Can instead try Upgrading MediaWiki from PostgreSQL 8.2 to 8.3 and Upgrading PostgreSQL 8.2 to 8. Upgrading to 8.3 - MediaWiki lessons learned (talks about implicit casts and tsearch migration).Some of the articles previously available were lost in a server crash these are currently unavailable but might be restored by their authors eventually: Checkpoints and the Background Writer: PostgreSQL 8.3 Improvements and Migration. ![]() Converting tsearch2 to 8.3 (also note the manual section Migration from Pre-8.3 Text Search).Optimizing function calls in PostgreSQL 8.3.PostgreSQL 8.3 Features: Plan Invalidation.update your schema when upgrading or downgrading to a major Postgres version. PostgreSQL 8.3 Features: Arrays of Compound Types Useful snippet for finding out which version of postgres you are running.Here are a list of articles about new features in 8.3: See Re-adding implicit casts in PostgreSQL 8.3 for scripts Provision a read replica and choose to perform an upgrade when promoting it. ![]() ![]() IBM Cloud Databases for PostgreSQL offers two direct ways to perform a major version upgrade. While ultimately these programs should be rewritten to correct this incompatibility ( samples), it's possible to add back in missing casts to ease migration to 8.3. A new process is available via PostgreSQL logical replication that allows continued writes to the database during and after an upgrade. One of the biggest migration concerns the removal of implicit casts has broken many applications.
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