AI for Postgres
Tune, debug, and design PostgreSQL with AI — slow queries and EXPLAIN plans, indexing, vacuum/bloat, replication, and safe schema migrations.
42 copy-paste prompts · 68 in-depth guides Jump to prompts Jump to guides
Prompts
- Advanced
Postgres auto_explain Plan Regression Detection Prompt
Set up auto_explain to catch the query whose plan flipped in production — capturing the bad plan with timing and buffers only when it matters — then diagnose why the planner chose it, without logging every fast query.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres BRIN Index Design for Time-Series Tables Prompt
Decide whether a BRIN index will actually speed up your large, naturally-ordered table — and size pages_per_range correctly — instead of blindly reaching for a B-tree that bloats storage on append-only data.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres postgres_fdw Federation Design Prompt
Design a postgres_fdw setup that actually pushes down joins, filters, and aggregates to the remote server — instead of dragging whole tables across the network — and get the security and failure modes right.
- Claude
- ChatGPT
- Cursor
Open prompt - Intermediate
Postgres Keyset (Cursor) Pagination Optimization Prompt
Convert a slow OFFSET/LIMIT pagination query into stable keyset (seek) pagination that stays fast on deep pages — with a matching index and a correct tuple-comparison predicate, not a broken one-column WHERE.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Parallel Query Worker Tuning Prompt
Work out why a big analytical query isn't going parallel — or is spawning too many workers and starving everything else — and set the parallel GUCs from evidence in the plan instead of copy-pasted blog values.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres pgAudit Audit Logging Setup Prompt
Configure pgAudit for compliance-grade logging that captures the statements auditors need without drowning the disk or leaking secrets — scoped by role and object instead of logging every SELECT on the whole database.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Read-Replica Load Balancing Design Prompt
Design read/write query routing across streaming replicas that respects replication lag and read-your-writes consistency — so you scale reads without serving stale data to the user who just wrote it.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres md5-to-SCRAM Password Migration Prompt
Migrate a Postgres instance from legacy md5 password auth to scram-sha-256 without locking out clients — sequencing password_encryption, per-user re-hashing, driver compatibility, and pg_hba.conf so no role is stranded.
- Claude
- ChatGPT
- Cursor
Open prompt - Intermediate
Postgres Memory Sizing (shared_buffers & work_mem) Prompt
Size shared_buffers, work_mem, maintenance_work_mem and effective_cache_size from your actual RAM, connection count, and cache-hit evidence — not the '25% of RAM' rule of thumb that quietly causes OOM or disk spills.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres HOT Update and Fillfactor Tuning Prompt
Diagnose why an update-heavy table bloats and burns write I/O despite autovacuum, then decide on fillfactor, index removal, and column changes to unlock Heap-Only Tuple (HOT) updates — cutting index write amplification and bloat at the source.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Index Bloat and REINDEX CONCURRENTLY Strategy Prompt
Turn raw index-bloat and usage stats into a ranked, safe REINDEX/DROP plan — so you reclaim space and restore performance without taking an outage or dropping an index something silently depends on.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Prepared Statement Generic vs Custom Plan Tuning Prompt
Diagnose why a parameterized/prepared query flipped to a bad generic plan after the sixth execution — and decide between plan_cache_mode, query rewrites, or letting Postgres re-plan — so latency stops spiking under skewed parameters.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Idle-in-Transaction Session Remediation Prompt
Track down long 'idle in transaction' sessions that hold locks and pin the xmin horizon so autovacuum can't reclaim dead tuples, then decide what to terminate, what to fix in the app, and which timeouts to set — before bloat and lock waits cascade into an outage.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Materialized View Refresh Strategy Prompt
Design a safe refresh strategy for Postgres materialized views — choosing between plain and CONCURRENTLY refresh, scheduling cadence, staleness tolerance, and the unique index CONCURRENTLY requires — so dashboards stay fast without long ACCESS EXCLUSIVE locks or runaway bloat on the matview.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Temp File Spill & work_mem Tuning Prompt
Diagnose why queries spill sorts, hashes, and aggregates to temp files on disk, then right-size work_mem per-query and per-role instead of globally — so slow queries stop thrashing disk without blowing up total memory under concurrency.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Checkpoint & WAL Throughput Tuning Prompt
Smooth out checkpoint-driven I/O spikes and write stalls by tuning checkpoint, WAL, and full-page-write settings for the workload — without risking longer crash recovery than the RTO allows.
- Claude
- ChatGPT
Open prompt - Advanced
Postgres Disk-Full & pg_wal Growth Emergency Triage Prompt
Work through a Postgres disk-full or runaway pg_wal/pg_xlog incident under pressure — find what is consuming space, free it safely, and recover the instance without deleting WAL Postgres still needs.
- Claude
- ChatGPT
Open prompt - Advanced
Postgres Integer Primary-Key / Sequence Exhaustion Remediation Prompt
Plan the migration of an int4 (serial) primary key approaching its 2.1-billion ceiling to bigint, with a low-downtime backfill and a tested cutover before INSERTs start failing.
- Claude
- ChatGPT
Open prompt - Advanced
Postgres on Kubernetes Operator Troubleshooting Prompt
Diagnose a Postgres cluster managed by a Kubernetes operator (CloudNativePG, Crunchy PGO, Zalando) — stuck failovers, pods CrashLooping, PVC/storage issues, and split-brain risk — using operator status and pod logs.
- Claude
- ChatGPT
Open prompt - Intermediate
Postgres pg_dump / pg_restore & Bulk Load Tuning Prompt
Speed up a slow logical dump/restore or large data load by tuning pg_dump/pg_restore parallelism and the session-level settings (maintenance_work_mem, WAL, indexes, constraints) without compromising durability of the live system.
- Claude
- ChatGPT
Open prompt - Intermediate
Postgres pg_hba.conf Authentication & TLS Hardening Prompt
Review and harden Postgres client authentication — pg_hba.conf rules, auth methods (scram vs md5 vs trust), and TLS configuration — to close access gaps without locking out legitimate apps or replicas.
- Claude
- ChatGPT
Open prompt - Advanced
Postgres Planner Mis-Estimation & Extended Statistics Prompt
Fix bad query plans caused by wrong row estimates — correlated columns, skewed distributions, or stale stats — using ANALYZE, statistics targets, and CREATE STATISTICS rather than blunt planner hacks.
- Claude
- ChatGPT
Open prompt - Intermediate
Postgres Statement Timeout & Runaway Query Governance Prompt
Set up guardrails against runaway and stuck queries — statement_timeout, idle_in_transaction_session_timeout, lock_timeout, and a safe termination playbook — scoped per role so analytics and OLTP get the right limits.
- Claude
- ChatGPT
Open prompt - Advanced
Postgres TOAST & Large-Value Storage Tuning Prompt
Diagnose performance and bloat problems caused by large column values (text, JSONB, bytea) and tune TOAST storage strategy, compression, and column layout to cut I/O and detoasting overhead.
- Claude
- ChatGPT
Open prompt - Intermediate
Postgres Full-Text Search Design Prompt
Turn a fuzzy search requirement into a concrete Postgres full-text design — tsvector storage, the right index, a text search configuration, and a ranked query — so search is fast, relevant, and maintainable instead of a pile of ILIKE scans.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
PostgreSQL HA Automatic Failover Design Prompt
Produces a reviewed high-availability architecture for automatic PostgreSQL failover using Patroni or repmgr, covering quorum/DCS topology, replication mode, fencing, traffic routing, and a concrete failover test plan.
- Claude
- ChatGPT
- Cursor
Open prompt - Intermediate
Postgres Index Type Selector Prompt
Pick the right index access method — B-tree, BRIN, GIN, GiST, Hash, or SP-GiST — for a specific column and query pattern, reasoning from cardinality, data distribution, and the operators your queries actually use.
- Claude
- ChatGPT
- Cursor
Open prompt - Intermediate
Postgres JSONB Schema Design Review Prompt
Review or design a JSONB column — deciding JSONB vs normalized columns, choosing the GIN opclass (jsonb_path_ops vs default), shaping containment and path queries, and avoiding TOAST and bloat — for a table that mixes structured and semi-structured data.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Logical Replication and CDC Setup Prompt
Design a complete logical replication / Change Data Capture pipeline — publications, subscriptions, replication slots, initial sync strategy, conflict handling, and slot-bloat monitoring — for streaming Postgres changes to a downstream system.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Major Version Upgrade Planner Prompt
Turn a 'we need to upgrade Postgres' ask into a concrete, sequenced upgrade plan — pg_upgrade vs logical-replication cutover, pre-checks, extension compatibility, a rollback, and post-upgrade statistics — so the upgrade lands with known downtime instead of a surprise outage.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres PITR WAL Backup Strategy Prompt
Turn an RPO/RTO target into a concrete WAL-archiving and Point-In-Time-Recovery design — base backups, archive command, retention, and a tested restore runbook — so you can recover to any moment instead of hoping a nightly dump is enough.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
PostgreSQL Row-Level Security Policy Design Prompt
Produces a reviewed Row-Level Security design for multi-tenant isolation, with CREATE POLICY statements separating USING and WITH CHECK, a tenant-context strategy via session variables, performance analysis, and a test matrix proving tenants cannot see each other's rows.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
PostgreSQL XID Wraparound Prevention Prompt
Produces a prioritized diagnosis and remediation plan for transaction ID and multixact wraparound risk, reading datfrozenxid/relfrozenxid ages, tuning freeze settings, and staging emergency aggressive vacuums before the cluster is forced read-only.
- Claude
- ChatGPT
- Cursor
Open prompt - Intermediate
Postgres postgresql.conf Workload Tuning Prompt
Get a reviewed postgresql.conf tuning plan for your specific hardware and workload — memory, WAL/checkpoint, planner, and autovacuum settings explained one by one, with how to verify each took effect.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Declarative Partitioning Design Prompt
Design a declarative partitioning scheme for a large table — pick the strategy and key, plan indexes and constraints, and lay out a safe migration from the existing monolith with automated partition maintenance.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Index Advisor from pg_stat_statements Prompt
Mine pg_stat_statements for your most expensive queries and get a prioritized list of missing indexes to add and redundant indexes to drop — with the write cost of each spelled out.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Lock Contention & Deadlock Investigation Prompt
Untangle blocking chains and deadlocks from pg_locks, pg_stat_activity, and log output — pinpoint the blocker, explain the lock conflict, and fix the access pattern so it stops recurring.
- Claude
- ChatGPT
- Cursor
Open prompt - Intermediate
Postgres pgbouncer Pool Sizing & Connection Tuning Prompt
Size pgbouncer pools and pick a pooling mode for your app's connection behavior — so you stop exhausting max_connections, cut connection overhead, and avoid the subtle bugs transaction pooling introduces.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Replication Lag Debugging Prompt
Diagnose streaming or logical replication lag from pg_stat_replication and pg_replication_slots — find where the bytes are stuck (send, write, flush, replay) and fix the cause without losing WAL or risking the primary.
- Claude
- ChatGPT
- Cursor
Open prompt - Intermediate
Postgres Slow Query EXPLAIN Triage Prompt
Turn a confusing EXPLAIN (ANALYZE, BUFFERS) plan into a ranked, plain-English diagnosis with concrete index/rewrite fixes and a verification step — so you fix the real bottleneck, not a guess.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres VACUUM, Bloat & Autovacuum Tuning Prompt
Diagnose table and index bloat, decide between VACUUM, autovacuum tuning, and a rebuild, and produce per-table autovacuum settings — so dead tuples and wraparound risk stop quietly degrading your database.
- Claude
- ChatGPT
- Cursor
Open prompt - Advanced
Postgres Zero-Downtime Schema Migration Planner Prompt
Turn a risky schema change into a lock-aware, multi-step migration plan that avoids long ACCESS EXCLUSIVE locks — with the exact statements, lock_timeout guards, and a back-out path for each phase.
- Claude
- ChatGPT
- Cursor
Open prompt
Guides
- · 9 min read
Postgres 'duplicate key value violates unique constraint': Causes and Fix
Fix Postgres duplicate key value violates unique constraint — dedupe rows, upsert with ON CONFLICT, and reseed the serial sequence with setval.
Read guide - · 9 min read
PostgreSQL Error Guide: 'duplicate key value violates unique constraint' Unique Index Conflicts
Fix PostgreSQL 'duplicate key value violates unique constraint': diagnose race conditions, out-of-sync sequences, and resolve with UPSERT and ON CONFLICT.
Read guide - · 8 min read
Postgres Error: 'database "..." does not exist' — Cause, Fix, and Troubleshooting Guide
Fix Postgres FATAL: database "appdb" does not exist — wrong dbname, dropped DB, wrong port or cluster, CREATE DATABASE, fix your DSN.
Read guide - · 9 min read
Postgres Error: 'cannot drop ... because other objects depend on it' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'cannot drop because other objects depend on it': read the DETAIL, query pg_depend, drop dependents, or use CASCADE safely.
Read guide - · 9 min read
Postgres Error: 'could not serialize access due to concurrent update' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'could not serialize access due to concurrent update' (SQLSTATE 40001): retry on serialization failure, keep transactions short.
Read guide - · 8 min read
Postgres Error: 'current transaction is aborted, commands ignored until end of transaction block' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'current transaction is aborted, commands ignored until end of transaction block': find the first failed statement, ROLLBACK, use SAVEPOINT.
Read guide - · 8 min read
Postgres Error: 'division by zero' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'division by zero': guard denominators with NULLIF, CASE, or COALESCE, and filter zero rows for both / and % operators.
Read guide - · 9 min read
Postgres Error: 'insert or update on table violates foreign key constraint' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'insert or update on table violates foreign key constraint': the referenced parent row is missing. Insert the parent first or fix the key.
Read guide - · 9 min read
Postgres Error: 'invalid byte sequence for encoding' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'invalid byte sequence for encoding UTF8': client_encoding mismatch, NUL 0x00 bytes, iconv transcode, COPY ENCODING option.
Read guide - · 8 min read
Postgres Error: 'more than one row returned by a subquery used as an expression' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'more than one row returned by a subquery used as an expression': scalar subqueries, non-unique keys, LIMIT 1, IN, aggregates.
Read guide - · 8 min read
Postgres Error: 'must appear in the GROUP BY clause or be used in an aggregate function' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'must appear in the GROUP BY clause or be used in an aggregate function': group the column, aggregate it, or use DISTINCT ON.
Read guide - · 8 min read
Postgres Error: 'no pg_hba.conf entry for host' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'no pg_hba.conf entry for host': add a host/hostssl CIDR rule with scram-sha-256, open listen_addresses, then reload.
Read guide - · 9 min read
Postgres Error: 'operator does not exist' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'operator does not exist: integer = text': mismatched types, dropped implicit casts, enum/JSON operators. Add explicit casts to resolve.
Read guide - · 9 min read
Postgres Error: 'remaining connection slots are reserved' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'remaining connection slots are reserved for non-replication superuser connections': max_connections, reserved slots, pooling.
Read guide - · 8 min read
Postgres Error: 'syntax error at or near' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'syntax error at or near': read the LINE/caret pointer, add missing commas, quote reserved identifiers, fix driver placeholders.
Read guide - · 8 min read
Postgres Error: 'there is already a transaction in progress' — Cause, Fix, and Troubleshooting Guide
Understand Postgres WARNING there is already a transaction in progress — a nested BEGIN inside an open transaction, ORM conflicts, and fixes.
Read guide - · 8 min read
Postgres Error: 'type "..." does not exist' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'type "citext" does not exist': CREATE EXTENSION, search_path, schema-qualify the type, create enums before use.
Read guide - · 9 min read
Postgres Error: 'update or delete on table violates foreign key constraint' — Cause, Fix, and Troubleshooting Guide
Fix Postgres 'update or delete on table violates foreign key constraint': the parent row is still referenced by children. Repoint, cascade, or reorder.
Read guide - · 8 min read
PostgreSQL Error Guide: 'the database system is starting up' — Fix
Fix 'the database system is starting up' in Postgres: understand crash recovery, WAL replay, standby startup, and slow restarts, with real diagnostics to tell a normal wait from a stuck server.
Read guide - · 9 min read
PostgreSQL Error Guide: 'integer out of range' — Fix and Prevent
Fix 'integer out of range' in Postgres: handle sequence/id exhaustion, arithmetic overflow, and oversized literals by widening int to bigint safely, with real diagnostic SQL and migration steps.
Read guide - · 8 min read
PostgreSQL Error Guide: 'invalid input syntax for type integer' — Fix
Fix 'invalid input syntax for type integer' in Postgres: track down empty strings, non-numeric text, wrong column casts, and mismatched parameter types feeding an integer column, with real SQL.
Read guide - · 8 min read
PostgreSQL Error Guide: 'null value in column violates not-null constraint' — Fix
Fix 'null value in column violates not-null constraint' in Postgres: find the missing insert value, wrong default, failed trigger, or ALTER TABLE that hits legacy NULL rows, and prevent it.
Read guide - · 9 min read
PostgreSQL Error Guide: 'out of memory' — Diagnose and Fix
Fix Postgres 'out of memory' errors: trace work_mem blowups, high connection counts, huge hash/sort operations, and OOM killer kills, then right-size memory settings with real diagnostic SQL.
Read guide - · 8 min read
PostgreSQL Error Guide: 'role "name" does not exist' — Fix
Fix 'role does not exist' in Postgres: resolve missing login roles, wrong OS user mapping, dropped roles owning objects, and restore/failover gaps, with real psql diagnostics and safe fixes.
Read guide - · 8 min read
PostgreSQL Error Guide: 'terminating connection due to administrator command' — Fix
Fix 'terminating connection due to administrator command' in Postgres: identify pg_terminate_backend calls, restarts, failovers, and idle-session reapers killing your session, with real diagnostics.
Read guide - · 8 min read
PostgreSQL Error Guide: 'value too long for type character varying(n)' — Fix
Fix 'value too long for type character varying(n)' in Postgres: find the oversized string, decide between widening the column or truncating input, and handle multibyte length gotchas, with real SQL.
Read guide - · 9 min read
PostgreSQL Error Guide: 'violates foreign key constraint' — Fix
Fix 'insert or update violates foreign key constraint' in Postgres: resolve missing parent rows, wrong insert order, bad delete/update cascade behavior, and orphaned data, with real diagnostic SQL.
Read guide - · 9 min read
PostgreSQL Error Guide: 'column "x" does not exist' — Fix Aliases, Quoting, and Search Path
Fix Postgres 'column does not exist': resolve case-folding and double-quote issues, wrong table aliases, missing search_path, GROUP BY/HAVING scope, and stale schema after migrations.
Read guide - · 9 min read
PostgreSQL Error Guide: 'there is no unique constraint matching given keys' — Fix Foreign Keys
Fix Postgres 'there is no unique constraint matching given keys for referenced table': add the missing UNIQUE/PRIMARY KEY on the parent, match column sets exactly, and handle partitioned tables.
Read guide - · 9 min read
PostgreSQL Error Guide: 'prepared statement "S_1" already exists' — Fix Pooler Conflicts
Fix Postgres 'prepared statement already exists': the classic PgBouncer transaction-pooling clash with server-side prepared statements. Switch pool mode, disable prepares, or run PgBouncer 1.21+.
Read guide - · 9 min read
PostgreSQL Error Guide: 'cannot execute INSERT in a read-only transaction' — Fix Read-Only Writes
Fix PostgreSQL 'cannot execute INSERT in a read-only transaction'. Diagnose a hot standby replica, default_transaction_read_only, or a mis-routed write.
Read guide - · 9 min read
PostgreSQL Error Guide: 'could not resize shared memory segment' — Fix /dev/shm Exhaustion
Fix PostgreSQL 'could not resize shared memory segment' when parallel query DSM fails on a too-small /dev/shm. Diagnose with df, then size /dev/shm.
Read guide - · 9 min read
PostgreSQL Error Guide: 'index row size exceeds btree maximum' — Fix Oversized B-tree Keys
Fix PostgreSQL 'index row size exceeds btree maximum 2704'. Learn why long text columns break B-tree limits, and use hash expression indexes or GIN instead.
Read guide - · 9 min read
PostgreSQL Error Guide: 'canceling statement due to conflict with recovery' Standby Query Conflicts
Fix PostgreSQL 'canceling statement due to conflict with recovery' on hot standbys: tune max_standby_delay, hot_standby_feedback, and long replica queries.
Read guide - · 9 min read
PostgreSQL Error Guide: 'canceling statement due to lock timeout' Lock Acquisition Failures
Fix PostgreSQL 'canceling statement due to lock timeout': diagnose blocking sessions, long transactions, and tune lock_timeout to avoid stuck queries.
Read guide - · 9 min read
PostgreSQL Error Guide: 'could not serialize access due to concurrent update' Serialization Failures
Fix PostgreSQL 'could not serialize access due to concurrent update': understand REPEATABLE READ/SERIALIZABLE conflicts and add transaction retry logic.
Read guide - · 9 min read
PostgreSQL Error Guide: 'invalid page in block' Data Corruption Recovery
Fix PostgreSQL 'invalid page in block': diagnose page-level corruption, identify the affected relation, and recover with checksums and backups safely.
Read guide - · 9 min read
PostgreSQL Error Guide: 'out of shared memory' Lock Table Exhaustion
Fix PostgreSQL 'out of shared memory': diagnose max_locks_per_transaction exhaustion from many partitions and tables, and tune the lock table safely.
Read guide - · 9 min read
Postgres 'permission denied for table': Fix GRANTs, Schema USAGE, and Roles
Fix PostgreSQL 'permission denied for table': diagnose missing GRANTs, schema USAGE, role membership, and default privileges for new tables.
Read guide - · 9 min read
PostgreSQL Error Guide: 'SSL connection has been closed unexpectedly' TLS Disconnects
Fix PostgreSQL 'SSL connection has been closed unexpectedly': diagnose idle timeouts, server crashes, OOM kills, and network resets behind TLS disconnects.
Read guide - · 9 min read
PostgreSQL Error Guide: 'too many connections for role' Per-Role Connection Limits
Fix PostgreSQL 'too many connections for role': diagnose CONNECTION LIMIT settings, leaked connections, and pooling to stay under per-role caps.
Read guide - · 11 min read
Building Full-Text Search in Postgres With AI
Build production full-text search in Postgres using tsvector, GIN indexes, ts_rank, and pg_trgm fuzzy matching, with AI to draft and review the schema.
Read guide - · 11 min read
Change Data Capture From Postgres With Logical Replication and AI
Build CDC from Postgres with logical replication: publications, slots, pgoutput and wal2json, Debezium to Kafka, and the slot bloat traps to monitor.
Read guide - · 10 min read
Designing JSONB Columns in Postgres With AI
Design JSONB columns that stay fast: JSONB vs normalized vs hybrid, GIN with jsonb_path_ops, containment queries, generated columns, and avoiding bloat.
Read guide - · 11 min read
Essential Postgres Extensions: pg_stat_statements, pg_repack, TimescaleDB With AI
A field guide to three Postgres extensions that earn their keep: query observability, lock-free bloat removal, and time-series, with AI reading your output.
Read guide - · 11 min read
Multi-Tenant Isolation With Postgres Row-Level Security and AI
Enforce multi-tenant data isolation in Postgres with row-level security policies, tenant context, FORCE RLS, and pooling-safe resets, validated with AI help.
Read guide - · 9 min read
PostgreSQL Error Guide: 'Connection refused' Cannot Connect to Server
Fix PostgreSQL 'could not connect to server: Connection refused': diagnose a stopped server, listen_addresses binding, wrong port, firewalls, localhost-only sockets, and SELinux.
Read guide - · 9 min read
PostgreSQL Error Guide: 'remaining connection slots are reserved for non-replication superuser connections'
Fix PostgreSQL's connection slot exhaustion: diagnose max_connections, reserved slots, connection leaks, idle-in-transaction sessions and missing pooling with pg_stat_activity.
Read guide - · 10 min read
PostgreSQL Error Guide: 'deadlock detected' Transaction Lock Cycles
Fix the PostgreSQL 'deadlock detected' error: diagnose inconsistent lock ordering, long-running transactions, foreign key contention, and add retry logic.
Read guide - · 11 min read
PostgreSQL Error Guide: 'No space left on device' Disk Full on Write
Fix the PostgreSQL 'No space left on device' error: diagnose a full data directory, WAL bloat, table bloat, temp files, and stuck replication slots.
Read guide - · 10 min read
PostgreSQL Error Guide: 'password authentication failed for user' Login Fails
Fix PostgreSQL 'FATAL: password authentication failed for user': diagnose wrong passwords, pg_hba.conf md5/scram method mismatches, missing LOGIN roles, and encryption mismatches.
Read guide - · 9 min read
Postgres 'relation does not exist': Fix search_path, Case, and Schema Issues
Fix the PostgreSQL 'relation does not exist' error: diagnose search_path issues, quoted-identifier case sensitivity, wrong database, schema, and permissions.
Read guide - · 10 min read
PostgreSQL Error Guide: 'canceling statement due to statement timeout'
Fix PostgreSQL's statement timeout cancellations: diagnose slow plans, missing indexes, lock waits, bloat and stale statistics with EXPLAIN ANALYZE and pg_stat_statements.
Read guide - · 10 min read
PostgreSQL Error Guide: 'too many clients already' Connection Limit Exhausted
Fix PostgreSQL 'FATAL: sorry, too many clients already': diagnose exhausted max_connections, idle-in-transaction sessions, missing PgBouncer pooling, and connection leaks.
Read guide - · 11 min read
PostgreSQL Error Guide: 'database is not accepting commands to avoid wraparound data loss'
Fix PostgreSQL's transaction ID wraparound shutdown: diagnose datfrozenxid age, stalled autovacuum, xmin-pinning transactions and replication slots, then recover safely.
Read guide - · 12 min read
Postgres Point-in-Time Recovery and WAL Archiving With AI
Design Postgres point-in-time recovery with base backups, WAL archiving, and recovery targets, using AI to draft and validate a runbook you actually test.
Read guide - · 11 min read
Query Plan Hints and Steering the Postgres Planner With AI
Postgres has no native query hints by design. Learn to steer the planner with pg_hint_plan, enable_* flags for diagnosis, and statistics fixes — guided by AI.
Read guide - · 11 min read
Querying External Data With Postgres Foreign Data Wrappers and AI
Use Postgres foreign data wrappers to query remote databases and files in place, with AI drafting server, user mapping, and foreign table DDL you then verify.
Read guide - · 10 min read
Speeding Up Dashboards With Postgres Materialized Views and AI
Materialized views turn a slow dashboard query into an instant read in Postgres. Learn refresh concurrently, scheduling, and staleness tradeoffs with AI's help.
Read guide - · 11 min read
AI-Assisted Postgres Index Design and Killing Redundant Indexes
Use AI to propose composite and partial indexes, justify column order, and find redundant or unused indexes in Postgres — then verify every one on a replica.
Read guide - · 11 min read
Debugging Slow Postgres Queries With AI and EXPLAIN ANALYZE
Use AI to decode EXPLAIN (ANALYZE, BUFFERS) output and draft fixes for slow Postgres queries — then verify every change on a replica before it touches prod.
Read guide - · 11 min read
Diagnosing Postgres Lock Contention and Deadlocks With AI
Use AI to read pg_locks, untangle blocking chains, and decode deadlock logs in Postgres — then fix the access pattern, verified on a replica, not in prod.
Read guide - · 12 min read
Partitioning Large Postgres Tables With AI
Use AI to choose a partition key, design range or list partitions, and plan a lock-aware migration of a huge Postgres table — verified on a replica before prod.
Read guide - · 11 min read
Postgres Connection Pooling With PgBouncer and AI
Use AI to size PgBouncer pools, pick the right pool mode, and debug exhausted Postgres connections — verified with pgbouncer SHOW stats, not guesswork.
Read guide - · 12 min read
Setting Up and Debugging Postgres Replication With AI
Use AI to stand up streaming and logical replication, read replication lag and slot stats, and debug a stuck Postgres replica — verified on the catalog, not guesses.
Read guide - · 11 min read
Taming Postgres Bloat and Autovacuum With AI
Use AI to read autovacuum stats, size table and index bloat, and tune autovacuum thresholds for hot Postgres tables — verified against the catalog, not vibes.
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Tuning postgresql.conf for Your Workload With AI
Use AI to reason about shared_buffers, work_mem, WAL and planner settings for your actual Postgres workload — then verify every change with measurements, not defaults.
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Zero-Downtime, Lock-Aware Postgres Schema Migrations With AI
Use AI to review Postgres migrations for dangerous locks and draft safe multi-step rollouts — NOT NULL, new columns, type changes — verified on a replica first.
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