From 7c8d56fb235dd85dd12ff4b269c3603b06bc9f13 Mon Sep 17 00:00:00 2001 From: Michael Banck Date: Wed, 11 Jul 2018 10:23:01 +0200 Subject: [PATCH] Update README --- README.md | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index 64fc35c..1f1d071 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,5 @@ -pg_checksums - Activate/deactivate/verify checksums in offline clusters -======================================================================= +pg_checksums - Activate/deactivate/verify checksums in PostgreSQL clusters +========================================================================== `pg_checksums` is a small tool based on the `pg_verify_checksums` program available in PostgreSQL from version 11 on. In addition to verifying checksums, @@ -7,7 +7,8 @@ it can activate and deactivate them. The former requires all database blocks to be read and all page headers to be updated, so can take a long time on a large database. -The database cluster needs to be shutdown cleanly in order for the program to -operate. +The database cluster needs to be shutdown cleanly in the case of checksum +activation or deactivation, while checksum verification can be performed +online. PostgreSQL versions since 9.3 are supported.