bump opensrv-mysql 0.9.0

Author: TCeason

Cargo.lock

@@ -418,7 +418,7 @@ openraft = { version = "0.10.0", features = [
     "serde",
     "tracing-log",
 ] }
-opensrv-mysql = { path = "../opensrv/mysql", features = ["tls"] }
+opensrv-mysql = { git = "https://github.com/databendlabs/opensrv.git", tag = "v0.9.0", features = ["tls"] }
 orc-rust = "0.6.0"
 ordered-float = { version = "5.0.0", default-features = false }
 ordq = "0.2.0"

Cargo.toml

@@ -401,7 +401,7 @@ impl InteractiveWorkerBase {
                 if data_block.num_rows() > 0 {
                     info!("Federated response: {:?}", data_block);
                 }
-                let has_result = schema.fields().len() > 0 || data_block.num_columns() > 0;
+                let has_result = !schema.fields().is_empty() || data_block.num_columns() > 0;
                 Ok((
                     QueryResult::create(
                         DataBlockStream::create(None, vec![data_block]).boxed(),

src/query/service/src/servers/mysql/mysql_interactive_worker.rs

@@ -241,8 +241,7 @@ impl<'a, W: AsyncWrite + Send + Unpin> DFQueryResultWriter<'a, W> {
 
         fn column_length(field: &DataField) -> u32 {
             let length = compute_length(field.data_type());
-            let length = length.max(1).min(16382);
-            length
+            length.clamp(1, 16382)
         }
 
         fn make_column_from_field(field: &DataField) -> Result<Column> {

src/query/service/src/servers/mysql/writers/query_result_writer.rs

@@ -58,7 +58,7 @@ const CHARACTER_SETS: &[(&str, &str, &str, u8)] = &[
     ("gbk", "gbk_chinese_ci", "GBK Simplified Chinese", 2),
     ("latin5", "latin5_turkish_ci", "ISO 8859-9 Turkish", 1),
     ("armscii8", "armscii8_general_ci", "ARMSCII-8 Armenian", 1),
-    ("utf8mb3", "utf8mb3_general_ci", "UTF-8 Unicode", 3),
+    ("utf8", "utf8_general_ci", "UTF-8 Unicode", 3),
     ("ucs2", "ucs2_general_ci", "UCS-2 Unicode", 2),
     ("cp866", "cp866_general_ci", "DOS Russian", 1),
     (