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/* postgres can not */
select cast("2000-01-01,GMT" as tzdate) == tzdate("2000-01-01,GMT");
select cast("2000-01-01,GMT" as tzdate) < cast("2000-01-01" as date);
select cast("2000-01-01,GMT" as tzdate) <= tzdate("2000-01-01,GMT");
select cast("2000-01-01,GMT" as tzdate) > tzdate("2000-01-01,GMT");
select cast("2000-01-01,GMT" as tzdate) >= tzdate("2000-01-01,GMT");
select cast("2000-01-01,GMT" as tzdate) != tzdate("2000-01-01,GMT");
select tzdate("2000-01-01,GMT") == cast("2000-01-01,GMT" as tzdate);
select tzdate("2000-01-01,GMT") < cast("2000-01-01,GMT" as tzdate);
select tzdate("2000-01-01,GMT") <= cast("2000-01-01,GMT" as tzdate);
select tzdate("2000-01-01,GMT") > cast("2000-01-01,GMT" as tzdate);
select tzdate("2000-01-01,GMT") >= cast("2000-01-01,GMT" as tzdate);
select tzdate("2000-01-01,GMT") != cast("2000-01-01,GMT" as tzdate);
select cast("2000-01-01T12:00:00,GMT" as tzdatetime) == tzdatetime("2000-01-01T12:00:00,GMT");
select cast("2000-01-01T12:00:00,GMT" as tzdatetime) < tzdatetime("2000-01-01T12:00:00,GMT");
select cast("2000-01-01T12:00:00,GMT" as tzdatetime) <= tzdatetime("2000-01-01T12:00:00,GMT");
select cast("2000-01-01T12:00:00,GMT" as tzdatetime) > tzdatetime("2000-01-01T12:00:00,GMT");
select cast("2000-01-01T12:00:00,GMT" as tzdatetime) >= tzdatetime("2000-01-01T12:00:00,GMT");
select cast("2000-01-01T12:00:00,GMT" as tzdatetime) != tzdatetime("2000-01-01T12:00:00,GMT");
select tzdatetime("2000-01-01T12:00:00,GMT") == cast("2000-01-01T12:00:00,GMT" as tzdatetime);
select tzdatetime("2000-01-01T12:00:00,GMT") < cast("2000-01-01T12:00:00,GMT" as tzdatetime);
select tzdatetime("2000-01-01T12:00:00,GMT") <= cast("2000-01-01T12:00:00,GMT" as tzdatetime);
select tzdatetime("2000-01-01T12:00:00,GMT") > cast("2000-01-01T12:00:00,GMT" as tzdatetime);
select tzdatetime("2000-01-01T12:00:00,GMT") >= cast("2000-01-01T12:00:00,GMT" as tzdatetime);
select tzdatetime("2000-01-01T12:00:00,GMT") != cast("2000-01-01T12:00:00,GMT" as tzdatetime);
select cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp) == tztimestamp("2000-01-01T12:00:00.123456,GMT");
select cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp) < tztimestamp("2000-01-01T12:00:00.123456,GMT");
select cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp) <= tztimestamp("2000-01-01T12:00:00.123456,GMT");
select cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp) > tztimestamp("2000-01-01T12:00:00.123456,GMT");
select cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp) >= tztimestamp("2000-01-01T12:00:00.123456,GMT");
select cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp) != tztimestamp("2000-01-01T12:00:00.123456,GMT");
select tztimestamp("2000-01-01T12:00:00.123456,GMT") == cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp);
select tztimestamp("2000-01-01T12:00:00.123456,GMT") < cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp);
select tztimestamp("2000-01-01T12:00:00.123456,GMT") <= cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp);
select tztimestamp("2000-01-01T12:00:00.123456,GMT") > cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp);
select tztimestamp("2000-01-01T12:00:00.123456,GMT") >= cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp);
select tztimestamp("2000-01-01T12:00:00.123456,GMT") != cast("2000-01-01T12:00:00.123456,GMT" as tztimestamp);
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