columnarV2Magic top-level constant

int const columnarV2Magic

Wire constants for the columnar v2 result layout (row-major v1 remains default). Emitter/parser integration is not wired; see doc/notes/columnar_protocol_sketch.md and the Rust columnar-v2 feature.

The magic matches the Rust odbc_engine crate's columnar_v2::COLUMNAR_V2_MAGIC (u32::from_le_bytes(*b"ODBC")).

Implementation

const int columnarV2Magic = 0x4342444F;