Enum postgres_parser::sys::SQLValueFunctionOp

#[repr(u32)]pub enum SQLValueFunctionOp {
    SVFOP_CURRENT_DATE,
    SVFOP_CURRENT_TIME,
    SVFOP_CURRENT_TIME_N,
    SVFOP_CURRENT_TIMESTAMP,
    SVFOP_CURRENT_TIMESTAMP_N,
    SVFOP_LOCALTIME,
    SVFOP_LOCALTIME_N,
    SVFOP_LOCALTIMESTAMP,
    SVFOP_LOCALTIMESTAMP_N,
    SVFOP_CURRENT_ROLE,
    SVFOP_CURRENT_USER,
    SVFOP_USER,
    SVFOP_SESSION_USER,
    SVFOP_CURRENT_CATALOG,
    SVFOP_CURRENT_SCHEMA,
}

SQLValueFunction parameterless functions with special grammar productions

The SQL standard categorizes some of these as and others as . We call 'em SQLValueFunctions for lack of a better term. We store type and typmod of the result so that some code doesn't need to know each function individually, and because we would need to store typmod anyway for some of the datetime functions. Note that currently, all variants return noncollating datatypes, so we do not need a collation field; also, all these functions are stable.

Variants

SVFOP_CURRENT_DATE

SVFOP_CURRENT_TIME

SVFOP_CURRENT_TIME_N

SVFOP_CURRENT_TIMESTAMP

SVFOP_CURRENT_TIMESTAMP_N

SVFOP_LOCALTIME

SVFOP_LOCALTIME_N

SVFOP_LOCALTIMESTAMP

SVFOP_LOCALTIMESTAMP_N

SVFOP_CURRENT_ROLE

SVFOP_CURRENT_USER

SVFOP_USER

SVFOP_SESSION_USER

SVFOP_CURRENT_CATALOG

SVFOP_CURRENT_SCHEMA

Trait Implementations

impl Clone for SQLValueFunctionOp

fn clone(&self) -> SQLValueFunctionOp

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for SQLValueFunctionOp

impl Debug for SQLValueFunctionOp

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SQLValueFunctionOp

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

Deserialize this value from the given Serde deserializer.

impl Eq for SQLValueFunctionOp

impl Hash for SQLValueFunctionOp

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<SQLValueFunctionOp> for SQLValueFunctionOp

fn eq(&self, other: &SQLValueFunctionOp) -> 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 SQLValueFunctionOp

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 SQLValueFunctionOp

impl StructuralPartialEq for SQLValueFunctionOp