Merge pull request #84 from halcyon-tech:issue83

Fix errors when certain SQL statements return no result set

Author: worksofliam

src/connection/serverComponent.ts

@@ -14,7 +14,7 @@ const octokit = new Octokit();
 
 // During development, you can set the SERVER_VERSION in .vscode/launch.json
 // Otherwise, fall back to the working version
-const SERVER_VERSION = process.env[`SERVER_VERSION`] || `v1.0.0-alpha-32`;
+const SERVER_VERSION = process.env[`SERVER_VERSION`] || `v1.0.0-alpha-33`;
 
 const ExecutablePathDir = `$HOME/.vscode/`;
 
@@ -185,4 +185,4 @@ function downloadFile(url, outputPath) {
   return fetch(url)
       .then(x => x.arrayBuffer())
       .then(x => writeFile(outputPath, Buffer.from(x)));
-}
+}

src/connection/types.ts

@@ -41,6 +41,7 @@ export interface SetConfigResult extends ServerResponse {
 export interface QueryResult<T> extends ServerResponse {
   metadata: QueryMetaData,
   is_done: boolean;
+  has_results: boolean;
   data: T[];
 }
 

src/testing/jobs.ts

@@ -113,6 +113,19 @@ export const JobsSuite: TestSuite = {
       newJob.close();
     }},
 
+    {name: `SQL with no result set`, test: async () => {
+      assert.strictEqual(ServerComponent.isInstalled(), true);
+  
+      let newJob = new SQLJob();
+      await newJob.connect();
+
+      let result = await newJob.query(`create or replace table qtemp.tt as (select * from sysibm.sysdummy1) with data on replace delete rows`).run();
+      assert.equal(result.success, true);
+      assert.equal(result.has_results, false);
+      assert.equal(result.data, undefined);
+      newJob.close();
+    }},
+
     {name: `CL Command (success)`, test: async () => {
       assert.strictEqual(ServerComponent.isInstalled(), true);