In table 9-27 of the 9.2 docs: http://www.postgresql.org/docs/9.2/interactive/functions-datetime.html#FUNCTIONS-DATETIME-TABLE There is an entry for date_trunc(text, timestamp) but no entry for date_trunc(text, interval). The full docs for date_trunc: http://www.postgresql.org/docs/9.2/interactive/functions-datetime.html#FUNCTIONS-DATETIME-TRUNC do mention both the timestamp and interval forms of date_trunc but that's easy to miss if you're just scanning the functionlists. Eric Howe eric@pieinsky.ca http://pieinsky.ca/
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Соглашаюсь с условиями обработки персональных данных