feat(bigquery): add QueryResultsFormat and ArrowSerializationOptions configurations

google-cloud-jar-parent/pom.xml

@@ -142,7 +142,7 @@
       <dependency>
         <groupId>com.google.apis</groupId>
         <artifactId>google-api-services-bigquery</artifactId>
-        <version>v2-rev20260612-2.0.0</version>
+        <version>v2-rev20260707-2.0.0</version>
       </dependency>
 
     </dependencies>

java-bigquery/google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/ArrowSerializationOptions.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright 2026 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.google.cloud.bigquery;
+
+import com.google.api.core.BetaApi;
+import java.io.Serializable;
+import java.util.Objects;
+
+/** Options specific to the Apache Arrow output format. */
+@BetaApi
+public final class ArrowSerializationOptions implements Serializable {
+
+  private static final long serialVersionUID = 1L;
+
+  private final String bufferCompression;
+  private final String picosTimestampPrecision;
+
+  private ArrowSerializationOptions(Builder builder) {
+    this.bufferCompression = builder.bufferCompression;
+    this.picosTimestampPrecision = builder.picosTimestampPrecision;
+  }
+
+  public String getBufferCompression() {
+    return bufferCompression;
+  }
+
+  public String getPicosTimestampPrecision() {
+    return picosTimestampPrecision;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  @Override
+  public String toString() {
+    return com.google.common.base.MoreObjects.toStringHelper(this)
+        .add("bufferCompression", bufferCompression)
+        .add("picosTimestampPrecision", picosTimestampPrecision)
+        .toString();
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ArrowSerializationOptions that = (ArrowSerializationOptions) o;
+    return Objects.equals(bufferCompression, that.bufferCompression)
+        && Objects.equals(picosTimestampPrecision, that.picosTimestampPrecision);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(bufferCompression, picosTimestampPrecision);
+  }
+
+  com.google.api.services.bigquery.model.ArrowSerializationOptions toPb() {
+    com.google.api.services.bigquery.model.ArrowSerializationOptions optionsPb =
+        new com.google.api.services.bigquery.model.ArrowSerializationOptions();
+    if (bufferCompression != null) {
+      optionsPb.setBufferCompression(bufferCompression);
+    }
+    if (picosTimestampPrecision != null) {
+      optionsPb.setPicosTimestampPrecision(picosTimestampPrecision);
+    }
+    return optionsPb;
+  }
+
+  static ArrowSerializationOptions fromPb(
+      com.google.api.services.bigquery.model.ArrowSerializationOptions optionsPb) {
+    if (optionsPb == null) {
+      return null;
+    }
+    return newBuilder()
+        .setBufferCompression(optionsPb.getBufferCompression())
+        .setPicosTimestampPrecision(optionsPb.getPicosTimestampPrecision())
+        .build();
+  }
+
+  public static final class Builder {
+    private String bufferCompression;
+    private String picosTimestampPrecision;
+
+    private Builder() {}
+
+    public Builder setBufferCompression(String bufferCompression) {
+      this.bufferCompression = bufferCompression;
+      return this;
+    }
+
+    public Builder setPicosTimestampPrecision(String picosTimestampPrecision) {
+      this.picosTimestampPrecision = picosTimestampPrecision;
+      return this;
+    }
+
+    public ArrowSerializationOptions build() {
+      return new ArrowSerializationOptions(this);
+    }
+  }
+}

java-bigquery/google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/QueryJobConfiguration.java

@@ -75,6 +75,8 @@ public final class QueryJobConfiguration extends JobConfiguration {
   private final Long maxResults;
   private final JobCreationMode jobCreationMode;
   private final String reservation;
+  private final QueryResultsFormat queryResultsFormat;
+  private final ArrowSerializationOptions arrowSerializationOptions;
 
   /**
    * Priority levels for a query. If not specified the priority is assumed to be {@link
@@ -144,6 +146,8 @@ public static final class Builder
     private Long maxResults;
     private JobCreationMode jobCreationMode;
     private String reservation;
+    private QueryResultsFormat queryResultsFormat;
+    private ArrowSerializationOptions arrowSerializationOptions;
 
     private Builder() {
       super(Type.QUERY);
@@ -181,6 +185,8 @@ private Builder(QueryJobConfiguration jobConfiguration) {
       this.maxResults = jobConfiguration.maxResults;
       this.jobCreationMode = jobConfiguration.jobCreationMode;
       this.reservation = jobConfiguration.reservation;
+      this.queryResultsFormat = jobConfiguration.queryResultsFormat;
+      this.arrowSerializationOptions = jobConfiguration.arrowSerializationOptions;
     }
 
     private Builder(com.google.api.services.bigquery.model.JobConfiguration configurationPb) {
@@ -701,6 +707,17 @@ public Builder setReservation(String reservation) {
       return this;
     }
 
+    public Builder setQueryResultsFormat(QueryResultsFormat queryResultsFormat) {
+      this.queryResultsFormat = queryResultsFormat;
+      return this;
+    }
+
+    public Builder setArrowSerializationOptions(
+        ArrowSerializationOptions arrowSerializationOptions) {
+      this.arrowSerializationOptions = arrowSerializationOptions;
+      return this;
+    }
+
     public QueryJobConfiguration build() {
       return new QueryJobConfiguration(this);
     }
@@ -747,6 +764,8 @@ private QueryJobConfiguration(Builder builder) {
     this.maxResults = builder.maxResults;
     this.jobCreationMode = builder.jobCreationMode;
     this.reservation = builder.reservation;
+    this.queryResultsFormat = builder.queryResultsFormat;
+    this.arrowSerializationOptions = builder.arrowSerializationOptions;
   }
 
   /**
@@ -973,6 +992,14 @@ public Builder toBuilder() {
     return new Builder(this);
   }
 
+  public QueryResultsFormat getQueryResultsFormat() {
+    return queryResultsFormat;
+  }
+
+  public ArrowSerializationOptions getArrowSerializationOptions() {
+    return arrowSerializationOptions;
+  }
+
   @Override
   ToStringHelper toStringHelper() {
     return super.toStringHelper()
@@ -1004,13 +1031,23 @@ ToStringHelper toStringHelper() {
         .add("rangePartitioning", rangePartitioning)
         .add("connectionProperties", connectionProperties)
         .add("jobCreationMode", jobCreationMode)
-        .add("reservation", reservation);
+        .add("reservation", reservation)
+        .add("queryResultsFormat", queryResultsFormat)
+        .add("arrowSerializationOptions", arrowSerializationOptions);
   }
 
   @Override
   public boolean equals(Object obj) {
-    return obj == this
-        || obj instanceof QueryJobConfiguration && baseEquals((QueryJobConfiguration) obj);
+    if (obj == this) {
+      return true;
+    }
+    if (obj == null || !(obj instanceof QueryJobConfiguration)) {
+      return false;
+    }
+    QueryJobConfiguration other = (QueryJobConfiguration) obj;
+    return baseEquals(other)
+        && Objects.equals(queryResultsFormat, other.queryResultsFormat)
+        && Objects.equals(arrowSerializationOptions, other.arrowSerializationOptions);
   }
 
   @Override
@@ -1043,7 +1080,9 @@ public int hashCode() {
         labels,
         rangePartitioning,
         connectionProperties,
-        reservation);
+        reservation,
+        queryResultsFormat,
+        arrowSerializationOptions);
   }
 
   @Override

java-bigquery/google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/QueryResultsFormat.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2026 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.google.cloud.bigquery;
+
+import com.google.api.core.BetaApi;
+
+/** The format of the query results. */
+@BetaApi
+public enum QueryResultsFormat {
+  /** Serialized row data in Apache Arrow format. */
+  ARROW,
+
+  /** Default encoding of results as JSON struct array. */
+  STRUCT_ENCODING
+}

java-bigquery/google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/QueryJobConfigurationTest.java

@@ -241,6 +241,35 @@ public void testJobCreationMode() {
         QUERY_JOB_CONFIGURATION_SET_JOB_CREATION_MODE.toBuilder().build());
   }
 
+  @Test
+  public void testArrowConfigurations() {
+    QueryResultsFormat format = QueryResultsFormat.ARROW;
+    ArrowSerializationOptions options =
+        ArrowSerializationOptions.newBuilder()
+            .setBufferCompression("LZ4")
+            .setPicosTimestampPrecision("PRECISION_MILLIS")
+            .build();
+    QueryJobConfiguration job =
+        QueryJobConfiguration.newBuilder(QUERY)
+            .setQueryResultsFormat(format)
+            .setArrowSerializationOptions(options)
+            .build();
+
+    assertEquals(format, job.getQueryResultsFormat());
+    assertEquals(options, job.getArrowSerializationOptions());
+
+    // Test toBuilder
+    QueryJobConfiguration copiedJob = job.toBuilder().build();
+    assertEquals(job, copiedJob);
+    assertEquals(format, copiedJob.getQueryResultsFormat());
+    assertEquals(options, copiedJob.getArrowSerializationOptions());
+
+    // Test toPb/fromPb (not preserved)
+    QueryJobConfiguration jobFromPb = QueryJobConfiguration.fromPb(job.toPb());
+    assertNull(jobFromPb.getQueryResultsFormat());
+    assertNull(jobFromPb.getArrowSerializationOptions());
+  }
+
   private void compareQueryJobConfiguration(
       QueryJobConfiguration expected, QueryJobConfiguration value) {
     assertEquals(expected, value);