The reindex_and_refresh_collation.sh script is created to automate the process of reindexing tables and refreshing the collation version for all user databases in a PostgreSQL server. This utility is particularly useful when you've updated the locale or collation libraries on the system where PostgreSQL is installed, as these updates could cause mismatches between the databases' expected collation version and the operating system's provided version.
- Retrieves a list of all user databases (excluding system templates) on the PostgreSQL server.