Pin pandas-gbq to latest version 0.3.1

[pyup-bot]

pandas-gbq is not pinned to a specific version.

I'm pinning it to the latest version 0.3.1 for now.

These links might come in handy: PyPI | Changelog | Repo

Changelog

0.3.1

• Fix an issue where Unicode couldn't be uploaded in Python 2 (issue 93)
• Add support for a passed schema in :func:to_gbq instead inferring the schema from the passed DataFrame with DataFrame.dtypes (issue 46)
• Fix an issue where a dataframe containing both integer and floating point columns could not be uploaded with to_gbq (issue 116)
• to_gbq now uses to_csv to avoid manually looping over rows in a dataframe (should result in faster table uploads) (issue 96)

0.3.0

PyPI release, Conda Forge release

• Use the google-cloud-bigquery library for API calls. The google-cloud-bigquery package is a new dependency, and dependencies on google-api-python-client and httplib2 are removed. See the installation guide for more details. (93)
• Structs and arrays are now named properly (23) and BigQuery functions like array_agg no longer run into errors during type conversion (22 ).
• :func:to_gbq now uses a load job instead of the streaming API. Remove StreamingInsertError class, as it is no longer used by :func:to_gbq. (7, 75 )

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖

[tnir]

Closed in favor of #85