/
zz_migration.0001_initial_schema.go
74 lines (64 loc) · 2.61 KB
/
zz_migration.0001_initial_schema.go
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package migrations
import (
"context"
"cloud.google.com/go/spanner"
"google.golang.org/genproto/googleapis/spanner/admin/database/v1"
)
const (
createNamespaceConfig = `CREATE TABLE namespace_config (
namespace STRING(1024),
serialized_config BYTES(MAX) NOT NULL,
timestamp TIMESTAMP NOT NULL OPTIONS (allow_commit_timestamp=true)
) PRIMARY KEY (namespace)`
createRelationTuple = `CREATE TABLE relation_tuple (
namespace STRING(1024) NOT NULL,
object_id STRING(1024) NOT NULL,
relation STRING(1024) NOT NULL,
userset_namespace STRING(1024) NOT NULL,
userset_object_id STRING(1024) NOT NULL,
userset_relation STRING(1024) NOT NULL,
timestamp TIMESTAMP NOT NULL OPTIONS (allow_commit_timestamp=true)
) PRIMARY KEY (namespace, object_id, relation, userset_namespace, userset_object_id, userset_relation)`
createSchemaVersion = `CREATE TABLE schema_version (
version_num STRING(1024) NOT NULL
) PRIMARY KEY (version_num)`
// TODO see if we can make the operation smaller
createChangelog = `CREATE TABLE changelog (
timestamp TIMESTAMP NOT NULL OPTIONS (allow_commit_timestamp=true),
uuid STRING(36) NOT NULL,
operation INT64,
namespace STRING(1024) NOT NULL,
object_id STRING(1024) NOT NULL,
relation STRING(1024) NOT NULL,
userset_namespace STRING(1024) NOT NULL,
userset_object_id STRING(1024) NOT NULL,
userset_relation STRING(1024) NOT NULL,
) PRIMARY KEY (timestamp, uuid, operation, namespace, object_id, relation, userset_namespace, userset_object_id, userset_relation)`
insertEmptyVersion = `INSERT INTO schema_version (version_num) VALUES ('')`
createReverseQueryIndex = `CREATE INDEX ix_relation_tuple_by_subject ON relation_tuple (userset_object_id, userset_namespace, userset_relation, namespace, relation)`
createReverseCheckIndex = `CREATE INDEX ix_relation_tuple_by_subject_relation ON relation_tuple (userset_namespace, userset_relation, namespace, relation)`
)
func init() {
if err := SpannerMigrations.Register("initial", "", func(ctx context.Context, w Wrapper) error {
updateOp, err := w.adminClient.UpdateDatabaseDdl(ctx, &database.UpdateDatabaseDdlRequest{
Database: w.client.DatabaseName(),
Statements: []string{
createNamespaceConfig,
createRelationTuple,
createSchemaVersion,
createChangelog,
createReverseQueryIndex,
createReverseCheckIndex,
},
})
if err != nil {
return err
}
return updateOp.Wait(ctx)
}, func(ctx context.Context, rwt *spanner.ReadWriteTransaction) error {
_, err := rwt.Update(ctx, spanner.NewStatement(insertEmptyVersion))
return err
}); err != nil {
panic("failed to register migration: " + err.Error())
}
}