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InstantDB: table constraints, prp file, alter table


Hi,

we had some problems concerning table constraints and schema
alteration statements using release 3_25 (so I don't know whether
they have been solved in the meantime):

- adding a column with an alter table would sometimes corrupt
the data.

- sometimes an alter table  would  not be  accepted, especially
if there have been alter table statements before.

- if the prp file is empty the result set resulting from a call to
 methods getPrimaryKeys() and getImportedKeys()
is null. Also, table constraints like unique(col1, col2) or
primary key (col1, col2) are not enforced in this case.

- if the prp file consists only of  the line  "relativeToProperties=1"
you get an sql error when trying to connect to the database. In
former releases such a prp file was possible.

Besides, it would be fine if table constraints were not only
addable but droppable as well.

Cheers
Otto







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