Practical guides to database schema changes with Ptah.https://blog.ptah.run/https://blog.ptah.run/posts/from-atlas-to-ptah/https://blog.ptah.run/posts/from-atlas-to-ptah/Continue an Atlas migration history with Ptah, catch a changed payment-queue view, and test both CLIs without external network access.Mon, 05 Oct 2026 00:00:00 GMTpostgresmigrationsschemahttps://blog.ptah.run/posts/supabase-dev-image-grants/https://blog.ptah.run/posts/supabase-dev-image-grants/Generate migrations against a dev database built from supabase/postgres while Ptah Compat keeps the image's grants and serial sequences intact.Sun, 04 Oct 2026 10:00:00 GMTpostgresmigrationsschemaatlas drop-inhttps://blog.ptah.run/posts/ci-migrations-without-kubernetes/https://blog.ptah.run/posts/ci-migrations-without-kubernetes/Run a dispatch worker only after its migration and schema checks pass, then test drift, SQL failure, retries, and cancellation.Sun, 04 Oct 2026 00:00:00 GMTpostgresmigrationscihttps://blog.ptah.run/posts/mailcollector-sqlite-migrations-fts5/https://blog.ptah.run/posts/mailcollector-sqlite-migrations-fts5/We tested Ptah in MailCollector to turn repeated startup schema changes into recorded upgrades and add FTS5 search while preserving existing mail.Sat, 03 Oct 2026 10:32:32 GMTcase studysqlitemigrationsschemahttps://blog.ptah.run/posts/scooter-postgresql-triggers/https://blog.ptah.run/posts/scooter-postgresql-triggers/We tested Ptah Compat in Scooter's existing migration workflow, adding PostgreSQL functions and triggers to desired SQL while preserving Atlas history.Sat, 03 Oct 2026 08:36:25 GMTcase studypostgresmigrationsschemaatlas drop-inhttps://blog.ptah.run/posts/migration-linters-before-production/https://blog.ptah.run/posts/migration-linters-before-production/Reproduce lost column values, blocked writers, and a failing NOT NULL change, then compare the database results with Ptah's warnings and exit codes.Sat, 03 Oct 2026 00:00:00 GMTpostgresmigrationshttps://blog.ptah.run/posts/ptah-0-12-0/https://blog.ptah.run/posts/ptah-0-12-0/Ptah 0.12.0 reads conditional PostgreSQL role declarations. Catch up on SQL preservation, migration loading, and container updates since 0.11.0.Fri, 02 Oct 2026 18:30:00 GMTreleasespostgresmigrationshttps://blog.ptah.run/posts/zengram-embedding-generations/https://blog.ptah.run/posts/zengram-embedding-generations/We tested a small Zengram integration that builds replacement embeddings with Ptah while old search keeps serving, then coordinates the final handover.Fri, 02 Oct 2026 16:00:00 GMTcase studypostgresmigrationshttps://blog.ptah.run/posts/akashi-atlas-migration-handover/https://blog.ptah.run/posts/akashi-atlas-migration-handover/We tested Akashi's TimescaleDB migrations with Ptah Compat: the Atlas history stays readable, while an invalid concurrent index blocks migration success.Fri, 02 Oct 2026 10:00:00 GMTcase studypostgresmigrationsschemaatlas drop-inhttps://blog.ptah.run/posts/tasks-rls-desired-state/https://blog.ptah.run/posts/tasks-rls-desired-state/Atlas Community leaves PostgreSQL row-level security outside schema management. We tested Ptah Compat to manage tables, RLS policies, and grants together.Fri, 02 Oct 2026 02:00:00 GMTcase studypostgresschemamigrationsatlas drop-inhttps://blog.ptah.run/posts/erun-atlas-drop-in/https://blog.ptah.run/posts/erun-atlas-drop-in/Keep erun's Atlas commands and migration history while generating PostgreSQL triggers, RLS policies, grants, and conditional role declarations.Fri, 02 Oct 2026 00:35:22 GMTcase studypostgresmigrationsschemaatlas drop-inhttps://blog.ptah.run/posts/pgvector-search-with-ptah/https://blog.ptah.run/posts/pgvector-search-with-ptah/Use Ptah and a real local model to add vector search, catch source changes, test retrieval, and refuse a cutover whose evidence is out of date.Fri, 02 Oct 2026 00:00:00 GMTpostgresmigrationsschemahttps://blog.ptah.run/posts/doctrine-models-with-ptah/https://blog.ptah.run/posts/doctrine-models-with-ptah/Keep Doctrine entities and queries, use Ptah to review and rehearse SQL migrations, and compare the result with Doctrine's native migration workflow.Thu, 01 Oct 2026 00:00:00 GMTormmigrationspostgreshttps://blog.ptah.run/posts/hci-postgresql-desired-state/https://blog.ptah.run/posts/hci-postgresql-desired-state/We replaced HCI's split Atlas and psql schema deployment with one Ptah Compat desired state, preserving functions, triggers, and pgvector indexes.Wed, 30 Sep 2026 06:47:12 GMTcase studypostgresschemamigrationsatlas drop-inhttps://blog.ptah.run/posts/ptah-0-11-0/https://blog.ptah.run/posts/ptah-0-11-0/Plan several MySQL databases together, defer PostgreSQL constraint validation, and keep index options with Ptah 0.11.0.Wed, 30 Sep 2026 00:40:00 GMTreleasesmigrationsmysqlpostgreshttps://blog.ptah.run/posts/gorm-with-reviewed-migrations/https://blog.ptah.run/posts/gorm-with-reviewed-migrations/Move schema changes out of a Go application's startup, adopt its existing GORM database with Ptah, and deploy a reviewed change before starting the new code.Wed, 30 Sep 2026 00:00:00 GMTormmigrationspostgreshttps://blog.ptah.run/posts/sqlalchemy-models-with-ptah/https://blog.ptah.run/posts/sqlalchemy-models-with-ptah/Turn an Alembic development schema into a reviewed Ptah migration, then catch a missing database default that successful SQLAlchemy inserts can hide.Tue, 29 Sep 2026 00:00:00 GMTormmigrationspostgreshttps://blog.ptah.run/posts/atlas-ce-drop-in-replacement/https://blog.ptah.run/posts/atlas-ce-drop-in-replacement/We ran ptah-compat, an Atlas CE drop-in replacement, on wpmgr. It wrote an RLS policy migration Atlas CE skipped, and found schema.sql out of date.Mon, 28 Sep 2026 00:00:00 GMTcase studymigrationspostgresschemaatlas drop-inhttps://blog.ptah.run/posts/postgresql-in-the-playground/https://blog.ptah.run/posts/postgresql-in-the-playground/play.ptah.run now runs PostgreSQL 18.3 in your browser tab through PGlite. A new scenario queries JSONB, then plans and applies a GIN index with Ptah.Mon, 28 Sep 2026 00:00:00 GMTpostgresschemahttps://blog.ptah.run/posts/prisma-models-with-ptah/https://blog.ptah.run/posts/prisma-models-with-ptah/Keep Prisma models and its typed client, export the desired PostgreSQL schema, and use Ptah to plan, verify, and deploy a new ticket-priority field and index.Mon, 28 Sep 2026 00:00:00 GMTormmigrationspostgreshttps://blog.ptah.run/posts/ptah-0-10-0/https://blog.ptah.run/posts/ptah-0-10-0/Ptah 0.10.0 refuses a dev database that holds anything its reset would drop. This post also covers Ptah 0.9.0, which had no post of its own.Sun, 27 Sep 2026 20:30:00 GMTreleasesmigrationspostgresmysqlhttps://blog.ptah.run/posts/from-golang-migrate-to-ptah/https://blog.ptah.run/posts/from-golang-migrate-to-ptah/Import existing SQL migration pairs, keep the old history table intact, and verify a Go queue worker against the next schema change deployed by Ptah.Sun, 27 Sep 2026 00:00:00 GMTmigrationspostgreshttps://blog.ptah.run/posts/from-liquibase-to-ptah/https://blog.ptah.run/posts/from-liquibase-to-ptah/Move a PostgreSQL subscription service from a Liquibase SQL changelog to Ptah, preserving its data and checking the imported rollback before the next change.Sat, 26 Sep 2026 00:00:00 GMTmigrationspostgreshttps://blog.ptah.run/posts/ptah-0-8-1/https://blog.ptah.run/posts/ptah-0-8-1/Ptah 0.8.1 runs the generated online migration under a lock timeout, and ptah-compat now applies and lints an Atlas project on TimescaleDB.Fri, 25 Sep 2026 07:00:00 GMTreleasesmigrationspostgreshttps://blog.ptah.run/posts/from-flyway-to-ptah/https://blog.ptah.run/posts/from-flyway-to-ptah/Import a Flyway history, verify it against an existing PostgreSQL database, and let Ptah apply the next change while preserving the application's data.Fri, 25 Sep 2026 00:00:00 GMTmigrationspostgreshttps://blog.ptah.run/posts/schema-artifacts-through-harbor/https://blog.ptah.run/posts/schema-artifacts-through-harbor/Publish a schema to Harbor with Ptah, promote the same artifact, and prove that a digest-pinned Kubernetes deployment changes only when you select new content.Thu, 24 Sep 2026 00:00:00 GMTocikubernetesschemahttps://blog.ptah.run/posts/ptah-in-a-browser-tab/https://blog.ptah.run/posts/ptah-in-a-browser-tab/The real Ptah CLI in your browser tab, against SQLite. What's new: guided steps, change marks in the editor, and a layout for phones.Wed, 23 Sep 2026 18:37:00 GMTschemamigrationshttps://blog.ptah.run/posts/ptah-0-8-0/https://blog.ptah.run/posts/ptah-0-8-0/What Ptah 0.8.0 adds for changing a schema under a running application and checking afterwards what the change did, and where each part stops.Tue, 22 Sep 2026 22:41:51 GMTreleasesmigrationsschemapostgreshttps://blog.ptah.run/posts/first-schema-with-kubernetes-operator/https://blog.ptah.run/posts/first-schema-with-kubernetes-operator/Publish a shipment schema with Ptah, inspect the operator's plan, approve that exact change, and verify the database has converged.Tue, 22 Sep 2026 22:06:23 GMTkubernetesschemapostgreshttps://blog.ptah.run/posts/an-agent-that-waits-for-approval/https://blog.ptah.run/posts/an-agent-that-waits-for-approval/A screencast of Ptah Assist: a model using Ptah's own tools to propose a schema change, with every write held until it is approved.Tue, 22 Sep 2026 15:33:55 GMTschemamigrationshttps://blog.ptah.run/posts/required-currency-without-stopping-checkout/https://blog.ptah.run/posts/required-currency-without-stopping-checkout/Use Ptah to make order currency required while old and new checkout writers run, with a measured PostgreSQL workload and bounded lock waits.Mon, 21 Sep 2026 22:14:41 GMTpostgresmigrationshttps://blog.ptah.run/posts/same-migrations-different-schemas/https://blog.ptah.run/posts/same-migrations-different-schemas/Detect schema drift with Ptah and adopt a production hotfix into Git while preserving the existing PostgreSQL index.Mon, 21 Sep 2026 00:00:00 GMTpostgresmigrationsschema