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migrate/database/spanner/README.md
Christian Klotz 748ae8f06a Add Spanner driver 
Support for Google Cloud Spanner, closes #172. Includes example migrations ported over from the PostgreSQL driver.

In all examples provided by Google I’ve come across, camel-case is used for table names, columns, etc. Hence the examples use this naming convention.
2017-06-04 21:13:49 +01:00

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Google Cloud Spanner

Usage

The DSN must be given in the following format.

spanner://projects/{projectId}/instances/{instanceId}/databases/{databaseName}

See Google Spanner Documentation for details.

Param WithInstance Config Description
x-migrations-table MigrationsTable Name of the migrations table
url DatabaseName The full path to the Spanner database resource. If provided as part of Config it must not contain a scheme or query string to match the format projects/{projectId}/instances/{instanceId}/databases/{databaseName}
projectId The Google Cloud Platform project id
instanceId The id of the instance running Spanner
databaseName The name of the Spanner database

Note: Google Cloud Spanner migrations can take a considerable amount of time. The migrations provided as part of the example take about 6 minutes to run on a small instance.

1481574547/u create_users_table (21.354507597s)
1496539702/u add_city_to_users (41.647359754s)
1496601752/u add_index_on_user_emails (2m12.155787369s)
1496602638/u create_books_table (2m30.77299181s)