wForget commented on code in PR #10133:
URL: https://github.com/apache/arrow-rs/pull/10133#discussion_r3471714404
##########
arrow-ipc/src/writer.rs:
##########
@@ -166,6 +168,43 @@ impl IpcWriteOptions {
}
Ok(self)
}
+
+ /// Configures the compression level used when writing compressed IPC
batches.
+ ///
+ /// Compression levels require metadata V5 or newer and are currently only
+ /// supported for ZSTD compression.
+ pub fn try_with_compression_level(
+ mut self,
+ batch_compression_level: Option<i32>,
+ ) -> Result<Self, ArrowError> {
+ self.batch_compression_level = batch_compression_level;
+
+ if self.batch_compression_level.is_some()
+ && self.metadata_version < crate::MetadataVersion::V5
+ {
+ return Err(ArrowError::InvalidArgumentError(
+ "Compression only supported in metadata v5 and
above".to_string(),
+ ));
+ }
+
+ match (self.batch_compression_type, self.batch_compression_level) {
+ (Some(crate::CompressionType::ZSTD), Some(level)) if
!(-999..=22).contains(&level) => {
Review Comment:
Thanks, changed
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