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fix: skip serializing file scan task partition#108

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chenzl25 wants to merge 33 commits intomainfrom
dev_rebase_main_20251111
Closed

fix: skip serializing file scan task partition#108
chenzl25 wants to merge 33 commits intomainfrom
dev_rebase_main_20251111

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@chenzl25 chenzl25 commented Jan 8, 2026

Which issue does this PR close?

  • Closes #.

What changes are included in this PR?

Are these changes tested?

xxchan and others added 30 commits November 11, 2025 13:45
Signed-off-by: xxchan <xxchan22f@gmail.com>
Co-authored-by: ZENOTME <43447882+ZENOTME@users.noreply.github.com>
Co-authored-by: ZENOTME <st810918843@gmail.com>
Signed-off-by: xxchan <xxchan22f@gmail.com>
Co-authored-by: ZENOTME <43447882+ZENOTME@users.noreply.github.com>
Co-authored-by: ZENOTME <st810918843@gmail.com>
---------

Signed-off-by: xxchan <xxchan22f@gmail.com>
Co-authored-by: ZENOTME <43447882+ZENOTME@users.noreply.github.com>
Co-authored-by: ZENOTME <st810918843@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Dylan <chenzilin25@gmail.com>
* feat(iceberg): introduce rewrite files action

* fix(iceberg): add test

* fix test
* fix plan files with deletes

* fmt
* feat(iceberg): rewrite_files support use_starting_sequence_number

* chore(test): add test_sequence_number_in_manifest_entry
* fix: delete file lost wake

Signed-off-by: xxchan <xxchan22f@gmail.com>

* .

Signed-off-by: xxchan <xxchan22f@gmail.com>

* .

Signed-off-by: xxchan <xxchan22f@gmail.com>

* revert

* typo

---------

Signed-off-by: xxchan <xxchan22f@gmail.com>
Co-authored-by: xxchan <xxchan22f@gmail.com>
Co-authored-by: Li0k <yuli@singularity-data.com>
* fix(iceberg): fix rewrite-files partition-spec-id

* fix(docker): update docker file

* add test

* update minio

* Revert "update minio"

This reverts commit 4464d90.
* feat: support to branch

* fix: fix ref name

* fix: current_snapshot_id

* refactor: refactor interface

* fmt
* fix: fix snapshot for entries

* refactor: refactor starting_sequence_number

* feat: OverwriteFiles Action

* fix: fix compile

* fix: add more test

* typo

* fix: fix ut

* fix: fix check
* feat: manifest filter

feat: manifest filter

* feat: add ut

* feat: add snapshot-id

* feat: integrate filter manager and snapshot producer

* feat: remove drop partition

* feat: intergrate snapshot producer and filter manager

* address comments

* fix: address comments and UT

* typo

* update UT

* feat: add configuration to enable filter manager

* typo

fix: fix drop dangling delete files (#88)
* fix(azdls): enable append mode for AZDLS write operations

* fix: fix doc
fix: use branch_snapshot instead of current snashot (#94)
* support position writer

* fmt

* fix: fix integration-tests and bug

* fix

---------

Co-authored-by: Li0k <yuli@singularity-data.com>
* feat: expose task writer

* feat: impl IcebergWriter

* add new_with_partition_splitter for TaskWriter

* support equality delta writer

* fix CurrentFileStatus so that it can be called when uninitialized

* fix task writer close

* fmt

* expose position delete schema and genreate snapshot id

* better validate_partition_value error msg

* rename equality_delta_writer to delta_writer

---------

Co-authored-by: Dylan Chen <zilin@singularity-data.com>
* fix record to struct deserialization

* refine the test case
* add update_schema action for Transaction

* minor

* fmt
yezizp2012 and others added 3 commits January 6, 2026 12:39
* chore: add public access of object cache
## Which issue does this PR close?

- Closes apache#1973 

## What changes are included in this PR?

- Write `content` to V3 manifest so the field is preserved correctly for
delete entry


## Are these changes tested?
Yes
…chTransformer (apache#1821) (#107)

Partially address apache#1749.

This PR adds partition spec handling to `FileScanTask` and
`RecordBatchTransformer` to correctly implement the Iceberg spec's
"Column Projection" rules for fields "not present" in data files.

Prior to this PR, `iceberg-rust`'s `FileScanTask` had no mechanism to
pass partition information to `RecordBatchTransformer`, causing two
issues:

1. **Incorrect handling of bucket partitioning**: Couldn't distinguish
identity transforms (which should use partition metadata constants) from
non-identity transforms like bucket/truncate/year/month (which must read
from data file). For example, `bucket(4, id)` stores
`id_bucket = 2` (bucket number) in partition metadata, but actual `id`
values (100, 200, 300) are only in the data file. iceberg-rust was
incorrectly treating bucket-partitioned source columns as constants,
breaking runtime filtering and returning incorrect query results.

2. **Field ID conflicts in add_files scenarios**: When importing Hive
tables via `add_files`, partition columns could have field IDs
conflicting with Parquet data columns. Example: Parquet has
field_id=1→"name", but Iceberg expects field_id=1→"id" (partition). Per
spec, the
correct field is "not present" and requires name mapping fallback.

Per the Iceberg spec
(https://iceberg.apache.org/spec/#column-projection), when a field ID is
"not present" in a data file, it must be resolved using these rules:

1. Return the value from partition metadata if an **Identity Transform**
exists
2. Use `schema.name-mapping.default` metadata to map field id to columns
without field id
3. Return the default value if it has a defined `initial-default`
4. Return null in all other cases

**Why this matters:**
- **Identity transforms** (e.g., `identity(dept)`) store actual column
values in partition metadata that can be used as constants without
reading the data file
- **Non-identity transforms** (e.g., `bucket(4, id)`, `day(timestamp)`)
store transformed values in partition metadata (e.g., bucket number 2,
not the actual `id` values 100, 200, 300) and must read source columns
from the data file

1. **Added partition fields to `FileScanTask`** (`scan/task.rs`):
- `partition: Option<Struct>` - Partition data from manifest entry
- `partition_spec: Option<Arc<PartitionSpec>>` - For transform-aware
constant detection
- `name_mapping: Option<Arc<NameMapping>>` - Name mapping from table
metadata

2. **Implemented `constants_map()` function**
(`arrow/record_batch_transformer.rs`):
- Replicates Java's `PartitionUtil.constantsMap()` behavior
- Only includes fields where transform is `Transform::Identity`
- Used to determine which fields use partition metadata constants vs.
reading from data files

3. **Enhanced `RecordBatchTransformer`**
(`arrow/record_batch_transformer.rs`):
- Added `build_with_partition_data()` method to accept partition spec,
partition data, and name mapping
- Implements all 4 spec rules for column resolution with
identity-transform awareness
- Detects field ID conflicts by verifying both field ID AND name match
- Falls back to name mapping when field IDs are missing/conflicting
(spec rule #2)

4. **Updated `ArrowReader`** (`arrow/reader.rs`):
- Uses `build_with_partition_data()` when partition information is
available
- Falls back to `build()` when not available

5. **Updated manifest entry processing** (`scan/context.rs`):
- Populates partition fields in `FileScanTask` from manifest entry data

1. **`bucket_partitioning_reads_source_column_from_file`** - Verifies
that bucket-partitioned source columns are read from data files (not
treated as constants from partition metadata)

2. **`identity_partition_uses_constant_from_metadata`** - Verifies that
identity-transformed fields correctly use partition metadata constants

3. **`test_bucket_partitioning_with_renamed_source_column`** - Verifies
field-ID-based mapping works despite column rename

4. **`add_files_partition_columns_without_field_ids`** - Verifies name
mapping resolution for Hive table imports without field IDs (spec rule

5. **`add_files_with_true_field_id_conflict`** - Verifies correct field
ID conflict detection with name mapping fallback (spec rule #2)

6. **`test_all_four_spec_rules`** - Integration test verifying all 4
spec rules work together

Yes, there are 6 new unit tests covering all 4 Iceberg spec rules. This
also resolved approximately 50 Iceberg Java tests when running with
DataFusion Comet's experimental
apache/datafusion-comet#2528 PR.

---------

Co-authored-by: Matt Butrovich <mbutrovich@users.noreply.github.com>
Co-authored-by: Renjie Liu <liurenjie2008@gmail.com>
@chenzl25 chenzl25 closed this Jan 8, 2026
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