tree bd8337403bd4ebdece93555e3e338063778c3d04
parent dba8c2c195294739180b3e6865f8893eb808676e
author Eno Compton <enocom@google.com> 1540486848 -0600
committer Eno Compton <enocom@google.com> 1540505661 +0000

bigquery: Add support for removing an expiration

Prior to this change, calls to Update did not support removing a table's
expiration, even though the REST API supports such an operation.

Because the TableUpdateMetadata ExpirationTime field is a time.Time
value, rather than a pointer to a time.Time, we cannot pass in nil to
indicate the expiration time should be removed. Instead, this change
uses a sentinel value, the zero value time.Time minus one second, and
advises callers to use the NeverExpire variable added in this commit.

Fixes #1196.

Change-Id: Ib2cae9bc7744da75e86c62f8d476e78b6e8d6e73
Reviewed-on: https://code-review.googlesource.com/c/34631
Reviewed-by: Jean de Klerk <deklerk@google.com>