = federated.countries.id;
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EXPLAIN SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1 INNER JOIN federated.countries ON
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federated.t1.country_id = federated.countries.id;
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SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1 INNER JOIN federated.countries ON
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federated.t1.country_id = federated.countries.id;
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EXPLAIN SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1 INNER JOIN federated.countries ON
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federated.t1.country_id = federated.countries.id
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WHERE federated.t1.name = 'Monty';
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SELECT federated.t1.name AS name, federated.t1.country_id AS country_id,
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federated.t1.other AS other, federated.countries.country AS country
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FROM federated.t1 INNER JOIN federated.countries ON
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federated.t1.country_id = federated.countries.id
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WHERE federated.t1.name = 'Monty';
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#left join
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EXPLAIN SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 LEFT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.countries.id;
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SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 left join federated.countries
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ON federated.t1.country_id = federated.countries.id;
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FROM federated.t1 LEFT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.countries.id;
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EXPLAIN SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 LEFT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.countries.country;
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SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 LEFT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.countries.country;
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#right join
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EXPLAIN SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 RIGHT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.t1.country_id;
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SELECT federated.t1.*, federated.countries.country
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FROM federated.t1 RIGHT JOIN federated.countries
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ON federated.t1.country_id = federated.countries.id
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ORDER BY federated.t1.country_id;
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DROP TABLE federated.countries;
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