liurenjie1024 commented on code in PR #703: URL: https://github.com/apache/iceberg-rust/pull/703#discussion_r1855688069
########## crates/iceberg/src/writer/base_writer/equality_delete_writer.rs: ########## @@ -0,0 +1,538 @@ +// 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. + +//! This module provide `EqualityDeleteWriter`. + +use std::sync::Arc; + +use arrow_array::{ArrayRef, RecordBatch, StructArray}; +use arrow_schema::{DataType, FieldRef, Fields, Schema, SchemaRef}; +use itertools::Itertools; +use parquet::arrow::PARQUET_FIELD_ID_META_KEY; + +use crate::spec::{DataFile, Struct}; +use crate::writer::file_writer::{FileWriter, FileWriterBuilder}; +use crate::writer::{IcebergWriter, IcebergWriterBuilder}; +use crate::{Error, ErrorKind, Result}; + +/// Builder for `EqualityDeleteWriter`. +#[derive(Clone)] +pub struct EqualityDeleteFileWriterBuilder<B: FileWriterBuilder> { + inner: B, +} + +impl<B: FileWriterBuilder> EqualityDeleteFileWriterBuilder<B> { + /// Create a new `EqualityDeleteFileWriterBuilder` using a `FileWriterBuilder`. + pub fn new(inner: B) -> Self { + Self { inner } + } +} + +/// Config for `EqualityDeleteWriter`. +pub struct EqualityDeleteWriterConfig { + // Field ids used to determine row equality in equality delete files. + equality_ids: Vec<usize>, + // Projector used to project the data chunk into specific fields. + projector: ArrowFieldProjector, + partition_value: Struct, +} + +impl EqualityDeleteWriterConfig { + /// Create a new `DataFileWriterConfig` with equality ids. + pub fn new( + equality_ids: Vec<usize>, + projector: ArrowFieldProjector, + partition_value: Option<Struct>, + ) -> Self { + Self { + equality_ids, + projector, + partition_value: partition_value.unwrap_or(Struct::empty()), + } + } +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriterBuilder for EqualityDeleteFileWriterBuilder<B> { + type R = EqualityDeleteFileWriter<B>; + type C = EqualityDeleteWriterConfig; + + async fn build(self, config: Self::C) -> Result<Self::R> { + Ok(EqualityDeleteFileWriter { + inner_writer: Some(self.inner.clone().build().await?), + projector: config.projector, + equality_ids: config.equality_ids, + partition_value: config.partition_value, + }) + } +} + +/// Writer used to write equality delete files. +pub struct EqualityDeleteFileWriter<B: FileWriterBuilder> { + inner_writer: Option<B::R>, + projector: ArrowFieldProjector, + equality_ids: Vec<usize>, + partition_value: Struct, +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriter for EqualityDeleteFileWriter<B> { + async fn write(&mut self, batch: RecordBatch) -> Result<()> { + let batch = self.projector.project_bacth(batch)?; + if let Some(writer) = self.inner_writer.as_mut() { + writer.write(&batch).await + } else { + Err(Error::new( + ErrorKind::Unexpected, + "Equality delete inner writer does not exist", + )) + } + } + + async fn close(&mut self) -> Result<Vec<DataFile>> { + if let Some(writer) = self.inner_writer.take() { + Ok(writer + .close() + .await? + .into_iter() + .map(|mut res| { + res.content(crate::spec::DataContentType::EqualityDeletes); + res.equality_ids(self.equality_ids.iter().map(|id| *id as i32).collect_vec()); + res.partition(self.partition_value.clone()); + res.build().expect("msg") + }) + .collect_vec()) + } else { + Err(Error::new( + ErrorKind::Unexpected, + "Equality delete inner writer does not exist", Review Comment: ```suggestion "Equality delete inner writer has been closed.", ``` ########## crates/iceberg/src/writer/base_writer/equality_delete_writer.rs: ########## @@ -0,0 +1,544 @@ +// 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. + +//! This module provide `EqualityDeleteWriter`. + +use std::sync::Arc; + +use arrow_array::{ArrayRef, RecordBatch, StructArray}; +use arrow_schema::{DataType, FieldRef, Fields, Schema, SchemaRef}; +use itertools::Itertools; + +use crate::spec::{DataFile, Struct}; +use crate::writer::file_writer::{FileWriter, FileWriterBuilder}; +use crate::writer::{IcebergWriter, IcebergWriterBuilder}; +use crate::{Error, ErrorKind, Result}; + +/// Builder for `EqualityDeleteWriter`. +#[derive(Clone)] +pub struct EqualityDeleteFileWriterBuilder<B: FileWriterBuilder> { + inner: B, +} + +impl<B: FileWriterBuilder> EqualityDeleteFileWriterBuilder<B> { + /// Create a new `EqualityDeleteFileWriterBuilder` using a `FileWriterBuilder`. + pub fn new(inner: B) -> Self { + Self { inner } + } +} + +/// Config for `EqualityDeleteWriter`. +pub struct EqualityDeleteWriterConfig { + equality_ids: Vec<usize>, + projector: ArrowFieldProjector, + partition_value: Struct, +} + +impl EqualityDeleteWriterConfig { + /// Create a new `DataFileWriterConfig` with equality ids. + pub fn new( + equality_ids: Vec<usize>, + projector: ArrowFieldProjector, + partition_value: Option<Struct>, + ) -> Self { + Self { + equality_ids, + projector, + partition_value: partition_value.unwrap_or(Struct::empty()), + } + } +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriterBuilder for EqualityDeleteFileWriterBuilder<B> { + type R = EqualityDeleteFileWriter<B>; + type C = EqualityDeleteWriterConfig; + + async fn build(self, config: Self::C) -> Result<Self::R> { + Ok(EqualityDeleteFileWriter { + inner_writer: Some(self.inner.clone().build().await?), + projector: config.projector, + equality_ids: config.equality_ids, + partition_value: config.partition_value, + }) + } +} + +/// A writer write data +pub struct EqualityDeleteFileWriter<B: FileWriterBuilder> { + inner_writer: Option<B::R>, + projector: ArrowFieldProjector, + equality_ids: Vec<usize>, + partition_value: Struct, +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriter for EqualityDeleteFileWriter<B> { + async fn write(&mut self, batch: RecordBatch) -> Result<()> { + let batch = self.projector.project_bacth(batch)?; + if let Some(writer) = self.inner_writer.as_mut() { + writer.write(&batch).await + } else { + Err(Error::new( + ErrorKind::Unexpected, + "Equality delete inner writer does not exist", + )) + } + } + + async fn close(&mut self) -> Result<Vec<DataFile>> { + if let Some(writer) = self.inner_writer.take() { + Ok(writer + .close() + .await? + .into_iter() + .map(|mut res| { + res.content(crate::spec::DataContentType::EqualityDeletes); + res.equality_ids(self.equality_ids.iter().map(|id| *id as i32).collect_vec()); + res.partition(self.partition_value.clone()); + res.build().expect("msg") + }) + .collect_vec()) + } else { + Err(Error::new( + ErrorKind::Unexpected, + "Equality delete inner writer does not exist", + )) + } + } +} + +/// Help to project specific field from `RecordBatch`` according to the column id. +#[derive(Clone)] +pub struct ArrowFieldProjector { Review Comment: This is like an enhanced version of [this method](https://docs.rs/arrow/latest/arrow/record_batch/struct.RecordBatch.html#method.project), which handles nested schema. Also this is too arrow specific, so I would following changes: 1. Move this struct to arrow module 2. We could maintain the logic here for now, but it's better to contribute back to arrow community. 3. I still prefer this to be crate private, as user only need to pass `equality_field_id` list to build the writer config. ########## crates/iceberg/src/writer/base_writer/equality_delete_writer.rs: ########## @@ -0,0 +1,538 @@ +// 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. + +//! This module provide `EqualityDeleteWriter`. + +use std::sync::Arc; + +use arrow_array::{ArrayRef, RecordBatch, StructArray}; +use arrow_schema::{DataType, FieldRef, Fields, Schema, SchemaRef}; +use itertools::Itertools; +use parquet::arrow::PARQUET_FIELD_ID_META_KEY; + +use crate::spec::{DataFile, Struct}; +use crate::writer::file_writer::{FileWriter, FileWriterBuilder}; +use crate::writer::{IcebergWriter, IcebergWriterBuilder}; +use crate::{Error, ErrorKind, Result}; + +/// Builder for `EqualityDeleteWriter`. +#[derive(Clone)] +pub struct EqualityDeleteFileWriterBuilder<B: FileWriterBuilder> { + inner: B, +} + +impl<B: FileWriterBuilder> EqualityDeleteFileWriterBuilder<B> { + /// Create a new `EqualityDeleteFileWriterBuilder` using a `FileWriterBuilder`. + pub fn new(inner: B) -> Self { + Self { inner } + } +} + +/// Config for `EqualityDeleteWriter`. +pub struct EqualityDeleteWriterConfig { + // Field ids used to determine row equality in equality delete files. + equality_ids: Vec<usize>, + // Projector used to project the data chunk into specific fields. + projector: ArrowFieldProjector, + partition_value: Struct, +} + +impl EqualityDeleteWriterConfig { + /// Create a new `DataFileWriterConfig` with equality ids. + pub fn new( + equality_ids: Vec<usize>, + projector: ArrowFieldProjector, + partition_value: Option<Struct>, + ) -> Self { + Self { + equality_ids, + projector, + partition_value: partition_value.unwrap_or(Struct::empty()), + } + } +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriterBuilder for EqualityDeleteFileWriterBuilder<B> { + type R = EqualityDeleteFileWriter<B>; + type C = EqualityDeleteWriterConfig; + + async fn build(self, config: Self::C) -> Result<Self::R> { + Ok(EqualityDeleteFileWriter { + inner_writer: Some(self.inner.clone().build().await?), + projector: config.projector, + equality_ids: config.equality_ids, + partition_value: config.partition_value, + }) + } +} + +/// Writer used to write equality delete files. +pub struct EqualityDeleteFileWriter<B: FileWriterBuilder> { + inner_writer: Option<B::R>, + projector: ArrowFieldProjector, + equality_ids: Vec<usize>, Review Comment: ```suggestion equality_field_ids: Vec<i32>, ``` ########## crates/iceberg/src/writer/base_writer/equality_delete_writer.rs: ########## @@ -0,0 +1,538 @@ +// 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. + +//! This module provide `EqualityDeleteWriter`. + +use std::sync::Arc; + +use arrow_array::{ArrayRef, RecordBatch, StructArray}; +use arrow_schema::{DataType, FieldRef, Fields, Schema, SchemaRef}; +use itertools::Itertools; +use parquet::arrow::PARQUET_FIELD_ID_META_KEY; + +use crate::spec::{DataFile, Struct}; +use crate::writer::file_writer::{FileWriter, FileWriterBuilder}; +use crate::writer::{IcebergWriter, IcebergWriterBuilder}; +use crate::{Error, ErrorKind, Result}; + +/// Builder for `EqualityDeleteWriter`. +#[derive(Clone)] +pub struct EqualityDeleteFileWriterBuilder<B: FileWriterBuilder> { + inner: B, +} + +impl<B: FileWriterBuilder> EqualityDeleteFileWriterBuilder<B> { + /// Create a new `EqualityDeleteFileWriterBuilder` using a `FileWriterBuilder`. + pub fn new(inner: B) -> Self { + Self { inner } + } +} + +/// Config for `EqualityDeleteWriter`. +pub struct EqualityDeleteWriterConfig { + // Field ids used to determine row equality in equality delete files. + equality_ids: Vec<usize>, + // Projector used to project the data chunk into specific fields. + projector: ArrowFieldProjector, + partition_value: Struct, +} + +impl EqualityDeleteWriterConfig { + /// Create a new `DataFileWriterConfig` with equality ids. + pub fn new( + equality_ids: Vec<usize>, + projector: ArrowFieldProjector, + partition_value: Option<Struct>, + ) -> Self { + Self { + equality_ids, + projector, + partition_value: partition_value.unwrap_or(Struct::empty()), + } + } +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriterBuilder for EqualityDeleteFileWriterBuilder<B> { + type R = EqualityDeleteFileWriter<B>; + type C = EqualityDeleteWriterConfig; + + async fn build(self, config: Self::C) -> Result<Self::R> { + Ok(EqualityDeleteFileWriter { + inner_writer: Some(self.inner.clone().build().await?), + projector: config.projector, + equality_ids: config.equality_ids, + partition_value: config.partition_value, + }) + } +} + +/// Writer used to write equality delete files. +pub struct EqualityDeleteFileWriter<B: FileWriterBuilder> { + inner_writer: Option<B::R>, + projector: ArrowFieldProjector, + equality_ids: Vec<usize>, + partition_value: Struct, +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriter for EqualityDeleteFileWriter<B> { + async fn write(&mut self, batch: RecordBatch) -> Result<()> { + let batch = self.projector.project_bacth(batch)?; + if let Some(writer) = self.inner_writer.as_mut() { + writer.write(&batch).await + } else { + Err(Error::new( + ErrorKind::Unexpected, + "Equality delete inner writer does not exist", + )) + } + } + + async fn close(&mut self) -> Result<Vec<DataFile>> { + if let Some(writer) = self.inner_writer.take() { + Ok(writer + .close() + .await? + .into_iter() + .map(|mut res| { + res.content(crate::spec::DataContentType::EqualityDeletes); + res.equality_ids(self.equality_ids.iter().map(|id| *id as i32).collect_vec()); + res.partition(self.partition_value.clone()); + res.build().expect("msg") + }) + .collect_vec()) + } else { + Err(Error::new( + ErrorKind::Unexpected, + "Equality delete inner writer does not exist", + )) + } + } +} + +/// Help to project specific field from `RecordBatch`` according to the fields id. +#[derive(Clone)] +pub struct ArrowFieldProjector { + // A vector of vectors, where each inner vector represents the index path to access a specific field in a nested structure. + // E.g. [[0], [1, 2]] means the first field is accessed directly from the first column, + // while the second field is accessed from the second column and then from its third subcolumn (second column must be a struct column). + field_indices: Vec<Vec<usize>>, + // The schema reference after projection. This schema is derived from the original schema based on the given field IDs. + projected_schema: SchemaRef, +} + +impl ArrowFieldProjector { + /// Init ArrowFieldProjector + pub fn new(original_schema: SchemaRef, field_ids: &[usize]) -> Result<Self> { + let mut field_indexs = Vec::with_capacity(field_ids.len()); + let mut fields = Vec::with_capacity(field_ids.len()); + for &id in field_ids { + let mut field_index = vec![]; + if let Ok(field) = Self::fetch_field_index( + original_schema.fields(), + &mut field_index, + id as i64, + PARQUET_FIELD_ID_META_KEY, + ) { + fields.push(field.clone()); + field_indexs.push(field_index); + } else { + return Err(Error::new( + ErrorKind::DataInvalid, + format!( + "Can't find source column id or column data type invalid: {}", + id + ), + )); + } + } + let delete_arrow_schema = Arc::new(Schema::new(fields)); + Ok(Self { + field_indices: field_indexs, + projected_schema: delete_arrow_schema, + }) + } + + fn fetch_field_index( Review Comment: Use arrow schema visitor to simplify this? ########## crates/iceberg/src/writer/base_writer/equality_delete_writer.rs: ########## @@ -0,0 +1,538 @@ +// 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. + +//! This module provide `EqualityDeleteWriter`. + +use std::sync::Arc; + +use arrow_array::{ArrayRef, RecordBatch, StructArray}; +use arrow_schema::{DataType, FieldRef, Fields, Schema, SchemaRef}; +use itertools::Itertools; +use parquet::arrow::PARQUET_FIELD_ID_META_KEY; + +use crate::spec::{DataFile, Struct}; +use crate::writer::file_writer::{FileWriter, FileWriterBuilder}; +use crate::writer::{IcebergWriter, IcebergWriterBuilder}; +use crate::{Error, ErrorKind, Result}; + +/// Builder for `EqualityDeleteWriter`. +#[derive(Clone)] +pub struct EqualityDeleteFileWriterBuilder<B: FileWriterBuilder> { + inner: B, +} + +impl<B: FileWriterBuilder> EqualityDeleteFileWriterBuilder<B> { + /// Create a new `EqualityDeleteFileWriterBuilder` using a `FileWriterBuilder`. + pub fn new(inner: B) -> Self { + Self { inner } + } +} + +/// Config for `EqualityDeleteWriter`. +pub struct EqualityDeleteWriterConfig { + // Field ids used to determine row equality in equality delete files. + equality_ids: Vec<usize>, + // Projector used to project the data chunk into specific fields. + projector: ArrowFieldProjector, + partition_value: Struct, +} + +impl EqualityDeleteWriterConfig { + /// Create a new `DataFileWriterConfig` with equality ids. + pub fn new( + equality_ids: Vec<usize>, + projector: ArrowFieldProjector, + partition_value: Option<Struct>, + ) -> Self { + Self { + equality_ids, + projector, + partition_value: partition_value.unwrap_or(Struct::empty()), + } + } +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriterBuilder for EqualityDeleteFileWriterBuilder<B> { + type R = EqualityDeleteFileWriter<B>; + type C = EqualityDeleteWriterConfig; + + async fn build(self, config: Self::C) -> Result<Self::R> { + Ok(EqualityDeleteFileWriter { + inner_writer: Some(self.inner.clone().build().await?), + projector: config.projector, + equality_ids: config.equality_ids, + partition_value: config.partition_value, + }) + } +} + +/// Writer used to write equality delete files. +pub struct EqualityDeleteFileWriter<B: FileWriterBuilder> { + inner_writer: Option<B::R>, + projector: ArrowFieldProjector, + equality_ids: Vec<usize>, + partition_value: Struct, +} + +#[async_trait::async_trait] +impl<B: FileWriterBuilder> IcebergWriter for EqualityDeleteFileWriter<B> { + async fn write(&mut self, batch: RecordBatch) -> Result<()> { + let batch = self.projector.project_bacth(batch)?; + if let Some(writer) = self.inner_writer.as_mut() { + writer.write(&batch).await + } else { + Err(Error::new( + ErrorKind::Unexpected, + "Equality delete inner writer does not exist", Review Comment: ```suggestion "Equality delete inner writer has been closed.", ``` ########## crates/iceberg/src/writer/base_writer/equality_delete_writer.rs: ########## @@ -0,0 +1,538 @@ +// 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. + +//! This module provide `EqualityDeleteWriter`. + +use std::sync::Arc; + +use arrow_array::{ArrayRef, RecordBatch, StructArray}; +use arrow_schema::{DataType, FieldRef, Fields, Schema, SchemaRef}; +use itertools::Itertools; +use parquet::arrow::PARQUET_FIELD_ID_META_KEY; + +use crate::spec::{DataFile, Struct}; +use crate::writer::file_writer::{FileWriter, FileWriterBuilder}; +use crate::writer::{IcebergWriter, IcebergWriterBuilder}; +use crate::{Error, ErrorKind, Result}; + +/// Builder for `EqualityDeleteWriter`. +#[derive(Clone)] +pub struct EqualityDeleteFileWriterBuilder<B: FileWriterBuilder> { + inner: B, +} + +impl<B: FileWriterBuilder> EqualityDeleteFileWriterBuilder<B> { + /// Create a new `EqualityDeleteFileWriterBuilder` using a `FileWriterBuilder`. + pub fn new(inner: B) -> Self { + Self { inner } + } +} + +/// Config for `EqualityDeleteWriter`. +pub struct EqualityDeleteWriterConfig { + // Field ids used to determine row equality in equality delete files. + equality_ids: Vec<usize>, + // Projector used to project the data chunk into specific fields. + projector: ArrowFieldProjector, + partition_value: Struct, +} + +impl EqualityDeleteWriterConfig { + /// Create a new `DataFileWriterConfig` with equality ids. + pub fn new( + equality_ids: Vec<usize>, + projector: ArrowFieldProjector, Review Comment: I think user doesn't need to pass this, they just need to pass original iceberg schema. -- This is an automated message from the Apache Git Service. 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