Type Definition odbc_api::buffers::ColumnarAnyBuffer

pub type ColumnarAnyBuffer = ColumnarBuffer<AnyBuffer>;

Flexible columnar buffer implementation. Bind this to a cursor to fetch values in bulk, or pass this as a parameter to a statement, to submit many parameters at once.

Implementations

impl ColumnarAnyBuffer

pub fn from_description(
    capacity: usize,
    descs: impl IntoIterator<Item = BufferDescription>
) -> Self

👎Deprecated: Use from_descs instead

Allocates a ColumnarBuffer fitting the buffer descriptions.

pub fn from_descs(
    capacity: usize,
    descs: impl IntoIterator<Item = BufferDesc>
) -> Self

Allocates a ColumnarBuffer fitting the buffer descriptions.

pub fn try_from_description(
    capacity: usize,
    descs: impl Iterator<Item = BufferDescription>
) -> Result<Self, Error>

👎Deprecated: Use try from descs

Allocates a ColumnarBuffer fitting the buffer descriptions. If not enough memory is available to allocate the buffers this function fails with Error::TooLargeColumnBufferSize. This function is slower than Self::from_description which would just panic if not enough memory is available for allocation.

pub fn try_from_descs(
    capacity: usize,
    descs: impl IntoIterator<Item = BufferDesc>
) -> Result<Self, Error>

Allocates a ColumnarBuffer fitting the buffer descriptions. If not enough memory is available to allocate the buffers this function fails with Error::TooLargeColumnBufferSize. This function is slower than Self::from_description which would just panic if not enough memory is available for allocation.

pub fn from_description_and_indices(
    max_rows: usize,
    description: impl Iterator<Item = (u16, BufferDescription)>
) -> ColumnarBuffer<AnyBuffer>

👎Deprecated: use from_descs_and_indices

Allows you to pass the buffer descriptions together with a one based column index referring the column, the buffer is supposed to bind to. This allows you also to ignore columns in a result set, by not binding them at all. There is no restriction on the order of column indices passed, but the function will panic, if the indices are not unique.

pub fn from_descs_and_indices(
    max_rows: usize,
    description: impl Iterator<Item = (u16, BufferDesc)>
) -> ColumnarBuffer<AnyBuffer>

Allows you to pass the buffer descriptions together with a one based column index referring the column, the buffer is supposed to bind to. This allows you also to ignore columns in a result set, by not binding them at all. There is no restriction on the order of column indices passed, but the function will panic, if the indices are not unique.