From 49d54be06e717b56a07e692d0ebc1f3a88258f57 Mon Sep 17 00:00:00 2001
From: shuiyisong <xixing.sys@gmail.com>
Date: Mon, 6 Nov 2023 11:13:32 +0800
Subject: [PATCH] chore: fix cr issue

---
 src/cmd/src/cli/export.rs | 39 ++++++++++++++++++---------------------
 1 file changed, 18 insertions(+), 21 deletions(-)

diff --git a/src/cmd/src/cli/export.rs b/src/cmd/src/cli/export.rs
index e9d67875cd21..fabebe8ebdeb 100644
--- a/src/cmd/src/cli/export.rs
+++ b/src/cmd/src/cli/export.rs
@@ -12,7 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::fmt::Write;
 use std::path::Path;
 use std::sync::Arc;
 
@@ -349,28 +348,26 @@ impl Export {
                     Path::new(&self.output_dir).join(format!("{catalog}-{schema}_copy_from.sql"));
                 let mut file = File::create(copy_from_file).await.context(FileIoSnafu)?;
 
-                let copy_from_sql =
-                    dir_filenames
-                        .into_iter()
-                        .fold(String::new(), |mut acc, file| {
-                            let file = file.unwrap();
-                            let table_name = file
-                                .file_name()
-                                .into_string()
-                                .unwrap()
-                                .replace(".parquet", "");
-                            let _ = writeln!(
-                                acc,
-                                "copy {} from '{}' with (format='parquet');",
-                                table_name,
-                                file.path().to_str().unwrap()
-                            );
-                            acc
-                        });
-
-                file.write_all(copy_from_sql.as_bytes())
+                for table_file in dir_filenames {
+                    let table_file = table_file.unwrap();
+                    let table_name = table_file
+                        .file_name()
+                        .into_string()
+                        .unwrap()
+                        .replace(".parquet", "");
+
+                    file.write(
+                        format!(
+                            "copy {} from '{}' with (format='parquet');\n",
+                            table_name,
+                            table_file.path().to_str().unwrap()
+                        )
+                        .as_bytes(),
+                    )
                     .await
                     .context(FileIoSnafu)?;
+                    file.flush().await.context(FileIoSnafu)?;
+                }
 
                 info!("finished exporting {catalog}.{schema} copy_from.sql");