bug fixed for sql parser.

src/main/java/com/alibaba/druid/sql/dialect/mysql/ast/clause/MySqlCursorDeclareStatement.java

@@ -42,12 +42,14 @@ public class MySqlCursorDeclareStatement extends MySqlStatementImpl{
 	}
 
 	public void setSelect(SQLSelectStatement select) {
+		if (select != null) {
+			select.setParent(this);
+		}
 		this.select = select;
 	}
 
 	@Override
 	public void accept0(MySqlASTVisitor visitor) {
-		// TODO Auto-generated method stub
 		 if (visitor.visit(this)) {
 	         acceptChild(visitor, select);
 	        }

src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlStatementParser.java

@@ -3619,6 +3619,7 @@ public class MySqlStatementParser extends SQLStatementParser {
                 SQLIfStatement.ElseIf elseIf = new SQLIfStatement.ElseIf();
 
                 elseIf.setCondition(this.exprParser.expr());
+                elseIf.setParent(stmt);
 
                 accept(Token.THEN);
                 this.parseStatementList(elseIf.getStatements(), -1, elseIf);

src/main/java/com/alibaba/druid/sql/dialect/odps/parser/OdpsSelectParser.java

@@ -178,7 +178,9 @@ public class OdpsSelectParser extends SQLSelectParser {
 
     protected SQLTableSource parseLateralView(SQLTableSource tableSource) {
         accept(Token.VIEW);
-        tableSource.setAlias(null);
+        if ("LATERAL".equalsIgnoreCase(tableSource.getAlias())) {
+            tableSource.setAlias(null);
+        }
         OdpsLateralViewTableSource lateralViewTabSrc = new OdpsLateralViewTableSource();
         lateralViewTabSrc.setTableSource(tableSource);
         

src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleForStatement.java

@@ -58,6 +58,9 @@ public class OracleForStatement extends OracleStatementImpl {
     }
 
     public void setRange(SQLExpr range) {
+        if (range != null) {
+            range.setParent(this);
+        }
         this.range = range;
     }
 

src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleStatementParser.java

@@ -740,6 +740,13 @@ public class OracleStatementParser extends SQLStatementParser {
         return stmt;
     }
 
+    public SQLCreateFunctionStatement parseCreateFunction() {
+        accept(Token.CREATE);
+        SQLCreateFunctionStatement stmt = (SQLCreateFunctionStatement) parseFunction();
+        stmt.setCreate(true);
+        return stmt;
+    }
+
     public SQLStatement parseFunction() {
         SQLCreateFunctionStatement stmt = new SQLCreateFunctionStatement();
         stmt.setDbType(dbType);
@@ -893,6 +900,7 @@ public class OracleStatementParser extends SQLStatementParser {
             SQLIfStatement.ElseIf elseIf = new SQLIfStatement.ElseIf();
 
             elseIf.setCondition(this.exprParser.expr());
+            elseIf.setParent(stmt);
 
             accept(Token.THEN);
             this.parseStatementList(elseIf.getStatements(), -1, stmt);
@@ -903,6 +911,8 @@ public class OracleStatementParser extends SQLStatementParser {
         if (lexer.token() == Token.ELSE) {
             lexer.nextToken();
 
+
+
             SQLIfStatement.Else elseItem = new SQLIfStatement.Else();
             this.parseStatementList(elseItem.getStatements(), -1, elseItem);
             stmt.setElseItem(elseItem);

src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleOutputVisitor.java

@@ -1865,7 +1865,10 @@ public class OracleOutputVisitor extends SQLASTOutputVisitor implements OracleAS
         }
         x.getIndex().accept(this);
         print0(ucase ? " IN " : " in ");
-        x.getRange().accept(this);
+
+        SQLExpr range = x.getRange();
+        range.accept(this);
+
         if (!all) {
             println();
             print0(ucase ? "LOOP" : "loop");