CreateRangePartitionedTable.java

/*
 * Copyright 2020 Google LLC
 *
 * 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.bigquery;

// [START bigquery_create_table_range_partitioned]
import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Field;
import com.google.cloud.bigquery.RangePartitioning;
import com.google.cloud.bigquery.Schema;
import com.google.cloud.bigquery.StandardSQLTypeName;
import com.google.cloud.bigquery.StandardTableDefinition;
import com.google.cloud.bigquery.TableId;
import com.google.cloud.bigquery.TableInfo;

// Sample to create a range partitioned table
public class CreateRangePartitionedTable {

  public static void runCreateRangePartitionedTable() {
    // TODO(developer): Replace these variables before running the sample.
    String datasetName = "MY_DATASET_NAME";
    String tableName = "MY_TABLE_NAME";
    Schema schema =
        Schema.of(
            Field.of("integerField", StandardSQLTypeName.INT64),
            Field.of("stringField", StandardSQLTypeName.STRING),
            Field.of("booleanField", StandardSQLTypeName.BOOL),
            Field.of("dateField", StandardSQLTypeName.DATE));
    createRangePartitionedTable(datasetName, tableName, schema);
  }

  public static void createRangePartitionedTable(
      String datasetName, String tableName, Schema schema) {
    try {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();

      TableId tableId = TableId.of(datasetName, tableName);

      // Note: The field must be a top- level, NULLABLE/REQUIRED field.
      // The only supported type is INTEGER/INT64
      RangePartitioning partitioning =
          RangePartitioning.newBuilder()
              .setField("integerField")
              .setRange(
                  RangePartitioning.Range.newBuilder()
                      .setStart(1L)
                      .setInterval(2L)
                      .setEnd(10L)
                      .build())
              .build();

      StandardTableDefinition tableDefinition =
          StandardTableDefinition.newBuilder()
              .setSchema(schema)
              .setRangePartitioning(partitioning)
              .build();
      TableInfo tableInfo = TableInfo.newBuilder(tableId, tableDefinition).build();

      bigquery.create(tableInfo);
      System.out.println("Range partitioned table created successfully");
    } catch (BigQueryException e) {
      System.out.println("Range partitioned table was not created. \n" + e.toString());
    }
  }
}
// [END bigquery_create_table_range_partitioned]