sql_io.py: func_wrapper_exception_handler(): Use new sql_gen.merge_not_null() to try to ensure that NULL values are not folded (which would cause the concatenated values not to match up with the concatenated column names). Note that this adds a dependency on the db object, which callers must now provide.
sql_io.py: func_wrapper_exception_handler(): Use new sql_gen.merge_not_null() to try to ensure that NULL values are not folded (which would cause the concatenated values not to match up with the concatenated column names). Note that this adds a dependency on the db object, which callers must now provide.