fix: mysql driver logic for multiple query rendering

Author: cmoog

package.json

@@ -7,7 +7,7 @@
   "repository": {
     "url": "https://github.com/cmoog/vscode-sql-notebook"
   },
-  "version": "0.5.0",
+  "version": "0.5.1",
   "preview": false,
   "engines": {
     "vscode": "^1.59.0"

src/driver.ts

@@ -112,8 +112,9 @@ function mysqlConn(conn: mysql.PoolConnection, queryTimeout: number): Conn {
         return [[result]];
       }
 
-      // this reliably indicates whether there are results for multiple distinct queries
-      const hasMultipleResults = ok.length > 1;
+      // this indicates whether there are results for multiple distinct queries
+      const hasMultipleResults =
+        ok.length > 1 && ok.some((a: any) => a?.length);
       if (hasMultipleResults) {
         // when we have `ResultSetHeader`, which is the result of an exec request,
         // we want to nest that into an array so that is display as a single row table