etseidl commented on code in PR #8797:
URL: https://github.com/apache/arrow-rs/pull/8797#discussion_r2535339586
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parquet/src/file/metadata/options.rs:
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@@ -48,11 +70,70 @@ impl ParquetMetaDataOptions {
self.schema_descr = Some(val);
}
- /// Provide a schema to use when decoding the metadata. Returns `Self` for
chaining.
- pub fn with_schema(mut self, val: SchemaDescPtr) -> Self {
- self.schema_descr = Some(val);
- self
+ // with_schema
+ add_mutator!(schema, SchemaDescPtr);
+
+ /// Returns whether to present the `encoding_stats` field of the
`ColumnMetaData` as a
+ /// bitmask.
+ ///
+ /// See [`ColumnChunkMetaData::page_encoding_stats_mask`] for an
explanation of why this
+ /// might be desirable.
+ ///
+ /// [`ColumnChunkMetaData::page_encoding_stats_mask`]:
+ /// crate::file::metadata::ColumnChunkMetaData::page_encoding_stats_mask
+ pub fn encoding_stats_as_mask(&self) -> bool {
+ self.encoding_stats_as_mask
+ }
+
+ /// Convert `encoding_stats` from a vector of [`PageEncodingStats`] to a
bitmask. This can
+ /// speed up metadata decoding while still enabling some use cases served
by the full stats.
+ ///
+ /// See [`ColumnChunkMetaData::page_encoding_stats_mask`] for more
information.
+ ///
+ /// [`PageEncodingStats`]: crate::file::metadata::PageEncodingStats
+ /// [`ColumnChunkMetaData::page_encoding_stats_mask`]:
+ /// crate::file::metadata::ColumnChunkMetaData::page_encoding_stats_mask
+ pub fn set_encoding_stats_as_mask(&mut self, val: bool) {
+ self.encoding_stats_as_mask = val;
}
+
+ // with_encoding_stats_as_mask
+ add_mutator!(encoding_stats_as_mask, bool);
Review Comment:
I removed the macro and replaced the multiple setters for stats skipping
with a policy enum
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