2008-07-21 03:47:31 +07:00
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0.1
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- Created header class to handle attributes
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- Created relation class
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- Added union
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- Added intersection
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- Added difference
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- Added product
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- Added projection
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- Added rename
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- Projection can use a list or several parameters
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- Added selection
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- Added left join
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- Added right join
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- Added capability of operation even if attributes aren't in the same order
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- Added full outher join
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0.2
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- Created parser module
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- Created function to parse expression with operators without parameters
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2008-07-23 08:20:49 +07:00
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- Created recoursive function to parse expressions
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0.3
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2008-07-24 17:20:04 +07:00
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- Added support for parenthesis in relational queries
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0.4
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2008-08-08 07:41:16 +07:00
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- Created GUI
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0.5
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- Added support for float numbers
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