feat: 迁移 PostgreSQL registry 所有权存储与恢复测试

internal/database/adapter/postgresql/registry/sql.go

@@ -0,0 +1,68 @@
+/*
+Copyright 2026.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package registry
+
+const claimStatement = `
+INSERT INTO postgresql_tenant_operator.tenant_ownership (
+    instance_uid,
+    tenant_uid,
+    tenant_namespace,
+    tenant_name,
+    database_name,
+    role_name,
+    credential_path
+) VALUES ($1, $2, $3, $4, $5, $6, $7)
+ON CONFLICT DO NOTHING
+RETURNING
+    instance_uid,
+    tenant_uid,
+    tenant_namespace,
+    tenant_name,
+    database_name,
+    role_name,
+    credential_path,
+    managed,
+    created_at,
+    updated_at,
+    retained_at`
+
+const getByTenantUIDStatement = `
+SELECT
+    instance_uid,
+    tenant_uid,
+    tenant_namespace,
+    tenant_name,
+    database_name,
+    role_name,
+    credential_path,
+    managed,
+    created_at,
+    updated_at,
+    retained_at
+FROM postgresql_tenant_operator.tenant_ownership
+WHERE instance_uid = $1 AND tenant_uid = $2`
+
+const getByTenantUIDForUpdateStatement = getByTenantUIDStatement + ` FOR UPDATE`
+
+const markRetainedStatement = `
+UPDATE postgresql_tenant_operator.tenant_ownership
+SET managed = false, retained_at = clock_timestamp(), updated_at = clock_timestamp()
+WHERE instance_uid = $1 AND tenant_uid = $2 AND managed = true`
+
+const deleteStatement = `
+DELETE FROM postgresql_tenant_operator.tenant_ownership
+WHERE instance_uid = $1 AND tenant_uid = $2 AND managed = true`