scovich commented on code in PR #8006:
URL: https://github.com/apache/arrow-rs/pull/8006#discussion_r2254342687
##########
arrow-avro/src/reader/mod.rs:
##########
@@ -124,23 +132,26 @@ fn read_header<R: BufRead>(mut reader: R) ->
Result<Header, ArrowError> {
/// A low-level interface for decoding Avro-encoded bytes into Arrow
`RecordBatch`.
#[derive(Debug)]
pub struct Decoder {
- record_decoder: RecordDecoder,
+ active_decoder: RecordDecoder,
+ active_fingerprint: Option<Fingerprint>,
batch_size: usize,
- decoded_rows: usize,
+ remaining_capacity: usize,
+ #[cfg(feature = "lru")]
+ cache: LruCache<Fingerprint, RecordDecoder>,
+ #[cfg(not(feature = "lru"))]
+ cache: IndexMap<Fingerprint, RecordDecoder>,
+ max_cache_size: usize,
+ reader_schema: Option<AvroSchema<'static>>,
+ writer_schema_store: Option<SchemaStore<'static>>,
Review Comment:
Nice! The only downside is, it has to deserialize (albeit in place) every
time we access the schema; it would be nice if there were a way to capture and
cache the result (alongside the backing string), but that's where lifetimes get
really messy unless you're willing to resort to tricks like interior mutability.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
