improved sql parser performance.

src/main/java/com/alibaba/druid/sql/SQLUtils.java

@@ -37,13 +37,15 @@ import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisito
 import com.alibaba.druid.sql.parser.*;
 import com.alibaba.druid.sql.visitor.SQLASTOutputVisitor;
 import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
+import com.alibaba.druid.sql.visitor.VisitorFeature;
 import com.alibaba.druid.support.logging.Log;
 import com.alibaba.druid.support.logging.LogFactory;
 import com.alibaba.druid.util.*;
 
 public class SQLUtils {
     public static FormatOption DEFAULT_FORMAT_OPTION = new FormatOption(true, true);
-    public static FormatOption DEFAULT_LCASE_FORMAT_OPTION = new FormatOption(false, true);
+    public static FormatOption DEFAULT_LCASE_FORMAT_OPTION
+            = new FormatOption(false, true);
 
     private final static Log LOG = LogFactory.getLog(SQLUtils.class);
 
@@ -61,6 +63,7 @@ public class SQLUtils {
         visitor.setUppCase(option.isUppCase());
         visitor.setPrettyFormat(option.isPrettyFormat());
         visitor.setParameterized(option.isParameterized());
+        visitor.setFeatures(option.features);
 
         sqlObject.accept(visitor);
 
@@ -85,7 +88,11 @@ public class SQLUtils {
     }
 
     public static String toMySqlString(SQLObject sqlObject) {
-        return toMySqlString(sqlObject, null);
+        return toMySqlString(sqlObject, (FormatOption) null);
+    }
+
+    public static String toMySqlString(SQLObject sqlObject, VisitorFeature... features) {
+        return toMySqlString(sqlObject, new FormatOption(features));
     }
 
     public static String toMySqlString(SQLObject sqlObject, FormatOption option) {
@@ -269,10 +276,7 @@ public class SQLUtils {
         if (option == null) {
             option = DEFAULT_FORMAT_OPTION;
         }
-        visitor.setUppCase(option.isUppCase());
-        visitor.setPrettyFormat(option.prettyFormat);
-        visitor.setParameterized(option.parameterized);
-        visitor.setDesensitize(option.desensitize);
+        visitor.setFeatures(option.features);
 
         if (tableMapping != null) {
             visitor.setTableMapping(tableMapping);
@@ -621,16 +625,17 @@ public class SQLUtils {
     }
 
     public static class FormatOption {
-
-        private boolean ucase = true;
-        private boolean prettyFormat = true;
-        private boolean parameterized = false;
-        private boolean desensitize = false;
+        private int features = VisitorFeature.of(VisitorFeature.OutputUCase
+                , VisitorFeature.OutputPrettyFormat);
 
         public FormatOption() {
 
         }
 
+        public FormatOption(VisitorFeature... features) {
+            this.features = VisitorFeature.of(features);
+        }
+
         public FormatOption(boolean ucase) {
             this(ucase, true);
         }
@@ -640,41 +645,49 @@ public class SQLUtils {
         }
 
         public FormatOption(boolean ucase, boolean prettyFormat, boolean parameterized) {
-            this.ucase = ucase;
-            this.prettyFormat = prettyFormat;
-            this.parameterized = parameterized;
+            this.features = VisitorFeature.config(this.features, VisitorFeature.OutputUCase, ucase);
+            this.features = VisitorFeature.config(this.features, VisitorFeature.OutputPrettyFormat, prettyFormat);
+            this.features = VisitorFeature.config(this.features, VisitorFeature.OutputParameterized, parameterized);
         }
 
         public boolean isDesensitize() {
-            return desensitize;
+            return isEnabled(VisitorFeature.OutputDesensitize);
         }
 
-        public void setDesensitize(boolean desensitize) {
-            this.desensitize = desensitize;
+        public void setDesensitize(boolean val) {
+            config(VisitorFeature.OutputDesensitize, val);
         }
 
         public boolean isUppCase() {
-            return ucase;
+            return isEnabled(VisitorFeature.OutputUCase);
         }
 
         public void setUppCase(boolean val) {
-            this.ucase = val;
+            config(VisitorFeature.OutputUCase, val);
         }
 
         public boolean isPrettyFormat() {
-            return prettyFormat;
+            return isEnabled(VisitorFeature.OutputPrettyFormat);
         }
 
         public void setPrettyFormat(boolean prettyFormat) {
-            this.prettyFormat = prettyFormat;
+            config(VisitorFeature.OutputPrettyFormat, prettyFormat);
         }
 
         public boolean isParameterized() {
-            return parameterized;
+            return isEnabled(VisitorFeature.OutputParameterized);
         }
 
         public void setParameterized(boolean parameterized) {
-            this.parameterized = parameterized;
+            config(VisitorFeature.OutputParameterized, parameterized);
+        }
+
+        public void config(VisitorFeature feature, boolean state) {
+            features = VisitorFeature.config(features, feature, state);
+        }
+
+        public final boolean isEnabled(VisitorFeature feature) {
+            return VisitorFeature.isEnabled(this.features, feature);
         }
     }
 

src/main/java/com/alibaba/druid/sql/ast/statement/SQLInsertStatement.java

@@ -71,6 +71,8 @@ public class SQLInsertStatement extends SQLInsertInto implements SQLStatement {
 
         private final List<SQLExpr> values;
 
+        private transient String originalString;
+
         public ValuesClause(){
             this(new ArrayList<SQLExpr>());
         }
@@ -118,6 +120,14 @@ public class SQLInsertStatement extends SQLInsertInto implements SQLStatement {
 
             visitor.endVisit(this);
         }
+
+        public String getOriginalString() {
+            return originalString;
+        }
+
+        public void setOriginalString(String originalString) {
+            this.originalString = originalString;
+        }
     }
 
     @Override

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

@@ -44,11 +44,7 @@ import com.alibaba.druid.sql.dialect.mysql.ast.clause.MySqlRepeatStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.clause.MySqlSelectIntoStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.*;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlLockTableStatement.LockType;
-import com.alibaba.druid.sql.parser.Lexer;
-import com.alibaba.druid.sql.parser.ParserException;
-import com.alibaba.druid.sql.parser.SQLSelectParser;
-import com.alibaba.druid.sql.parser.SQLStatementParser;
-import com.alibaba.druid.sql.parser.Token;
+import com.alibaba.druid.sql.parser.*;
 import com.alibaba.druid.util.JdbcConstants;
 
 import java.util.ArrayList;
@@ -2229,6 +2225,8 @@ public class MySqlStatementParser extends SQLStatementParser {
 
     private void parseValueClause(List<ValuesClause> valueClauseList, int columnSize) {
         for (int i = 0; ; ++i) {
+            int startPos = lexer.pos() - 1;
+
             if (lexer.token() != Token.LPAREN) {
                 throw new ParserException("syntax error, expect ')', " + lexer.info());
             }
@@ -2281,6 +2279,13 @@ public class MySqlStatementParser extends SQLStatementParser {
                 }
 
                 SQLInsertStatement.ValuesClause values = new SQLInsertStatement.ValuesClause(valueExprList);
+
+                if (lexer.isEnabled(SQLParserFeature.KeepInsertValueClauseOriginalString)) {
+                    int endPos = lexer.pos();
+                    String orginalString = lexer.subString(startPos, endPos - startPos);
+                    values.setOriginalString(orginalString);
+                }
+
                 valueClauseList.add(values);
             } else {
                 SQLInsertStatement.ValuesClause values = new SQLInsertStatement.ValuesClause(new ArrayList<SQLExpr>(0));

src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlOutputVisitor.java

@@ -47,10 +47,7 @@ import com.alibaba.druid.sql.dialect.mysql.ast.expr.MySqlUserName;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.*;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlCreateTableStatement.TableSpaceOption;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlCreateUserStatement.UserSpecification;
-import com.alibaba.druid.sql.visitor.ExportParameterVisitor;
-import com.alibaba.druid.sql.visitor.ExportParameterVisitorUtils;
-import com.alibaba.druid.sql.visitor.ParameterizedOutputVisitorUtils;
-import com.alibaba.druid.sql.visitor.SQLASTOutputVisitor;
+import com.alibaba.druid.sql.visitor.*;
 import com.alibaba.druid.util.JdbcConstants;
 
 import java.io.IOException;
@@ -81,7 +78,7 @@ public class MySqlOutputVisitor extends SQLASTOutputVisitor implements MySqlASTV
     }
 
     public void configFromProperty(Properties properties) {
-        if (parameterized) {
+        if (isEnabled(VisitorFeature.OutputParameterized)) {
             String property = properties.getProperty("druid.parameterized.shardingSupport");
             if ("true".equals(property)) {
                 this.setShardingSupport(true);
@@ -92,7 +89,8 @@ public class MySqlOutputVisitor extends SQLASTOutputVisitor implements MySqlASTV
     }
 
     public boolean isShardingSupport() {
-        return parameterized && shardingSupport;
+        return isEnabled(VisitorFeature.OutputParameterized)
+                && shardingSupport;
     }
 
     public void setShardingSupport(boolean shardingSupport) {
@@ -573,7 +571,7 @@ public class MySqlOutputVisitor extends SQLASTOutputVisitor implements MySqlASTV
         }
 
         try {
-            if (this.parameterized
+            if (this.isEnabled(VisitorFeature.OutputParameterized)
                     && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
                 this.appender.append('?');
                 incrementReplaceCunt();
@@ -1001,7 +999,7 @@ public class MySqlOutputVisitor extends SQLASTOutputVisitor implements MySqlASTV
 
     protected void printValuesList(List<SQLInsertStatement.ValuesClause> valuesList) {
 
-        if (parameterized) {
+        if (isEnabled(VisitorFeature.OutputParameterized)) {
             print0(ucase ? "VALUES " : "values ");
             incrementIndent();
             valuesList.get(0).accept(this);
@@ -2774,7 +2772,8 @@ public class MySqlOutputVisitor extends SQLASTOutputVisitor implements MySqlASTV
 
     @Override
     public boolean visit(MySqlCharExpr x) {
-        if (parameterized && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
+        if (isEnabled(VisitorFeature.OutputParameterized)
+                && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
             print('?');
             incrementReplaceCunt();
             if (this instanceof ExportParameterVisitor || this.parameters != null) {

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

@@ -22,26 +22,23 @@ import com.alibaba.druid.sql.ast.expr.SQLIntegerExpr;
 import com.alibaba.druid.sql.ast.expr.SQLNCharExpr;
 import com.alibaba.druid.sql.ast.expr.SQLNullExpr;
 import com.alibaba.druid.sql.ast.expr.SQLNumberExpr;
-import com.alibaba.druid.sql.visitor.ExportParameterVisitor;
-import com.alibaba.druid.sql.visitor.ExportParameterVisitorUtils;
-import com.alibaba.druid.sql.visitor.ParameterizedOutputVisitorUtils;
-import com.alibaba.druid.sql.visitor.ParameterizedVisitor;
+import com.alibaba.druid.sql.visitor.*;
 
 public class OracleParameterizedOutputVisitor extends OracleOutputVisitor implements ParameterizedVisitor {
 
     public OracleParameterizedOutputVisitor(){
         this(new StringBuilder());
-        this.parameterized = true;
+        this.config(VisitorFeature.OutputParameterized, true);
     }
 
     public OracleParameterizedOutputVisitor(Appendable appender){
         super(appender);
-        this.parameterized = true;
+        this.config(VisitorFeature.OutputParameterized, true);
     }
 
     public OracleParameterizedOutputVisitor(Appendable appender, boolean printPostSemi){
         super(appender, printPostSemi);
-        this.parameterized = true;
+        this.config(VisitorFeature.OutputParameterized, true);
     }
 
     public boolean visit(SQLBinaryOpExpr x) {

src/main/java/com/alibaba/druid/sql/parser/Lexer.java

@@ -47,7 +47,7 @@ import com.alibaba.druid.util.StringUtils;
  * @author wenshao [szujobs@hotmail.com]
  */
 public class Lexer {
-
+    protected int          features;
     protected final String text;
     protected int          pos;
     protected int          mark;
@@ -1644,4 +1644,12 @@ public class Lexer {
     public int getPosColumn() {
         return posColumn;
     }
+
+    public void config(SQLParserFeature feature, boolean state) {
+        features = SQLParserFeature.config(features, feature, state);
+    }
+
+    public final boolean isEnabled(SQLParserFeature feature) {
+        return SQLParserFeature.isEnabled(this.features, feature);
+    }
 }

src/main/java/com/alibaba/druid/sql/parser/SQLParser.java

@@ -21,6 +21,8 @@ public class SQLParser {
 
     protected String      dbType;
 
+
+
     public SQLParser(String sql, String dbType){
         this(new Lexer(sql, null, dbType), dbType);
         this.lexer.nextToken();
@@ -316,4 +318,11 @@ public class SQLParser {
         }
     }
 
+    public void config(SQLParserFeature feature, boolean state) {
+        this.lexer.config(feature, state);
+    }
+
+    public final boolean isEnabled(SQLParserFeature feature) {
+        return lexer.isEnabled(feature);
+    }
 }

src/main/java/com/alibaba/druid/sql/parser/SQLParserFeature.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.sql.parser;
+
+public enum SQLParserFeature {
+    KeepInsertValueClauseOriginalString
+    ;
+
+    private SQLParserFeature(){
+        mask = (1 << ordinal());
+    }
+
+    public final int mask;
+
+
+    public static boolean isEnabled(int features, SQLParserFeature feature) {
+        return (features & feature.mask) != 0;
+    }
+
+    public static int config(int features, SQLParserFeature feature, boolean state) {
+        if (state) {
+            features |= feature.mask;
+        } else {
+            features &= ~feature.mask;
+        }
+
+        return features;
+    }
+
+    public static int of(SQLParserFeature[] features) {
+        if (features == null) {
+            return 0;
+        }
+
+        int value = 0;
+
+        for (SQLParserFeature feature: features) {
+            value |= feature.mask;
+        }
+
+        return value;
+    }
+}

src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java

@@ -39,6 +39,7 @@ import com.alibaba.druid.sql.dialect.oracle.ast.OracleSegmentAttributes;
 import com.alibaba.druid.sql.ast.statement.SQLDeclareStatement;
 import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleCreatePackageStatement;
 import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleForStatement;
+import com.alibaba.druid.sql.visitor.functions.Ucase;
 import com.alibaba.druid.util.JdbcConstants;
 import com.alibaba.druid.util.JdbcUtils;
 
@@ -54,7 +55,6 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     protected final Appendable appender;
     private String indent = "\t";
     protected int indentCount = 0;
-    private boolean prettyFormat = true;
     protected boolean ucase = true;
     protected int selectListNumberOfLine = 5;
 
@@ -72,17 +72,19 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
 
     protected int replaceCount;
 
-    protected boolean parameterized = false;
     protected boolean parameterizedMergeInList = false;
 
     protected boolean shardingSupport = false;
 
     protected transient int lines = 0;
 
-    protected boolean desensitize = false;
 
     protected Boolean printStatementAfterSemi = defaultPrintStatementAfterSemi;
 
+    {
+        features |= VisitorFeature.OutputPrettyFormat.mask;
+    }
+
     public SQLASTOutputVisitor(Appendable appender){
         this.appender = appender;
     }
@@ -94,7 +96,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
 
     public SQLASTOutputVisitor(Appendable appender, boolean parameterized){
         this.appender = appender;
-        this.parameterized = parameterized;
+        this.config(VisitorFeature.OutputParameterized, parameterized);
     }
 
     public int getReplaceCount() {
@@ -125,11 +127,11 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean isDesensitize() {
-        return desensitize;
+        return isEnabled(VisitorFeature.OutputDesensitize);
     }
 
     public void setDesensitize(boolean desensitize) {
-        this.desensitize = desensitize;
+        config(VisitorFeature.OutputDesensitize, desensitize);
     }
 
     public Set<String> getTables() {
@@ -158,11 +160,11 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean isPrettyFormat() {
-        return prettyFormat;
+        return isEnabled(VisitorFeature.OutputPrettyFormat);
     }
 
     public void setPrettyFormat(boolean prettyFormat) {
-        this.prettyFormat = prettyFormat;
+        config(VisitorFeature.OutputPrettyFormat, prettyFormat);
     }
 
     public void decrementIndent() {
@@ -174,11 +176,11 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean isParameterized() {
-        return parameterized;
+        return isEnabled(VisitorFeature.OutputParameterized);
     }
 
     public void setParameterized(boolean parameterized) {
-        this.parameterized = parameterized;
+        config(VisitorFeature.OutputParameterized, parameterized);
     }
 
     public boolean isParameterizedMergeInList() {
@@ -315,7 +317,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     protected void printSelectList(List<SQLSelectItem> selectList) {
-        incrementIndent();
+        this.indentCount++;
         for (int i = 0, lineItemCount = 0, size = selectList.size()
              ; i < size; ++i, ++lineItemCount) {
             SQLSelectItem selectItem = selectList.get(i);
@@ -361,7 +363,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
                 printlnComment(selectItem.getAfterCommentsDirect());
             }
         }
-        decrementIndent();
+        this.indentCount--;
     }
 
     protected void printlnAndAccept(List<? extends SQLObject> nodes, String seperator) {
@@ -420,7 +422,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean visit(SQLBinaryOpExpr x) {
-        if (this.parameterized) {
+        if (this.isEnabled(VisitorFeature.OutputParameterized)) {
             x = ParameterizedOutputVisitorUtils.merge(this, x);
         }
 
@@ -701,7 +703,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean visit(SQLCharExpr x) {
-        if (this.parameterized
+        if (this.isEnabled(VisitorFeature.OutputParameterized)
             && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
             print('?');
             incrementReplaceCunt();
@@ -789,7 +791,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
 
     public boolean visit(SQLIdentifierExpr x) {
         final String name = x.getName();
-        if (!parameterized) {
+        if (!this.isEnabled(VisitorFeature.OutputParameterized)) {
             print0(x.getName());
             return false;
         }
@@ -798,7 +800,8 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     private boolean printName(SQLName x, String name) {
-        boolean shardingSupport = this.shardingSupport && parameterized;
+        boolean shardingSupport = this.shardingSupport
+                && this.isEnabled(VisitorFeature.OutputParameterized);
         return printName(x, name, shardingSupport);
     }
 
@@ -885,7 +888,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean visit(SQLInListExpr x) {
-        if (this.parameterized) {
+        if (this.isEnabled(VisitorFeature.OutputParameterized)) {
             List<SQLExpr> targetList = x.getTargetList();
 
             boolean allLiteral = true;
@@ -995,7 +998,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
                 }
             }
         }
-        if (this.parameterized
+        if (this.isEnabled(VisitorFeature.OutputParameterized)
             && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
             if (!ParameterizedOutputVisitorUtils.checkParameterize(x)) {
                 print(val);
@@ -1032,7 +1035,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
             }
             SQLExpr param = x.getParameters().get(i);
 
-            if (parameterized) {
+            if (isEnabled(VisitorFeature.OutputParameterized)) {
                 if (size == 2 && i == 1 && param instanceof SQLCharExpr) {
                     if (JdbcUtils.ORACLE.equals(dbType)) {
                         if ("TO_CHAR".equalsIgnoreCase(function)
@@ -1126,7 +1129,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean visit(SQLNCharExpr x) {
-        if (this.parameterized
+        if (this.isEnabled(VisitorFeature.OutputParameterized)
             && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
             print('?');
             incrementReplaceCunt();
@@ -1170,7 +1173,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean visit(SQLNullExpr x) {
-        if (this.parameterized
+        if (this.isEnabled(VisitorFeature.OutputParameterized)
             && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
             SQLObject parent = x.getParent();
             if (parent instanceof ValuesClause) {
@@ -1189,7 +1192,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     }
 
     public boolean visit(SQLNumberExpr x) {
-        if (this.parameterized
+        if (this.isEnabled(VisitorFeature.OutputParameterized)
             && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
             print('?');
             incrementReplaceCunt();
@@ -1578,7 +1581,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
             addTable(expr.toString());
         }
 
-        if (desensitize) {
+        if (isEnabled(VisitorFeature.OutputDesensitize)) {
             SQLExpr owner = null;
             String ident = null;
             if (expr instanceof SQLIdentifierExpr) {
@@ -2208,7 +2211,8 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
 
     @Override
     public boolean visit(SQLHexExpr x) {
-        if (this.parameterized && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
+        if (this.isEnabled(VisitorFeature.OutputParameterized)
+                && ParameterizedOutputVisitorUtils.checkParameterize(x)) {
             print('?');
             incrementReplaceCunt();
 
@@ -2348,6 +2352,13 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
 
     @Override
     public boolean visit(ValuesClause x) {
+        if ((!isEnabled(VisitorFeature.OutputParameterized))
+                && isEnabled(VisitorFeature.OutputUseInsertValueClauseOriginalString)
+                && x.getOriginalString() != null) {
+            print0(x.getOriginalString());
+            return false;
+        }
+
         print('(');
         this.indentCount++;
 
@@ -4839,4 +4850,16 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     public void setPrintStatementAfterSemi(Boolean printStatementAfterSemi) {
         this.printStatementAfterSemi = printStatementAfterSemi;
     }
+
+    public void config(VisitorFeature feature, boolean state) {
+        super.config(feature, state);
+        if (feature == VisitorFeature.OutputUCase) {
+            this.ucase = state;
+        }
+    }
+
+    public void setFeatures(int features) {
+        super.setFeatures(features);
+        this.ucase = isEnabled(VisitorFeature.OutputUCase);
+    }
 }

src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitorAdapter.java

@@ -24,8 +24,10 @@ import com.alibaba.druid.sql.ast.statement.SQLMergeStatement.MergeUpdateClause;
 import com.alibaba.druid.sql.ast.statement.SQLWhileStatement;
 import com.alibaba.druid.sql.ast.statement.SQLDeclareStatement;
 import com.alibaba.druid.sql.ast.statement.SQLCommitStatement;
+import com.alibaba.druid.sql.parser.SQLParserFeature;
 
 public class SQLASTVisitorAdapter implements SQLASTVisitor {
+    protected int features;
 
     public void endVisit(SQLAllColumnExpr x) {
     }
@@ -1672,4 +1674,20 @@ public class SQLASTVisitorAdapter implements SQLASTVisitor {
     public void endVisit(SQLCreateMaterializedViewStatement x) {
 
     }
+
+    public void config(VisitorFeature feature, boolean state) {
+        features = VisitorFeature.config(features, feature, state);
+    }
+
+    public final boolean isEnabled(VisitorFeature feature) {
+        return VisitorFeature.isEnabled(this.features, feature);
+    }
+
+    public int getFeatures() {
+        return features;
+    }
+
+    public void setFeatures(int features) {
+        this.features = features;
+    }
 }

src/main/java/com/alibaba/druid/sql/visitor/VisitorFeature.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.sql.visitor;
+
+public enum  VisitorFeature {
+    OutputUCase,
+    OutputPrettyFormat,
+    OutputParameterized,
+    OutputDesensitize,
+    OutputUseInsertValueClauseOriginalString
+
+    ;
+
+    private VisitorFeature(){
+        mask = (1 << ordinal());
+    }
+
+    public final int mask;
+
+
+    public static boolean isEnabled(int features, VisitorFeature feature) {
+        return (features & feature.mask) != 0;
+    }
+
+    public static int config(int features, VisitorFeature feature, boolean state) {
+        if (state) {
+            features |= feature.mask;
+        } else {
+            features &= ~feature.mask;
+        }
+
+        return features;
+    }
+
+    public static int of(VisitorFeature... features) {
+        if (features == null) {
+            return 0;
+        }
+
+        int value = 0;
+
+        for (VisitorFeature feature: features) {
+            value |= feature.mask;
+        }
+
+        return value;
+    }
+}