Register a Parquet-backed assay as a DuckDB view for out-of-core queries

Creates (or replaces) a DuckDB view over an assay Parquet file written by writeParquet(), using DuckDB's read_parquet() so that aggregates are computed directly over the file without loading it into R. The view columns are ch1, ch2, ... (one per channel).

Usage

registerParquetAssay(con, dir, view_name = "signals", assay = NULL)

Arguments

con

A DuckDB connection (from connectDatabase()).

dir

A directory written by writeParquet().

view_name

Name of the DuckDB view to create (default "signals").

assay

Assay to expose; defaults to the manifest's default assay.

Value

The view_name, invisibly.

See also

writeParquet(), registerExperiment()