924060929 commented on code in PR #69986:
URL: https://github.com/apache/doris/pull/69986#discussion_r4447229753


##########
fe/fe-core/src/main/java/org/apache/doris/datasource/iceberg/cache/IcebergPartitionValueAdapter.java:
##########
@@ -0,0 +1,331 @@
+// 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.
+
+package org.apache.doris.datasource.iceberg.cache;
+
+import org.apache.iceberg.ContentFile;
+import org.apache.iceberg.DataFile;
+import org.apache.iceberg.DeleteFile;
+import org.apache.iceberg.FileContent;
+import org.apache.iceberg.FileFormat;
+import org.apache.iceberg.PartitionData;
+import org.apache.iceberg.types.Type;
+import org.apache.iceberg.types.Types;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.nio.ByteBuffer;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/** Query-local partition adaptation; all other content-file metadata is 
delegated unchanged. */
+final class IcebergPartitionValueAdapter {
+    private static final long NANOS_PER_DAY = 86_400_000_000_000L;
+    private final int[] sourcePositions;
+    private final Type[] sourceTypes;
+    private final Type[] targetTypes;
+    private final PartitionData template;
+
+    IcebergPartitionValueAdapter(Types.StructType source, Types.StructType 
target) {
+        int size = target.fields().size();
+        sourcePositions = new int[size];
+        sourceTypes = new Type[size];
+        targetTypes = new Type[size];
+        template = new PartitionData(target);
+        for (int i = 0; i < size; i++) {
+            Types.NestedField field = target.fields().get(i);
+            targetTypes[i] = field.type();
+            sourcePositions[i] = -1;
+            for (int j = 0; j < source.fields().size(); j++) {
+                if (source.fields().get(j).fieldId() == field.fieldId()) {
+                    sourcePositions[i] = j;
+                    sourceTypes[i] = source.fields().get(j).type();
+                    break;
+                }
+            }
+            if (sourcePositions[i] < 0) {
+                throw new IllegalArgumentException("Missing cached partition 
field " + field.fieldId());
+            }
+        }
+    }
+
+    DataFile adapt(DataFile file) {
+        return new DataView(file, adapt((PartitionData) file.partition()));
+    }
+
+    DeleteFile adapt(DeleteFile file) {
+        return new DeleteView(file, adapt((PartitionData) file.partition()));
+    }
+
+    PartitionData adapt(PartitionData source) {
+        // Copies reuse the Avro schema; do not reconstruct/serialize it for 
every file.
+        PartitionData original = source.copy();
+        PartitionData result = template.copy();
+        for (int i = 0; i < sourcePositions.length; i++) {
+            if (sourcePositions[i] >= 0) {
+                result.set(i, convert(original.get(sourcePositions[i], 
Object.class), sourceTypes[i], targetTypes[i]));
+            }
+        }
+        return result;
+    }
+
+    private static Object convert(Object value, Type source, Type target) {
+        if (value == null) {
+            return null;
+        }
+        if (target.typeId() == Type.TypeID.UNKNOWN) {
+            // A dropped source has no target type. Different cache loaders 
may have decoded the same
+            // physical value before or after promotion, so preserve its value 
in a common representation.
+            // Iceberg's UNKNOWN comparator uses natural ordering: 
Integer/Long and Float/Double cannot
+            // compare across Java classes and would silently fail data/delete 
partition-key matching.
+            if (source.typeId() == Type.TypeID.INTEGER) {
+                return ((Integer) value).longValue();
+            }
+            if (source.typeId() == Type.TypeID.FLOAT) {
+                return ((Float) value).doubleValue();
+            }
+            if (source.typeId() == Type.TypeID.DATE) {
+                // A dropped DATE may lie outside the long-nanos range. Keep 
the key lossless.
+                return BigInteger.valueOf((Integer) 
value).multiply(BigInteger.valueOf(NANOS_PER_DAY));
+            }
+            if (source.typeId() == Type.TypeID.TIMESTAMP_NANO) {
+                return BigInteger.valueOf((Long) value);
+            }
+            // Decimal promotion changes precision only; its Java type and 
scale already agree.
+            return value;
+        }
+        if (source.equals(target)) {
+            return value;
+        }
+        if (source.typeId() == Type.TypeID.DATE && target.typeId() == 
Type.TypeID.TIMESTAMP_NANO) {
+            return Math.multiplyExact(((Integer) value).longValue(), 
NANOS_PER_DAY);
+        }
+        if (source.typeId() == Type.TypeID.TIMESTAMP_NANO && target.typeId() 
== Type.TypeID.DATE) {
+            long nanos = (Long) value;
+            if (nanos % NANOS_PER_DAY != 0) {
+                throw new IllegalArgumentException("Partition value cannot be 
represented as date: " + value);
+            }
+            return Math.toIntExact(nanos / NANOS_PER_DAY);
+        }
+        if (source.typeId() == Type.TypeID.INTEGER && target.typeId() == 
Type.TypeID.LONG) {
+            return ((Integer) value).longValue();
+        }
+        if (source.typeId() == Type.TypeID.LONG && target.typeId() == 
Type.TypeID.INTEGER) {
+            return Math.toIntExact((Long) value);
+        }
+        if (source.typeId() == Type.TypeID.FLOAT && target.typeId() == 
Type.TypeID.DOUBLE) {
+            return ((Float) value).doubleValue();
+        }
+        if (source.typeId() == Type.TypeID.DOUBLE && target.typeId() == 
Type.TypeID.FLOAT) {
+            double original = (Double) value;
+            float narrowed = (float) original;
+            if (!Double.isNaN(original) && Double.compare(original, (double) 
narrowed) != 0) {
+                throw new IllegalArgumentException("Partition value cannot be 
represented as float: " + value);
+            }
+            return narrowed;
+        }
+        if (source.typeId() == Type.TypeID.DECIMAL && target.typeId() == 
Type.TypeID.DECIMAL) {
+            Types.DecimalType decimalType = (Types.DecimalType) target;
+            BigDecimal decimal = ((BigDecimal) 
value).setScale(decimalType.scale());
+            if (decimal.precision() > decimalType.precision()) {
+                throw new IllegalArgumentException("Partition value exceeds " 
+ target + ": " + value);
+            }
+            return decimal;
+        }
+        throw new IllegalArgumentException("Cannot adapt partition value from 
" + source + " to " + target);

Review Comment:
   Fixed in 68ef8c21edda4dd13fec92dcc835b590d8c6f81e. DATE partitions now 
convert exactly to ordinary without-zone TIMESTAMP microseconds, with overflow 
checks and exact-midnight checks for reverse historical adaptation. 
DATE-to-zoned timestamp conversions are rejected for both precisions. Added 
real partitioned streaming metadata cases and unit tests for positive/negative 
days, nulls, overflow and lossy narrowing. This is a reader repair; SQL ALTER 
type support is unchanged. All 253 related FE tests and full FE 
packaging/Checkstyle pass.



##########
fe/fe-core/src/main/java/org/apache/doris/datasource/iceberg/cache/IcebergPartitionValueAdapter.java:
##########
@@ -0,0 +1,331 @@
+// 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.
+
+package org.apache.doris.datasource.iceberg.cache;
+
+import org.apache.iceberg.ContentFile;
+import org.apache.iceberg.DataFile;
+import org.apache.iceberg.DeleteFile;
+import org.apache.iceberg.FileContent;
+import org.apache.iceberg.FileFormat;
+import org.apache.iceberg.PartitionData;
+import org.apache.iceberg.types.Type;
+import org.apache.iceberg.types.Types;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.nio.ByteBuffer;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/** Query-local partition adaptation; all other content-file metadata is 
delegated unchanged. */
+final class IcebergPartitionValueAdapter {
+    private static final long NANOS_PER_DAY = 86_400_000_000_000L;
+    private final int[] sourcePositions;
+    private final Type[] sourceTypes;
+    private final Type[] targetTypes;
+    private final PartitionData template;
+
+    IcebergPartitionValueAdapter(Types.StructType source, Types.StructType 
target) {
+        int size = target.fields().size();
+        sourcePositions = new int[size];
+        sourceTypes = new Type[size];
+        targetTypes = new Type[size];
+        template = new PartitionData(target);
+        for (int i = 0; i < size; i++) {
+            Types.NestedField field = target.fields().get(i);
+            targetTypes[i] = field.type();
+            sourcePositions[i] = -1;
+            for (int j = 0; j < source.fields().size(); j++) {
+                if (source.fields().get(j).fieldId() == field.fieldId()) {
+                    sourcePositions[i] = j;
+                    sourceTypes[i] = source.fields().get(j).type();
+                    break;
+                }
+            }
+            if (sourcePositions[i] < 0) {
+                throw new IllegalArgumentException("Missing cached partition 
field " + field.fieldId());
+            }
+        }
+    }
+
+    DataFile adapt(DataFile file) {
+        return new DataView(file, adapt((PartitionData) file.partition()));
+    }
+
+    DeleteFile adapt(DeleteFile file) {
+        return new DeleteView(file, adapt((PartitionData) file.partition()));
+    }
+
+    PartitionData adapt(PartitionData source) {
+        // Copies reuse the Avro schema; do not reconstruct/serialize it for 
every file.
+        PartitionData original = source.copy();
+        PartitionData result = template.copy();
+        for (int i = 0; i < sourcePositions.length; i++) {
+            if (sourcePositions[i] >= 0) {
+                result.set(i, convert(original.get(sourcePositions[i], 
Object.class), sourceTypes[i], targetTypes[i]));
+            }
+        }
+        return result;
+    }
+
+    private static Object convert(Object value, Type source, Type target) {
+        if (value == null) {
+            return null;
+        }
+        if (target.typeId() == Type.TypeID.UNKNOWN) {
+            // A dropped source has no target type. Different cache loaders 
may have decoded the same
+            // physical value before or after promotion, so preserve its value 
in a common representation.
+            // Iceberg's UNKNOWN comparator uses natural ordering: 
Integer/Long and Float/Double cannot
+            // compare across Java classes and would silently fail data/delete 
partition-key matching.
+            if (source.typeId() == Type.TypeID.INTEGER) {
+                return ((Integer) value).longValue();
+            }
+            if (source.typeId() == Type.TypeID.FLOAT) {
+                return ((Float) value).doubleValue();
+            }
+            if (source.typeId() == Type.TypeID.DATE) {

Review Comment:
   Fixed in 68ef8c21edda4dd13fec92dcc835b590d8c6f81e. Dropped DATE, microsecond 
TIMESTAMP and nanosecond TIMESTAMP keys now use the same lossless BigInteger 
nanosecond representation, so comparisons and hashes agree without overflowing 
the source ranges. The dropped DATE-to-microsecond partition test now retains 
its equality delete, and unit tests compare keys across all three 
representations. All 253 related FE tests and full FE packaging/Checkstyle pass.



##########
fe/fe-core/src/main/java/org/apache/doris/datasource/iceberg/cache/IcebergPartitionValueAdapter.java:
##########
@@ -0,0 +1,331 @@
+// 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.
+
+package org.apache.doris.datasource.iceberg.cache;
+
+import org.apache.iceberg.ContentFile;
+import org.apache.iceberg.DataFile;
+import org.apache.iceberg.DeleteFile;
+import org.apache.iceberg.FileContent;
+import org.apache.iceberg.FileFormat;
+import org.apache.iceberg.PartitionData;
+import org.apache.iceberg.types.Type;
+import org.apache.iceberg.types.Types;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.nio.ByteBuffer;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/** Query-local partition adaptation; all other content-file metadata is 
delegated unchanged. */
+final class IcebergPartitionValueAdapter {
+    private static final long NANOS_PER_DAY = 86_400_000_000_000L;
+    private final int[] sourcePositions;
+    private final Type[] sourceTypes;
+    private final Type[] targetTypes;
+    private final PartitionData template;
+
+    IcebergPartitionValueAdapter(Types.StructType source, Types.StructType 
target) {
+        int size = target.fields().size();
+        sourcePositions = new int[size];
+        sourceTypes = new Type[size];
+        targetTypes = new Type[size];
+        template = new PartitionData(target);
+        for (int i = 0; i < size; i++) {
+            Types.NestedField field = target.fields().get(i);
+            targetTypes[i] = field.type();
+            sourcePositions[i] = -1;
+            for (int j = 0; j < source.fields().size(); j++) {
+                if (source.fields().get(j).fieldId() == field.fieldId()) {
+                    sourcePositions[i] = j;
+                    sourceTypes[i] = source.fields().get(j).type();
+                    break;
+                }
+            }
+            if (sourcePositions[i] < 0) {
+                throw new IllegalArgumentException("Missing cached partition 
field " + field.fieldId());
+            }
+        }
+    }
+
+    DataFile adapt(DataFile file) {
+        return new DataView(file, adapt((PartitionData) file.partition()));
+    }
+
+    DeleteFile adapt(DeleteFile file) {
+        return new DeleteView(file, adapt((PartitionData) file.partition()));
+    }
+
+    PartitionData adapt(PartitionData source) {
+        // Copies reuse the Avro schema; do not reconstruct/serialize it for 
every file.
+        PartitionData original = source.copy();
+        PartitionData result = template.copy();
+        for (int i = 0; i < sourcePositions.length; i++) {
+            if (sourcePositions[i] >= 0) {
+                result.set(i, convert(original.get(sourcePositions[i], 
Object.class), sourceTypes[i], targetTypes[i]));
+            }
+        }
+        return result;
+    }
+
+    private static Object convert(Object value, Type source, Type target) {
+        if (value == null) {
+            return null;
+        }
+        if (target.typeId() == Type.TypeID.UNKNOWN) {
+            // A dropped source has no target type. Different cache loaders 
may have decoded the same
+            // physical value before or after promotion, so preserve its value 
in a common representation.
+            // Iceberg's UNKNOWN comparator uses natural ordering: 
Integer/Long and Float/Double cannot
+            // compare across Java classes and would silently fail data/delete 
partition-key matching.
+            if (source.typeId() == Type.TypeID.INTEGER) {
+                return ((Integer) value).longValue();
+            }
+            if (source.typeId() == Type.TypeID.FLOAT) {
+                return ((Float) value).doubleValue();
+            }
+            if (source.typeId() == Type.TypeID.DATE) {
+                // A dropped DATE may lie outside the long-nanos range. Keep 
the key lossless.
+                return BigInteger.valueOf((Integer) 
value).multiply(BigInteger.valueOf(NANOS_PER_DAY));
+            }
+            if (source.typeId() == Type.TypeID.TIMESTAMP_NANO) {
+                return BigInteger.valueOf((Long) value);
+            }
+            // Decimal promotion changes precision only; its Java type and 
scale already agree.
+            return value;
+        }
+        if (source.equals(target)) {
+            return value;
+        }
+        if (source.typeId() == Type.TypeID.DATE && target.typeId() == 
Type.TypeID.TIMESTAMP_NANO) {
+            return Math.multiplyExact(((Integer) value).longValue(), 
NANOS_PER_DAY);
+        }
+        if (source.typeId() == Type.TypeID.TIMESTAMP_NANO && target.typeId() 
== Type.TypeID.DATE) {
+            long nanos = (Long) value;
+            if (nanos % NANOS_PER_DAY != 0) {
+                throw new IllegalArgumentException("Partition value cannot be 
represented as date: " + value);
+            }
+            return Math.toIntExact(nanos / NANOS_PER_DAY);
+        }
+        if (source.typeId() == Type.TypeID.INTEGER && target.typeId() == 
Type.TypeID.LONG) {
+            return ((Integer) value).longValue();
+        }
+        if (source.typeId() == Type.TypeID.LONG && target.typeId() == 
Type.TypeID.INTEGER) {
+            return Math.toIntExact((Long) value);
+        }
+        if (source.typeId() == Type.TypeID.FLOAT && target.typeId() == 
Type.TypeID.DOUBLE) {
+            return ((Float) value).doubleValue();
+        }
+        if (source.typeId() == Type.TypeID.DOUBLE && target.typeId() == 
Type.TypeID.FLOAT) {
+            double original = (Double) value;
+            float narrowed = (float) original;
+            if (!Double.isNaN(original) && Double.compare(original, (double) 
narrowed) != 0) {
+                throw new IllegalArgumentException("Partition value cannot be 
represented as float: " + value);
+            }
+            return narrowed;
+        }
+        if (source.typeId() == Type.TypeID.DECIMAL && target.typeId() == 
Type.TypeID.DECIMAL) {
+            Types.DecimalType decimalType = (Types.DecimalType) target;
+            BigDecimal decimal = ((BigDecimal) 
value).setScale(decimalType.scale());
+            if (decimal.precision() > decimalType.precision()) {
+                throw new IllegalArgumentException("Partition value exceeds " 
+ target + ": " + value);
+            }
+            return decimal;
+        }
+        throw new IllegalArgumentException("Cannot adapt partition value from 
" + source + " to " + target);
+    }
+
+    private abstract static class FileView<F extends ContentFile<F>> 
implements ContentFile<F> {

Review Comment:
   Fixed in 68ef8c21edda4dd13fec92dcc835b590d8c6f81e. The shared static 
file-view base and both concrete wrappers are serializable with explicit 
serialVersionUID; their only state is the native Iceberg content file and 
query-owned PartitionData. No adapter, cache loader or statement resource is 
captured. A real supported int-to-long partition evolution test reproduced 
NotSerializableException before the change and now verifies serialized 
data/delete partition values and one manifest load across two equivalent 
non-batch relations. All 253 related FE tests and full FE packaging/Checkstyle 
pass.



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