Add a test-case for Hive's LEFT SEMI JOIN

Author: nhanitvn

src/test/java/net/sf/jsqlparser/test/select/HiveTest.java

@@ -0,0 +1,42 @@
+package net.sf.jsqlparser.test.select;
+
+import junit.framework.*;
+import net.sf.jsqlparser.parser.CCJSqlParserUtil;
+import net.sf.jsqlparser.schema.Table;
+import net.sf.jsqlparser.statement.Statement;
+import net.sf.jsqlparser.statement.select.PlainSelect;
+import net.sf.jsqlparser.statement.select.Select;
+
+import static net.sf.jsqlparser.test.TestUtils.*;
+
+/**
+ * Created by nhanitvn on 5/19/16.
+ */
+public class HiveTest extends TestCase {
+
+    public void testLeftSemiJoin() throws Exception {
+        String sql;
+        Statement statement;
+
+        sql = "SELECT\n"
+                + "    Something\n"
+                + "FROM\n"
+                + "    Sometable\n"
+                + "LEFT SEMI JOIN\n"
+                + "    Othertable\n";
+
+        statement = CCJSqlParserUtil.parse(sql);
+
+        System.out.println(statement.toString());
+
+        Select select = (Select) statement;
+        PlainSelect plainSelect = (PlainSelect) select.getSelectBody();
+        assertEquals(1, plainSelect.getJoins().size());
+        assertEquals("Othertable", ((Table) plainSelect.getJoins().get(0).getRightItem()).getFullyQualifiedName());
+        assertTrue(plainSelect.getJoins().get(0).isLeft());
+        assertTrue(plainSelect.getJoins().get(0).isSemi());
+        assertStatementCanBeDeparsedAs(select, sql, true);
+
+        assertSqlCanBeParsedAndDeparsed(sql, true);
+    }
+}