Struct StructVector 

pub struct StructVector;

Operations on STRUCT vectors (accessing child field vectors).

Implementations

impl StructVector

pub unsafe fn get_child( vector: duckdb_vector, field_idx: usize, ) -> duckdb_vector

Returns the child vector for the given field index of a STRUCT vector.

Field indices correspond to the order of fields in the STRUCT type definition.

Safety

• vector must be a valid DuckDB STRUCT vector.
• field_idx must be a valid field index (0 ≤ field_idx < number of struct fields).
• The returned vector is borrowed from vector and must not outlive it.

pub unsafe fn field_reader( vector: duckdb_vector, field_idx: usize, row_count: usize, ) -> VectorReader

Creates a VectorReader for the given field of a STRUCT vector.

Safety

• vector must be a valid DuckDB STRUCT vector.
• field_idx must be a valid field index.
• row_count must match the number of rows in the parent chunk.

pub unsafe fn field_writer( vector: duckdb_vector, field_idx: usize, ) -> VectorWriter

Creates a VectorWriter for the given field of a STRUCT vector.

Safety

• vector must be a valid DuckDB STRUCT vector.
• field_idx must be a valid field index.