feat!: drop the wa-37420 feature

.github/workflows/ci.yml

@@ -41,6 +41,7 @@ jobs:
     - run: cargo test
     - run: cargo test --no-default-features
     - run: cargo test --features uuid,time
+    - run: cargo test --all-features
 
     services:
       clickhouse:

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - derive: support `serde::skip_deserializing` ([#83]).
 
 ### Changed
+- **BREAKING** drop the `wa-37420` feature.
 - derive: move to syn v2.
 
 ### Fixed

Cargo.toml

@@ -43,9 +43,6 @@ uuid = ["dep:uuid"]
 time = ["dep:time"]
 tls = ["dep:hyper-tls"]
 
-# Temporary workaround for https://github.com/ClickHouse/ClickHouse/issues/37420
-wa-37420 = []
-
 [dependencies]
 clickhouse-derive = { version = "0.1.1", path = "derive" }
 

README.md

@@ -43,7 +43,7 @@ clickhouse = { version = "0.11.6", features = ["test-util"] }
 
 </summary>
 
-CH server older than v22.6 (2022-06-16) handles `RowBinary` [incorrectly](https://github.com/ClickHouse/ClickHouse/issues/37420) in some rare cases. Enable `wa-37420` feature to solve this problem. Don't use it for newer versions.
+CH server older than v22.6 (2022-06-16) handles `RowBinary` [incorrectly](https://github.com/ClickHouse/ClickHouse/issues/37420) in some rare cases. Use 0.11 and enable `wa-37420` feature to solve this problem. Don't use it for newer versions.
 
 </details>
 <details>

src/insert.rs

@@ -25,8 +25,6 @@ const MIN_CHUNK_SIZE: usize = BUFFER_SIZE - 1024; // slightly less to avoid extr
 #[must_use]
 pub struct Insert<T> {
     buffer: BytesMut,
-    #[cfg(feature = "wa-37420")]
-    chunk_count: usize,
     sender: Option<body::Sender>,
     #[cfg(feature = "lz4")]
     compression: Compression,
@@ -102,8 +100,6 @@ impl<T> Insert<T> {
 
         Ok(Self {
             buffer: BytesMut::with_capacity(BUFFER_SIZE),
-            #[cfg(feature = "wa-37420")]
-            chunk_count: 0,
             sender: Some(sender),
             #[cfg(feature = "lz4")]
             compression: client.compression,
@@ -189,10 +185,6 @@ impl<T> Insert<T> {
             return Ok(());
         }
 
-        // A temporary workaround for https://github.com/ClickHouse/ClickHouse/issues/37420.
-        #[cfg(feature = "wa-37420")]
-        self.prepend_bom();
-
         // Hyper uses non-trivial and inefficient schema of buffering chunks.
         // It's difficult to determine when allocations occur.
         // So, instead we control it manually here and rely on the system allocator.
@@ -250,18 +242,6 @@ impl<T> Insert<T> {
         Ok(mem::replace(&mut self.buffer, BytesMut::with_capacity(BUFFER_SIZE)).freeze())
     }
 
-    #[cfg(feature = "wa-37420")]
-    fn prepend_bom(&mut self) {
-        if self.chunk_count == 0 && self.buffer.starts_with(&[0xef, 0xbb, 0xbf]) {
-            let mut new_chunk = BytesMut::with_capacity(self.buffer.len() + 3);
-            new_chunk.extend_from_slice(&[0xef, 0xbb, 0xbf]);
-            new_chunk.extend_from_slice(&self.buffer);
-            self.buffer = new_chunk;
-        }
-
-        self.chunk_count += 1;
-    }
-
     fn abort(&mut self) {
         if let Some(sender) = self.sender.take() {
             sender.abort();

tests/it/main.rs

@@ -14,7 +14,6 @@ mod nested;
 mod query;
 mod time;
 mod uuid;
-mod wa_37420;
 mod watch;
 
 const HOST: &str = "localhost:8123";