ColumnList support requires OmniSciDB 5.6 or newer
In OmniSciDB, an array has the following internal representation:
*Notice that returning an empty array is an invalid operation that might crash the server.
One can also use one of the array creation functions as specified in the python Array API standard: full
, full_like
, zeros
, zeros_like
, ones
and ones_like
:
You can either check if an array is null or if an array value is null
OmniSciDB supports many data types but not all of them are supported by the Remote Backend Compiler.
Datatype
Size (bytes)
Notes
BOOLEAN
1
TRUE: 'true'
, '1'
, 't'
. FALSE: 'false'
, '0'
, 'f'
. Text values are not case-sensitive.
TINYINT
1
Minimum value: -127
; maximum value: 127
SMALLINT
2
Minimum value: -32,767
; maximum value: 32,767
INT
4
Minimum value: -2,147,483,647
; maximum value: 2,147,483,647
.
BIGINT
8
Minimum value: -9,223,372,036,854,775,807
; maximum value: 9,223,372,036,854,775,807
.
RBC also supports Array<T>
where T
is one of the following scalar types seen above. Both fixed and variable length arrays are supported in RBC. For more information, see the Array page.