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[core] System files table distributed execute remold #4204

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Merged
merged 8 commits into from
Sep 23, 2024
Merged

[core] System files table distributed execute remold #4204

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[core] System files table distributed execute remould
leaves12138 Sep 18, 2024
aae1b66
fix comment
leaves12138 Sep 19, 2024
c8358d0
fix comment
leaves12138 Sep 19, 2024
c860495
fix comment
leaves12138 Sep 19, 2024
8b3ebcf
fix comment
leaves12138 Sep 23, 2024
0d38c1e
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leaves12138 Sep 23, 2024
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leaves12138 Sep 23, 2024
17b993e
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leaves12138 Sep 23, 2024
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71 changes: 42 additions & 29 deletions paimon-core/src/main/java/org/apache/paimon/table/system/FilesTable.java
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@

package org.apache.paimon.table.system;

import org.apache.paimon.data.BinaryRow;
import org.apache.paimon.data.BinaryString;
import org.apache.paimon.data.GenericRow;
import org.apache.paimon.data.InternalArray;
Expand Down Expand Up @@ -47,6 +48,7 @@
import org.apache.paimon.table.source.Split;
import org.apache.paimon.table.source.TableRead;
import org.apache.paimon.table.source.TableScan;
import org.apache.paimon.table.source.snapshot.SnapshotReader;
import org.apache.paimon.types.BigIntType;
import org.apache.paimon.types.DataField;
import org.apache.paimon.types.DataType;
Expand Down Expand Up @@ -75,6 +77,7 @@
import java.util.TreeMap;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;

import static org.apache.paimon.catalog.Catalog.SYSTEM_TABLE_SPLITTER;

Expand Down Expand Up @@ -134,7 +137,7 @@ public List<String> primaryKeys() {

@Override
public InnerTableScan newScan() {
return new FilesScan();
return new FilesScan(storeTable);
}

@Override
Expand All @@ -154,6 +157,12 @@ private static class FilesScan extends ReadOnceTableScan {
@Nullable private LeafPredicate bucketPredicate;
@Nullable private LeafPredicate levelPredicate;

private final FileStoreTable fileStoreTable;

public FilesScan(FileStoreTable fileStoreTable) {
this.fileStoreTable = fileStoreTable;
}

@Override
public InnerTableScan withFilter(Predicate pushdown) {
if (pushdown == null) {
Expand All @@ -170,23 +179,46 @@ public InnerTableScan withFilter(Predicate pushdown) {

@Override
public Plan innerPlan() {
SnapshotReader snapshotReader = fileStoreTable.newSnapshotReader();
if (partitionPredicate != null && partitionPredicate.function() instanceof Equal) {
String partitionStr = partitionPredicate.literals().get(0).toString();
if (partitionStr.startsWith("[")) {
partitionStr = partitionStr.substring(1);
}
if (partitionStr.endsWith("]")) {
partitionStr = partitionStr.substring(0, partitionStr.length() - 1);
}
String[] partFields = partitionStr.split(", ");
LinkedHashMap<String, String> partSpec = new LinkedHashMap<>();
List<String> partitionKeys = fileStoreTable.partitionKeys();
if (partitionKeys.size() != partFields.length) {
return Collections::emptyList;
}
for (int i = 0; i < partitionKeys.size(); i++) {
partSpec.put(partitionKeys.get(i), partFields[i]);
}
snapshotReader.withPartitionFilter(partSpec);
// TODO support range?
}

return () ->
Collections.singletonList(
new FilesSplit(partitionPredicate, bucketPredicate, levelPredicate));
snapshotReader.partitions().stream()
.map(p -> new FilesSplit(p, bucketPredicate, levelPredicate))
.collect(Collectors.toList());
}
}

private static class FilesSplit extends SingletonSplit {

@Nullable private final LeafPredicate partitionPredicate;
@Nullable private final BinaryRow partition;
@Nullable private final LeafPredicate bucketPredicate;
@Nullable private final LeafPredicate levelPredicate;

private FilesSplit(
@Nullable LeafPredicate partitionPredicate,
@Nullable BinaryRow partition,
@Nullable LeafPredicate bucketPredicate,
@Nullable LeafPredicate levelPredicate) {
this.partitionPredicate = partitionPredicate;
this.partition = partition;
this.bucketPredicate = bucketPredicate;
this.levelPredicate = levelPredicate;
}
Expand All @@ -200,14 +232,14 @@ public boolean equals(Object o) {
return false;
}
FilesSplit that = (FilesSplit) o;
return Objects.equals(partitionPredicate, that.partitionPredicate)
return Objects.equals(partition, that.partition)
&& Objects.equals(bucketPredicate, that.bucketPredicate)
&& Objects.equals(this.levelPredicate, that.levelPredicate);
}

@Override
public int hashCode() {
return Objects.hash(partitionPredicate, bucketPredicate, levelPredicate);
return Objects.hash(partition, bucketPredicate, levelPredicate);
}

public List<Split> splits(FileStoreTable storeTable) {
Expand All @@ -216,27 +248,8 @@ public List<Split> splits(FileStoreTable storeTable) {

private TableScan.Plan tablePlan(FileStoreTable storeTable) {
InnerTableScan scan = storeTable.newScan();
if (partitionPredicate != null) {
if (partitionPredicate.function() instanceof Equal) {
String partitionStr = partitionPredicate.literals().get(0).toString();
if (partitionStr.startsWith("[")) {
partitionStr = partitionStr.substring(1);
}
if (partitionStr.endsWith("]")) {
partitionStr = partitionStr.substring(0, partitionStr.length() - 1);
}
String[] partFields = partitionStr.split(", ");
LinkedHashMap<String, String> partSpec = new LinkedHashMap<>();
List<String> partitionKeys = storeTable.partitionKeys();
if (partitionKeys.size() != partFields.length) {
return Collections::emptyList;
}
for (int i = 0; i < partitionKeys.size(); i++) {
partSpec.put(partitionKeys.get(i), partFields[i]);
}
scan.withPartitionFilter(partSpec);
}
// TODO support range?
if (partition != null) {
scan.withPartitionFilter(Collections.singletonList(partition));
}
if (bucketPredicate != null) {
scan.withBucketFilter(
Expand Down
3 changes: 1 addition & 2 deletions paimon-core/src/test/java/org/apache/paimon/table/system/FilesTableTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -159,8 +159,7 @@ public void testReadFilesFromSpecifiedSnapshot() throws Exception {
}

@Test
public void testReadFilesFromNotExistSnapshot() throws Exception {

public void testReadFilesFromNotExistSnapshot() {
filesTable =
(FilesTable)
filesTable.copy(
Expand Down
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