Struct udf_sys::UDF_ARGS

#[repr(C)]
pub struct UDF_ARGS {
    pub arg_count: c_uint,
    pub arg_type: *mut Item_result,
    pub args: *const *const c_char,
    pub lengths: *const c_ulong,
    pub maybe_null: *const c_char,
    pub attributes: *const *const c_char,
    pub attribute_lengths: *const c_ulong,
    pub extension: *const c_void,
}

Representation of a sequence of SQL arguments

Fields

arg_count: c_uint

Number of arguments present

arg_type: *mut Item_result

Buffer of item_result pointers that indicate argument type

Remains mutable because it can be set in xxx_init

args: *const *const c_char

Buffer of pointers to the arguments. Arguments may be of any type (specified in arg_type).

lengths: *const c_ulong

Buffer of lengths for string arguments

maybe_null: *const c_char

Indicates whether the argument may be null or not

attributes: *const *const c_char

Buffer of string pointers that hold variable names, for use with error messages

attribute_lengths: *const c_ulong

Buffer of lengths of attributes

extension: *const c_void

Extension is currently unused

Trait Implementations

impl Clone for UDF_ARGS

fn clone(&self) -> UDF_ARGS

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UDF_ARGS

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

Formats the value using the given formatter.