Enum InvalidHeader 

pub enum InvalidHeader {
    Flags(u16),
    Offsets {
        lower: LocationIndex,
        upper: LocationIndex,
        special: LocationIndex,
    },
}

Why a header fails the checks Postgres runs before letting a page into the buffer pool.

Variants

Flags(u16)

pd_flags has a bit set that Postgres doesn’t define.

Offsets

pd_lower, pd_upper and pd_special are out of order or off the page, or pd_special isn’t aligned.

Fields

lower: LocationIndex

upper: LocationIndex

special: LocationIndex

Trait Implementations

impl Clone for InvalidHeader

fn clone(&self) -> InvalidHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InvalidHeader

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

Formats the value using the given formatter.

impl Display for InvalidHeader

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

Formats the value using the given formatter.

impl Error for InvalidHeader

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for InvalidHeader

fn eq(&self, other: &InvalidHeader) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for InvalidHeader

impl Eq for InvalidHeader

impl StructuralPartialEq for InvalidHeader