resource_bigquery_table schema evolution

[dlesco]

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Terraform Version

Affects head of main branch.

Affected Resource(s)

• google_bigquery_table

Terraform Configuration Files

# Copy-paste your Terraform configurations here.
#
# For large Terraform configs, please use a service like Dropbox and share a link to the ZIP file.
# For security, you can also encrypt the files using our GPG public key:
#    https://www.hashicorp.com/security
#
# If reproducing the bug involves modifying the config file (e.g., apply a config,
# change a value, apply the config again, see the bug), then please include both:
# * the version of the config before the change, and
# * the version of the config after the change.

Debug Output

Panic Output

Expected Behavior

The BigQuery API allows you to alter a table's schema, so that the data type is changed to a "Coercible Type": https://cloud.google.com/bigquery/docs/managing-table-schemas#change_a_columns_data_type

In terraform with this provider, we tried to change an INT64 to a NUMERIC field. According to the docs, this is a coercible type: https://cloud.google.com/bigquery/docs/reference/standard-sql/conversion_rules

Does not work with the Terraform provider.

However, we successfully did this schema update outside of Terraform.

Actual Behavior

Provider code does not allow you to change the type of an existing table field to a coercible type.

Steps to Reproduce

Important Factoids

References

[edwardmedia]

@dlesco can you provide a terraform config that shows what the problem is? Along with the debug log.

[edwardmedia]

@dlesco this looks like a new feature. Please file an enhancement instead. Closing this now

[github-actions[bot]]

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