mysql parser show statements

src/main/java/com/alibaba/druid/sql/dialect/mysql/ast/statement/MySqlShowEngineStatement.java

@@ -0,0 +1,39 @@
+package com.alibaba.druid.sql.dialect.mysql.ast.statement;
+
+import com.alibaba.druid.sql.ast.SQLExpr;
+import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlASTVisitor;
+
+public class MySqlShowEngineStatement extends MySqlStatementImpl {
+
+    private static final long serialVersionUID = 1L;
+
+    private SQLExpr           name;
+    private Option            option;
+
+    public void accept0(MySqlASTVisitor visitor) {
+        if (visitor.visit(this)) {
+            acceptChild(visitor, name);
+        }
+        visitor.endVisit(this);
+    }
+
+    public SQLExpr getName() {
+        return name;
+    }
+
+    public void setName(SQLExpr name) {
+        this.name = name;
+    }
+
+    public Option getOption() {
+        return option;
+    }
+
+    public void setOption(Option option) {
+        this.option = option;
+    }
+
+    public static enum Option {
+        STATUS, MUTEX
+    }
+}

src/main/java/com/alibaba/druid/sql/dialect/mysql/ast/statement/MySqlShowEnginesStatement.java

@@ -0,0 +1,23 @@
+package com.alibaba.druid.sql.dialect.mysql.ast.statement;
+
+import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlASTVisitor;
+
+public class MySqlShowEnginesStatement extends MySqlStatementImpl {
+
+    private static final long serialVersionUID = 1L;
+    private boolean           storage          = false;
+
+    public void accept0(MySqlASTVisitor visitor) {
+        visitor.visit(this);
+        visitor.endVisit(this);
+    }
+
+    public boolean isStorage() {
+        return storage;
+    }
+
+    public void setStorage(boolean storage) {
+        this.storage = storage;
+    }
+
+}

src/main/java/com/alibaba/druid/sql/dialect/mysql/ast/statement/MySqlShowErrorsStatement.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 1999-2011 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.dialect.mysql.ast.statement;
+
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock.Limit;
+import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlASTVisitor;
+
+public class MySqlShowErrorsStatement extends MySqlStatementImpl {
+
+    private static final long serialVersionUID = 1L;
+
+    private boolean           count            = false;
+    private Limit             limit;
+
+    public boolean isCount() {
+        return count;
+    }
+
+    public void setCount(boolean count) {
+        this.count = count;
+    }
+
+    public Limit getLimit() {
+        return limit;
+    }
+
+    public void setLimit(Limit limit) {
+        this.limit = limit;
+    }
+
+    public void accept0(MySqlASTVisitor visitor) {
+        if (visitor.visit(this)) {
+            acceptChild(visitor, limit);
+        }
+        visitor.endVisit(this);
+    }
+}

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

@@ -70,6 +70,9 @@ import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTableSta
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTriggerStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateViewStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowDatabasesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEngineStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEnginesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowErrorsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowMasterLogsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowStatusStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowTablesStatement;
@@ -466,10 +469,48 @@ public class MySqlStatementParser extends SQLStatementParser {
             accept(Token.LPAREN);
             accept(Token.STAR);
             accept(Token.RPAREN);
-            acceptIdentifier("WARNINGS");
 
-            MySqlShowWarningsStatement stmt = new MySqlShowWarningsStatement();
-            stmt.setCount(true);
+            if (identifierEquals("ERRORS")) {
+                lexer.nextToken();
+                
+                MySqlShowErrorsStatement stmt = new MySqlShowErrorsStatement();
+                stmt.setCount(true);
+
+                return stmt;
+            } else {
+                acceptIdentifier("WARNINGS");
+
+                MySqlShowWarningsStatement stmt = new MySqlShowWarningsStatement();
+                stmt.setCount(true);
+
+                return stmt;
+            }
+        }
+
+        if (identifierEquals("ERRORS")) {
+            lexer.nextToken();
+
+            MySqlShowErrorsStatement stmt = new MySqlShowErrorsStatement();
+            if (lexer.token() == Token.LIMIT) {
+                lexer.nextToken();
+
+                MySqlSelectQueryBlock.Limit limit = new MySqlSelectQueryBlock.Limit();
+
+                SQLExpr temp = this.exprParser.expr();
+                if (lexer.token() == (Token.COMMA)) {
+                    limit.setOffset(temp);
+                    lexer.nextToken();
+                    limit.setRowCount(exprParser.expr());
+                } else if (identifierEquals("OFFSET")) {
+                    limit.setRowCount(temp);
+                    lexer.nextToken();
+                    limit.setOffset(exprParser.expr());
+                } else {
+                    limit.setRowCount(temp);
+                }
+
+                stmt.setLimit(limit);
+            }
 
             return stmt;
         }
@@ -603,69 +644,92 @@ public class MySqlStatementParser extends SQLStatementParser {
             lexer.nextToken();
             return new MySqlShowContributorsStatement();
         }
-        
+
         if (lexer.token() == Token.CREATE) {
             lexer.nextToken();
-            
+
             if (identifierEquals("DATABASE")) {
                 lexer.nextToken();
-                
+
                 MySqlShowCreateDatabaseStatement stmt = new MySqlShowCreateDatabaseStatement();
                 stmt.setDatabase(this.exprParser.name());
                 return stmt;
             }
-            
+
             if (identifierEquals("EVENT")) {
                 lexer.nextToken();
-                
+
                 MySqlShowCreateEventStatement stmt = new MySqlShowCreateEventStatement();
                 stmt.setEventName(this.exprParser.name());
                 return stmt;
             }
-            
+
             if (identifierEquals("FUNCTION")) {
                 lexer.nextToken();
-                
+
                 MySqlShowCreateFunctionStatement stmt = new MySqlShowCreateFunctionStatement();
                 stmt.setName(this.exprParser.name());
                 return stmt;
             }
-            
+
             if (identifierEquals("PROCEDURE")) {
                 lexer.nextToken();
-                
+
                 MySqlShowCreateProcedureStatement stmt = new MySqlShowCreateProcedureStatement();
                 stmt.setName(this.exprParser.name());
                 return stmt;
             }
-            
+
             if (lexer.token() == Token.TABLE) {
                 lexer.nextToken();
-                
+
                 MySqlShowCreateTableStatement stmt = new MySqlShowCreateTableStatement();
                 stmt.setName(this.exprParser.name());
                 return stmt;
             }
-            
+
             if (lexer.token() == Token.VIEW) {
                 lexer.nextToken();
-                
+
                 MySqlShowCreateViewStatement stmt = new MySqlShowCreateViewStatement();
                 stmt.setName(this.exprParser.name());
                 return stmt;
             }
-            
+
             if (identifierEquals("TRIGGER")) {
                 lexer.nextToken();
-                
+
                 MySqlShowCreateTriggerStatement stmt = new MySqlShowCreateTriggerStatement();
                 stmt.setName(this.exprParser.name());
                 return stmt;
             }
-            
+
             throw new ParserException("TODO " + lexer.stringVal());
         }
 
+        if (identifierEquals("ENGINE")) {
+            lexer.nextToken();
+            MySqlShowEngineStatement stmt = new MySqlShowEngineStatement();
+            stmt.setName(this.exprParser.name());
+            stmt.setOption(MySqlShowEngineStatement.Option.valueOf(lexer.stringVal().toUpperCase()));
+            lexer.nextToken();
+            return stmt;
+        }
+
+        if (identifierEquals("STORAGE")) {
+            lexer.nextToken();
+            acceptIdentifier("ENGINES");
+            MySqlShowEnginesStatement stmt = new MySqlShowEnginesStatement();
+            stmt.setStorage(true);
+            return stmt;
+        }
+
+        if (identifierEquals("ENGINES")) {
+            lexer.nextToken();
+            MySqlShowEnginesStatement stmt = new MySqlShowEnginesStatement();
+            return stmt;
+        }
+
         throw new ParserException("TODO " + lexer.stringVal());
     }
 

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

@@ -61,6 +61,9 @@ import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTableSta
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTriggerStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateViewStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowDatabasesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEngineStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEnginesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowErrorsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowMasterLogsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowStatusStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowTablesStatement;
@@ -291,4 +294,16 @@ public interface MySqlASTVisitor extends SQLASTVisitor {
     boolean visit(MySqlShowCreateViewStatement x);
     
     void endVisit(MySqlShowCreateViewStatement x);
+    
+    boolean visit(MySqlShowEngineStatement x);
+    
+    void endVisit(MySqlShowEngineStatement x);
+    
+    boolean visit(MySqlShowEnginesStatement x);
+    
+    void endVisit(MySqlShowEnginesStatement x);
+    
+    boolean visit(MySqlShowErrorsStatement x);
+    
+    void endVisit(MySqlShowErrorsStatement x);
 }

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

@@ -48,6 +48,9 @@ import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTableSta
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTriggerStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateViewStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowDatabasesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEngineStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEnginesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowErrorsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowMasterLogsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowStatusStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowTablesStatement;
@@ -630,4 +633,34 @@ public class MySqlASTVisitorAdapter extends SQLASTVisitorAdapter implements
     public void endVisit(MySqlShowCreateViewStatement x) {
         
     }
+
+    @Override
+    public boolean visit(MySqlShowEngineStatement x) {
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlShowEngineStatement x) {
+        
+    }
+    
+    @Override
+    public boolean visit(MySqlShowEnginesStatement x) {
+        return true;
+    }
+    
+    @Override
+    public void endVisit(MySqlShowEnginesStatement x) {
+        
+    }
+
+    @Override
+    public boolean visit(MySqlShowErrorsStatement x) {
+        return false;
+    }
+
+    @Override
+    public void endVisit(MySqlShowErrorsStatement x) {
+        
+    }
 }

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

@@ -80,6 +80,9 @@ import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTableSta
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTriggerStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateViewStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowDatabasesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEngineStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEnginesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowErrorsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowMasterLogsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowStatusStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowTablesStatement;
@@ -1677,4 +1680,52 @@ public class MySqlOutputVisitor extends SQLASTOutputVisitor implements MySqlASTV
     public void endVisit(MySqlShowCreateViewStatement x) {
         
     }
+
+    @Override
+    public boolean visit(MySqlShowEngineStatement x) {
+        print("SHOW ENGINE ");
+        x.getName().accept(this);
+        print(' ');
+        print(x.getOption().name());
+        return false;
+    }
+
+    @Override
+    public void endVisit(MySqlShowEngineStatement x) {
+        
+    }
+
+    @Override
+    public boolean visit(MySqlShowEnginesStatement x) {
+        if (x.isStorage()) {
+            print("SHOW STORAGE ENGINES");
+        } else {
+            print("SHOW ENGINES");
+        }
+        return false;
+    }
+
+    @Override
+    public void endVisit(MySqlShowEnginesStatement x) {
+        
+    }
+
+    @Override
+    public boolean visit(MySqlShowErrorsStatement x) {
+        if (x.isCount()) {
+            print("SHOW COUNT(*) ERRORS");
+        } else {
+            print("SHOW ERRORS");
+            if (x.getLimit() != null) {
+                print(' ');
+                x.getLimit().accept(this);
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public void endVisit(MySqlShowErrorsStatement x) {
+        
+    }
 }

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

@@ -57,6 +57,9 @@ import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTableSta
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTriggerStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateViewStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowDatabasesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEngineStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEnginesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowErrorsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowMasterLogsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowStatusStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowTablesStatement;
@@ -692,4 +695,34 @@ public class MySqlSchemaStatVisitor extends SchemaStatVisitor implements MySqlAS
     public void endVisit(MySqlShowCreateViewStatement x) {
         
     }
+
+    @Override
+    public boolean visit(MySqlShowEngineStatement x) {
+        return false;
+    }
+
+    @Override
+    public void endVisit(MySqlShowEngineStatement x) {
+        
+    }
+    
+    @Override
+    public boolean visit(MySqlShowEnginesStatement x) {
+        return false;
+    }
+    
+    @Override
+    public void endVisit(MySqlShowEnginesStatement x) {
+        
+    }
+
+    @Override
+    public boolean visit(MySqlShowErrorsStatement x) {
+        return false;
+    }
+
+    @Override
+    public void endVisit(MySqlShowErrorsStatement x) {
+        
+    }
 }

src/test/java/com/alibaba/druid/bvt/sql/cobar/DALParserTest.java

@@ -26,6 +26,10 @@ import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateProcedur
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTableStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateTriggerStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowCreateViewStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowDatabasesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEngineStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowEnginesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowErrorsStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowMasterLogsStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.parser.Token;
@@ -407,113 +411,117 @@ public class DALParserTest extends TestCase {
         Assert.assertEquals("SHOW CREATE VIEW x", output);
     }
     
+    public void test_show_databases() throws Exception {
+        String sql = "SHOW DATABASES";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowDatabasesStatement show = (MySqlShowDatabasesStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW DATABASES", output);
+    }
+    
+    public void test_show_databases_1() throws Exception {
+        String sql = "SHOW DATABASES LIKE 'a%'";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowDatabasesStatement show = (MySqlShowDatabasesStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW DATABASES LIKE 'a%'", output);
+    }
+    
+    public void test_show_databases_2() throws Exception {
+        String sql = "SHOW DATABASES WHERE `Database` = 'mysql'";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);    
+        MySqlShowDatabasesStatement show = (MySqlShowDatabasesStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW DATABASES WHERE `Database` = 'mysql'", output);
+    }
+    
+    public void test_show_engine() throws Exception {
+        String sql = "SHOW ENGINE INNODB STATUS";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowEngineStatement show = (MySqlShowEngineStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW ENGINE INNODB STATUS", output);
+    }
+    
+    public void test_show_engine_1() throws Exception {
+        String sql = "SHOW ENGINE PERFORMANCE_SCHEMA STATUS";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowEngineStatement show = (MySqlShowEngineStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW ENGINE PERFORMANCE_SCHEMA STATUS", output);
+    }
+    
+    public void test_show_engine_2() throws Exception {
+        String sql = "SHOW ENGINE INNODB mutex";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowEngineStatement show = (MySqlShowEngineStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW ENGINE INNODB MUTEX", output);
+    }
+    
+    public void test_show_engines() throws Exception {
+        String sql = "SHOW ENGINES";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowEnginesStatement show = (MySqlShowEnginesStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW ENGINES", output);
+    }
+    
+    public void test_show_engines_1() throws Exception {
+        String sql = "SHOW STORAGE ENGINES";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowEnginesStatement show = (MySqlShowEnginesStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW STORAGE ENGINES", output);
+    }
+    
+    public void test_show_errors() throws Exception {
+        String sql = "SHOW COUNT(*) ERRORS";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowErrorsStatement show = (MySqlShowErrorsStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW COUNT(*) ERRORS", output);
+    }
+    
+    public void test_show_errors_1() throws Exception {
+        String sql = "SHOW ERRORS";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowErrorsStatement show = (MySqlShowErrorsStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW ERRORS", output);
+    }
+    
+    public void test_show_errors_2() throws Exception {
+        String sql = "SHOW ERRORS limit 1";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowErrorsStatement show = (MySqlShowErrorsStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW ERRORS LIMIT 1", output);
+    }
+    
+    public void test_show_errors_3() throws Exception {
+        String sql = "SHOW ERRORS limit 1, 2";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        MySqlShowErrorsStatement show = (MySqlShowErrorsStatement) parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(show);
+        Assert.assertEquals("SHOW ERRORS LIMIT 1, 2", output);
+    }
+    
 //
 //    public void testShow() throws Exception {
 //
-//        sql = "SHOW create trigger tri ";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW CREATE TRIGGER tri", output);
-//
-//        sql = "SHOW create view view";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW CREATE VIEW view", output);
-//
-//        sql = "SHOW databases like 'var'";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW DATABASES LIKE 'var'", output);
-//
-//        sql = "SHOW databases where (select * from `select`)is not null";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW DATABASES WHERE (SELECT * FROM `select`) IS NOT NULL", output);
-//
-//        sql = "SHOW databases ";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW DATABASES", output);
-//
-//        sql = "SHOW engine innodb status";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW ENGINE INNODB STATUS", output);
-//
-//        sql = "SHOW engine innodb mutex";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW ENGINE INNODB MUTEX", output);
-//
-//        sql = "SHOW engine performance_schema status";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW ENGINE PERFORMANCE SCHEMA STATUS", output);
-//
-//        sql = "SHOW engines";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW ENGINES", output);
-//
-//        sql = "SHOW storage engines";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW ENGINES", output);
-//
-//        sql = "SHOW errors";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW ERRORS", output);
-//
-//        sql = "SHOW errors limit 1 ";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW ERRORS LIMIT 0, 1", output);
-//
-//        sql = "SHOW count(*) errors";
-//        lexer = new SQLLexer(sql);
-//        parser = new DALParser(lexer, new SQLExprParser(lexer));
-//        show = (DALShowStatement) parser.show();
-//        parser.match(Token.EOF);
-//        output = output2MySQL(show, sql);
-//        Assert.assertEquals("SHOW COUNT(*) ERRORS", output);
-//
 //        sql = "SHOW events";
 //        lexer = new SQLLexer(sql);
 //        parser = new DALParser(lexer, new SQLExprParser(lexer));