diff --git a/samples/src/main/java/com/example/bigquery/CreatePartitionedTable.java b/samples/src/main/java/com/example/bigquery/CreatePartitionedTable.java index 21dcdbf13..79a15a801 100644 --- a/samples/src/main/java/com/example/bigquery/CreatePartitionedTable.java +++ b/samples/src/main/java/com/example/bigquery/CreatePartitionedTable.java @@ -50,8 +50,8 @@ public static void createPartitionedTable(String datasetName, String tableName) Schema schema = Schema.of( Field.of("stringField", StandardSQLTypeName.STRING), - Field.of("booleanField", StandardSQLTypeName.BOOL)); - Field.of("dateField", StandardSQLTypeName.DATE); + Field.of("booleanField", StandardSQLTypeName.BOOL), + Field.of("dateField", StandardSQLTypeName.DATE)); StandardTableDefinition tableDefinition = StandardTableDefinition.newBuilder() diff --git a/samples/src/main/java/com/example/bigquery/QueryClusteredTable.java b/samples/src/main/java/com/example/bigquery/QueryClusteredTable.java new file mode 100644 index 000000000..f02a56360 --- /dev/null +++ b/samples/src/main/java/com/example/bigquery/QueryClusteredTable.java @@ -0,0 +1,66 @@ +/* + * 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_query_clustered_table] +import com.google.cloud.bigquery.BigQuery; +import com.google.cloud.bigquery.BigQueryException; +import com.google.cloud.bigquery.BigQueryOptions; +import com.google.cloud.bigquery.QueryJobConfiguration; +import com.google.cloud.bigquery.TableResult; + +public class QueryClusteredTable { + + public static void runQueryClusteredTable() throws Exception { + // TODO(developer): Replace these variables before running the sample. + String projectId = "MY_PROJECT_ID"; + String datasetName = "MY_DATASET_NAME"; + String tableName = "MY_TABLE_NAME"; + queryClusteredTable(projectId, datasetName, tableName); + } + + public static void queryClusteredTable(String projectId, String datasetName, String tableName) { + 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(); + + String sourceTable = "`" + projectId + "." + datasetName + "." + tableName + "`"; + String query = + "SELECT word, word_count\n" + + "FROM " + + sourceTable + + "\n" + // Optimize query performance by filtering the clustered columns in sort order + + "WHERE corpus = 'romeoandjuliet'\n" + + "AND word_count >= 1"; + + QueryJobConfiguration queryConfig = QueryJobConfiguration.newBuilder(query).build(); + + TableResult results = bigquery.query(queryConfig); + + results + .iterateAll() + .forEach(row -> row.forEach(val -> System.out.printf("%s,", val.toString()))); + + System.out.println("Query clustered table performed successfully."); + } catch (BigQueryException | InterruptedException e) { + System.out.println("Query not performed \n" + e.toString()); + } + } +} +// [END bigquery_query_clustered_table] diff --git a/samples/src/test/java/com/example/bigquery/QueryClusteredTableIT.java b/samples/src/test/java/com/example/bigquery/QueryClusteredTableIT.java new file mode 100644 index 000000000..fc07c5db0 --- /dev/null +++ b/samples/src/test/java/com/example/bigquery/QueryClusteredTableIT.java @@ -0,0 +1,52 @@ +/* + * 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; + +import static com.google.common.truth.Truth.assertThat; + +import java.io.ByteArrayOutputStream; +import java.io.PrintStream; +import org.junit.After; +import org.junit.Before; +import org.junit.Test; + +public class QueryClusteredTableIT { + private ByteArrayOutputStream bout; + private PrintStream out; + + @Before + public void setUp() { + bout = new ByteArrayOutputStream(); + out = new PrintStream(bout); + System.setOut(out); + } + + @After + public void tearDown() { + System.setOut(null); + } + + @Test + public void queryClusteredTable() { + String projectId = "java-docs-samples-testing"; + String datasetName = "bigquery_test_dataset"; + String tableName = "clustered_shakespeare"; + + QueryClusteredTable.queryClusteredTable(projectId, datasetName, tableName); + assertThat(bout.toString()).contains("Query clustered table performed successfully."); + } +}