# Upgrading PostgreSQL version on FreeBSD
For minimal downtime during migration, we will use `pg_upgrade` ... ```
You can apply this patch while compiling new version's port (issue `make`, stop it with ctrl+c after d... then issue `make` again)
## Compile old and new version from ports
Replace `PSQLOLDVERSION` with major version of your existing PostgreSQL installation, and `PSQ
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- $this->use_set_names = (version_compare(PHP_VERSION, '5.2.3', '>=') && version_compare(mysql_get_server_info(), '5.0.7', '>=')) ? FALSE :