org.apache.flink.table.planner.calcite

Interface SqlExprToRexConverter

All Known Implementing Classes:

SqlExprToRexConverterImpl

public interface SqlExprToRexConverter

Converts SQL expressions to RexNode.

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rex.RexNode	convertToRexNode(String expr) Converts a SQL expression to a RexNode expression.
org.apache.calcite.rex.RexNode[]	convertToRexNodes(String[] exprs) Converts an array of SQL expressions to an array of RexNode expressions.

Method Detail

convertToRexNode

org.apache.calcite.rex.RexNode convertToRexNode(String expr)

Converts a SQL expression to a RexNode expression.

Parameters:

expr - a SQL expression which must be quoted and expanded, e.g. "`my_catalog`.`my_database`.`my_udf`(`f0`) + 1".

convertToRexNodes

org.apache.calcite.rex.RexNode[] convertToRexNodes(String[] exprs)

Converts an array of SQL expressions to an array of RexNode expressions.

Parameters:

exprs - SQL expressions which must be quoted and expanded, e.g. "`my_catalog`.`my_database`.`my_udf`(`f0`) + 1".