feat: add support for DuckDB CREATE TABLE with STRUCT(..) columns

Signed-off-by: Andreas Reichel <[email protected]>

Author: manticore-projects

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

@@ -8144,6 +8144,19 @@ ColDataType ColDataType():
 }
 {
     (
+        (
+            <K_STRUCT>
+            "("
+            ( tk=<S_IDENTIFIER> | tk=<S_QUOTED_IDENTIFIER> )
+            colDataType = ColDataType() { argumentsStringList.add( tk.image + " " + colDataType.toString()); }
+            [
+                ","
+                ( tk=<S_IDENTIFIER> | tk=<S_QUOTED_IDENTIFIER> )
+                colDataType = ColDataType() { argumentsStringList.add( tk.image + " " + colDataType.toString()); }
+            ]
+            ")" { colDataType = new ColDataType("STRUCT"); }
+        )
+		|
 		LOOKAHEAD(2) (
             colDataType = DataType()
         )

src/test/java/net/sf/jsqlparser/statement/select/DuckDBTest.java

@@ -25,4 +25,15 @@ void testFileTable() throws JSQLParserException {
 
         Assertions.assertEquals("'/tmp/test.parquet'", table.getName());
     }
+
+    @Test
+    void testCreateWithStruct() throws JSQLParserException {
+        String sqlStr =
+                "CREATE TABLE starbake.array_test (\n" +
+                        "  keys VARCHAR[] NOT NULL,\n" +
+                        "  values1 struct( field1 varchar(255), field2 double) NOT NULL,\n" +
+                        "  values2 struct( field1 varchar(255), field2 double) NOT NULL\n" +
+                        ");";
+        TestUtils.assertSqlCanBeParsedAndDeparsed(sqlStr, true);
+    }
 }