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[core]IcebergConversions addType for Timestamp and Time #3866

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[core]IcebergConversions addType for Timestamp and Time #3866

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35e60b0
IcebergConversions addType for Timestamp and Time
dbac Aug 1, 2024
b557f69
1.Extract common convert method 2.merge test
dbac Aug 5, 2024
b807d4e
fix code style
dbac Aug 5, 2024
d853fe9
remove local variables
dbac Aug 6, 2024
9ead1ff
fix bug
dbac Aug 6, 2024
09dfb48
fix Precision
dbac Aug 12, 2024
baa72ee
Merge branch 'refs/heads/master' into IcebergConversions-addType
dbac Aug 23, 2024
08929e8
resolve conflicts
dbac Aug 27, 2024
161b95c
resolve conflicts
dbac Aug 27, 2024
7a59190
Merge branch 'refs/heads/master' into IcebergConversions-addType
dbac Aug 27, 2024
cc8a5aa
Merge branch 'refs/heads/master' into IcebergConversions-addType
dbac Aug 29, 2024
8725fbc
resolve conflicts
dbac Aug 30, 2024
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47 changes: 47 additions & 0 deletions paimon-core/src/main/java/org/apache/paimon/iceberg/manifest/IcebergConversions.java
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Original file line number Diff line number Diff line change
Expand Up @@ -20,8 +20,11 @@

import org.apache.paimon.data.BinaryString;
import org.apache.paimon.data.Decimal;
import org.apache.paimon.data.Timestamp;
import org.apache.paimon.types.DataType;
import org.apache.paimon.types.DecimalType;
import org.apache.paimon.types.LocalZonedTimestampType;
import org.apache.paimon.types.TimestampType;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
Expand Down Expand Up @@ -79,6 +82,19 @@ public static ByteBuffer toByteBuffer(DataType type, Object value) {
case DECIMAL:
Decimal decimal = (Decimal) value;
return ByteBuffer.wrap((decimal.toUnscaledBytes()));
case TIMESTAMP_WITHOUT_TIME_ZONE:
TimestampType timestampType = (TimestampType) type;
return convertTimestampWithPrecisionToBuffer(
(Timestamp) value, timestampType.getPrecision());
case TIMESTAMP_WITH_LOCAL_TIME_ZONE:
LocalZonedTimestampType localTimestampType = (LocalZonedTimestampType) type;
return convertTimestampWithPrecisionToBuffer(
(Timestamp) value, localTimestampType.getPrecision());
case TIME_WITHOUT_TIME_ZONE:
long microsecondsFromMillis = (int) value * 1_000;
return ByteBuffer.allocate(8)
.order(ByteOrder.LITTLE_ENDIAN)
.putLong(0, microsecondsFromMillis);
default:
throw new UnsupportedOperationException("Cannot serialize type: " + type);
}
Expand Down Expand Up @@ -112,8 +128,39 @@ public static Object toPaimonObject(DataType type, byte[] bytes) {
DecimalType decimalType = (DecimalType) type;
return Decimal.fromUnscaledBytes(
bytes, decimalType.getPrecision(), decimalType.getScale());
case TIMESTAMP_WITHOUT_TIME_ZONE:
TimestampType timestampType = (TimestampType) type;
return convertBytesToTimestamp(bytes, timestampType.getPrecision());
case TIMESTAMP_WITH_LOCAL_TIME_ZONE:
LocalZonedTimestampType localTimestampType = (LocalZonedTimestampType) type;
return convertBytesToTimestamp(bytes, localTimestampType.getPrecision());
case TIME_WITHOUT_TIME_ZONE:
return ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN).getLong() / 1000;
default:
throw new UnsupportedOperationException("Cannot deserialize type: " + type);
}
}

private static ByteBuffer convertTimestampWithPrecisionToBuffer(
Timestamp timestamp, int precision) {
long timestampValue;
if (precision <= 3) {
timestampValue = timestamp.getMillisecond() * 1_000_000;
} else {
timestampValue =
timestamp.getMillisecond() * 1_000_000 + timestamp.getNanoOfMillisecond();
}
return ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN).putLong(timestampValue);
}

private static Timestamp convertBytesToTimestamp(byte[] bytes, int precision) {
long timestampValue = ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN).getLong();
long milliseconds = timestampValue / 1_000_000;
int nanosOfMillisecond = (int) (timestampValue % 1_000_000);
if (precision <= 3) {
return Timestamp.fromEpochMillis(milliseconds);
} else {
return Timestamp.fromEpochMillis(milliseconds, nanosOfMillisecond);
}
}
}
6 changes: 6 additions & 0 deletions paimon-core/src/main/java/org/apache/paimon/iceberg/metadata/IcebergDataField.java
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Expand Up @@ -130,6 +130,12 @@ private static String toTypeString(DataType dataType) {
DecimalType decimalType = (DecimalType) dataType;
return String.format(
"decimal(%d, %d)", decimalType.getPrecision(), decimalType.getScale());
case TIMESTAMP_WITHOUT_TIME_ZONE:
return "timestamp";
case TIMESTAMP_WITH_LOCAL_TIME_ZONE:
return "timestamptz";
case TIME_WITHOUT_TIME_ZONE:
return "time";
default:
throw new UnsupportedOperationException("Unsupported data type: " + dataType);
}
Expand Down
125 changes: 111 additions & 14 deletions paimon-core/src/test/java/org/apache/paimon/iceberg/IcebergCompatibilityTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
import org.apache.paimon.data.BinaryString;
import org.apache.paimon.data.Decimal;
import org.apache.paimon.data.GenericRow;
import org.apache.paimon.data.Timestamp;
import org.apache.paimon.disk.IOManagerImpl;
import org.apache.paimon.fs.Path;
import org.apache.paimon.fs.local.LocalFileIO;
Expand Down Expand Up @@ -372,7 +373,8 @@ public void testAllTypeStatistics() throws Exception {
DataTypes.STRING(),
DataTypes.BINARY(20),
DataTypes.VARBINARY(20),
DataTypes.DATE()
DataTypes.DATE(),
DataTypes.TIMESTAMP(6)
},
new String[] {
"v_int",
Expand All @@ -385,7 +387,8 @@ public void testAllTypeStatistics() throws Exception {
"v_varchar",
"v_binary",
"v_varbinary",
"v_date"
"v_date",
"v_timestamp"
});
FileStoreTable table =
createPaimonTable(rowType, Collections.emptyList(), Collections.emptyList(), -1);
Expand All @@ -406,7 +409,8 @@ public void testAllTypeStatistics() throws Exception {
BinaryString.fromString("cat"),
"B_apple".getBytes(),
"B_cat".getBytes(),
100);
100,
Timestamp.fromEpochMillis(1060328130123L, 256000));
write.write(lowerBounds);
GenericRow upperBounds =
GenericRow.of(
Expand All @@ -420,7 +424,8 @@ public void testAllTypeStatistics() throws Exception {
BinaryString.fromString("dog"),
"B_banana".getBytes(),
"B_dog".getBytes(),
200);
200,
Timestamp.fromEpochMillis(1723486530123L, 456000));
write.write(upperBounds);
commit.commit(1, write.prepareCommit(false, 1));

Expand Down Expand Up @@ -448,6 +453,9 @@ public void testAllTypeStatistics() throws Exception {
} else if (type.getTypeRoot() == DataTypeRoot.DECIMAL) {
lower = new BigDecimal(lowerBounds.getField(i).toString());
upper = new BigDecimal(upperBounds.getField(i).toString());
} else if (type.getTypeRoot() == DataTypeRoot.TIMESTAMP_WITHOUT_TIME_ZONE) {
lower = ((Timestamp) lowerBounds.getField(i)).toString();
upper = ((Timestamp) upperBounds.getField(i)).toString();
} else {
lower = lowerBounds.getField(i);
upper = upperBounds.getField(i);
Expand All @@ -459,16 +467,18 @@ public void testAllTypeStatistics() throws Exception {
expectedLower = LocalDate.ofEpochDay((int) lower).toString();
expectedUpper = LocalDate.ofEpochDay((int) upper).toString();
}

assertThat(
getIcebergResult(
icebergTable ->
IcebergGenerics.read(icebergTable)
.select(name)
.where(Expressions.lessThan(name, upper))
.build(),
Record::toString))
.containsExactly("Record(" + expectedLower + ")");
if (type.getTypeRoot() != DataTypeRoot.TIMESTAMP_WITHOUT_TIME_ZONE) {
// todo iceberg lessthan has bug
assertThat(
getIcebergResult(
icebergTable ->
IcebergGenerics.read(icebergTable)
.select(name)
.where(Expressions.lessThan(name, upper))
.build(),
Record::toString))
.containsExactly("Record(" + expectedLower + ")");
}
assertThat(
getIcebergResult(
icebergTable ->
Expand Down Expand Up @@ -614,6 +624,76 @@ public void testPartitionedPrimaryKeyTable() throws Exception {
Record::toString);
}

@Test
public void testPartitionedPrimaryKeyTableTimestamp() throws Exception {
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RowType rowType =
RowType.of(
new DataType[] {
DataTypes.TIMESTAMP(6),
DataTypes.STRING(),
DataTypes.STRING(),
DataTypes.INT(),
DataTypes.BIGINT()
},
new String[] {"pt1", "pt2", "k", "v1", "v2"});

BiFunction<Timestamp, String, BinaryRow> binaryRow =
(pt1, pt2) -> {
BinaryRow b = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(b);
writer.writeTimestamp(0, pt1, 6);
writer.writeString(1, BinaryString.fromString(pt2));
writer.complete();
return b;
};

int numRounds = 20;
int numRecords = 100;
ThreadLocalRandom random = ThreadLocalRandom.current();

List<List<TestRecord>> testRecords = new ArrayList<>();
List<List<String>> expected = new ArrayList<>();
Map<String, String> expectedMap = new LinkedHashMap<>();

for (int r = 0; r < numRounds; r++) {
List<TestRecord> round = new ArrayList<>();
for (int i = 0; i < numRecords; i++) {
Timestamp pt1 = generateRandomTimestamp(random, random.nextBoolean() ? 3 : 6);
String pt2 = String.valueOf(random.nextInt(10, 12));
String k = String.valueOf(random.nextInt(0, 100));
int v1 = random.nextInt();
long v2 = random.nextLong();

round.add(
new TestRecord(
binaryRow.apply(pt1, pt2),
GenericRow.of(
pt1,
BinaryString.fromString(pt2),
BinaryString.fromString(k),
v1,
v2)));

expectedMap.put(
String.format("%s, %s, %s", pt1, pt2, k), String.format("%d, %d", v1, v2));
}

testRecords.add(round);
expected.add(
expectedMap.entrySet().stream()
.map(e -> String.format("Record(%s, %s)", e.getKey(), e.getValue()))
.collect(Collectors.toList()));
}

runCompatibilityTest(
rowType,
Arrays.asList("pt1", "pt2"),
Arrays.asList("pt1", "pt2", "k"),
testRecords,
expected,
Record::toString);
}

private void runCompatibilityTest(
RowType rowType,
List<String> partitionKeys,
Expand Down Expand Up @@ -726,4 +806,21 @@ private List<String> getIcebergResult(
result.close();
return actual;
}

private Timestamp generateRandomTimestamp(ThreadLocalRandom random, int precision) {
long milliseconds = random.nextLong(0, Long.MAX_VALUE / 1000_000 - 1_000 * 1000);
int nanoAdjustment;
switch (precision) {
case 3:
nanoAdjustment = 0;
break;
case 6:
nanoAdjustment = random.nextInt(0, 1_000) * 1000;
break;
default:
throw new IllegalArgumentException("Unsupported precision: " + precision);
}

return Timestamp.fromEpochMillis(milliseconds, nanoAdjustment);
}
}
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