fixes #402

Author: wumpz

src/main/java/net/sf/jsqlparser/statement/create/table/CreateTable.java

@@ -41,6 +41,7 @@ public class CreateTable implements Statement {
     private List<ColumnDefinition> columnDefinitions;
     private List<Index> indexes;
     private Select select;
+    private boolean selectParenthesis;
     private boolean ifNotExists = false;
 
     @Override
@@ -117,8 +118,9 @@ public Select getSelect() {
         return select;
     }
 
-    public void setSelect(Select select) {
+    public void setSelect(Select select, boolean parenthesis) {
         this.select = select;
+        this.selectParenthesis = parenthesis;
     }
 
     public boolean isIfNotExists() {
@@ -129,6 +131,14 @@ public void setIfNotExists(boolean ifNotExists) {
         this.ifNotExists = ifNotExists;
     }
 
+    public boolean isSelectParenthesis() {
+        return selectParenthesis;
+    }
+
+    public void setSelectParenthesis(boolean selectParenthesis) {
+        this.selectParenthesis = selectParenthesis;
+    }
+
     @Override
     public String toString() {
         String sql;
@@ -139,7 +149,7 @@ public String toString() {
                 "TABLE " + (ifNotExists?"IF NOT EXISTS ":"") + table;
 
         if (select != null) {
-            sql += " AS " + select.toString();
+            sql += " AS " + (selectParenthesis?"(":"") + select.toString() + (selectParenthesis?")":"");
         } else {
             sql += " (";
 

src/main/java/net/sf/jsqlparser/util/deparser/CreateTableDeParser.java

@@ -29,8 +29,8 @@
 import net.sf.jsqlparser.statement.select.PlainSelect;
 
 /**
- * A class to de-parse (that is, tranform from JSqlParser hierarchy into a
- * string) a {@link net.sf.jsqlparser.statement.create.table.CreateTable}
+ * A class to de-parse (that is, tranform from JSqlParser hierarchy into a string) a
+ * {@link net.sf.jsqlparser.statement.create.table.CreateTable}
  */
 public class CreateTableDeParser {
 
@@ -48,7 +48,8 @@ public void deParse(CreateTable createTable) {
         if (createTable.isUnlogged()) {
             buffer.append("UNLOGGED ");
         }
-        String params = PlainSelect.getStringList(createTable.getCreateOptionsStrings(), false, false);
+        String params = PlainSelect.
+                getStringList(createTable.getCreateOptionsStrings(), false, false);
         if (!"".equals(params)) {
             buffer.append(params).append(' ');
         }
@@ -59,11 +60,19 @@ public void deParse(CreateTable createTable) {
         }
         buffer.append(createTable.getTable().getFullyQualifiedName());
         if (createTable.getSelect() != null) {
-            buffer.append(" AS ").append(createTable.getSelect().toString());
+            buffer.append(" AS ");
+            if (createTable.isSelectParenthesis()) {
+                buffer.append("(");
+            }
+            buffer.append(createTable.getSelect().toString());
+            if (createTable.isSelectParenthesis()) {
+                buffer.append(")");
+            }
         } else {
             if (createTable.getColumnDefinitions() != null) {
                 buffer.append(" (");
-                for (Iterator<ColumnDefinition> iter = createTable.getColumnDefinitions().iterator(); iter.hasNext();) {
+                for (Iterator<ColumnDefinition> iter = createTable.getColumnDefinitions().iterator(); iter.
+                        hasNext();) {
                     ColumnDefinition columnDefinition = iter.next();
                     buffer.append(columnDefinition.getColumnName());
                     buffer.append(" ");

src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt

@@ -2834,7 +2834,8 @@ CreateTable CreateTable():
         )
         |
         (
-        <K_AS> select = Select() { createTable.setSelect(select); }
+        <K_AS> ( LOOKAHEAD("(" Select() ")") "(" select = Select() { createTable.setSelect(select, true); } ")"
+                 | select = Select() { createTable.setSelect(select, false); } )
         )
 	]
 

src/test/java/net/sf/jsqlparser/test/create/CreateTableTest.java

@@ -243,6 +243,14 @@ public void testExcludeWhereConstraint() throws JSQLParserException {
     public void testTimestampWithoutTimezone() throws JSQLParserException {
         assertSqlCanBeParsedAndDeparsed("CREATE TABLE abc.tabc (transaction_date TIMESTAMP WITHOUT TIME ZONE)");
     }
+    
+    public void testCreateUnitonIssue402() throws JSQLParserException {
+        assertSqlCanBeParsedAndDeparsed("CREATE TABLE temp.abc AS SELECT sku FROM temp.a UNION SELECT sku FROM temp.b");
+    }
+    
+    public void testCreateUnitonIssue402_2() throws JSQLParserException {
+        assertSqlCanBeParsedAndDeparsed("CREATE TABLE temp.abc AS (SELECT sku FROM temp.a UNION SELECT sku FROM temp.b)");
+    }
 
 	public void testRUBiSCreateList() throws Exception {
 		BufferedReader in = new BufferedReader(new InputStreamReader(CreateTableTest.class.getResourceAsStream("/RUBiS-create-requests.txt")));