pub type AcquireSampleRowsFunc = Option<unsafe extern "C" fn(relation: Relation, elevel: c_int, rows: *mut HeapTuple, targrows: c_int, totalrows: *mut f64, totaldeadrows: *mut f64) -> c_int>;Aliased Type§
enum AcquireSampleRowsFunc {
None,
Some(unsafe extern "C" fn(_: *mut RelationData, _: i32, _: *mut *mut HeapTupleData, _: i32, _: *mut f64, _: *mut f64) -> i32),
}