pub enum CopyTarget {
File {
path: Literal,
meta: Meta,
},
Stdin {
meta: Meta,
},
Stdout {
meta: Meta,
},
Program {
command: Literal,
meta: Meta,
},
}Expand description
The external endpoint of a COPY: a file, the client stream, or a subprocess.
STDIN/STDOUT are split so each renders the exact keyword written.
PostgreSQL’s grammar admits either with either direction (the TO STDIN /
FROM STDOUT mismatch is a later semantic check, not a parse error), so the
keyword the parser saw is recorded as-is rather than normalized by direction.
Variants§
File
A server-side file path (COPY … '<path>').
Stdin
The client input stream (FROM STDIN).
Stdout
The client output stream (TO STDOUT).
Program
A subprocess whose stdio is piped (COPY … PROGRAM '<cmd>').
Trait Implementations§
Source§impl Clone for CopyTarget
impl Clone for CopyTarget
Source§fn clone(&self) -> CopyTarget
fn clone(&self) -> CopyTarget
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreSource§impl Debug for CopyTarget
impl Debug for CopyTarget
Source§impl<'de> Deserialize<'de> for CopyTarget
impl<'de> Deserialize<'de> for CopyTarget
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
impl Eq for CopyTarget
Source§impl Hash for CopyTarget
impl Hash for CopyTarget
Source§impl PartialEq for CopyTarget
impl PartialEq for CopyTarget
Source§impl Render for CopyTarget
impl Render for CopyTarget
Source§fn render(&self, ctx: &RenderCtx<'_>, f: &mut Formatter<'_>) -> Result
fn render(&self, ctx: &RenderCtx<'_>, f: &mut Formatter<'_>) -> Result
Return the render for this value.
Source§fn operand_binding_power(&self) -> Option<BindingPower>
fn operand_binding_power(&self) -> Option<BindingPower>
The binding power this node contributes when it appears as an operand, or
None (the default) for a self-delimiting node — an atom, call, or
constructor — that never needs parentheses. Read moreSource§impl Serialize for CopyTarget
impl Serialize for CopyTarget
impl StructuralPartialEq for CopyTarget
Auto Trait Implementations§
impl Freeze for CopyTarget
impl RefUnwindSafe for CopyTarget
impl Send for CopyTarget
impl Sync for CopyTarget
impl Unpin for CopyTarget
impl UnsafeUnpin for CopyTarget
impl UnwindSafe for CopyTarget
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> DeserializeOwned for Twhere
T: for<'de> Deserialize<'de>,
Source§impl<T> DynAstExt for T
impl<T> DynAstExt for T
Source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Erase to
&dyn Any for downcasting a node back to its concrete type.Source§fn dyn_clone(&self) -> Box<dyn DynAstExt>
fn dyn_clone(&self) -> Box<dyn DynAstExt>
Clone into a fresh box — the object-safe stand-in for
Clone (whose
Self-returning signature cannot go through a vtable).Source§fn dyn_eq(&self, other: &dyn DynAstExt) -> bool
fn dyn_eq(&self, other: &dyn DynAstExt) -> bool
Structural equality against another erased node — the object-safe stand-in
for
PartialEq (whose &Self argument cannot go through a vtable). Equal
iff other holds the same concrete type and that type deems the values
equal; differently-typed nodes are never equal.