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2003-11-07 Bernhard Herzog <[email protected]> |
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Tweak the usage of the sqlite database to make common use cases |
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more responsive. In most cases copying the data to the sqlite |
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database takes so long that using sqlite doesn't have enough |
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advantages. |
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* Thuban/Model/transientdb.py (TransientTableBase.ValueRange): Add |
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comments about performance and query the min and max in separate |
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statements because only that way will indexes be used. |
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(TransientTableBase.UniqueValues): Add some comments about |
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performance. |
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(AutoTransientTable.ValueRange, AutoTransientTable.UniqueValues): |
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Do not copy the data to the transient DB but use the transient |
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copy if it exists. See the new comments for the performance trade |
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offs |
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* test/test_transientdb.py |
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(TestTransientTable.test_auto_transient_table): Make sure that the |
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data is copied to the transient database at some point. |
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2003-11-03 Bernhard Herzog <[email protected]> |
2003-11-03 Bernhard Herzog <[email protected]> |
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* Thuban/Model/data.py (ShapefileStore.ShapesInRegion): Bind some |
* Thuban/Model/data.py (ShapefileStore.ShapesInRegion): Bind some |
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