Partition Writer Support Part 1: add partition splitter #1040
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This PR may conflict with #1014. But I'm not sure whether #1014 can be reviewed and merge recently. I'm ok to merge any one first and I will fix the conflict later. cc @liurenjie1024 @jonathanc-n @Fokko @Xuanwo @sdd |
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@ZENOTME I should be able to take a look at this tomorrow |
| // # TODO | ||
| // Remove this after partition writer supported. | ||
| #[allow(dead_code)] | ||
| pub struct RecordBatchPartitionsplitter { |
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| pub struct RecordBatchPartitionsplitter { | |
| pub struct RecordBatchPartitionSplitter { |
| partition_batches.push(( | ||
| row, | ||
| filter_record_batch(batch, &filter_array) | ||
| .expect("We should guarantee the filter array is valid"), |
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prefer to propogate error instead of expect
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This PR is ready to review. cc @liurenjie1024 @Fokko @Xuanwo @sdd |
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Hi @jonathanc-n & @ZENOTME |
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@ranjanankur314 I will try my best to give it another review today. At the end of the day we will need a committer's review |
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Hi, I think this PR is ready to review. cc @liurenjie1024 @Xuanwo @Fokko @kevinjqliu @sdd |
| } | ||
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| /// Split the record batch into multiple record batches according to provided partition columns. | ||
| pub fn split_by_partition( |
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Why this have to be pub?
| &self, | ||
| batch: &RecordBatch, | ||
| partition_columns: &[ArrayRef], | ||
| ) -> Result<Vec<(OwnedRow, RecordBatch)>> { |
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Should we use Struct to replace OwnedRow? I assume the partitioned writer needs Struct?
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Good catch! I noticed that out Struct support Hash, so we don't need OwnedRow. I have remove them and use Struct directlty.
| } | ||
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| /// Convert row back to iceberg value. | ||
| pub fn convert_row(&self, rows: Vec<OwnedRow>) -> Result<Vec<Struct>> { |
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Do we really need this function? Why not just convert partition value columnar batch into Vec<Struct>
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| let partition_type = self.partition_spec.partition_type(&self.schema)?; | ||
| let partition_arrow_type = type_to_arrow_type(&Type::Struct(partition_type.clone()))?; |
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Do we need to do this conversion for each batch?
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4 participants
Which issue does this PR close?
This PR is part 1 to close #342.
What changes are included in this PR?
The partition writer support will be separate into three PR:
This PR is the first part.
Are these changes tested?