improvements and fixing of the tests

server/src/table_definition/handlers/post_table_definition.rs

@@ -104,7 +104,21 @@ pub async fn post_table_definition(
     db_pool: &PgPool,
     request: PostTableDefinitionRequest,
 ) -> Result<TableDefinitionResponse, Status> {
+    if request.profile_name.trim().is_empty() {
+        return Err(Status::invalid_argument("Profile name cannot be empty"));
+    }
+
+    const MAX_IDENTIFIER_LENGTH: usize = 63;
+
     let base_name = sanitize_table_name(&request.table_name);
+    if base_name.len() > MAX_IDENTIFIER_LENGTH {
+        return Err(Status::invalid_argument(format!(
+            "Identifier '{}' exceeds the {} character limit.",
+            base_name,
+            MAX_IDENTIFIER_LENGTH
+        )));
+    }
+
     let user_part_cleaned = request.table_name
         .replace(|c: char| !c.is_ascii_alphanumeric() && c != '_', "")
         .trim_matches('_')
@@ -179,6 +193,9 @@ async fn execute_table_definition(
         if !is_valid_identifier(&col_def.name) {
             return Err(Status::invalid_argument("Invalid column name"));
         }
+        if col_name.ends_with("_id") || col_name == "id" || col_name == "deleted" || col_name == "created_at" {
+            return Err(Status::invalid_argument("Invalid column name"));
+        }
         let sql_type = map_field_type(&col_def.field_type)?;
         columns.push(format!("\"{}\" {}", col_name, sql_type));
     }