Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
ExprResultMap in datafusion::optimizer::decorrelate - Rust
[go: Go Back, main page]

Type Definition datafusion::optimizer::decorrelate::ExprResultMap

source · 
pub type ExprResultMap = HashMap<String, Expr, RandomState>;
Expand description

Mapping from expr display name to its evaluation result on empty record batch (for example: ‘count()’ is ‘ScalarValue(0)’, ‘count() + 2’ is ‘ScalarValue(2)’)