ITAGAKI Takahiro <[EMAIL PROTECTED]> writes: > I tested 8.3beta4 with DBT-3 (TPC-H) and found unstable selection of plans. > Planner randomly selected two types of plans (A, B) when I repeated EXPLAIN.
Are you sure the statistics weren't changing underneath you (due to auto-vacuum or auto-analyze)? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 7: You can help support the PostgreSQL project by donating at http://www.postgresql.org/about/donate