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add support for binary format in tuple data #28

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Merged
merged 1 commit into from
Nov 28, 2024
Merged

add support for binary format in tuple data #28

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9 changes: 9 additions & 0 deletions postgres-replication/src/protocol.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ const TUPLE_OLD_TAG: u8 = b'O';
const TUPLE_DATA_NULL_TAG: u8 = b'n';
const TUPLE_DATA_TOAST_TAG: u8 = b'u';
const TUPLE_DATA_TEXT_TAG: u8 = b't';
const TUPLE_DATA_BINARY_TAG: u8 = b'b';

// replica identity tags
const REPLICA_IDENTITY_DEFAULT_TAG: u8 = b'd';
Expand Down Expand Up @@ -428,6 +429,8 @@ pub enum TupleData {
UnchangedToast,
/// Column data as text formatted value.
Text(Bytes),
/// Column data as binary formatted value.
Binary(Bytes),
}

impl TupleData {
Expand All @@ -443,6 +446,12 @@ impl TupleData {
buf.read_exact(&mut data)?;
TupleData::Text(data.into())
}
TUPLE_DATA_BINARY_TAG => {
let len = buf.read_i32::<BigEndian>()?;
let mut data = vec![0; len as usize];
buf.read_exact(&mut data)?;
TupleData::Binary(data.into())
}
tag => {
return Err(io::Error::new(
io::ErrorKind::InvalidInput,
Expand Down
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