static DataTypePtr createExect(const ASTPtr & arguments) { if (!arguments || arguments->children.size() != 1) throw Exception("Decimal data type family must have exactly two arguments: precision and scale", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH); const ASTLiteral * scale_arg = typeid_cast<const ASTLiteral *>(arguments->children[0].get()); if (!scale_arg || !(scale_arg->value.getType() == Field::Types::Int64 || scale_arg->value.getType() == Field::Types::UInt64)) throw Exception("Decimal data type family must have a two numbers as its arguments", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT); UInt64 precision = maxDecimalPrecision<T>(); UInt64 scale = scale_arg->value.get<UInt64>(); return createDecimal(precision, scale); }
static DataTypePtr create(const ASTPtr & arguments) { if (!arguments || arguments->children.size() != 2) throw Exception("Decimal data type family must have exactly two arguments: precision and scale", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH); const auto * precision = arguments->children[0]->as<ASTLiteral>(); const auto * scale = arguments->children[1]->as<ASTLiteral>(); if (!precision || precision->value.getType() != Field::Types::UInt64 || !scale || !(scale->value.getType() == Field::Types::Int64 || scale->value.getType() == Field::Types::UInt64)) throw Exception("Decimal data type family must have a two numbers as its arguments", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT); UInt64 precision_value = precision->value.get<UInt64>(); UInt64 scale_value = scale->value.get<UInt64>(); return createDecimal(precision_value, scale_value); }