Notes from the Churros team.https://churros.shhttps://churros.sh/blog/sql-date-format-postgres-guidehttps://churros.sh/blog/sql-date-format-postgres-guideA practical Postgres-first guide to SQL date formatting, ISO 8601, TO_CHAR, cross-dialect patterns, timezone handling, and index-friendly date filters.Sat, 09 May 2026 00:00:00 GMThttps://churros.sh/blog/sql-query-add-column-default-value-guidehttps://churros.sh/blog/sql-query-add-column-default-value-guideA practical PostgreSQL guide to adding a column with a default value, covering ALTER TABLE syntax, locking behavior, table rewrites, and safer production migration patterns.Sat, 09 May 2026 00:00:00 GMThttps://churros.sh/blog/postgres-delete-user-safe-guidehttps://churros.sh/blog/postgres-delete-user-safe-guideA production-minded sequence for removing a Postgres role — terminate sessions, audit database and object ownership, REASSIGN OWNED, DROP OWNED, then DROP USER — with a cluster-wide script for multi-database cleanup.Thu, 07 May 2026 00:00:00 GMThttps://churros.sh/blog/sql-case-statement-examples-postgreshttps://churros.sh/blog/sql-case-statement-examples-postgresEight practical CASE patterns — from categorical mapping and conditional aggregation to pivots, custom sorts, conditional updates, and window-function running totals — with the workflow for testing each one before it ships.Thu, 07 May 2026 00:00:00 GMThttps://churros.sh/blog/sql-client-for-mac-2026-guidehttps://churros.sh/blog/sql-client-for-mac-2026-guideWhat to actually look for in a SQL client when you live in Postgres on macOS — native feel, safe editing, schema-aware autocomplete, and connection ergonomics that match how cloud Postgres works today.Thu, 07 May 2026 00:00:00 GMThttps://churros.sh/blog/start-a-postgres-server-on-machttps://churros.sh/blog/start-a-postgres-server-on-macFour realistic ways to run Postgres locally on macOS — Homebrew Services, Postgres.app, Docker, and manual pg_ctl — with the trade-offs, gotchas, and the failures that waste the most time.Tue, 05 May 2026 00:00:00 GMThttps://churros.sh/blog/subtraction-in-sql-query-postgres-guidehttps://churros.sh/blog/subtraction-in-sql-query-postgres-guideA practical Postgres guide to subtraction — numeric arithmetic, date and time math, set subtraction with EXCEPT, window-function comparisons, and the NULL and casting pitfalls that bite in production.Mon, 04 May 2026 00:00:00 GMT