Changelog • qio

qio (development version)

write_parquet() writes a list of raw vectors as a binary (BYTE_ARRAY) column, with NULL for a missing value, and parquet_schema() declares it as "BINARY", "GEOMETRY" or "GEOGRAPHY". The geospatial types hold well-known binary with a crs (and, for GEOGRAPHY, an edge algorithm), and qio records each column chunk’s geospatial statistics.
geospatial_statistics() reports the bounding box and geometry types of every GEOMETRY and GEOGRAPHY column chunk, so readers can choose row groups by box before reading data.
Fixed the vendored carquet writer recording, for every row group after the first, geospatial statistics that included the earlier row groups.
schema() reports a GEOMETRY or GEOGRAPHY CRS whole however long it is. Files that put inline PROJJSON there, as DuckDB does, had it cut to 127 bytes.

CRAN release: 2026-09-29

Fixed undefined behavior reported by CRAN’s sanitizer checks (M1-SAN, clang-UBSAN and gcc-UBSAN). Batch reads no longer load integer and floating-point values through misaligned pointers, and writing a string column that contains empty strings no longer passes a NULL pointer to memcmp() or memcpy(). Results were already correct; only the undefined behavior is removed.

CRAN release: 2026-09-28