Struct mariadb_sys::Query

#[repr(C)]
pub struct Query {
    pub select: *mut List,
    pub distinct: bool,
    pub from: *mut TABLE_LIST,
    pub where_: *mut Item,
    pub group_by: *mut ORDER,
    pub order_by: *mut ORDER,
    pub having: *mut Item,
    pub limit: *mut Select_limit_counters,
}

The structure describing various parts of the query

The engine is supposed to take out parts that it can do internally. For example, if the engine can return results sorted according to the specified order_by clause, it sets Query::order_by=NULL before returning.

At the moment the engine must take group_by (or return an error), and optionally can take distinct, where, order_by, and having.

The engine should not modify the select list. It is the extended SELECT clause (extended, because it has more items than the original user-specified SELECT clause) and it contains all aggregate functions, used in the query.

Fields

select: *mut List

distinct: bool

from: *mut TABLE_LIST

where_: *mut Item

group_by: *mut ORDER

order_by: *mut ORDER

having: *mut Item

limit: *mut Select_limit_counters

Trait Implementations

impl Debug for Query

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.