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docs: Document missing write table properties in configuration - #3879
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kevinjqliu merged 4 commits intoOct 24, 2026
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Fokko
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The write-options table omitted several properties that PyIceberg reads
when writing, including write.target-file-size-bytes, write.format.default,
write.avro.compression-codec, the Parquet row-group/bloom-filter sizes,
the column metrics-mode properties and write.summary.partition-limit. Add
rows for them and fix a typo ("coddec" -> "codec") in the existing
compression-codec entry.
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@Fokko can you put this in the merge queue? Looks like you set it to automerge last month + it never made its way through |
rambleraptor
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Looks great, let's get this merged!
PyIceberg ignores write.parquet.row-group-size-bytes and the bloom-filter properties, emitting a "not implemented" warning when they are set. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Clarify how write.target-file-size-bytes is measured, what each metrics mode collects, which files the Avro codec applies to, and that the default write.summary.partition-limit of 0 disables partition summaries. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
kevinjqliu
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October 24, 2026 17:56
The none mode still records column sizes, and nested fields are capped at counts regardless of the configured mode. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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The write-options table omitted several properties that PyIceberg reads when writing, including write.target-file-size-bytes, write.format.default, write.avro.compression-codec, the Parquet row-group/bloom-filter sizes, the column metrics-mode properties and write.summary.partition-limit. Add rows for them and fix a typo ("coddec" -> "codec") in the existing compression-codec entry.
Rationale for this change
Are these changes tested?
these are changes in the md file which do not require testing
Are there any user-facing changes?