diff --git a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/ast/stmt/PGInsertStatement.java b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/ast/stmt/PGInsertStatement.java
index eb0cd7f01d..4954f2e25b 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/ast/stmt/PGInsertStatement.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/ast/stmt/PGInsertStatement.java
@@ -29,6 +29,7 @@ public class PGInsertStatement extends SQLInsertStatement implements PGSQLStatem
     private PGWithClause       with;
     private List<ValuesClause> valuesList = new ArrayList<ValuesClause>();
     private SQLExpr            returning;
+    private boolean			   defaultValues = false;
 
     public SQLExpr getReturning() {
         return returning;
@@ -70,7 +71,15 @@ public class PGInsertStatement extends SQLInsertStatement implements PGSQLStatem
         valuesList.add(valueClause);
     }
 
-    protected void accept0(SQLASTVisitor visitor) {
+    public boolean isDefaultValues() {
+		return defaultValues;
+	}
+
+	public void setDefaultValues(boolean defaultValues) {
+		this.defaultValues = defaultValues;
+	}
+
+	protected void accept0(SQLASTVisitor visitor) {
         accept0((PGASTVisitor) visitor);
     }
 
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGLexer.java b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGLexer.java
index eef1593c78..78e42b9c39 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGLexer.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGLexer.java
@@ -94,6 +94,7 @@ public class PGLexer extends Lexer {
                     hasSpecial = true;
                 }
 
+                putChar('\\');
                 switch (ch) {
                     case '\0':
                         putChar('\0');
@@ -139,6 +140,7 @@ public class PGLexer extends Lexer {
                     arraycopy(mark + 1, buf, 0, bufPos);
                     hasSpecial = true;
                     putChar('\'');
+                    putChar('\'');
                     continue;
                 }
             }
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSQLStatementParser.java b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSQLStatementParser.java
index a57bc96805..5854fa78ca 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSQLStatementParser.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSQLStatementParser.java
@@ -21,6 +21,7 @@ import com.alibaba.druid.sql.ast.SQLExpr;
 import com.alibaba.druid.sql.ast.SQLName;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.ast.expr.SQLCurrentOfCursorExpr;
+import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
 import com.alibaba.druid.sql.ast.expr.SQLQueryExpr;
 import com.alibaba.druid.sql.ast.statement.SQLAlterTableAlterColumn;
 import com.alibaba.druid.sql.ast.statement.SQLColumnDefinition;
@@ -101,6 +102,12 @@ public class PGSQLStatementParser extends SQLStatementParser {
             }
 
         }
+        
+        if (lexer.token() == Token.DEFAULT) {
+        	lexer.nextToken();
+        	accept(Token.VALUES);
+        	stmt.setDefaultValues(true);
+        }
 
         if (lexer.token() == (Token.LPAREN)) {
             lexer.nextToken();
@@ -152,6 +159,14 @@ public class PGSQLStatementParser extends SQLStatementParser {
         SQLName tableName = exprParser.name();
 
         deleteStatement.setTableName(tableName);
+        
+        if (lexer.token() == Token.AS) {
+			accept(Token.AS);
+		}
+		if (lexer.token() == Token.IDENTIFIER) {
+			deleteStatement.setAlias(lexer.stringVal());
+			lexer.nextToken();
+		}
 
         if (lexer.token() == Token.USING) {
             lexer.nextToken();
@@ -225,7 +240,14 @@ public class PGSQLStatementParser extends SQLStatementParser {
 
     private PGWithQuery withQuery() {
         PGWithQuery withQuery = new PGWithQuery();
-        withQuery.setName(this.exprParser.expr());
+        
+        if (lexer.token() == Token.LITERAL_ALIAS) {
+			withQuery.setName(new SQLIdentifierExpr("\"" + lexer.stringVal()
+					+ "\""));
+		} else {
+			withQuery.setName(new SQLIdentifierExpr(lexer.stringVal()));
+		}
+		lexer.nextToken();
 
         if (lexer.token() == Token.LPAREN) {
             lexer.nextToken();
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSelectParser.java b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSelectParser.java
index ad7bb47bf8..4b24d808a8 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSelectParser.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSelectParser.java
@@ -259,11 +259,10 @@ public class PGSelectParser extends SQLSelectParser {
 
     protected SQLTableSource parseTableSourceRest(SQLTableSource tableSource) {
         if (lexer.token() == Token.AS && tableSource instanceof SQLExprTableSource) {
-            String alias = this.as();
-
             if (lexer.token() == Token.LPAREN) {
                 SQLExprTableSource exprTableSource = (SQLExprTableSource) tableSource;
 
+                String alias = this.as();
                 PGFunctionTableSource functionTableSource = new PGFunctionTableSource(exprTableSource.getExpr());
                 functionTableSource.setAlias(alias);
 
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGDeleteTest.java b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGDeleteTest.java
index 1b993236fd..d2f778aeb2 100644
--- a/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGDeleteTest.java
+++ b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGDeleteTest.java
@@ -21,6 +21,7 @@ import org.junit.Assert;
 
 import com.alibaba.druid.sql.PGTest;
 import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGDeleteStatement;
 import com.alibaba.druid.sql.dialect.postgresql.parser.PGSQLStatementParser;
 import com.alibaba.druid.sql.dialect.postgresql.visitor.PGSchemaStatVisitor;
 import com.alibaba.druid.stat.TableStat;
@@ -50,5 +51,17 @@ public class PGDeleteTest extends PGTest {
         //Assert.assertTrue(visitor.getFields().size() == 0);
     }
 
+    public void test_1() {
+		String sql = "delete from test01 as a where a.id = 2";
+		PGSQLStatementParser parser = new PGSQLStatementParser(sql);
+		List<SQLStatement> statementList = parser.parseStatementList();
+		SQLStatement statemen = statementList.get(0);
+		print(statementList);
+		assertTrue(statementList.size() == 1);
+		assertTrue(statemen instanceof PGDeleteStatement);
+		PGDeleteStatement delete = (PGDeleteStatement) statemen;
+		assertTrue(delete.getAlias().equalsIgnoreCase("a"));
+		assertTrue(delete.getTableName().getSimpleName().equals("test01"));
+	}
     
 }
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGInsertTest0.java b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGInsertTest0.java
index dd232ec670..67cc1bdfd1 100644
--- a/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGInsertTest0.java
+++ b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGInsertTest0.java
@@ -21,6 +21,7 @@ import org.junit.Assert;
 
 import com.alibaba.druid.sql.PGTest;
 import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGInsertStatement;
 import com.alibaba.druid.sql.dialect.postgresql.parser.PGSQLStatementParser;
 import com.alibaba.druid.sql.dialect.postgresql.visitor.PGSchemaStatVisitor;
 import com.alibaba.druid.stat.TableStat;
@@ -51,5 +52,15 @@ public class PGInsertTest0 extends PGTest {
 //        Assert.assertTrue(visitor.getFields().contains(new TableStat.Column("films", "producer_id")));
     }
 
-    
+    public void test_1() {
+		String sql = "insert into test01 DEFAULT VALUES";
+		PGSQLStatementParser parser = new PGSQLStatementParser(sql);
+		List<SQLStatement> statementList = parser.parseStatementList();
+		SQLStatement statemen = statementList.get(0);
+		print(statementList);
+		assertTrue(statemen instanceof PGInsertStatement);
+		PGInsertStatement insert = (PGInsertStatement) statemen;
+		assertTrue(insert.getTableName().getSimpleName()
+				.equalsIgnoreCase("test01"));
+	}
 }
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGSelectTest21.java b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGSelectTest21.java
index dae9eca573..2daf437402 100644
--- a/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGSelectTest21.java
+++ b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGSelectTest21.java
@@ -21,6 +21,7 @@ import org.junit.Assert;
 
 import com.alibaba.druid.sql.PGTest;
 import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGSelectStatement;
 import com.alibaba.druid.sql.dialect.postgresql.parser.PGSQLStatementParser;
 import com.alibaba.druid.sql.dialect.postgresql.visitor.PGSchemaStatVisitor;
 
@@ -48,4 +49,20 @@ public class PGSelectTest21 extends PGTest {
         Assert.assertEquals(1, visitor.getColumns().size());
         Assert.assertEquals(1, visitor.getTables().size());
     }
+    
+    public void test_1() throws Exception {
+    	String sql = "with a(a1,b1) as (select * from b) select * from a";
+
+        PGSQLStatementParser parser = new PGSQLStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statemen = statementList.get(0);
+        print(statementList);
+        
+        assertTrue(statemen instanceof PGSelectStatement);
+        assertTrue(((PGSelectStatement)statemen).getWith().getWithQuery().size()==1);
+        StringBuffer sb = new StringBuffer();
+        ((PGSelectStatement)statemen).getWith().getWithQuery().get(0).getName().output(sb);
+        assertTrue("a".equals(sb.toString()));
+        assertTrue(((PGSelectStatement)statemen).getWith().getWithQuery().get(0).getColumns().size()==2);
+    }
 }