io.prestosql.operator.scalar

Class JsonToMapCast

java.lang.Object

io.prestosql.metadata.SqlScalarFunction

io.prestosql.metadata.SqlOperator

io.prestosql.operator.scalar.JsonToMapCast

All Implemented Interfaces:

SqlFunction

public class JsonToMapCast
extends SqlOperator

Field Summary

Fields

Modifier and Type	Field and Description
static JsonToMapCast	JSON_TO_MAP

Method Summary

Modifier and Type	Method and Description
ScalarFunctionImplementation	specialize(BoundVariables boundVariables, int arity, TypeManager typeManager, FunctionRegistry functionRegistry)
static Block	toMap(MapType mapType, JsonUtil.BlockBuilderAppender keyAppender, JsonUtil.BlockBuilderAppender valueAppender, ConnectorSession connectorSession, io.airlift.slice.Slice json)

Methods inherited from class io.prestosql.metadata.SqlOperator

getDescription, isDeterministic, isHidden

Methods inherited from class io.prestosql.metadata.SqlScalarFunction

builder, getSignature

Methods inherited from class java.lang.Object

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

Field Detail

JSON_TO_MAP

public static final JsonToMapCast JSON_TO_MAP

Method Detail

specialize

public ScalarFunctionImplementation specialize(BoundVariables boundVariables,
                                               int arity,
                                               TypeManager typeManager,
                                               FunctionRegistry functionRegistry)

Specified by:

specialize in class SqlScalarFunction

toMap

public static Block toMap(MapType mapType,
                          JsonUtil.BlockBuilderAppender keyAppender,
                          JsonUtil.BlockBuilderAppender valueAppender,
                          ConnectorSession connectorSession,
                          io.airlift.slice.Slice json)