Fill Values for Missing Data from Database Using Apache Cassandra Database C++ Interface

When you import data from a Cassandra^® database into MATLAB^® using the partitionRead or executecql functions of the Apache^® Cassandra database C++ interface, these functions convert the fill values for missing data from the Cassandra column to the corresponding MATLAB values. This table identifies the data types in a Cassandra database column (Cassandra Query Language, or CQL, data type) and the corresponding fill value for missing data in the MATLAB table.

CQL Data Type	MATLAB Fill Value
ascii	<missing>
bigint	0
blob	[]
boolean	false
counter	0
date	NaT
decimal	<missing>
double	NaN
float	NaN
inet	<missing>
int	0
list<type>	[]
map<keyType,valueType>	0x2 table (empty table)
set<type>	[]
smallint	0
text	<missing>
time	NaN
timestamp	NaT
timeuuid	<missing>
tinyint	0
tuple<Type1,...,TypeN>	1xn table, where the missing value in each variable is the MATLAB fill value for the corresponding CQL data type
user-defined type (UDT)	1xn table, where the missing value in each variable is the MATLAB fill value for the corresponding CQL data type
uuid	<missing>
varchar	<missing>
varint	<missing>