General support for metadata columns + implementation for _pos#1791
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vustef wants to merge 8 commits intoapache:mainfrom
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General support for metadata columns + implementation for _pos#1791vustef wants to merge 8 commits intoapache:mainfrom
_pos#1791vustef wants to merge 8 commits intoapache:mainfrom
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Update from upstream
…lds at arrow-rs 57.0
vustef
commented
Oct 27, 2025
| /// | ||
| /// Metadata columns are virtual columns that provide metadata about the rows, | ||
| /// such as file paths or row positions. These come from https://iceberg.apache.org/spec/#identifier-field-ids | ||
| pub fn with_metadata_columns(mut self, metadata_columns: Vec<String>) -> Self { |
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Need some validation here, for allowed column names. Or type safety, to pick columns from enum (possibly preventing duplication?)
liurenjie1024
suggested changes
Nov 6, 2025
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Similar comments here: #1824 (review)
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Blueprint of how we're thinking about this: RelationalAI#14 |
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Which issue does this PR close?
#1765
What changes are included in this PR?
Are these changes tested?