PostgreSQL Partial Indexes vs Full Indexes for Soft Deleted Rows
For tables that use soft deletes, a partial index that covers only rows where deleted_at IS NULL is usually smaller and faster than a full index, because most...
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PostgreSQL JSONB GIN Indexes and Query Operator Trade Offs
Different JSONB GIN operator classes support different operator sets and index sizes. A production system should define its correctness guarantees before...
PostgreSQL Serializable Transactions vs Explicit Application Locks
Serializable isolation detects conflicting concurrent histories but callers must handle serialization retries. A production system should define its...
PostgreSQL Partition Pruning vs Indexing for Event Tables
Partition pruning removes irrelevant partitions while indexes accelerate scans within remaining partitions. A production system should define its correctness...
PostgreSQL Logical Replication vs Physical Streaming Replication
Physical replication transfers WAL changes for a compatible cluster, while logical replication publishes changes for selected relations. Define the real...
PostgreSQL HOT Updates and Fillfactor for Write Heavy Tables
Heap-only tuple updates can avoid updating indexes when indexed values remain unchanged and page space is available. Define the real service goal before...
PostgreSQL Keyset Pagination vs Offset for High Volume Tables
OFFSET pagination can scan and discard increasing numbers of rows for deep pages. Define the real service goal before choosing a setting. The expected traffic,...
PostgreSQL Autovacuum Tuning for High Update Workloads
Autovacuum helps reclaim dead tuples and maintain planner statistics, but sustained updates can outrun default maintenance settings. Begin with requirements...
PostgreSQL Materialized Views vs Summary Tables for Analytics
Materialized views persist query results and need refreshes; manually maintained summary tables allow tailored incremental updates. Start with the actual...