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mod deserialize;
mod schema;
pub use deserialize::deserialize;
pub use schema::infer_schema;
use super::api;
pub fn buffer_from_metadata(
resut_set_metadata: &impl api::ResultSetMetadata,
max_batch_size: usize,
) -> std::result::Result<api::buffers::ColumnarBuffer<api::buffers::AnyColumnBuffer>, api::Error> {
let num_cols: u16 = resut_set_metadata.num_result_cols()? as u16;
let descs = (0..num_cols)
.map(|index| {
let mut column_description = api::ColumnDescription::default();
resut_set_metadata.describe_col(index + 1, &mut column_description)?;
Ok(api::buffers::BufferDescription {
nullable: column_description.could_be_nullable(),
kind: api::buffers::BufferKind::from_data_type(column_description.data_type)
.unwrap(),
})
})
.collect::<std::result::Result<Vec<_>, api::Error>>()?;
Ok(api::buffers::buffer_from_description(
max_batch_size,
descs.into_iter(),
))
}