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CopyWriter

chopin_pg::connection

Struct CopyWriter 

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pub struct CopyWriter<'a> { /* private fields */ }
Expand description

COPY writer for streaming data into PostgreSQL via COPY FROM STDIN.

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impl<'a> CopyWriter<'a>

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pub fn write_data(&mut self, data: &[u8]) -> PgResult<()>

Write a chunk of COPY data.

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pub fn fail(self, reason: &str) -> PgResult<()>

Abort the COPY operation with an error message.

Sends a CopyFail message to the server. The server will respond with an ErrorResponse and then ReadyForQuery. The connection remains usable after this call.

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pub fn write_row(&mut self, columns: &[&str]) -> PgResult<()>

Write a text row (tab-separated values with newline).

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pub fn finish(self) -> PgResult<u64>

Finish the COPY operation successfully.

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impl<'a> Freeze for CopyWriter<'a>

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impl<'a> !RefUnwindSafe for CopyWriter<'a>

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impl<'a> Send for CopyWriter<'a>

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impl<'a> Sync for CopyWriter<'a>

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impl<'a> Unpin for CopyWriter<'a>

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impl<'a> UnsafeUnpin for CopyWriter<'a>

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impl<'a> !UnwindSafe for CopyWriter<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.