pg_upgrade 13 to 15 version

pg_upgrade 13 to 15 version

sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'

wget -qO- https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo tee /etc/apt/trusted.gpg.d/pgdg.asc &>/dev/null

sudo apt update -y


apt install postgresql-15

service postgresql stop 
 
/usr/lib/postgresql/15/bin/pg_upgrade \
  --old-datadir=/var/lib/postgresql/13/main \
  --new-datadir=/var/lib/postgresql/15/main \
  --old-bindir=/usr/lib/postgresql/13/bin \
  --new-bindir=/usr/lib/postgresql/15/bin \
  --old-options '-c config_file=/etc/postgresql/13/main/postgresql.conf' \
  --new-options '-c config_file=/etc/postgresql/15/main/postgresql.conf'
  
mcedit /etc/postgresql/15/main/postgresql.conf - swithc port to 5432

su - postgres

psql

select version ();