mirror of
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fe24add743
* Provide backwards compatibility extension to name resolution of
coalesced columns. The patch allows such columns to be qualified
with a table (and db) name, as it is in 4.1.
Based on a patch from Monty.
* Adjusted tests accordingly to test both backwards compatible name
resolution of qualified columns, and ANSI-style resolution of
non-qualified columns.
For this, each affected test has two versions - one with qualified
columns, and one without.
mysql-test/include/ps_query.inc:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/bdb.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/innodb.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/join.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/join_nested.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/join_outer.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/null_key.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/order_by.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/ps_2myisam.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/ps_3innodb.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/ps_4heap.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/ps_5merge.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/ps_6bdb.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/ps_7ndb.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/select.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/subselect.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/r/type_ranges.result:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/bdb.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/innodb.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/join.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/join_nested.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/join_outer.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/null_key.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/order_by.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/select.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/subselect.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
mysql-test/t/type_ranges.test:
Put back old tests to test that coalesced columns of natural joins can be qualified.
sql/sql_base.cc:
* Applied Monty's patch for backwards compatible name resolution
of qualified columns. The idea is:
- When a column is qualified, search for the column in all
tables/views underlying each natural join. In this case
natural joins are *not* considered leaves.
- If a column is not qualified, then consider natural joins
as leaves, thus directly search the result columns of
natural joins.
* Simplified 'find_field_in_tables()' - unified two similar
loops into one.
sql/table.cc:
- Removed method & members not needed after Monty's patch.
sql/table.h:
- Removed method & members not needed after Monty's patch.
tests/mysql_client_test.c:
Put back old tests to test that coalesced columns of natural joins can be qualified.
804 lines
20 KiB
Plaintext
804 lines
20 KiB
Plaintext
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--disable_warnings
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DROP TABLE IF EXISTS t0,t1,t2,t3,t4,t5,t6,t7,t8,t9;
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--enable_warnings
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CREATE TABLE t0 (a int, b int, c int);
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CREATE TABLE t1 (a int, b int, c int);
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CREATE TABLE t2 (a int, b int, c int);
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CREATE TABLE t3 (a int, b int, c int);
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CREATE TABLE t4 (a int, b int, c int);
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CREATE TABLE t5 (a int, b int, c int);
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CREATE TABLE t6 (a int, b int, c int);
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CREATE TABLE t7 (a int, b int, c int);
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CREATE TABLE t8 (a int, b int, c int);
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CREATE TABLE t9 (a int, b int, c int);
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INSERT INTO t0 VALUES (1,1,0), (1,2,0), (2,2,0);
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INSERT INTO t1 VALUES (1,3,0), (2,2,0), (3,2,0);
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INSERT INTO t2 VALUES (3,3,0), (4,2,0), (5,3,0);
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INSERT INTO t3 VALUES (1,2,0), (2,2,0);
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INSERT INTO t4 VALUES (3,2,0), (4,2,0);
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INSERT INTO t5 VALUES (3,1,0), (2,2,0), (3,3,0);
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INSERT INTO t6 VALUES (3,2,0), (6,2,0), (6,1,0);
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INSERT INTO t7 VALUES (1,1,0), (2,2,0);
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INSERT INTO t8 VALUES (0,2,0), (1,2,0);
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INSERT INTO t9 VALUES (1,1,0), (1,2,0), (3,3,0);
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SELECT t2.a,t2.b
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FROM t2;
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SELECT t3.a,t3.b
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FROM t3;
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SELECT t4.a,t4.b
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FROM t4;
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SELECT t3.a,t3.b,t4.a,t4.b
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FROM t3,t4;
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
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FROM t2
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LEFT JOIN
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(t3, t4)
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ON t2.b=t4.b;
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
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FROM t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b;
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EXPLAIN EXTENDED
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
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FROM t2
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LEFT JOIN
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(t3, t4)
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ON t2.b=t4.b
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WHERE t3.a=1 OR t3.c IS NULL;
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
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FROM t2
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LEFT JOIN
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(t3, t4)
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ON t2.b=t4.b
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WHERE t3.a=1 OR t3.c IS NULL;
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
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FROM t2
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LEFT JOIN
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(t3, t4)
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ON t2.b=t4.b
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WHERE t3.a>1 OR t3.c IS NULL;
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SELECT t5.a,t5.b
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FROM t5;
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SELECT t3.a,t3.b,t4.a,t4.b,t5.a,t5.b
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FROM t3,t4,t5;
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b
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FROM t2
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LEFT JOIN
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(t3, t4, t5)
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ON t2.b=t4.b;
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EXPLAIN EXTENDED
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b
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FROM t2
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LEFT JOIN
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(t3, t4, t5)
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ON t2.b=t4.b
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WHERE t3.a>1 OR t3.c IS NULL;
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b
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FROM t2
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LEFT JOIN
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(t3, t4, t5)
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ON t2.b=t4.b
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WHERE t3.a>1 OR t3.c IS NULL;
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EXPLAIN EXTENDED
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b
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FROM t2
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LEFT JOIN
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(t3, t4, t5)
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ON t2.b=t4.b
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WHERE (t3.a>1 OR t3.c IS NULL) AND
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(t5.a<3 OR t5.c IS NULL);
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b
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FROM t2
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LEFT JOIN
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(t3, t4, t5)
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ON t2.b=t4.b
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WHERE (t3.a>1 OR t3.c IS NULL) AND
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(t5.a<3 OR t5.c IS NULL);
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SELECT t6.a,t6.b
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FROM t6;
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SELECT t7.a,t7.b
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FROM t7;
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SELECT t6.a,t6.b,t7.a,t7.b
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FROM t6,t7;
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SELECT t8.a,t8.b
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FROM t8;
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EXPLAIN EXTENDED
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SELECT t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM (t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10;
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SELECT t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM (t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10;
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SELECT t5.a,t5.b
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FROM t5;
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SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b;
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SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b AND
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(t8.a < 1 OR t8.c IS NULL);
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
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FROM t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b;
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
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t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b,
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t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b;
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SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
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t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b,
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t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b
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WHERE t2.a > 3 AND
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(t6.a < 6 OR t6.c IS NULL);
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SELECT t1.a,t1.b
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FROM t1;
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SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
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t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM t1
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LEFT JOIN
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(
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t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b,
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t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b
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)
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ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
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(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
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(t1.a != 2);
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SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
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t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM t1
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LEFT JOIN
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(
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t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b,
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t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b
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)
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ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
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(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
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(t1.a != 2)
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WHERE (t2.a >= 4 OR t2.c IS NULL);
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SELECT t0.a,t0.b
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FROM t0;
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EXPLAIN EXTENDED
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SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
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t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM t0,t1
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LEFT JOIN
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(
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t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b,
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t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b
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)
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ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
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(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
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(t1.a != 2)
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WHERE t0.a=1 AND
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t0.b=t1.b AND
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(t2.a >= 4 OR t2.c IS NULL);
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SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
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t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
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FROM t0,t1
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LEFT JOIN
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(
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t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b,
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t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b
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)
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ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
|
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(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
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(t1.a != 2)
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WHERE t0.a=1 AND
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t0.b=t1.b AND
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(t2.a >= 4 OR t2.c IS NULL);
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EXPLAIN EXTENDED
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SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
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t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
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FROM t0,t1
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LEFT JOIN
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(
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t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b,
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t5
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LEFT JOIN
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(
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b
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)
|
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ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
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(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
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(t1.a != 2),
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t9
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WHERE t0.a=1 AND
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t0.b=t1.b AND
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(t2.a >= 4 OR t2.c IS NULL) AND
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(t3.a < 5 OR t3.c IS NULL) AND
|
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(t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND
|
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(t5.a >=2 OR t5.c IS NULL) AND
|
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(t6.a >=4 OR t6.c IS NULL) AND
|
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(t7.a <= 2 OR t7.c IS NULL) AND
|
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(t8.a < 1 OR t8.c IS NULL) AND
|
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(t8.b=t9.b OR t8.c IS NULL) AND
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(t9.a=1);
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SELECT t9.a,t9.b
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FROM t9;
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SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
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t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
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FROM t0,t1
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LEFT JOIN
|
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(
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t2
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LEFT JOIN
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(t3, t4)
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ON t3.a=1 AND t2.b=t4.b,
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t5
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LEFT JOIN
|
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(
|
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(t6, t7)
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LEFT JOIN
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t8
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ON t7.b=t8.b AND t6.b < 10
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)
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ON t6.b >= 2 AND t5.b=t7.b
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)
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ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
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(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
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(t1.a != 2),
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t9
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WHERE t0.a=1 AND
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t0.b=t1.b AND
|
|
(t2.a >= 4 OR t2.c IS NULL) AND
|
|
(t3.a < 5 OR t3.c IS NULL) AND
|
|
(t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND
|
|
(t5.a >=2 OR t5.c IS NULL) AND
|
|
(t6.a >=4 OR t6.c IS NULL) AND
|
|
(t7.a <= 2 OR t7.c IS NULL) AND
|
|
(t8.a < 1 OR t8.c IS NULL) AND
|
|
(t8.b=t9.b OR t8.c IS NULL) AND
|
|
(t9.a=1);
|
|
|
|
SELECT t1.a,t1.b
|
|
FROM t1;
|
|
|
|
SELECT t2.a,t2.b
|
|
FROM t2;
|
|
|
|
SELECT t3.a,t3.b
|
|
FROM t3;
|
|
|
|
SELECT t2.a,t2.b,t3.a,t3.b
|
|
FROM t2
|
|
LEFT JOIN
|
|
t3
|
|
ON t2.b=t3.b;
|
|
|
|
SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b
|
|
FROM t1, t2
|
|
LEFT JOIN
|
|
t3
|
|
ON t2.b=t3.b
|
|
WHERE t1.a <= 2;
|
|
|
|
SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b
|
|
FROM t1, t3
|
|
RIGHT JOIN
|
|
t2
|
|
ON t2.b=t3.b
|
|
WHERE t1.a <= 2;
|
|
|
|
SELECT t3.a,t3.b,t4.a,t4.b
|
|
FROM t3,t4;
|
|
|
|
SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
|
|
FROM t2
|
|
LEFT JOIN
|
|
(t3, t4)
|
|
ON t3.a=1 AND t2.b=t4.b;
|
|
|
|
SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
|
|
FROM t1, t2
|
|
LEFT JOIN
|
|
(t3, t4)
|
|
ON t3.a=1 AND t2.b=t4.b
|
|
WHERE t1.a <= 2;
|
|
|
|
SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
|
|
FROM t1, (t3, t4)
|
|
RIGHT JOIN
|
|
t2
|
|
ON t3.a=1 AND t2.b=t4.b
|
|
WHERE t1.a <= 2;
|
|
|
|
SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
|
|
FROM t1, (t3, t4)
|
|
RIGHT JOIN
|
|
t2
|
|
ON t3.a=1 AND t2.b=t4.b
|
|
WHERE t1.a <= 2;
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
|
|
FROM t1, (t3, t4)
|
|
RIGHT JOIN
|
|
t2
|
|
ON t3.a=1 AND t2.b=t4.b
|
|
WHERE t1.a <= 2;
|
|
|
|
CREATE INDEX idx_b ON t2(b);
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
|
|
FROM (t3,t4)
|
|
LEFT JOIN
|
|
(t1,t2)
|
|
ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b;
|
|
|
|
SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
|
|
FROM (t3,t4)
|
|
LEFT JOIN
|
|
(t1,t2)
|
|
ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b;
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
|
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
|
FROM t0,t1
|
|
LEFT JOIN
|
|
(
|
|
t2
|
|
LEFT JOIN
|
|
(t3, t4)
|
|
ON t3.a=1 AND t2.b=t4.b,
|
|
t5
|
|
LEFT JOIN
|
|
(
|
|
(t6, t7)
|
|
LEFT JOIN
|
|
t8
|
|
ON t7.b=t8.b AND t6.b < 10
|
|
)
|
|
ON t6.b >= 2 AND t5.b=t7.b
|
|
)
|
|
ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
|
|
(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
|
|
(t1.a != 2),
|
|
t9
|
|
WHERE t0.a=1 AND
|
|
t0.b=t1.b AND
|
|
(t2.a >= 4 OR t2.c IS NULL) AND
|
|
(t3.a < 5 OR t3.c IS NULL) AND
|
|
(t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND
|
|
(t5.a >=2 OR t5.c IS NULL) AND
|
|
(t6.a >=4 OR t6.c IS NULL) AND
|
|
(t7.a <= 2 OR t7.c IS NULL) AND
|
|
(t8.a < 1 OR t8.c IS NULL) AND
|
|
(t8.b=t9.b OR t8.c IS NULL) AND
|
|
(t9.a=1);
|
|
|
|
CREATE INDEX idx_b ON t4(b);
|
|
CREATE INDEX idx_b ON t5(b);
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
|
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
|
FROM t0,t1
|
|
LEFT JOIN
|
|
(
|
|
t2
|
|
LEFT JOIN
|
|
(t3, t4)
|
|
ON t3.a=1 AND t2.b=t4.b,
|
|
t5
|
|
LEFT JOIN
|
|
(
|
|
(t6, t7)
|
|
LEFT JOIN
|
|
t8
|
|
ON t7.b=t8.b AND t6.b < 10
|
|
)
|
|
ON t6.b >= 2 AND t5.b=t7.b
|
|
)
|
|
ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
|
|
(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
|
|
(t1.a != 2),
|
|
t9
|
|
WHERE t0.a=1 AND
|
|
t0.b=t1.b AND
|
|
(t2.a >= 4 OR t2.c IS NULL) AND
|
|
(t3.a < 5 OR t3.c IS NULL) AND
|
|
(t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND
|
|
(t5.a >=2 OR t5.c IS NULL) AND
|
|
(t6.a >=4 OR t6.c IS NULL) AND
|
|
(t7.a <= 2 OR t7.c IS NULL) AND
|
|
(t8.a < 1 OR t8.c IS NULL) AND
|
|
(t8.b=t9.b OR t8.c IS NULL) AND
|
|
(t9.a=1);
|
|
|
|
CREATE INDEX idx_b ON t8(b);
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
|
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
|
FROM t0,t1
|
|
LEFT JOIN
|
|
(
|
|
t2
|
|
LEFT JOIN
|
|
(t3, t4)
|
|
ON t3.a=1 AND t2.b=t4.b,
|
|
t5
|
|
LEFT JOIN
|
|
(
|
|
(t6, t7)
|
|
LEFT JOIN
|
|
t8
|
|
ON t7.b=t8.b AND t6.b < 10
|
|
)
|
|
ON t6.b >= 2 AND t5.b=t7.b
|
|
)
|
|
ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
|
|
(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
|
|
(t1.a != 2),
|
|
t9
|
|
WHERE t0.a=1 AND
|
|
t0.b=t1.b AND
|
|
(t2.a >= 4 OR t2.c IS NULL) AND
|
|
(t3.a < 5 OR t3.c IS NULL) AND
|
|
(t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND
|
|
(t5.a >=2 OR t5.c IS NULL) AND
|
|
(t6.a >=4 OR t6.c IS NULL) AND
|
|
(t7.a <= 2 OR t7.c IS NULL) AND
|
|
(t8.a < 1 OR t8.c IS NULL) AND
|
|
(t8.b=t9.b OR t8.c IS NULL) AND
|
|
(t9.a=1);
|
|
|
|
CREATE INDEX idx_b ON t1(b);
|
|
CREATE INDEX idx_a ON t0(a);
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
|
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
|
FROM t0,t1
|
|
LEFT JOIN
|
|
(
|
|
t2
|
|
LEFT JOIN
|
|
(t3, t4)
|
|
ON t3.a=1 AND t2.b=t4.b,
|
|
t5
|
|
LEFT JOIN
|
|
(
|
|
(t6, t7)
|
|
LEFT JOIN
|
|
t8
|
|
ON t7.b=t8.b AND t6.b < 10
|
|
)
|
|
ON t6.b >= 2 AND t5.b=t7.b
|
|
)
|
|
ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
|
|
(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
|
|
(t1.a != 2),
|
|
t9
|
|
WHERE t0.a=1 AND
|
|
t0.b=t1.b AND
|
|
(t2.a >= 4 OR t2.c IS NULL) AND
|
|
(t3.a < 5 OR t3.c IS NULL) AND
|
|
(t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND
|
|
(t5.a >=2 OR t5.c IS NULL) AND
|
|
(t6.a >=4 OR t6.c IS NULL) AND
|
|
(t7.a <= 2 OR t7.c IS NULL) AND
|
|
(t8.a < 1 OR t8.c IS NULL) AND
|
|
(t8.b=t9.b OR t8.c IS NULL) AND
|
|
(t9.a=1);
|
|
|
|
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
|
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
|
FROM t0,t1
|
|
LEFT JOIN
|
|
(
|
|
t2
|
|
LEFT JOIN
|
|
(t3, t4)
|
|
ON t3.a=1 AND t2.b=t4.b,
|
|
t5
|
|
LEFT JOIN
|
|
(
|
|
(t6, t7)
|
|
LEFT JOIN
|
|
t8
|
|
ON t7.b=t8.b AND t6.b < 10
|
|
)
|
|
ON t6.b >= 2 AND t5.b=t7.b
|
|
)
|
|
ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND
|
|
(t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND
|
|
(t1.a != 2),
|
|
t9
|
|
WHERE t0.a=1 AND
|
|
t0.b=t1.b AND
|
|
(t2.a >= 4 OR t2.c IS NULL) AND
|
|
(t3.a < 5 OR t3.c IS NULL) AND
|
|
(t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND
|
|
(t5.a >=2 OR t5.c IS NULL) AND
|
|
(t6.a >=4 OR t6.c IS NULL) AND
|
|
(t7.a <= 2 OR t7.c IS NULL) AND
|
|
(t8.a < 1 OR t8.c IS NULL) AND
|
|
(t8.b=t9.b OR t8.c IS NULL) AND
|
|
(t9.a=1);
|
|
|
|
SELECT t2.a,t2.b
|
|
FROM t2;
|
|
|
|
SELECT t3.a,t3.b
|
|
FROM t3;
|
|
|
|
SELECT t2.a,t2.b,t3.a,t3.b
|
|
FROM t2 LEFT JOIN t3 ON t2.b=t3.b
|
|
WHERE t2.a = 4 OR (t2.a > 4 AND t3.a IS NULL);
|
|
|
|
SELECT t2.a,t2.b,t3.a,t3.b
|
|
FROM t2 LEFT JOIN (t3) ON t2.b=t3.b
|
|
WHERE t2.a = 4 OR (t2.a > 4 AND t3.a IS NULL);
|
|
|
|
ALTER TABLE t3
|
|
CHANGE COLUMN a a1 int,
|
|
CHANGE COLUMN c c1 int;
|
|
|
|
SELECT t2.a,t2.b,t3.a1,t3.b
|
|
FROM t2 LEFT JOIN t3 ON t2.b=t3.b
|
|
WHERE t2.a = 4 OR (t2.a > 4 AND t3.a1 IS NULL);
|
|
|
|
SELECT t2.a,t2.b,t3.a1,t3.b
|
|
FROM t2 NATURAL LEFT JOIN t3
|
|
WHERE t2.a = 4 OR (t2.a > 4 AND t3.a1 IS NULL);
|
|
|
|
DROP TABLE t0,t1,t2,t3,t4,t5,t6,t7,t8,t9;
|
|
|
|
CREATE TABLE t1 (a int);
|
|
CREATE TABLE t2 (a int);
|
|
CREATE TABLE t3 (a int);
|
|
|
|
INSERT INTO t1 VALUES (1);
|
|
INSERT INTO t2 VALUES (2);
|
|
INSERT INTO t3 VALUES (2);
|
|
INSERT INTO t1 VALUES (2);
|
|
|
|
#check proper syntax for nested outer joins
|
|
|
|
SELECT * FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON t2.a=t3.a) ON t1.a=t3.a;
|
|
|
|
#must be equivalent to:
|
|
|
|
SELECT * FROM t1 LEFT JOIN t2 LEFT JOIN t3 ON t2.a=t3.a ON t1.a=t3.a;
|
|
|
|
#check that everything is al right when all tables contain not more than 1 row
|
|
#(bug #4922)
|
|
|
|
DELETE FROM t1 WHERE a=2;
|
|
SELECT * FROM t1 LEFT JOIN t2 LEFT JOIN t3 ON t2.a=t3.a ON t1.a=t3.a;
|
|
DELETE FROM t2;
|
|
SELECT * FROM t1 LEFT JOIN t2 LEFT JOIN t3 ON t2.a=t3.a ON t1.a=t3.a;
|
|
|
|
DROP TABLE t1,t2,t3;
|
|
|
|
#on expression for a nested outer join does not depend on the outer table
|
|
#bug #4976
|
|
|
|
CREATE TABLE t1(a int, key (a));
|
|
CREATE TABLE t2(b int, key (b));
|
|
CREATE TABLE t3(c int, key (c));
|
|
|
|
INSERT INTO t1 VALUES (NULL), (0), (1), (2), (3), (4), (5), (6), (7), (8), (9),
|
|
(10), (11), (12), (13), (14), (15), (16), (17), (18), (19);
|
|
|
|
INSERT INTO t2 VALUES (NULL), (0), (1), (2), (3), (4), (5), (6), (7), (8), (9),
|
|
(10), (11), (12), (13), (14), (15), (16), (17), (18), (19);
|
|
|
|
INSERT INTO t3 VALUES (0), (1), (2), (3), (4), (5);
|
|
|
|
EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON c < 3 and b = c;
|
|
EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
|
|
SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
|
|
|
|
DELETE FROM t3;
|
|
EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
|
|
SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
|
|
|
|
DROP TABLE t1,t2,t3;
|
|
|
|
#
|
|
# Test for bug #11284: empty table in a nested left join
|
|
#
|
|
|
|
CREATE TABLE t1 (c11 int);
|
|
CREATE TABLE t2 (c21 int);
|
|
CREATE TABLE t3 (c31 int);
|
|
|
|
INSERT INTO t1 VALUES (4), (5);
|
|
|
|
SELECT * FROM t1 LEFT JOIN t2 ON c11=c21;
|
|
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON c11=c21;
|
|
|
|
SELECT * FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON c21=c31) ON c11=c21;
|
|
EXPLAIN SELECT * FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON c21=c31) ON c11=c21;
|
|
|
|
DROP TABLE t1,t2,t3;
|
|
|
|
#
|
|
# Bug #12154: creation of temp table for a query with nested outer join
|
|
#
|
|
|
|
CREATE TABLE t1 (goods int(12) NOT NULL, price varchar(128) NOT NULL);
|
|
INSERT INTO t1 VALUES (23, 2340), (26, 9900);
|
|
|
|
CREATE TABLE t2 (goods int(12), name varchar(50), shop char(2));
|
|
INSERT INTO t2 VALUES (23, 'as300', 'fr'), (26, 'as600', 'fr');
|
|
|
|
create table t3 (groupid int(12) NOT NULL, goodsid int(12) NOT NULL);
|
|
INSERT INTO t3 VALUES (3,23), (6,26);
|
|
|
|
CREATE TABLE t4 (groupid int(12));
|
|
INSERT INTO t4 VALUES (1), (2), (3), (4), (5), (6);
|
|
|
|
SELECT * FROM
|
|
(SELECT DISTINCT gl.groupid, gp.price
|
|
FROM t4 gl
|
|
LEFT JOIN
|
|
(t3 g INNER JOIN t2 p ON g.goodsid = p.goods
|
|
INNER JOIN t1 gp ON p.goods = gp.goods)
|
|
ON gl.groupid = g.groupid and p.shop = 'fr') t;
|
|
|
|
CREATE VIEW v1 AS
|
|
SELECT g.groupid groupid, p.goods goods,
|
|
p.name name, p.shop shop,
|
|
gp.price price
|
|
FROM t3 g INNER JOIN t2 p ON g.goodsid = p.goods
|
|
INNER JOIN t1 gp on p.goods = gp.goods;
|
|
|
|
CREATE VIEW v2 AS
|
|
SELECT DISTINCT g.groupid, fr.price
|
|
FROM t4 g
|
|
LEFT JOIN
|
|
v1 fr on g.groupid = fr.groupid and fr.shop = 'fr';
|
|
|
|
SELECT * FROM v2;
|
|
|
|
SELECT * FROM
|
|
(SELECT DISTINCT g.groupid, fr.price
|
|
FROM t4 g
|
|
LEFT JOIN
|
|
v1 fr on g.groupid = fr.groupid and fr.shop = 'fr') t;
|
|
|
|
DROP VIEW v1,v2;
|
|
DROP TABLE t1,t2,t3,t4;
|