The ArmorDB Blog
PostgreSQL guides for builders who ship.
Practical deep dives on managed PostgreSQL, database security, cloud pricing, PgBouncer, and the operational choices that help products rank, scale, and stay reliable.
PostgreSQL Backup Methods Compared: Dumps, Base Backups, WAL, and Snapshots
Compare PostgreSQL backup methods by restore goal, recovery window, operational cost, and managed database fit before choosing a production policy.
Fix PostgreSQL invalid input syntax for type uuid
Learn why PostgreSQL raises invalid input syntax for type uuid, how to find the malformed value, and how to fix application validation without weakening your schema.
PostgreSQL Slow Query Observability: A Practical Deep Dive
Learn how to investigate slow PostgreSQL queries with pg_stat_statements, EXPLAIN, logging, statistics views, and a repeatable production workflow.
PostgreSQL 18 Parallel GIN Index Builds: What Changes for JSONB and Search
PostgreSQL 18 can build GIN indexes in parallel, which changes how teams should plan large JSONB, array, and full-text index migrations.
PostgreSQL schema migration tools comparison for production teams
Compare migration tools and workflows for PostgreSQL applications, including SQL-first, ORM-driven, declarative, and managed change-control approaches.
Fix PostgreSQL FATAL: database does not exist
Learn why PostgreSQL reports FATAL: database does not exist, how to identify the requested database name, and when to create, restore, or correct it.
PostgreSQL 18 ANALYZE VERBOSE: Better Maintenance Observability
PostgreSQL 18 adds WAL, CPU, and read detail to ANALYZE VERBOSE, giving production teams a clearer view of table statistics maintenance.
PostgreSQL Storage Autoscaling vs Fixed Capacity
A practical comparison of PostgreSQL storage autoscaling, fixed capacity, monitoring signals, and upgrade decisions for managed database teams.
Fix PostgreSQL FATAL: role does not exist
Learn why PostgreSQL reports FATAL: role does not exist, how to confirm the connection user, and the safest ways to fix app and migration credentials.
PostgreSQL Read Replicas for Application Scaling
A practical guide to using PostgreSQL read replicas safely: what they solve, where lag breaks correctness, and how to route production traffic.
PostgreSQL 18 COPY REJECT_LIMIT: Safer Bulk Imports
PostgreSQL 18 adds REJECT_LIMIT for COPY FROM with ON_ERROR ignore, giving bulk imports a safer boundary between useful cleanup and silent data loss.
PostgreSQL Index Types Compared: B-tree, GIN, GiST, BRIN, and Hash
Compare PostgreSQL index types by workload, query pattern, maintenance cost, and production fit so you can choose the right index before adding another expensive structure.
How to Fix PostgreSQL Duplicate Key Value Violates Unique Constraint
Learn what PostgreSQL SQLSTATE 23505 means, how to find the conflicting unique constraint, and how to fix duplicate key errors without hiding real data bugs.
PostgreSQL 18 I/O Observability: What the New pg_stat_io Metrics Change
PostgreSQL 18 adds byte-level pg_stat_io metrics and WAL I/O visibility. Learn what changed, how to read the new counters, and what managed PostgreSQL teams should monitor after upgrading.
Serverless vs Provisioned PostgreSQL: How to Choose for Production
Compare serverless and provisioned PostgreSQL for latency, cost, pooling, operations, and production readiness before you choose a managed database architecture.
Fix PostgreSQL Canceling Statement Due to Conflict With Recovery
Learn why standby queries can be canceled by PostgreSQL recovery conflicts, how to diagnose the cause, and what to change safely in managed PostgreSQL.
PostgreSQL Autovacuum and Bloat in Managed Databases: A Practical Guide
Learn how PostgreSQL autovacuum controls dead rows and table bloat, which signals to watch, and how managed PostgreSQL teams can prevent maintenance surprises.
PostgreSQL 18 MD5 Password Deprecation: How to Move to SCRAM
PostgreSQL 18 deprecates MD5-encrypted passwords; here is how to audit roles, move to SCRAM-SHA-256, and avoid surprise login failures.
PostgreSQL Encryption Options Compared: TLS, Disk, and Field-Level Controls
Compare PostgreSQL encryption in transit, encryption at rest, pgcrypto, and application-level encryption so you can choose the right control for each risk.
How to Fix PostgreSQL Permission Denied for Schema Public
Learn why PostgreSQL returns permission denied for schema public, how to grant the right schema and table privileges, and how to avoid insecure blanket grants.
PostgreSQL 18 Logical Replication for Generated Columns: What Changed
PostgreSQL 18 can publish stored generated columns through logical replication; here is what managed PostgreSQL teams should test before using it in migrations or integrations.
PostgreSQL sslmode Values Compared: Which One Should You Use?
Compare PostgreSQL sslmode settings, certificate validation behavior, and practical production choices for managed and self-hosted databases.
Fix PostgreSQL Current Transaction Is Aborted Errors
Learn why PostgreSQL ignores commands after one failed statement in a transaction, how to recover safely, and how to prevent SQLSTATE 25P02 in application code.
PostgreSQL Replication Lag in Managed Databases: A Practical Guide
Learn how PostgreSQL replication lag happens, how to read the right metrics, and how to design safer read routing, alerts, and failover runbooks for managed databases.
PostgreSQL 18 OLD and NEW RETURNING: Cleaner Change Capture in SQL
PostgreSQL 18 lets INSERT, UPDATE, DELETE, and MERGE return OLD and NEW row values directly. Learn what changed, where it helps, and how to use it safely.
PostgreSQL SaaS Tenancy Models: Shared Tables, Schemas, or Databases?
Compare shared-table, schema-per-tenant, and database-per-tenant PostgreSQL designs for SaaS apps, including isolation, migrations, pooling, backups, and when to switch models.
Fix PostgreSQL Idle in Transaction Sessions Before They Hurt Production
Learn how to find PostgreSQL idle in transaction sessions, recover safely, set guardrails, and fix the application patterns that leave transactions open.
PostgreSQL 18 pg_upgrade Statistics: Safer Major Upgrades
PostgreSQL 18 lets pg_upgrade retain most optimizer statistics. Learn what changes, what still needs ANALYZE, and how to update a production upgrade runbook.
PostgreSQL Isolation Levels Compared for SaaS Applications
Compare PostgreSQL Read Committed, Repeatable Read, and Serializable isolation for production SaaS workloads, including retries, locks, and when each level fits.
Fix PostgreSQL Statement Timeout Without Hiding Slow Queries
Learn why PostgreSQL raises statement timeout errors, how to set safer timeout scopes, and how to decide whether the real fix is query tuning, indexing, or request budgeting.
PostgreSQL Connection Pool Sizing: A Practical Guide for Web Apps
Learn how to size PostgreSQL application pools and PgBouncer budgets without exhausting connections or hiding database bottlenecks.
PostgreSQL 18 Temporal Constraints: What WITHOUT OVERLAPS and PERIOD Change
PostgreSQL 18 adds temporal primary keys, unique constraints, and foreign keys. Here is what changed, when to use them, and what to test before production.
PostgreSQL Authentication Methods Compared: SCRAM, MD5, TLS, and Client Certificates
A practical comparison of PostgreSQL authentication methods for production apps, including SCRAM, legacy MD5, TLS verification, client certificates, and role design.
How to Fix PostgreSQL Lock Timeout Errors Safely
A practical quick fix for PostgreSQL lock timeout errors: how to find blockers, recover safely, tune timeouts, and prevent repeat incidents.
PostgreSQL 18 Virtual Generated Columns: What Changed and When to Use Them
PostgreSQL 18 makes virtual generated columns the default. Learn how virtual and stored generated columns differ, what to test, and how to write safer migrations.
PostgreSQL High Availability: Failover, Replication, and Backups Compared
A practical comparison of PostgreSQL high-availability building blocks, from streaming replicas and failover to PITR backups and logical replication.
Fix PostgreSQL: Remaining Connection Slots Are Reserved
A practical quick fix for PostgreSQL's reserved connection slot error, including what to check, how to recover safely, and when to add pooling.
PostgreSQL WAL Archiving and PITR: A Practical Managed Database Guide
A deep dive into PostgreSQL WAL archiving, point-in-time recovery, checkpoints, and the backup questions managed PostgreSQL users should ask before production incidents.
PostgreSQL 18 Skip Scan: What It Changes for Multicolumn Indexes
PostgreSQL 18 can use skip scan lookups on multicolumn B-tree indexes in more cases. Here is what to test before changing production indexes.
PostgreSQL Extensions for SaaS: Which Ones Belong in Your First Stack?
A practical comparison of PostgreSQL extensions for SaaS teams, including observability, search, case-insensitive text, vector search, and geospatial workloads.
How to Fix PostgreSQL `deadlock detected` Errors (SQLSTATE 40P01)
A practical guide to diagnosing PostgreSQL deadlock detected errors, reducing lock cycles, and deciding when a transaction retry is safe.
PostgreSQL 18 Asynchronous I/O: What It Changes for Managed Databases
PostgreSQL 18 adds asynchronous I/O for scans and vacuum work. Here is what the change means, when it helps, and how managed PostgreSQL teams should evaluate it.
PostgreSQL Partitioning vs Indexing vs Read Replicas: Which Scaling Move Fits?
A practical comparison of PostgreSQL partitioning, indexing, and read replicas for teams deciding how to scale reads, writes, maintenance, and cost.
How to Fix PostgreSQL Serialization Failure Retry Errors
Learn why PostgreSQL raises serialization failure errors, when to retry transactions, and how to make retries safe with managed PostgreSQL and connection pooling.
PostgreSQL Row-Level Security for SaaS Tenancy: A Practical Deep Dive
A practical guide to using PostgreSQL row-level security for multi-tenant SaaS applications, including policy design, connection pooling, migrations, and failure modes.
PostgreSQL 19 Beta 1: What Managed PostgreSQL Teams Should Test Now
PostgreSQL 19 Beta 1 previews changes in maintenance, replication, security, and observability that managed PostgreSQL teams should evaluate before the final release.
PostgreSQL JSONB vs Relational Tables: How to Choose the Right Schema
A practical comparison of PostgreSQL JSONB, relational columns, and hybrid schemas for SaaS teams deciding what to model, index, and constrain.
How to Fix PostgreSQL `no pg_hba.conf entry for host` Errors
A practical guide to diagnosing PostgreSQL pg_hba.conf host, user, database, address, and SSL mismatches without weakening database access rules.
PostgreSQL 18 Enables Data Checksums by Default: What Changes in Production
PostgreSQL 18 enables data checksums by default for new clusters. Here is what that means for corruption detection, upgrades, managed PostgreSQL, and rollout planning.
Managed PostgreSQL Pricing: What to Compare Before You Choose
A practical comparison guide to managed PostgreSQL pricing, including compute, storage, backups, high availability, networking, and operational costs.
How to Fix PostgreSQL `relation does not exist` Errors
A practical quick-fix guide for PostgreSQL undefined-table errors caused by search_path drift, schema-qualified names, migrations, and case-sensitive identifiers.
How to Fix PgBouncer Prepared Statement Errors in PostgreSQL
A practical quick-fix guide for PostgreSQL errors like `prepared statement does not exist` when applications use PgBouncer transaction pooling.
PostgreSQL Autovacuum Tuning for High-Write Workloads
A deep practical guide to tuning PostgreSQL autovacuum so busy tables stay healthy, bloat stays under control, and emergency VACUUM FULL stops being the default reaction.
PostgreSQL 18 Adds OAuth 2.0 Authentication for Database Logins
Why PostgreSQL 18’s new OAuth 2.0 authentication path matters for managed PostgreSQL teams that want less password sprawl and a cleaner service identity story.
PostgreSQL Migration Strategies: pg_dump vs Logical Replication vs pg_upgrade
A practical comparison of the three PostgreSQL migration patterns that matter most, with guidance on downtime, cutover risk, and when each approach fits managed PostgreSQL.
How to Fix PostgreSQL `password authentication failed for user` Errors
A practical quick-fix guide for PostgreSQL login failures caused by wrong secrets, broken connection URLs, old clients, and pooler mismatches.
PostgreSQL 18’s uuidv7() Makes Time-Ordered UUIDs a Better Default
Why PostgreSQL 18’s new uuidv7() function matters for primary keys, B-tree locality, and managed PostgreSQL rollout decisions.
PgBouncer Pooling Modes: Session, Transaction, and Statement
A practical comparison of PgBouncer pooling modes, what each one preserves, and which mode fits most managed PostgreSQL workloads.
How to Fix PostgreSQL `too many clients already` Errors
A short fix guide for connection-limit errors, idle sessions, and when to add PgBouncer instead of raising max_connections.
Managed PostgreSQL vs Self-Hosted PostgreSQL: Which Should You Choose?
A practical SEO guide comparing managed PostgreSQL and self-hosted PostgreSQL across cost, control, security, backups, and migration tradeoffs.
How to Fix SSLmode Errors in a PostgreSQL Connection String
A fast fix guide for PostgreSQL SSLmode mistakes, certificate mismatches, and connection string errors that break app startup.
PostgreSQL 18: What the New Release Means for Managed PostgreSQL Teams
A current release-driven guide on what PostgreSQL 18 changes for managed PostgreSQL planning, compatibility, and upgrade strategy.
PostgreSQL 17: Performance Gains and New Features
Deep dive into why we chose Postgres 17 as our default and how it impacts your application performance.
The Zero Cloud Tax Philosophy
Why we believe managed databases shouldn't cost a fortune and how we optimize for efficiency.
Securing PostgreSQL with Mutual TLS
A technical guide on how ArmorDB enforces mTLS for all connections and why it matters for your data security.
PgBouncer and PostgreSQL Connection Pooling
Learn why PostgreSQL connection pooling matters, how PgBouncer helps production apps, and when teams should tune pool sizes before scaling the database.
PostgreSQL Backups and Restore Strategy
A practical guide to PostgreSQL backups, restore testing, retention, and why a backup only matters when recovery is predictable.
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