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AddJsonbColumnSample.java
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AddJsonbColumnSample.java
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/*
* Copyright 2022 Google Inc.
*
* 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 com.example.spanner;
// [START spanner_postgresql_jsonb_add_column]
import com.google.api.gax.longrunning.OperationFuture;
import com.google.cloud.spanner.DatabaseAdminClient;
import com.google.cloud.spanner.Spanner;
import com.google.cloud.spanner.SpannerOptions;
import com.google.common.collect.ImmutableList;
import com.google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata;
import java.util.concurrent.ExecutionException;
class AddJsonbColumnSample {
static void addJsonbColumn() throws InterruptedException, ExecutionException {
// TODO(developer): Replace these variables before running the sample.
String projectId = "my-project";
String instanceId = "my-instance";
String databaseId = "my-database";
try (Spanner spanner =
SpannerOptions.newBuilder().setProjectId(projectId).build().getService()) {
DatabaseAdminClient adminClient = spanner.getDatabaseAdminClient();
addJsonbColumn(adminClient, instanceId, databaseId);
}
}
static void addJsonbColumn(DatabaseAdminClient adminClient, String instanceId, String databaseId)
throws InterruptedException, ExecutionException {
OperationFuture<Void, UpdateDatabaseDdlMetadata> operation =
adminClient.updateDatabaseDdl(
instanceId,
databaseId,
ImmutableList.of("ALTER TABLE Venues ADD COLUMN VenueDetails JSONB"),
null);
// Wait for the operation to finish.
// This will throw an ExecutionException if the operation fails.
operation.get();
System.out.printf("Successfully added column `VenueDetails`%n");
}
}
// [END spanner_postgresql_jsonb_add_column]