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[FLINK-39289][paimon] Supports executing TRUNCATE schema change events on tables with deletion-vectors.enabled:true set #4327

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[FLINK-39289][paimon] Supports executing TRUNCATE schema change events on tables with deletion-vectors.enabled:true set #4327

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a1ce7ab
[FLINK-39289][paimon] Supports executing TRUNCATE schema change event…
Mar 23, 2026
5d489ae
[FLINK-39289][paimon] Modify the corresponding unit tests to remove t…
Mar 24, 2026
23b7e31
[FLINK-39289][paimon] fix violations
Mar 24, 2026
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5 changes: 0 additions & 5 deletions ...imon/src/main/java/org/apache/flink/cdc/connectors/paimon/sink/PaimonMetadataApplier.java
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,6 @@
import org.apache.flink.cdc.common.event.TruncateTableEvent;
import org.apache.flink.cdc.common.event.visitor.SchemaChangeEventVisitor;
import org.apache.flink.cdc.common.exceptions.SchemaEvolveException;
import org.apache.flink.cdc.common.exceptions.UnsupportedSchemaChangeEventException;
import org.apache.flink.cdc.common.schema.Schema;
import org.apache.flink.cdc.common.sink.MetadataApplier;
import org.apache.flink.cdc.connectors.paimon.sink.utils.TypeUtils;
Expand Down Expand Up @@ -354,10 +353,6 @@ private void applyAlterColumnType(AlterColumnTypeEvent event) throws SchemaEvolv
private void applyTruncateTable(TruncateTableEvent event) throws SchemaEvolveException {
try {
Table table = catalog.getTable(tableIdToIdentifier(event));
if (table.options().get("deletion-vectors.enabled").equals("true")) {
throw new UnsupportedSchemaChangeEventException(
event, "Unable to truncate a table with deletion vectors enabled.", null);
}
try (BatchTableCommit batchTableCommit = table.newBatchWriteBuilder().newCommit()) {
batchTableCommit.truncateTable();
}
Expand Down
15 changes: 2 additions & 13 deletions ...paimon/src/test/java/org/apache/flink/cdc/connectors/paimon/sink/v2/PaimonSinkITCase.java
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,6 @@
import org.apache.flink.cdc.common.event.TableId;
import org.apache.flink.cdc.common.event.TruncateTableEvent;
import org.apache.flink.cdc.common.exceptions.SchemaEvolveException;
import org.apache.flink.cdc.common.exceptions.UnsupportedSchemaChangeEventException;
import org.apache.flink.cdc.common.factories.DataSinkFactory;
import org.apache.flink.cdc.common.factories.FactoryHelper;
import org.apache.flink.cdc.common.pipeline.SchemaChangeBehavior;
Expand Down Expand Up @@ -489,18 +488,8 @@ public void testSinkWithSchemaChange(String metastore, boolean enableDeleteVecto
Row.ofKind(RowKind.INSERT, "6", "6"));

TruncateTableEvent truncateTableEvent = new TruncateTableEvent(table1);
if (enableDeleteVector) {
Assertions.assertThatThrownBy(
() -> metadataApplier.applySchemaChange(truncateTableEvent))
.isExactlyInstanceOf(SchemaEvolveException.class)
.cause()
.isExactlyInstanceOf(UnsupportedSchemaChangeEventException.class)
.extracting("exceptionMessage")
.isEqualTo("Unable to truncate a table with deletion vectors enabled.");
} else {
metadataApplier.applySchemaChange(truncateTableEvent);
Assertions.assertThat(fetchResults(table1)).isEmpty();
}
metadataApplier.applySchemaChange(truncateTableEvent);
Assertions.assertThat(fetchResults(table1)).isEmpty();

DropTableEvent dropTableEvent = new DropTableEvent(table1);
metadataApplier.applySchemaChange(dropTableEvent);
Expand Down
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