pgrx_pg_sys

Function ineq_histogram_selectivity

Source 
pub unsafe fn ineq_histogram_selectivity(
    arg_root: *mut PlannerInfo,
    arg_vardata: *mut VariableStatData,
    arg_opoid: Oid,
    arg_opproc: *mut FmgrInfo,
    arg_isgt: bool,
    arg_iseq: bool,
    arg_collation: Oid,
    arg_constval: Datum,
    arg_consttype: Oid,
) -> f64