diff --git a/src/main/java/com/alibaba/druid/filter/wall/WallFilter.java b/src/main/java/com/alibaba/druid/filter/wall/WallFilter.java
index ce54acf4c2..6423f9f4a7 100644
--- a/src/main/java/com/alibaba/druid/filter/wall/WallFilter.java
+++ b/src/main/java/com/alibaba/druid/filter/wall/WallFilter.java
@@ -18,7 +18,7 @@ import com.alibaba.druid.util.JdbcUtils;
 
 public class WallFilter extends FilterAdapter {
 
-    private boolean      inited = false;
+    private boolean      inited                        = false;
 
     private WallProvider provider;
 
@@ -26,6 +26,8 @@ public class WallFilter extends FilterAdapter {
 
     private boolean      loadExtend;
 
+    private boolean      checkSelectAlwayTrueCondition = true;
+
     @Override
     public void init(DataSourceProxy dataSource) {
         this.dataSource = dataSource;
@@ -35,10 +37,14 @@ public class WallFilter extends FilterAdapter {
         this.inited = true;
     }
 
+    public WallProvider getProvider() {
+        return provider;
+    }
+
     public boolean isLoadDefault() {
         return loadDefault;
     }
-    
+
     public void checkInit() {
         if (inited) {
             throw new DruidRuntimeException("wall filter is inited");
@@ -200,15 +206,18 @@ public class WallFilter extends FilterAdapter {
     }
 
     public WallProvider createWallProvider(String dbType) {
+        WallProvider provider;
         if (JdbcUtils.MYSQL.equals(dbType)) {
-            return new MySqlWallProvider(this.loadDefault, this.loadExtend);
+            provider = new MySqlWallProvider(this.loadDefault, this.loadExtend);
+        } else if (JdbcUtils.ORACLE.equals(dbType)) {
+            provider = new OracleWallProvider(this.loadDefault, this.loadExtend);
+        } else {
+            throw new IllegalStateException("dbType not support : " + dbType);
         }
 
-        if (JdbcUtils.ORACLE.equals(dbType)) {
-            return new OracleWallProvider(this.loadDefault, this.loadExtend);
-        }
+        provider.setCheckSelectAlwayTrueCondition(this.checkSelectAlwayTrueCondition);
 
-        throw new IllegalStateException("dbType not support : " + dbType);
+        return provider;
     }
 
 }
diff --git a/src/main/java/com/alibaba/druid/filter/wall/WallVisitor.java b/src/main/java/com/alibaba/druid/filter/wall/WallVisitor.java
index 6126578e04..7886346d26 100644
--- a/src/main/java/com/alibaba/druid/filter/wall/WallVisitor.java
+++ b/src/main/java/com/alibaba/druid/filter/wall/WallVisitor.java
@@ -7,7 +7,7 @@ import com.alibaba.druid.sql.visitor.SQLASTVisitor;
 
 public interface WallVisitor extends SQLASTVisitor {
 
-    WallProvider getWallProvider();
+    WallProvider getProvider();
 
     List<Violation> getViolations();
 
diff --git a/src/main/java/com/alibaba/druid/filter/wall/spi/MySqlWallVisitor.java b/src/main/java/com/alibaba/druid/filter/wall/spi/MySqlWallVisitor.java
index 779e356cc6..b499b33a17 100644
--- a/src/main/java/com/alibaba/druid/filter/wall/spi/MySqlWallVisitor.java
+++ b/src/main/java/com/alibaba/druid/filter/wall/spi/MySqlWallVisitor.java
@@ -41,7 +41,7 @@ public class MySqlWallVisitor extends MySqlASTVisitorAdapter implements WallVisi
         this.provider = provider;
     }
 
-    public WallProvider getWallProvider() {
+    public WallProvider getProvider() {
         return provider;
     }
 
diff --git a/src/main/java/com/alibaba/druid/filter/wall/spi/OracleWallVisitor.java b/src/main/java/com/alibaba/druid/filter/wall/spi/OracleWallVisitor.java
index fca3df446a..90c1b14f39 100644
--- a/src/main/java/com/alibaba/druid/filter/wall/spi/OracleWallVisitor.java
+++ b/src/main/java/com/alibaba/druid/filter/wall/spi/OracleWallVisitor.java
@@ -179,7 +179,7 @@ public class OracleWallVisitor extends OracleASTVIsitorAdapter implements WallVi
     }
 
     @Override
-    public WallProvider getWallProvider() {
+    public WallProvider getProvider() {
         return this.provider;
     }
 }
diff --git a/src/main/java/com/alibaba/druid/filter/wall/spi/WallVisitorUtils.java b/src/main/java/com/alibaba/druid/filter/wall/spi/WallVisitorUtils.java
index 37bbfc88da..efa6757731 100644
--- a/src/main/java/com/alibaba/druid/filter/wall/spi/WallVisitorUtils.java
+++ b/src/main/java/com/alibaba/druid/filter/wall/spi/WallVisitorUtils.java
@@ -59,7 +59,7 @@ public class WallVisitorUtils {
             return;
         }
         
-        WallProvider provider = visitor.getWallProvider();
+        WallProvider provider = visitor.getProvider();
         if (!provider.isCheckSelectAlwayTrueCondition()) {
             return;
         }
@@ -366,7 +366,7 @@ public class WallVisitorUtils {
 
         String methodName = x.getMethodName();
 
-        if (visitor.getWallProvider().getPermitFunctions().contains(methodName.toLowerCase())) {
+        if (visitor.getProvider().getPermitFunctions().contains(methodName.toLowerCase())) {
             visitor.getViolations().add(new IllegalSQLObjectViolation(visitor.toSQL(x)));
         }
 
@@ -384,7 +384,7 @@ public class WallVisitorUtils {
 
                 ownerName = form(ownerName);
 
-                if (visitor.getWallProvider().getPermitSchemas().contains(ownerName.toLowerCase())) {
+                if (visitor.getProvider().getPermitSchemas().contains(ownerName.toLowerCase())) {
                     visitor.getViolations().add(new IllegalSQLObjectViolation(visitor.toSQL(x)));
                 }
             }