Package org.apache.flink.table.planner.operations

Class SqlNodeToOperationConversion

java.lang.Object
org.apache.flink.table.planner.operations.SqlNodeToOperationConversion
public class SqlNodeToOperationConversion extends Object
Mix-in tool class for SqlNode that allows DDL commands to be converted to Operation.

For every kind of SqlNode, there needs to have a corresponding #convert(type) method, the 'type' argument should be the subclass of the supported SqlNode.

Every #convert() should return a Operation which can be used in Planner.

  • Method Summary

    Modifier and Type
    Method
    Description
    static Optional<org.apache.flink.table.operations.Operation>
    convert(FlinkPlannerImpl flinkPlanner, org.apache.flink.table.catalog.CatalogManager catalogManager, org.apache.calcite.sql.SqlNode sqlNode)
    This is the main entrance for executing all kinds of DDL/DML SqlNodes, different SqlNode will have it's implementation in the #convert(type) method whose 'type' argument is subclass of SqlNode.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Method Details

    • convert

      public static Optional<org.apache.flink.table.operations.Operation> convert(FlinkPlannerImpl flinkPlanner, org.apache.flink.table.catalog.CatalogManager catalogManager, org.apache.calcite.sql.SqlNode sqlNode)
      This is the main entrance for executing all kinds of DDL/DML SqlNodes, different SqlNode will have it's implementation in the #convert(type) method whose 'type' argument is subclass of SqlNode.
      Parameters:
      flinkPlanner - FlinkPlannerImpl to convertCreateTable sql node to rel node
      catalogManager - CatalogManager to resolve full path for operations
      sqlNode - SqlNode to execute on