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Flink 1.18, 1.19: Implement timestamp(9), unknown, and defaults #12532

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Merged
rdblue merged 2 commits into from
Mar 15, 2025
Merged

Flink 1.18, 1.19: Implement timestamp(9), unknown, and defaults #12532

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ee6d90f
Flink 1.19: Implement timestamp(9), unknown, and defaults.
rdblue Mar 14, 2025
1ae71d1
Flink 1.18: Implement timestamp(9), unknown, and defaults.
rdblue Mar 14, 2025
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5 changes: 5 additions & 0 deletions flink/v1.18/flink/src/main/java/org/apache/iceberg/flink/FlinkRowData.java
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Original file line number Diff line number Diff line change
Expand Up @@ -20,12 +20,17 @@

import org.apache.flink.table.data.RowData;
import org.apache.flink.table.types.logical.LogicalType;
import org.apache.flink.table.types.logical.NullType;

public class FlinkRowData {

private FlinkRowData() {}

public static RowData.FieldGetter createFieldGetter(LogicalType fieldType, int fieldPos) {
if (fieldType instanceof NullType) {
return rowData -> null;
}

RowData.FieldGetter flinkFieldGetter = RowData.createFieldGetter(fieldType, fieldPos);
return rowData -> {
// Be sure to check for null values, even if the field is required. Flink
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12 changes: 12 additions & 0 deletions flink/v1.18/flink/src/main/java/org/apache/iceberg/flink/TypeToFlinkType.java
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
import org.apache.flink.table.types.logical.LocalZonedTimestampType;
import org.apache.flink.table.types.logical.LogicalType;
import org.apache.flink.table.types.logical.MapType;
import org.apache.flink.table.types.logical.NullType;
import org.apache.flink.table.types.logical.RowType;
import org.apache.flink.table.types.logical.TimeType;
import org.apache.flink.table.types.logical.TimestampType;
Expand Down Expand Up @@ -85,6 +86,8 @@ public LogicalType map(Types.MapType map, LogicalType keyResult, LogicalType val
@Override
public LogicalType primitive(Type.PrimitiveType primitive) {
switch (primitive.typeId()) {
case UNKNOWN:
return new NullType();
case BOOLEAN:
return new BooleanType();
case INTEGER:
Expand Down Expand Up @@ -113,6 +116,15 @@ public LogicalType primitive(Type.PrimitiveType primitive) {
// MICROS
return new TimestampType(6);
}
case TIMESTAMP_NANO:
Types.TimestampNanoType timestamp9 = (Types.TimestampNanoType) primitive;
if (timestamp9.shouldAdjustToUTC()) {
// NANOS
return new LocalZonedTimestampType(9);
} else {
// NANOS
return new TimestampType(9);
}
case STRING:
return new VarCharType(VarCharType.MAX_LENGTH);
case UUID:
Expand Down
3 changes: 3 additions & 0 deletions flink/v1.18/flink/src/main/java/org/apache/iceberg/flink/data/FlinkAvroWriter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,9 @@ public ValueWriter<?> primitive(LogicalType type, Schema primitive) {
case "timestamp-micros":
return FlinkValueWriters.timestampMicros();

case "timestamp-nanos":
return FlinkValueWriters.timestampNanos();

case "decimal":
LogicalTypes.Decimal decimal = (LogicalTypes.Decimal) logicalType;
return FlinkValueWriters.decimal(decimal.getPrecision(), decimal.getScale());
Expand Down
68 changes: 11 additions & 57 deletions flink/v1.18/flink/src/main/java/org/apache/iceberg/flink/data/FlinkParquetReaders.java
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Expand Up @@ -21,8 +21,6 @@
import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import java.time.Instant;
import java.time.ZoneOffset;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
Expand Down Expand Up @@ -274,17 +272,11 @@ public Optional<ParquetValueReader<?>> visit(
public Optional<ParquetValueReader<?>> visit(
LogicalTypeAnnotation.TimestampLogicalTypeAnnotation timestampLogicalType) {
if (timestampLogicalType.getUnit() == LogicalTypeAnnotation.TimeUnit.MILLIS) {
if (timestampLogicalType.isAdjustedToUTC()) {
return Optional.of(new MillisToTimestampTzReader(desc));
} else {
return Optional.of(new MillisToTimestampReader(desc));
}
return Optional.of(new MillisToTimestampReader(desc));
} else if (timestampLogicalType.getUnit() == LogicalTypeAnnotation.TimeUnit.MICROS) {
if (timestampLogicalType.isAdjustedToUTC()) {
return Optional.of(new MicrosToTimestampTzReader(desc));
} else {
return Optional.of(new MicrosToTimestampReader(desc));
}
return Optional.of(new MicrosToTimestampReader(desc));
} else if (timestampLogicalType.getUnit() == LogicalTypeAnnotation.TimeUnit.NANOS) {
return Optional.of(new NanosToTimestampReader(desc));
}

return LogicalTypeAnnotation.LogicalTypeAnnotationVisitor.super.visit(timestampLogicalType);
Expand Down Expand Up @@ -412,25 +404,17 @@ public DecimalData read(DecimalData ignored) {
}
}

private static class MicrosToTimestampTzReader
private static class NanosToTimestampReader
extends ParquetValueReaders.UnboxedReader<TimestampData> {
MicrosToTimestampTzReader(ColumnDescriptor desc) {
NanosToTimestampReader(ColumnDescriptor desc) {
super(desc);
}

@Override
public TimestampData read(TimestampData ignored) {
long value = readLong();
return TimestampData.fromLocalDateTime(
Instant.ofEpochSecond(
Math.floorDiv(value, 1000_000L), Math.floorMod(value, 1000_000L) * 1000L)
.atOffset(ZoneOffset.UTC)
.toLocalDateTime());
}

@Override
public long readLong() {
return column.nextLong();
return TimestampData.fromEpochMillis(
Math.floorDiv(value, 1_000_000L), Math.floorMod(value, 1_000_000));
}
}

Expand All @@ -442,15 +426,9 @@ private static class MicrosToTimestampReader

@Override
public TimestampData read(TimestampData ignored) {
long value = readLong();
return TimestampData.fromInstant(
Instant.ofEpochSecond(
Math.floorDiv(value, 1000_000L), Math.floorMod(value, 1000_000L) * 1000L));
}

@Override
public long readLong() {
return column.nextLong();
long micros = readLong();
return TimestampData.fromEpochMillis(
Math.floorDiv(micros, 1000L), Math.floorMod(micros, 1000) * 1000);
}
}

Expand All @@ -465,30 +443,6 @@ public TimestampData read(TimestampData ignored) {
long millis = readLong();
return TimestampData.fromEpochMillis(millis);
}

@Override
public long readLong() {
return column.nextLong();
}
}

private static class MillisToTimestampTzReader
extends ParquetValueReaders.UnboxedReader<TimestampData> {
MillisToTimestampTzReader(ColumnDescriptor desc) {
super(desc);
}

@Override
public TimestampData read(TimestampData ignored) {
long millis = readLong();
return TimestampData.fromLocalDateTime(
Instant.ofEpochMilli(millis).atOffset(ZoneOffset.UTC).toLocalDateTime());
}

@Override
public long readLong() {
return column.nextLong();
}
}

private static class StringReader extends ParquetValueReaders.PrimitiveReader<StringData> {
Expand Down
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