ITAGAKI Takahiro <[EMAIL PROTECTED]> writes: > BTW, why REINDEX requires access exclusive lock? Read-only queries > are forbidden during the operation now, but I feel they are ok > because REINDEX only reads existing tuples. Can we do REINDEX > holding only shared lock on the index?
No. When you commit the reindex, the old copy of the index will instantaneously disappear; it will not do for someone to be actively scanning that copy. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend