Allen <[EMAIL PROTECTED]> writes:
> SELECT count(*) from post where post_ts >= current_date - interval ?

This is not right, and never has been right, even though it may have
accidentally failed to fail with some client libraries.  Try
        CAST(? as interval)                     (SQL standard)
        ?::interval                             (Postgres-ism)

The "interval something" syntax is only legal when "something" is
a bare string literal.

                        regards, tom lane

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