Is there any way to disable the guessing of missing columns in a group-by (the feature added in 9.1)? I haven't found any option but I might not be searching for the right thing. http://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.1#SQL_and_PL.2FPgSQL_features
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Соглашаюсь с условиями обработки персональных данных