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[flink] support computing the changelog generated by compact during r…
…ead time. This is used when changelog producer is none, but CoreOptions#needLookup is true and the table is used as a dim table.
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49 changes: 49 additions & 0 deletions
49
...core/src/main/java/org/apache/paimon/table/source/snapshot/CompactionFollowUpScanner.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.paimon.table.source.snapshot; | ||
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| import org.apache.paimon.Snapshot; | ||
| import org.apache.paimon.table.source.ScanMode; | ||
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|
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| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
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| /** {@link FollowUpScanner} for read all changed files after compact. */ | ||
| public class CompactionFollowUpScanner implements FollowUpScanner { | ||
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| private static final Logger LOG = LoggerFactory.getLogger(CompactionFollowUpScanner.class); | ||
|
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| @Override | ||
| public boolean shouldScanSnapshot(Snapshot snapshot) { | ||
| if (snapshot.commitKind() == Snapshot.CommitKind.COMPACT) { | ||
| return true; | ||
| } | ||
|
|
||
| LOG.debug( | ||
| "Next snapshot id {} is not COMPACT, but is {}, check next one.", | ||
| snapshot.id(), | ||
| snapshot.commitKind()); | ||
| return false; | ||
| } | ||
|
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| @Override | ||
| public SnapshotReader.Plan scan(Snapshot snapshot, SnapshotReader snapshotReader) { | ||
| return snapshotReader.withMode(ScanMode.DELTA).withSnapshot(snapshot).readChanges(); | ||
| } | ||
| } |
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68 changes: 68 additions & 0 deletions
68
...ain/java/org/apache/paimon/table/source/splitread/IncrementalCompactDiffReadProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.apache.paimon.table.source.splitread; | ||
|
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| import org.apache.paimon.Snapshot; | ||
| import org.apache.paimon.data.InternalRow; | ||
| import org.apache.paimon.operation.MergeFileSplitRead; | ||
| import org.apache.paimon.operation.SplitRead; | ||
| import org.apache.paimon.table.source.DataSplit; | ||
| import org.apache.paimon.utils.LazyField; | ||
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| import java.util.function.Consumer; | ||
| import java.util.function.Supplier; | ||
|
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| /** A {@link SplitReadProvider} to streaming incremental diff read after compaction. */ | ||
| public class IncrementalCompactDiffReadProvider implements SplitReadProvider { | ||
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| private final LazyField<SplitRead<InternalRow>> splitRead; | ||
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| public IncrementalCompactDiffReadProvider( | ||
| Supplier<MergeFileSplitRead> supplier, | ||
| Consumer<SplitRead<InternalRow>> valuesAssigner) { | ||
| this.splitRead = | ||
| new LazyField<>( | ||
| () -> { | ||
| SplitRead<InternalRow> read = create(supplier); | ||
| valuesAssigner.accept(read); | ||
| return read; | ||
| }); | ||
| } | ||
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| private SplitRead<InternalRow> create(Supplier<MergeFileSplitRead> supplier) { | ||
| return new IncrementalCompactDiffSplitRead(supplier.get()); | ||
| } | ||
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| @Override | ||
| public boolean match(DataSplit split, boolean forceKeepDelete) { | ||
| return split.commitKind() == Snapshot.CommitKind.COMPACT | ||
| && !split.beforeFiles().isEmpty() | ||
| && split.isStreaming(); | ||
| } | ||
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| @Override | ||
| public boolean initialized() { | ||
| return splitRead.initialized(); | ||
| } | ||
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| @Override | ||
| public SplitRead<InternalRow> getOrCreate() { | ||
| return splitRead.get(); | ||
| } | ||
| } |
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