Reference Guide > TDV Query Engine Options > SELECT Options > PUSH_NULL_SELECTS (SELECT OPTION)
 
PUSH_NULL_SELECTS (SELECT OPTION)
PUSH_NULL_SELECTS is an optimization option to push null scans to the target datasource. This may help queries to push null select to the datasource.
Operator
SELECT
Syntax
push_null_selects
Example
SELECT {OPTION PUSH_NULL_SELECTS} TAN(column1) FROM table1