Timezone information is not passed from datetime objects through to ibis.literal

[cpcloud]

No description provided.

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Example

This works:

now_raw = dt.utcnow()
assert now_raw.tzinfo is None
assert ibis.literal(now_raw).type().timezone is None

This has an error in the final assertion:

now_utc = pytz.utc.localize(now_raw)
assert now_utc.tzinfo is not None
assert ibis.literal(now_utc).type().timezone is not None

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Another literal issue:

>>> client = ibis.bigquery.connect(etc)
>>> tab = client.table('example')
>>> tab.add_column(datetime.datetime.now(), 'test').compile()
"SELECT *, '2018-06-06 15:42:05' as `test`

Timestamp literals are not compiled as timestamps / datetimes in BQ.

[cpcloud]

Yep, I'm working on a patch for that issue.