refactor: fix unit tests

Signed-off-by: ClSlaid <cailue@bupt.edu.cn>

Author: ClSlaid

src/query/ast/tests/it/testdata/statement.txt

@@ -6,6 +6,7 @@ SHOW DATABASES
 ShowDatabases(
     ShowDatabasesStmt {
         catalog: None,
+        full: false,
         limit: None,
     },
 )
@@ -19,6 +20,7 @@ SHOW DATABASES
 ShowDatabases(
     ShowDatabasesStmt {
         catalog: None,
+        full: false,
         limit: None,
     },
 )

src/query/service/tests/it/servers/http/http_query_handlers.rs

@@ -184,9 +184,10 @@ async fn test_simple_sql() -> Result<()> {
     assert_eq!(status, StatusCode::OK, "{:?}", result);
     assert!(result.error.is_none(), "{:?}", result);
     assert!(result.schema.is_some(), "{:?}", result);
+    // has only one column
     assert_eq!(
         result.schema.as_ref().unwrap().fields().len(),
-        2,
+        1,
         "{:?}",
         result
     );
@@ -202,6 +203,20 @@ async fn test_show_databases() -> Result<()> {
     assert_eq!(status, StatusCode::OK, "{:?}", result);
     assert!(result.error.is_none(), "{:?}", result);
     assert!(result.schema.is_some(), "{:?}", result);
+    // has only one field: name
+    assert_eq!(
+        result.schema.as_ref().unwrap().fields().len(),
+        1,
+        "{:?}",
+        result
+    );
+
+    let sql = "show full databases";
+    let (status, result) = post_sql(sql, 1).await?;
+    assert_eq!(status, StatusCode::OK, "{:?}", result);
+    assert!(result.error.is_none(), "{:?}", result);
+    assert!(result.schema.is_some(), "{:?}", result);
+    // has two fields: catalog, name
     assert_eq!(
         result.schema.as_ref().unwrap().fields().len(),
         2,