Hi, While investigating out-of-memory issues, we noticed that during large sort operations, memory usage spikes. It turns out SQLite uses memory-mapped file I/O for temp files, which can be GBs in size in our case. The mmap_size PRAGMA is never used. It looks like this bit of code in `vdbeSorterOpenTempFile` (vdbesort.c) is setting the Mmap max to ~2GB: ``` i64 max = SQLITE_MAX_MMAP_SIZE; sqlite3OsFileControlHint(*ppFd, SQLITE_FCNTL_MMAP_SIZE, (void*)&max); ``` To work around this, we set SQLITE_MAX_MMAP_SIZE=0. Is this expected behavior? Platform: Windows 32-bit.