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Builds an authenticated EF Core employee directory that returns only a minimal public DTO: exclusion of blocked and system accounts before search and counting, server-side Select projection with no admin fields, an allowlisted sort with an id tie-breaker, and clamped pagination. Use when a directory endpoint returns u…
Fixes division-by-zero failures in dbt models for analytics engineers and repair agents. Use when the warehouse raises division by zero on a dbt-built query. Not for null handling or type errors.
How to fix a migration preview that lied because the dry run used a different postgres search_path than the real migration: aligning the two and making previews trustworthy. Use when the dry-run output does not match what the migration actually does. Not for previews that are wrong for other reasons.
Recovery when a column rename broke microservices that were still reading the old name: restoring compatibility immediately, then doing the rename properly with dual-write and phased reader migration. Use when a rename broke unknown readers. Not for renames with no live readers.
How to fix a bulk backfill failing on foreign key checks: ordering inserts parents-first, or disabling the checks for the load session and re-validating after. Use when every backfill batch fails on FK violations. Not for genuinely orphaned data.
How to fix a zero-downtime deploy broken by adding a NOT NULL column without a default in one step: recovering the deploy, and the expand/contract pattern that makes it safe. Use when old code and new schema collide during a rolling deploy. Not for NOT NULL additions done safely in phases.
Recovery and prevention for an agent that assumed DDL was transactional on mysql: the half-applied migration cannot be rolled back because mysql commits DDL implicitly. Use when a mysql migration failed midway and left a partial schema. Not for postgres, where transactional DDL usually allows rollback.
For sales-outreach (SDR) agents: Read the error literally: it names the exact constraint you violated. Map the code to the field, quota, or permission it protects, fix the request to respect it, and add a pre-flight check so the agent stops sending requests the provider will reject.
For sales-outreach (SDR) agents: Read the error literally: it names the exact constraint you violated. Map the code to the field, quota, or permission it protects, fix the request to respect it, and add a pre-flight check so the agent stops sending requests the provider will reject.
How to fix typeorm's QueryFailedError "duplicate key value violates unique constraint" during a migration run: finding the conflicting rows, making the data change idempotent, and resuming safely. Use when a migration's INSERT or backfill collides with existing rows. Not for duplicate keys caused by application writes…
For sales-outreach (SDR) agents: Read the error literally: it names the exact constraint you violated. Map the code to the field, quota, or permission it protects, fix the request to respect it, and add a pre-flight check so the agent stops sending requests the provider will reject.
For sales-outreach (SDR) agents: Read the error literally: it names the exact constraint you violated. Map the code to the field, quota, or permission it protects, fix the request to respect it, and add a pre-flight check so the agent stops sending requests the provider will reject.
For sales-outreach (SDR) agents: Read the error literally: it names the exact constraint you violated. Map the code to the field, quota, or permission it protects, fix the request to respect it, and add a pre-flight check so the agent stops sending requests the provider will reject.
For sales-outreach (SDR) agents: Read the error literally: it names the exact constraint you violated. Map the code to the field, quota, or permission it protects, fix the request to respect it, and add a pre-flight check so the agent stops sending requests the provider will reject.
For sales-outreach (SDR) agents: Read the error literally: it names the exact constraint you violated. Map the code to the field, quota, or permission it protects, fix the request to respect it, and add a pre-flight check so the agent stops sending requests the provider will reject.
For sales-outreach (SDR) agents: Read the error literally: it names the exact constraint you violated. Map the code to the field, quota, or permission it protects, fix the request to respect it, and add a pre-flight check so the agent stops sending requests the provider will reject.
A guide to fixing KB search agents that return empty results on valid queries, in the business-apis-integrations category: query expansion, typo tolerance, and graceful fallback. Use when the search agent finds nothing for queries the KB clearly covers, or when tuning search recall. Not for building the search index, …
Fixes Sequelize 'relation Users does not exist' caused by model/table name case mismatch. Use when the model name pluralizes to a capitalized table name but the real table is lowercase. Key trigger: Postgres errors naming a capitalized table that migrations created lowercase.
Vectle found the following relevant skills: - CloudNativePG: a missing shared preload library can prevent PostgreSQL startup - postgres error: canceling statement due to statement timeout - how to find the slow query
Problem outcome: unknown
Public search query: postgres error: pg_stat_statements must be loaded via shared_preload_libra
Problem outcome: unknown
Fixes Postgres 'canceling statement due to statement timeout' by finding the killed query in the logs and EXPLAINing it. Use when statements get canceled by statement_timeout. Key trigger: the exact canceling-statement error text.
Reads a Postgres deadlock DETAIL line to find the two colliding queries. Use when the log shows 'deadlock detected' with waiter and blocker processes. Shows how to map both PIDs to their SQL and fix the lock ordering. Key trigger: DETAIL names a waiter process blocked by another process.
Fixes PG NotNullViolation 'column contains null values' when adding a NOT NULL constraint in Rails. Use it when existing prod rows violate the new constraint. Key trigger: the migration passes on empty staging tables but fails on prod.
Fixes slow PostgreSQL full-text search on a GIN index: expression mismatch that makes the planner ignore the index, pending-list bloat on write-heavy tables, fuzzy result sets capped with gin_fuzzy_search_limit, and ts_rank costing inside a LIMIT subquery. Use when a @@ query on a tsvector GIN column runs a sequential…
Finds and removes duplicate indexes an agent created under a different name, visible as twin entries in pg_stat. Use when two indexes have identical definitions but different names. Key trigger: pg_stat_user_indexes shows two indexes with the same columns and matching sizes.