Struct tidb_query_datatype::expr::Flag

pub struct Flag {
    bits: u64,
}

Flags are used by DagRequest.flags to handle execution mode, like how to handle truncate error.

Fields

bits: u64

Implementations

impl Flag

pub const IGNORE_TRUNCATE: Flag

IGNORE_TRUNCATE indicates if truncate error should be ignored. Read-only statements should ignore truncate error, write statements should not ignore truncate error.

pub const TRUNCATE_AS_WARNING: Flag

TRUNCATE_AS_WARNING indicates if truncate error should be returned as warning. This flag only matters if IGNORE_TRUNCATE is not set, in strict sql mode, truncate error should be returned as error, in non-strict sql mode, truncate error should be saved as warning.

pub const PAD_CHAR_TO_FULL_LENGTH: Flag

PAD_CHAR_TO_FULL_LENGTH indicates if sql_mode ‘PAD_CHAR_TO_FULL_LENGTH’ is set.

pub const IN_INSERT_STMT: Flag

IN_INSERT_STMT indicates if this is a INSERT statement.

pub const IN_UPDATE_OR_DELETE_STMT: Flag

IN_UPDATE_OR_DELETE_STMT indicates if this is a UPDATE statement or a DELETE statement.

pub const IN_SELECT_STMT: Flag

IN_SELECT_STMT indicates if this is a SELECT statement.

pub const OVERFLOW_AS_WARNING: Flag

OVERFLOW_AS_WARNING indicates if overflow error should be returned as warning. In strict sql mode, overflow error should be returned as error, in non-strict sql mode, overflow error should be saved as warning.

pub const DIVIDED_BY_ZERO_AS_WARNING: Flag

DIVIDED_BY_ZERO_AS_WARNING indicates if DividedByZero should be returned as warning.

pub const IN_LOAD_DATA_STMT: Flag

IN_LOAD_DATA_STMT indicates if this is a LOAD DATA statement.

pub const fn empty() -> Flag

Returns an empty set of flags

pub const fn all() -> Flag

Returns the set containing all flags.

pub const fn bits(&self) -> u64

Returns the raw value of the flags currently stored.

pub fn from_bits(bits: u64) -> Option<Flag>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: u64) -> Flag

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const unsafe fn from_bits_unchecked(bits: u64) -> Flag

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

pub const fn intersects(&self, other: Flag) -> bool

Returns true if there are flags common to both self and other.

pub const fn contains(&self, other: Flag) -> bool

Returns true all of the flags in other are contained within self.

pub fn insert(&mut self, other: Flag)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: Flag)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: Flag)

Toggles the specified flags in-place.

pub fn set(&mut self, other: Flag, value: bool)

Inserts or removes the specified flags depending on the passed value.

Trait Implementations

impl Binary for Flag

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

Formats the value using the given formatter.

impl BitAnd<Flag> for Flag

type Output = Flag

The resulting type after applying the & operator.

fn bitand(self, other: Flag) -> Flag

Returns the intersection between the two sets of flags.

impl BitAndAssign<Flag> for Flag

fn bitand_assign(&mut self, other: Flag)

Disables all flags disabled in the set.

impl BitOr<Flag> for Flag

type Output = Flag

The resulting type after applying the | operator.

fn bitor(self, other: Flag) -> Flag

Returns the union of the two sets of flags.

impl BitOrAssign<Flag> for Flag

fn bitor_assign(&mut self, other: Flag)

Adds the set of flags.

impl BitXor<Flag> for Flag

type Output = Flag

The resulting type after applying the ^ operator.

fn bitxor(self, other: Flag) -> Flag

Returns the left flags, but with all the right flags toggled.

impl BitXorAssign<Flag> for Flag

fn bitxor_assign(&mut self, other: Flag)

Toggles the set of flags.

impl Clone for Flag

fn clone(&self) -> Flag

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Flag

impl Debug for Flag

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

Formats the value using the given formatter.

impl Eq for Flag

impl Extend<Flag> for Flag

fn extend<T: IntoIterator<Item = Flag>>(&mut self, iterator: T)

Extends a collection with the contents of an iterator.

pub fn extend_one(&mut self, item: A)

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

Extends a collection with exactly one element.

pub fn extend_reserve(&mut self, additional: usize)

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

Reserves capacity in a collection for the given number of additional elements.

impl FromIterator<Flag> for Flag

fn from_iter<T: IntoIterator<Item = Flag>>(iterator: T) -> Flag

Creates a value from an iterator.

impl Hash for Flag

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl LowerHex for Flag

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

Formats the value using the given formatter.

impl Not for Flag

type Output = Flag

The resulting type after applying the ! operator.

fn not(self) -> Flag

Returns the complement of this set of flags.

impl Octal for Flag

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

Formats the value using the given formatter.

impl Ord for Flag

fn cmp(&self, other: &Flag) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Flag> for Flag

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<Flag> for Flag

fn partial_cmp(&self, other: &Flag) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for Flag

impl StructuralPartialEq for Flag

impl Sub<Flag> for Flag

type Output = Flag

The resulting type after applying the - operator.

fn sub(self, other: Flag) -> Flag

Returns the set difference of the two sets of flags.

impl SubAssign<Flag> for Flag

fn sub_assign(&mut self, other: Flag)

Disables all flags enabled in the set.

impl UpperHex for Flag

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

Formats the value using the given formatter.