Package io.trino.plugin.jdbc.expression

Class ImplementCount

java.lang.Object

io.trino.plugin.jdbc.expression.ImplementCount

All Implemented Interfaces:

AggregateFunctionRule

public class ImplementCount
extends Object
implements AggregateFunctionRule

Implements count(x).

Nested Class Summary

Nested classes/interfaces inherited from interface io.trino.plugin.jdbc.expression.AggregateFunctionRule

AggregateFunctionRule.RewriteContext

Constructor Summary

Constructors

Constructor	Description
ImplementCount(JdbcTypeHandle bigintTypeHandle)

Method Summary

Modifier and Type	Method	Description
Pattern<AggregateFunction>	getPattern()
Optional<JdbcExpression>	rewrite(AggregateFunction aggregateFunction, Captures captures, AggregateFunctionRule.RewriteContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

ImplementCount

public ImplementCount(JdbcTypeHandle bigintTypeHandle)

Parameters:

bigintTypeHandle - A JdbcTypeHandle that will be mapped to BigintType by JdbcClient.toColumnMapping(io.trino.spi.connector.ConnectorSession, java.sql.Connection, io.trino.plugin.jdbc.JdbcTypeHandle).

Method Detail

getPattern

public Pattern<AggregateFunction> getPattern()

Specified by:

getPattern in interface AggregateFunctionRule

rewrite

public Optional<JdbcExpression> rewrite(AggregateFunction aggregateFunction,
                                        Captures captures,
                                        AggregateFunctionRule.RewriteContext context)

Specified by:

rewrite in interface AggregateFunctionRule