SQLite Forum

shared in memory db: :memory:+shared cache OR memdb VFS?
And one question I had when I saw the 3.36 announcement regarding MemDB VFS,  
was whether WAL mode was supported in the new mode, for MVCC.

All readers/writers are in the same process, so having shared-memory for WAL  
*downgrades* to plain memory then, just with some synchronization, no?