change

tests/examples/JDBC/calciteDemo/pom.xml

-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.taosdata.example.calcite</groupId>
-    <artifactId>calciteDemo</artifactId>
-    <version>1.0-SNAPSHOT</version>
-
-    <dependencies>
-        <!-- slf4j -->
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-simple</artifactId>
-            <version>1.7.25</version>
-            <scope>compile</scope>
-        </dependency>
-        <!-- calcite -->
-        <dependency>
-            <groupId>org.apache.calcite</groupId>
-            <artifactId>calcite-core</artifactId>
-            <version>1.23.0</version>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-dbcp2</artifactId>
-            <version>2.7.0</version>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.calcite.avatica</groupId>
-            <artifactId>avatica-core</artifactId>
-            <version>1.17.0</version>
-        </dependency>
-
-        <!-- mysql -->
-        <dependency>
-            <groupId>mysql</groupId>
-            <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.47</version>
-        </dependency>
-
-        <!-- tdengine -->
-        <dependency>
-            <groupId>com.taosdata.jdbc</groupId>
-            <artifactId>taos-jdbcdriver</artifactId>
-            <version>2.0.8</version>
-        </dependency>
-
-    </dependencies>
-
-
-</project>
\ No newline at end of file

tests/examples/JDBC/calciteDemo/src/main/java/com/taosdata/example/calcite/CalciteDemo.java

-package com.taosdata.example.calcite;
-
-import org.apache.calcite.adapter.jdbc.JdbcSchema;
-import org.apache.calcite.jdbc.CalciteConnection;
-import org.apache.calcite.schema.Schema;
-import org.apache.calcite.schema.SchemaPlus;
-import org.apache.calcite.sql.parser.SqlParseException;
-import org.apache.commons.dbcp2.BasicDataSource;
-
-import java.sql.*;
-import java.util.Properties;
-
-public class CalciteDemo {
-
-    private static String url_taos = "jdbc:TAOS://192.168.236.135:6030/test";
-    private static String url_mysql = "jdbc:mysql://master:3306/test?useSSL=false&useUnicode=true&characterEncoding=UTF-8";
-
-    public static void main(String[] args) throws SqlParseException, ClassNotFoundException, SQLException {
-        Class.forName("org.apache.calcite.jdbc.Driver");
-        Properties info = new Properties();
-        info.setProperty("caseSensitive", "false");
-
-        Connection connection = DriverManager.getConnection("jdbc:calcite:", info);
-        CalciteConnection calciteConnection = connection.unwrap(CalciteConnection.class);
-
-        SchemaPlus rootSchema = calciteConnection.getRootSchema();
-
-        //这里hdb是在tdengine中创建的数据库名
-        Schema schema = mysqlTest(rootSchema);
-//        Schema schema = tdengineTest(rootSchema);
-
-        //创建新的schema自动映射到原来的hdb数据库
-        rootSchema.add("test", schema);
-
-        Statement stmt = calciteConnection.createStatement();
-        //查询schema test中的表，表名是tdengine中的表
-        ResultSet rs = stmt.executeQuery("select * from test.t");
-        ResultSetMetaData metaData = rs.getMetaData();
-        while (rs.next()) {
-            for (int i = 1; i <= metaData.getColumnCount(); i++) {
-                System.out.println(metaData.getColumnLabel(i) + " : " + rs.getString(i));
-            }
-        }
-    }
-
-
-    private static Schema tdengineTest(SchemaPlus rootSchema) throws ClassNotFoundException {
-        Class.forName("com.taosdata.jdbc.TSDBDriver");
-        BasicDataSource dataSource = new BasicDataSource();
-        dataSource.setUrl(url_taos);
-        dataSource.setUsername("root");
-        dataSource.setPassword("taosdata");
-
-        return JdbcSchema.create(rootSchema, "test", dataSource, "hdb", null);
-    }
-
-    private static Schema mysqlTest(SchemaPlus rootSchema) throws ClassNotFoundException {
-        Class.forName("com.mysql.jdbc.Driver");
-        BasicDataSource dataSource = new BasicDataSource();
-        dataSource.setUrl(url_mysql);
-        dataSource.setUsername("root");
-        dataSource.setPassword("123456");
-
-        //Schema schema = JdbcSchema.create(rootSchema, "test", dataSource, "hdb", null);
-        return JdbcSchema.create(rootSchema, "test", dataSource, "test", null);
-    }
-}

tests/examples/JDBC/calciteDemo/src/main/resources/log4j.properties

-log4j.rootLogger=info,stdout
-
-#console
-log4j.appender.stdout=org.apache.log4j.ConsoleAppender 
-log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 
-log4j.appender.stdout.layout.ConversionPattern= [%d{yyyy-MM-dd HH:mm:ss a}]:%p %l%m%n
\ No newline at end of file