Trait ScalarRet 

pub trait ScalarRet {
    // Required method
    fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>;
}

Read and write views over a single column of a DataChunkHandle, plus the ScalarArg/ScalarRet marshalling traits. A Rust type writable into one row of a VectorMut.

Required Methods

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

Writes self at row in v.

Errors

Returns an error if self cannot be converted to a DuckDB value.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ScalarRet for &str

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for String

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for bool

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for f32

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for f64

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for i8

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for i16

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for i32

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for i64

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for i128

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for u8

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for u16

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for u32

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for u64

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl ScalarRet for u128

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

impl<T: ScalarRet> ScalarRet for Option<T>

fn write(self, v: &mut VectorMut<'_>, row: usize) -> UdfResult<()>

Implementors