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How to Review PostgreSQL Config Before Production ​

July 2026

A good PostgreSQL review proves the connection path and then settles whether the source boundary is table-based, query-based, or expected to evolve into logical-replication CDC.

Short Answer ​

Review a PostgreSQL source config by checking host, port, user, password, and database, or by checking the full connection_string if the team prefers a DSN. Then decide whether the production contract is tables or query, because the docs make clear that a custom query overrides table selection and changes what the connector promises to deliver.

A clean review could say: connect to postgres.internal on 5432, read from database: app, and extract public.customers plus public.orders. That is very different from a config that includes one custom SQL query joining five tables. Both can work, but only one gives a table-level source boundary, and the review should name that difference before production.

Why Teams Struggle with This ​

PostgreSQL is familiar enough that teams often skip the contract discussion and go straight to connectivity. That misses the real production questions: which tables or views are part of the handoff, whether a custom query is now business logic, and whether future CDC plans imply logical-replication prerequisites.

  • The runner has to reach the configured host and port from the real production environment, not only from a developer machine.
  • Using connection_string can be convenient, but reviewers still need to verify the underlying host, database, and auth details it contains.
  • If query is present, it overrides tables, which makes the SQL text part of the production extract contract.
  • If CDC is planned, the review should note that PostgreSQL uses WAL logical replication and may need different source permissions later.

How Skippr Handles It ​

Skippr keeps the PostgreSQL surface readable: direct connection fields or one DSN, plus optional tables or query. That lets reviewers focus on the actual source boundary instead of deciphering connector-specific indirection.

The connector also supports a staged path from batch reads to CDC. That is useful, but the production review is strongest when the first release already makes the table or query contract explicit and easy to reason about.

  • Supports either discrete connection fields or a full connection string.
  • Can read explicit table lists or one overriding SQL query.
  • Uses environment-variable-friendly password handling.
  • Can extend into WAL logical-replication CDC when the upstream setup is ready.

What the First Useful Version Looks Like ​

The first useful version is one database, one small table list or one deliberate query, and one run that proves the read path from production networking is real.

If the team cannot yet say whether the connector boundary is tables or SQL, pause there. That decision matters more than adding extra objects on day one.