LtWorf
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5c9f4e63f4
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first stub of relational algebra to python converter
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@15 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-19 15:30:01 +07:00 |
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LtWorf
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b873d432b6
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renamed equijoin to thetajoin
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@12 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-17 22:53:32 +07:00 |
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LtWorf
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d91bafafda
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added equi-join
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@11 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-17 22:44:26 +07:00 |
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LtWorf
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7042bef744
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outer join added
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@10 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-17 22:39:58 +07:00 |
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LtWorf
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0c11969722
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changed fields to attributes
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@9 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-17 18:28:44 +07:00 |
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LtWorf
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350bd00967
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natural join and example to test it
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@8 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-16 13:42:02 +07:00 |
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LtWorf
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953ebc3d1e
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product should not generate duplicated items, removed check
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@7 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-16 08:38:50 +07:00 |
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LtWorf
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7d048cb399
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added selection
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@6 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-14 14:38:42 +07:00 |
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LtWorf
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7817d6adaf
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product avoids duplicated items
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@5 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-14 13:14:50 +07:00 |
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LtWorf
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82e551cce4
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preventing duplicated fields in projection
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@4 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-14 13:04:32 +07:00 |
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LtWorf
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1efc1dc3c7
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created repositor structure
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@3 014f5005-505e-4b48-8d0a-63407b615a7c
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2008-07-14 12:18:35 +07:00 |