diff --git a/src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlSelectParser.java b/src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlSelectParser.java index 321d07d27a..7ff2309813 100644 --- a/src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlSelectParser.java +++ b/src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlSelectParser.java @@ -261,7 +261,7 @@ public class MySqlSelectParser extends SQLSelectParser { return tableSource; } - if (identifierEquals("USE")) { + if (lexer.token() == Token.USE) { lexer.nextToken(); MySqlUseIndexHint hint = new MySqlUseIndexHint(); parseIndexHint(hint); diff --git a/src/main/java/com/alibaba/druid/sql/parser/Keywords.java b/src/main/java/com/alibaba/druid/sql/parser/Keywords.java index 6789d8d8ab..fda68bb56c 100644 --- a/src/main/java/com/alibaba/druid/sql/parser/Keywords.java +++ b/src/main/java/com/alibaba/druid/sql/parser/Keywords.java @@ -113,6 +113,7 @@ public class Keywords { map.put("OVER", Token.OVER); map.put("TO", Token.TO); + map.put("USE", Token.USE); DEFAULT_KEYWORDS = new Keywords(map); } diff --git a/src/main/java/com/alibaba/druid/sql/visitor/SchemaStatVisitor.java b/src/main/java/com/alibaba/druid/sql/visitor/SchemaStatVisitor.java index 57a849da0c..27b1c75426 100644 --- a/src/main/java/com/alibaba/druid/sql/visitor/SchemaStatVisitor.java +++ b/src/main/java/com/alibaba/druid/sql/visitor/SchemaStatVisitor.java @@ -62,6 +62,7 @@ import com.alibaba.druid.sql.ast.statement.SQLSubqueryTableSource; import com.alibaba.druid.sql.ast.statement.SQLTableElement; import com.alibaba.druid.sql.ast.statement.SQLTruncateStatement; import com.alibaba.druid.sql.ast.statement.SQLUpdateStatement; +import com.alibaba.druid.sql.ast.statement.SQLUseStatement; import com.alibaba.druid.stat.TableStat; import com.alibaba.druid.stat.TableStat.Column; import com.alibaba.druid.stat.TableStat.Condition; @@ -1040,4 +1041,9 @@ public class SchemaStatVisitor extends SQLASTVisitorAdapter { public boolean visit(SQLAlterTableDropForeinKey x) { return false; } + + @Override + public boolean visit(SQLUseStatement x) { + return false; + } } diff --git a/src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlUseTest_0.java b/src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlUseTest_0.java new file mode 100644 index 0000000000..bce74157bd --- /dev/null +++ b/src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlUseTest_0.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.bvt.sql.mysql; + +import java.util.List; + +import org.junit.Assert; + +import com.alibaba.druid.sql.MysqlTest; +import com.alibaba.druid.sql.ast.SQLStatement; +import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser; +import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor; + +public class MySqlUseTest_0 extends MysqlTest { + + public void test_0() throws Exception { + String sql = "use db;"; + + MySqlStatementParser parser = new MySqlStatementParser(sql); + List statementList = parser.parseStatementList(); + SQLStatement stmt = statementList.get(0); + + print(statementList); + + Assert.assertEquals(1, statementList.size()); + + MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor(); + stmt.accept(visitor); + + Assert.assertEquals(0, visitor.getTables().size()); + Assert.assertEquals(0, visitor.getColumns().size()); + Assert.assertEquals(0, visitor.getConditions().size()); + Assert.assertEquals(0, visitor.getOrderByColumns().size()); + + // Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("mytable"))); + } +}