Enum postgres_parser::sys::RowCompareType

#[repr(u32)]pub enum RowCompareType {
    ROWCOMPARE_LT,
    ROWCOMPARE_LE,
    ROWCOMPARE_EQ,
    ROWCOMPARE_GE,
    ROWCOMPARE_GT,
    ROWCOMPARE_NE,
}

RowCompareExpr rowwise comparison, such as (a, b) <= (1, 2)

We support row comparison for any operator that can be determined to act like =, <>, <, <=, >, or >= (we determine this by looking for the operator in btree opfamilies). Note that the same operator name might map to a different operator for each pair of row elements, since the element datatypes can vary.

A RowCompareExpr node is only generated for the < <= > >= cases; the = and <> cases are translated to simple AND or OR combinations of the pairwise comparisons. However, we include = and <> in the RowCompareType enum for the convenience of parser logic.

Variants

ROWCOMPARE_LT

Values of this enum are chosen to match btree strategy numbers

ROWCOMPARE_LE

BTLessStrategyNumber

ROWCOMPARE_EQ

BTLessEqualStrategyNumber

ROWCOMPARE_GE

BTEqualStrategyNumber

ROWCOMPARE_GT

BTGreaterEqualStrategyNumber

ROWCOMPARE_NE

BTGreaterStrategyNumber

Trait Implementations

impl Clone for RowCompareType

fn clone(&self) -> RowCompareType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for RowCompareType

impl Debug for RowCompareType

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RowCompareType

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Eq for RowCompareType

impl Hash for RowCompareType

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl PartialEq<RowCompareType> for RowCompareType

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

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

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

This method tests for !=.

impl Serialize for RowCompareType

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for RowCompareType

impl StructuralPartialEq for RowCompareType