i am using postgresql 8.0.3 as a single user by running "postgres"
I want to purge all contents in the bufferpool, and I did this by calling "InitBufTable(256)" (buf_table.c) after each query. However, this seems not working for each followup query I still get less disk read (tracked by "smgrread()" in smgr.c) and increased bufferhitcount. Could anyone tell me which module shall i modify instead? ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster