Struct ColumnsBuilder 

pub struct ColumnsBuilder<'a> { /* private fields */ }

Implementations

impl<'a> ColumnsBuilder<'a>

pub fn new(ctx: &'a mut OperatorContext) -> Self

pub fn from_raw_ctx(ctx: *mut ContextFFI) -> Self

Create a builder from a raw *mut ContextFFI. Used by transform / procedure contexts that aren’t OperatorContext. The caller is responsible for ensuring the pointer outlives 'a.

pub fn acquire( &mut self, type_code: ColumnTypeCode, capacity: usize, ) -> Result<ColumnBuilder<'_>, FFIError>

Acquire a fresh column builder of the given type with at least capacity elements (bytes for var-len data buffer).

pub fn emit_insert( &mut self, post: &[CommittedColumn], names: &[&str], row_numbers: &[RowNumber], ) -> Result<(), FFIError>

pub fn emit_update( &mut self, pre: &[CommittedColumn], pre_names: &[&str], pre_row_count: usize, pre_row_numbers: &[RowNumber], post: &[CommittedColumn], post_names: &[&str], post_row_count: usize, post_row_numbers: &[RowNumber], ) -> Result<(), FFIError>

pub fn emit_remove( &mut self, pre: &[CommittedColumn], names: &[&str], row_numbers: &[RowNumber], ) -> Result<(), FFIError>