{"_yql_row_spec"={
	"Type"=["StructType";[
	    ["Bool";["OptionalType";["DataType";"Bool"]]];
	    ["Int8";["OptionalType";["DataType";"Int8"]]];
	    ["Uint8";["OptionalType";["DataType";"Uint8"]]];
	    ["Int16";["OptionalType";["DataType";"Int16"]]];
	    ["Uint16";["OptionalType";["DataType";"Uint16"]]];
	    ["Int32";["OptionalType";["DataType";"Int32"]]];
	    ["Uint32";["OptionalType";["DataType";"Uint32"]]];
	    ["Int64";["OptionalType";["DataType";"Int64"]]];
	    ["Uint64";["OptionalType";["DataType";"Uint64"]]];
	    ["Double";["OptionalType";["DataType";"Double"]]];
	    ["Float";["OptionalType";["DataType";"Float"]]];
	    ["String";["OptionalType";["DataType";"String"]]];
	    ["Utf8";["OptionalType";["DataType";"Utf8"]]];
	    ["Yson";["OptionalType";["DataType";"Yson"]]];
	    ["Json";["OptionalType";["DataType";"Json"]]];
	    ["Uuid";["OptionalType";["DataType";"Uuid"]]];
	    ["Date";["OptionalType";["DataType";"Date"]]];
	    ["Datetime";["OptionalType";["DataType";"Datetime"]]];
	    ["Timestamp";["OptionalType";["DataType";"Timestamp"]]];
	    ["Interval";["OptionalType";["DataType";"Interval"]]];
	    ["TzDate";["OptionalType";["DataType";"TzDate"]]];
	    ["TzDatetime";["OptionalType";["DataType";"TzDatetime"]]];
	    ["TzTimestamp";["OptionalType";["DataType";"TzTimestamp"]]];
	    ["Decimal";["OptionalType";["DataType";"Decimal";"10";"1"]]];
	    ["DyNumber";["OptionalType";["DataType";"DyNumber"]]];
	    ["JsonDocument";["OptionalType";["DataType";"JsonDocument"]]];
	    ["Date32";["OptionalType";["DataType";"Date32"]]];
	    ["Datetime64";["OptionalType";["DataType";"Datetime64"]]];
	    ["Timestamp64";["OptionalType";["DataType";"Timestamp64"]]];
	    ["Interval64";["OptionalType";["DataType";"Interval64"]]];	    
	]];
}}