override def sqlContext: SQLContext = sparkSession.sqlContext private final val logger = LoggerFactory.getLogger(classOf[TSFileRelation]) //通过自己构造的参数构造表结构 override def schema: StructType = { Converter.toSparkSchema(options) } //根据SparkSQL传来的列名和过滤条件构造自己的RDD override d...
RelOptCluster cluster = RelOptCluster.create(planner, rexBuilder); SqlToRelConverter converter = new SqlToRelConverter(...); RelRoot root = converter.convertQuery(node, false, true); SqlToRelConverter将SQL Tree转化为Calcite中的RelNode。虽然两种Node都是类似于Tree的形式,但是表示的含义不同。SqlNod...
五、Calcite SQL 方言转换 Calcite 中 SQL 方言转换最重要的两个类是RelToSqlConverter 和 SqlDialect...
SQLines SQL Converter tool allows you to convert database schema (DDL), queries and DML statements, views, stored procedures, packages, functions and triggers between databases. SQLines converts SQL statements located in one or more files, not from a da
SQLines SQL Converter tool allows you to convert database schema (DDL), queries and DML statements, views, stored procedures, packages, functions and triggers between databases. SQLines converts SQL statements located in one or more files, not from a da
Get started on Apache Spark with these free stuff SQL to PySpark Convertor Do you want to convert SQL into PySpark Dataframe code ? I created this utility as my weekend project. I was able to convert basic sql queries into pyspark code. ...
SqlToRelConverter converter = new SqlToRelConverter(...); RelRoot root = converter.convertQuery(node, false, true); SqlToRelConverter将SQL Tree转化为Calcite中的RelNode。虽然两种Node都是类似于Tree的形式,但是表示的含义不同。SqlNode有很多种,既包括MIN、MAX这种表达式型的,也包括SELECT、JOIN这种关系型...
# 启动SQLConverterforApache Doris 转换服务 sh apiserver/bin/start.sh # 如需前端界面,可在 webserver 中配置相应的端口并启动,不需要前端则可以忽略以下操作 vim webserver/conf/config.conf # 启动前端界面 sh webserver/bin/start.sh 启动Doris 集群(2.1 或更高版本)并在服务启动后,在Doris中设置SQL转换服...
bigdata sql-parser monaco-editor hiveql sql-language flinksql sparksq Updated Jan 9, 2025 TypeScript duartealexf / sql-ddl-to-json-schema Star 210 Code Issues Pull requests SQL DDL to JSON Schema Converter json-schema grammar sql-parser nearley Updated Jan 13, 2025 TypeScript xnu...
{returnnull;}},validator,catalogReader,relOptCluster,// 均使用标准定义即可StandardConvertletTable.INSTANCE,SqlToRelConverter.config());RelRoot logicalPlan=sqlToRelConverter.convertQuery(sqlNodeValidated,false,true);System.out.println();System.out.println(RelOptUtil.dumpPlan("[Logical plan]",logical...