Support for export specified tables from Cloud Spanner to Cloud Storage Avro template

[shashank-google]

Currently export dumps entire database. Can we modify this template to include tables argument as well ? Such that only specified tables are exported our from a particular database instance.

[kb]

This would be a nice addition!

We currently have an internal fork with customizations to exclude tables from a spanner to gcs export (avro format), which takes time to maintain and keep up to date with upstream changes. It would great if the spanner export/import templates supported a UDF to filter tables out of the archive.

[peterssonnick]

Based on recent commits, it looks like this feature has been developed:

• https://github.com/GoogleCloudPlatform/DataflowTemplates/commit/43aab86d5d043703d55dbddf6c57059945f01742

But it looks like it's currently not available for use. Any information on when this would be released?

[bvolpato]

As mentioned by @peterssonnick, this was already added. The support lagged a little bit due to the release taking a couple of days, but is already available.