Hi! Thanks, to You!
Yes I have to do . Now I solved that problem with rename the original table study to _study then create the new right structured table study , Insert into study (chilioid,...,...) SELECT * FROM _study; Ok not elegant but it works. Another questions: Can I change the physical order of the rows in a database? Is the order of a database under all circumstances the same? (in pg) That is essential for my further restruction of the database... Thanks a lot David
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