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  • Committer: Andrew Hutchings
  • Date: 2010-09-08 19:03:09 UTC
  • mfrom: (1750 staging)
  • mto: (1750.1.1 build)
  • mto: This revision was merged to the branch mainline in revision 1751.
  • Revision ID: andrew@linuxjedi.co.uk-20100908190309-mya1nu7xvo1fpvk8
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tests/r/distinct.result
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SELECT DISTINCTROW email, shipcode FROM t1, t2 WHERE t1.infoID=t2.infoID;
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email   shipcode
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test1@testdomain.com    Z001
 
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test2@testdomain.com    R002
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test2@testdomain.com    Z001
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test2@testdomain.com    R002
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test3@testdomain.com    Z001
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SELECT DISTINCTROW email FROM t1 ORDER BY dateentered DESC;
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email
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EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2
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WHERE t1_1.a = t1_2.a;
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id      select_type     table   type    possible_keys   key     key_len ref     rows    Extra
 
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1       SIMPLE  t1_1    ALL     PRIMARY NULL    NULL    NULL    3       Using where; Using join buffer
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1       SIMPLE  t1_2    index   PRIMARY PRIMARY 4       NULL    3       Using index; Using temporary
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1       SIMPLE  t1_1    ALL     PRIMARY NULL    NULL    NULL    3       Using where; Using join buffer
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EXPLAIN SELECT a FROM t1 GROUP BY a;
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id      select_type     table   type    possible_keys   key     key_len ref     rows    Extra
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1       SIMPLE  t1      index   NULL    PRIMARY 4       NULL    3       Using index