ClickHouse/dbms/src/Functions/FunctionsConversion.cpp

97 lines
4.5 KiB
C++

#include <Functions/FunctionFactory.h>
#include <Functions/FunctionsConversion.h>
namespace DB
{
void throwExceptionForIncompletelyParsedValue(
ReadBuffer & read_buffer, Block & block, size_t result)
{
const IDataType & to_type = *block.getByPosition(result).type;
WriteBufferFromOwnString message_buf;
message_buf << "Cannot parse string " << quote << String(read_buffer.buffer().begin(), read_buffer.buffer().size())
<< " as " << to_type.getName()
<< ": syntax error";
if (read_buffer.offset())
message_buf << " at position " << read_buffer.offset()
<< " (parsed just " << quote << String(read_buffer.buffer().begin(), read_buffer.offset()) << ")";
else
message_buf << " at begin of string";
if (isNumber(to_type))
message_buf << ". Note: there are to" << to_type.getName() << "OrZero and to" << to_type.getName() << "OrNull functions, which returns zero/NULL instead of throwing exception.";
throw Exception(message_buf.str(), ErrorCodes::CANNOT_PARSE_TEXT);
}
void registerFunctionsConversion(FunctionFactory & factory)
{
factory.registerFunction<FunctionToUInt8>();
factory.registerFunction<FunctionToUInt16>();
factory.registerFunction<FunctionToUInt32>();
factory.registerFunction<FunctionToUInt64>();
factory.registerFunction<FunctionToInt8>();
factory.registerFunction<FunctionToInt16>();
factory.registerFunction<FunctionToInt32>();
factory.registerFunction<FunctionToInt64>();
factory.registerFunction<FunctionToFloat32>();
factory.registerFunction<FunctionToFloat64>();
factory.registerFunction<FunctionToDecimal32>();
factory.registerFunction<FunctionToDecimal64>();
factory.registerFunction<FunctionToDecimal128>();
factory.registerFunction<FunctionToDate>();
factory.registerFunction<FunctionToDateTime>();
factory.registerFunction<FunctionToUUID>();
factory.registerFunction<FunctionToString>();
factory.registerFunction<FunctionToFixedString>();
factory.registerFunction<FunctionToUnixTimestamp>();
factory.registerFunction<FunctionBuilderCast>(FunctionFactory::CaseInsensitive);
factory.registerFunction<FunctionToUInt8OrZero>();
factory.registerFunction<FunctionToUInt16OrZero>();
factory.registerFunction<FunctionToUInt32OrZero>();
factory.registerFunction<FunctionToUInt64OrZero>();
factory.registerFunction<FunctionToInt8OrZero>();
factory.registerFunction<FunctionToInt16OrZero>();
factory.registerFunction<FunctionToInt32OrZero>();
factory.registerFunction<FunctionToInt64OrZero>();
factory.registerFunction<FunctionToFloat32OrZero>();
factory.registerFunction<FunctionToFloat64OrZero>();
factory.registerFunction<FunctionToDateOrZero>();
factory.registerFunction<FunctionToDateTimeOrZero>();
factory.registerFunction<FunctionToUInt8OrNull>();
factory.registerFunction<FunctionToUInt16OrNull>();
factory.registerFunction<FunctionToUInt32OrNull>();
factory.registerFunction<FunctionToUInt64OrNull>();
factory.registerFunction<FunctionToInt8OrNull>();
factory.registerFunction<FunctionToInt16OrNull>();
factory.registerFunction<FunctionToInt32OrNull>();
factory.registerFunction<FunctionToInt64OrNull>();
factory.registerFunction<FunctionToFloat32OrNull>();
factory.registerFunction<FunctionToFloat64OrNull>();
factory.registerFunction<FunctionToDateOrNull>();
factory.registerFunction<FunctionToDateTimeOrNull>();
factory.registerFunction<FunctionParseDateTimeBestEffort>();
factory.registerFunction<FunctionParseDateTimeBestEffortOrZero>();
factory.registerFunction<FunctionParseDateTimeBestEffortOrNull>();
factory.registerFunction<FunctionConvert<DataTypeInterval, NameToIntervalSecond, PositiveMonotonicity>>();
factory.registerFunction<FunctionConvert<DataTypeInterval, NameToIntervalMinute, PositiveMonotonicity>>();
factory.registerFunction<FunctionConvert<DataTypeInterval, NameToIntervalHour, PositiveMonotonicity>>();
factory.registerFunction<FunctionConvert<DataTypeInterval, NameToIntervalDay, PositiveMonotonicity>>();
factory.registerFunction<FunctionConvert<DataTypeInterval, NameToIntervalWeek, PositiveMonotonicity>>();
factory.registerFunction<FunctionConvert<DataTypeInterval, NameToIntervalMonth, PositiveMonotonicity>>();
factory.registerFunction<FunctionConvert<DataTypeInterval, NameToIntervalQuarter, PositiveMonotonicity>>();
factory.registerFunction<FunctionConvert<DataTypeInterval, NameToIntervalYear, PositiveMonotonicity>>();
}
}