org.apache.flink.table.planner.delegation.hive

Class SqlFunctionConverter

java.lang.Object

org.apache.calcite.rex.RexShuttle

org.apache.flink.table.planner.delegation.hive.SqlFunctionConverter

All Implemented Interfaces:

org.apache.calcite.rex.RexVisitor<org.apache.calcite.rex.RexNode>

Direct Known Subclasses:

TableFunctionConverter

public class SqlFunctionConverter
extends org.apache.calcite.rex.RexShuttle

A RexShuttle that converts Hive function calls so that Flink recognizes them.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.calcite.rex.RexBuilder	builder
protected org.apache.calcite.plan.RelOptCluster	cluster

Constructor Summary

Constructors

Constructor and Description
SqlFunctionConverter(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.sql.SqlOperatorTable opTable, org.apache.calcite.sql.validate.SqlNameMatcher nameMatcher)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.sql.SqlOperator	convertOperator(org.apache.calcite.sql.SqlOperator operator)
boolean	hasOverloadedOp(org.apache.calcite.sql.SqlOperator operator, org.apache.calcite.sql.SqlFunctionCategory functionType)
org.apache.calcite.rex.RexNode	visitCall(org.apache.calcite.rex.RexCall call)
org.apache.calcite.rex.RexNode	visitOver(org.apache.calcite.rex.RexOver over)

Methods inherited from class org.apache.calcite.rex.RexShuttle

apply, apply, mutate, visitArray, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitFieldCollations, visitInputRef, visitList, visitLiteral, visitLocalRef, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef, visitWindow

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rex.RexVisitor

visitEach, visitList, visitList

Field Detail

cluster

protected final org.apache.calcite.plan.RelOptCluster cluster

builder

protected final org.apache.calcite.rex.RexBuilder builder

Constructor Detail

SqlFunctionConverter

public SqlFunctionConverter(org.apache.calcite.plan.RelOptCluster cluster,
                            org.apache.calcite.sql.SqlOperatorTable opTable,
                            org.apache.calcite.sql.validate.SqlNameMatcher nameMatcher)

Method Detail

visitCall

public org.apache.calcite.rex.RexNode visitCall(org.apache.calcite.rex.RexCall call)

Specified by:

visitCall in interface org.apache.calcite.rex.RexVisitor<org.apache.calcite.rex.RexNode>

Overrides:

visitCall in class org.apache.calcite.rex.RexShuttle

visitOver

public org.apache.calcite.rex.RexNode visitOver(org.apache.calcite.rex.RexOver over)

Specified by:

visitOver in interface org.apache.calcite.rex.RexVisitor<org.apache.calcite.rex.RexNode>

Overrides:

visitOver in class org.apache.calcite.rex.RexShuttle

convertOperator

public org.apache.calcite.sql.SqlOperator convertOperator(org.apache.calcite.sql.SqlOperator operator)

hasOverloadedOp

public boolean hasOverloadedOp(org.apache.calcite.sql.SqlOperator operator,
                               org.apache.calcite.sql.SqlFunctionCategory functionType)