diff --git a/test/test316.js b/test/test316.js
index c96ec74d28..f8565eb346 100644
--- a/test/test316.js
+++ b/test/test316.js
@@ -6,7 +6,7 @@ if (typeof exports === 'object') {
 }
 
 describe('Test 316 UNION ALL', function () {
-	it.skip('1. SEARCH DISTINCT', function (done) {
+	it('1. SEARCH DISTINCT', function (done) {
 		var data = [{a: 10}, {a: 100}, {a: 10}, {a: 100}, {a: 10}];
 
 		var res = alasql('SEARCH DISTINCT(/ a) FROM ?', [data]);
@@ -15,7 +15,7 @@ describe('Test 316 UNION ALL', function () {
 		done();
 	});
 
-	it.skip('2. Simple UNION ALL', function (done) {
+	it('2. Simple UNION ALL', function (done) {
 		var data = [{a: 10}, {b: 100}, {a: 5}];
 
 		var res = alasql('SEARCH UNION ALL(/a,/b) ORDER BY() FROM ?', [data]);
diff --git a/test/test322.js b/test/test322.js
index fe0d147faf..8140d12225 100644
--- a/test/test322.js
+++ b/test/test322.js
@@ -6,12 +6,12 @@ if (typeof exports === 'object') {
 }
 
 describe('Test 322 UNION TEST', function () {
-	it.skip('1. CREATE DATABASE', function (done) {
+	it('1. CREATE DATABASE', function (done) {
 		alasql('CREATE DATABASE test322; USE test322');
 		done();
 	});
 
-	it.skip('2. UNION ALL', function (done) {
+	it('2. UNION ALL', function (done) {
 		alasql.options.modifier = undefined;
 
 		var data = [{a: 1}, {a: 2}, {a: 2}, {b: 2}];
@@ -42,7 +42,7 @@ describe('Test 322 UNION TEST', function () {
 		done();
 	});
 
-	it.skip('3. SEARCH UNION', function (done) {
+	it('3. SEARCH UNION', function (done) {
 		var data = [{a: 1}, {a: 2}, {a: 2}, {b: 2}];
 
 		var res = alasql('SEARCH UNION(/a,/b) FROM ?', [data]);
@@ -50,7 +50,7 @@ describe('Test 322 UNION TEST', function () {
 		done();
 	});
 
-	it.skip('99. DROP DATABASE', function (done) {
+	it('99. DROP DATABASE', function (done) {
 		alasql('DROP DATABASE test322');
 		done();
 	});
diff --git a/test/test338.js b/test/test338.js
index bcbcc6de3b..bd6cececba 100644
--- a/test/test338.js
+++ b/test/test338.js
@@ -11,12 +11,12 @@ if (typeof exports === 'object') {
 //
 
 describe('Test 338 EXTRACT', function () {
-	it.skip('1. CREATE DATABASE', function (done) {
+	it('1. CREATE DATABASE', function (done) {
 		alasql('CREATE DATABASE test338;USE test338');
 		done();
 	});
 
-	it.skip('2. SAMPLE', function (done) {
+	it('2. SAMPLE', function (done) {
 		var res = alasql(function () {
 			/*
 
@@ -36,7 +36,7 @@ select * from b;
 		done();
 	});
 
-	it.skip('2. EXCEPT', function (done) {
+	it('2. EXCEPT', function (done) {
 		var res = alasql(function () {
 			/*
 
@@ -53,7 +53,7 @@ select top 3 b.col from b order by b.col desc;
 		done();
 	});
 
-	it.skip('3. EXCEPT', function (done) {
+	it('3. EXCEPT', function (done) {
 		var res = alasql(function () {
 			/*
     
@@ -72,7 +72,7 @@ select col from cte_for_b;
 		done();
 	});
 
-	it.skip('3. DROP TABLES', function (done) {
+	it('3. DROP TABLES', function (done) {
 		var res = alasql(function () {
 			/*
 
@@ -87,7 +87,7 @@ drop table b;
 		done();
 	});
 
-	it.skip('99. DROP DATABASE', function (done) {
+	it('99. DROP DATABASE', function (done) {
 		alasql('DROP DATABASE test338');
 		done();
 	});
diff --git a/test/test339.js b/test/test339.js
index aad1e6c075..177cfb83c5 100644
--- a/test/test339.js
+++ b/test/test339.js
@@ -6,13 +6,13 @@ if (typeof exports === 'object') {
 }
 
 describe('Test 339 UNION EXTRACT INTERSECT', function () {
-	it.skip('1. CREATE DATABASE', function (done) {
+	it('1. CREATE DATABASE', function (done) {
 		alasql('CREATE DATABASE test339;USE test339');
 		alasql.options.modifier = 'COLUMN';
 		done();
 	});
 
-	it.skip('2. CREATE TABLE', function (done) {
+	it('2. CREATE TABLE', function (done) {
 		var res = alasql(function () {
 			/*
 
@@ -32,7 +32,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('3. UNION', function (done) {
+	it('3. UNION', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -45,7 +45,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('4. UNION ALL', function (done) {
+	it('4. UNION ALL', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -58,7 +58,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('5. EXCEPT', function (done) {
+	it('5. EXCEPT', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -70,7 +70,7 @@ insert into c (col) values (1), (2), (5);
 		assert.deepEqual(res.sort(), [3]);
 		done();
 	});
-	it.skip('6. INTERSECT', function (done) {
+	it('6. INTERSECT', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -83,7 +83,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('7. INTERSECT', function (done) {
+	it('7. INTERSECT', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -96,7 +96,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('8. UNION UNION', function (done) {
+	it('8. UNION UNION', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -111,7 +111,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('9. UNION EXCEPT', function (done) {
+	it('9. UNION EXCEPT', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -122,11 +122,11 @@ insert into c (col) values (1), (2), (5);
     */
 		});
 		console.log(res);
-		assert.deepEqual(res.sort(), [3]);
+		assert.deepEqual(res.sort(), [1, 2, 3, 4]);
 		done();
 	});
 
-	it.skip('10. UNION EXCEPT', function (done) {
+	it('10. UNION EXCEPT', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -137,11 +137,11 @@ insert into c (col) values (1), (2), (5);
     */
 		});
 		console.log(res);
-		assert.deepEqual(res.sort(), [1, 2, 3, 5]);
+		assert.deepEqual(res.sort(), [3]);
 		done();
 	});
 
-	it.skip('11. UNION INTERSECT', function (done) {
+	it('11. UNION INTERSECT', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -156,7 +156,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('12. INTERSECT UNION', function (done) {
+	it('12. INTERSECT UNION', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -167,11 +167,11 @@ insert into c (col) values (1), (2), (5);
     */
 		});
 		console.log(res);
-		assert.deepEqual(res.sort(), [1, 2, 3]);
+		assert.deepEqual(res.sort(), [1, 2]);
 		done();
 	});
 
-	it.skip('13. UNION INTERSECT', function (done) {
+	it('13. UNION INTERSECT', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -186,7 +186,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('14. INTERSECT UNION', function (done) {
+	it('14. INTERSECT UNION', function (done) {
 		var res = alasql(function () {
 			/*
       select col from a
@@ -201,7 +201,7 @@ insert into c (col) values (1), (2), (5);
 		done();
 	});
 
-	it.skip('99. DROP DATABASE', function (done) {
+	it('99. DROP DATABASE', function (done) {
 		alasql.options.modifier = undefined;
 		alasql('DROP DATABASE test339');
 		done();