diff --git a/src/connector/src/parser/chunk_builder.rs b/src/connector/src/parser/chunk_builder.rs
index 80a7c38b84450..d8f7037a73143 100644
--- a/src/connector/src/parser/chunk_builder.rs
+++ b/src/connector/src/parser/chunk_builder.rs
@@ -79,7 +79,7 @@ impl SourceStreamChunkBuilder {
     /// Resets the builder and returns a [`StreamChunk`], while reserving `next_cap` capacity for
     /// the builders of the next [`StreamChunk`].
     #[must_use]
-    pub fn take(&mut self, next_cap: usize) -> StreamChunk {
+    pub fn take_and_reserve(&mut self, next_cap: usize) -> StreamChunk {
         let descs = std::mem::take(&mut self.descs); // we don't use `descs` in `finish`
         let builder = std::mem::replace(self, Self::with_capacity(descs, next_cap));
         builder.finish()
diff --git a/src/connector/src/parser/mod.rs b/src/connector/src/parser/mod.rs
index ede6d426a78f3..e6d4d5c5588b1 100644
--- a/src/connector/src/parser/mod.rs
+++ b/src/connector/src/parser/mod.rs
@@ -302,7 +302,7 @@ async fn into_chunk_stream_inner<P: ByteStreamSourceParser>(
                 // for the sake of simplicity, let's force emit the partial transaction chunk
                 if *len > 0 {
                     *len = 0; // reset `len` while keeping `id`
-                    yield chunk_builder.take(1); // next chunk will only contain the heartbeat
+                    yield chunk_builder.take_and_reserve(1); // next chunk will only contain the heartbeat
                 }
             }
 
@@ -323,7 +323,7 @@ async fn into_chunk_stream_inner<P: ByteStreamSourceParser>(
                     offset: &heartbeat_msg.offset,
                 },
             ));
-            yield chunk_builder.take(batch_len);
+            yield chunk_builder.take_and_reserve(batch_len);
 
             continue;
         }
@@ -420,7 +420,7 @@ async fn into_chunk_stream_inner<P: ByteStreamSourceParser>(
                         current_transaction = None;
 
                         if txn_started_in_last_batch {
-                            yield chunk_builder.take(batch_len - (i + 1));
+                            yield chunk_builder.take_and_reserve(batch_len - (i + 1));
                             txn_started_in_last_batch = false;
                         }
                     }
@@ -460,12 +460,12 @@ async fn into_chunk_stream_inner<P: ByteStreamSourceParser>(
                     "transaction is larger than {MAX_TRANSACTION_SIZE} rows, force commit"
                 );
                 *len = 0; // reset `len` while keeping `id`
-                yield chunk_builder.take(batch_len); // use curr batch len as next capacity, just a hint
+                yield chunk_builder.take_and_reserve(batch_len); // use curr batch len as next capacity, just a hint
             }
             // TODO(rc): we will have better chunk size control later
         } else if !chunk_builder.is_empty() {
             // not in transaction, yield the chunk now
-            yield chunk_builder.take(batch_len); // use curr batch len as next capacity, just a hint
+            yield chunk_builder.take_and_reserve(batch_len); // use curr batch len as next capacity, just a hint
         }
     }
 }
diff --git a/src/connector/src/parser/plain_parser.rs b/src/connector/src/parser/plain_parser.rs
index 86a1d3d831b6c..1144fdf00fe4b 100644
--- a/src/connector/src/parser/plain_parser.rs
+++ b/src/connector/src/parser/plain_parser.rs
@@ -451,7 +451,7 @@ mod tests {
             _ => panic!("unexpected parse result: {:?}", res),
         }
 
-        let output = builder.take(10);
+        let output = builder.take_and_reserve(10);
         assert_eq!(0, output.cardinality());
     }