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Api: Track partition statistics via TableMetadata
Tracking `PartitionStatisticsFile` in a same way as how `StatisticsFile` is already tracked.
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api/src/main/java/org/apache/iceberg/PartitionStatisticsFile.java
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/* | ||
* Licensed to the Apache Software Foundation (ASF) under one | ||
* or more contributor license agreements. See the NOTICE file | ||
* distributed with this work for additional information | ||
* regarding copyright ownership. The ASF licenses this file | ||
* to you 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 org.apache.iceberg; | ||
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import java.io.Serializable; | ||
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/** | ||
* Represents a partition statistics file in the table default format, that can be used to read | ||
* table data more efficiently. | ||
* | ||
* <p>Statistics are informational. A reader can choose to ignore statistics information. Statistics | ||
* support is not required to read the table correctly. | ||
*/ | ||
public interface PartitionStatisticsFile extends Serializable { | ||
/** ID of the Iceberg table's snapshot the partition statistics file is associated with. */ | ||
long snapshotId(); | ||
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/** | ||
* Returns fully qualified path to the file, suitable for constructing a Hadoop Path. Never null. | ||
*/ | ||
String path(); | ||
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/** Returns the size of the partition statistics file in bytes. */ | ||
long fileSizeInBytes(); | ||
} |
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40 changes: 40 additions & 0 deletions
40
api/src/main/java/org/apache/iceberg/UpdatePartitionStatistics.java
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/* | ||
* Licensed to the Apache Software Foundation (ASF) under one | ||
* or more contributor license agreements. See the NOTICE file | ||
* distributed with this work for additional information | ||
* regarding copyright ownership. The ASF licenses this file | ||
* to you 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 org.apache.iceberg; | ||
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import java.util.List; | ||
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/** API for updating partition statistics files in a table. */ | ||
public interface UpdatePartitionStatistics extends PendingUpdate<List<PartitionStatisticsFile>> { | ||
/** | ||
* Set the table's partition statistics file for given snapshot, replacing the previous partition | ||
* statistics file for the snapshot if any exists. | ||
* | ||
* @return this for method chaining | ||
*/ | ||
UpdatePartitionStatistics setPartitionStatistics( | ||
long snapshotId, PartitionStatisticsFile partitionStatisticsFile); | ||
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/** | ||
* Remove the table's partition statistics file for given snapshot. | ||
* | ||
* @return this for method chaining | ||
*/ | ||
UpdatePartitionStatistics removePartitionStatistics(long snapshotId); | ||
} |
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core/src/main/java/org/apache/iceberg/GenericPartitionStatisticsFile.java
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/* | ||
* Licensed to the Apache Software Foundation (ASF) under one | ||
* or more contributor license agreements. See the NOTICE file | ||
* distributed with this work for additional information | ||
* regarding copyright ownership. The ASF licenses this file | ||
* to you 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 org.apache.iceberg; | ||
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import org.immutables.value.Value; | ||
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@Value.Immutable | ||
public interface GenericPartitionStatisticsFile extends PartitionStatisticsFile {} |
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