Database & SQL
PostgreSQL Partition Strategy Calculator
Enter total projected row count, data retention, and daily write rate to compute optimal partition count, strategy, and partition size for range, list, or hash partitioning.
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About this tool
PostgreSQL Partition Strategy Calculator
The PostgreSQL Partition Strategy Calculator computes optimal partition count, partition size, and drop schedule from row count, retention period, and write rate.
• Determine how many monthly partitions to create for a 2-year time-series table
• Calculate whether hash partitioning achieves even distribution at a given row count
• Model partition size to ensure each partition stays within the 10M-100M row sweet spot
• Plan partition drop schedule for retention-based data lifecycle management
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FAQ
What does this tool tell you?
The PostgreSQL Partition Strategy Calculator computes optimal partition count, partition size, and drop schedule from row count, retention period, and write rate.
What affects the result most?
Range partitioning: best for time-series data — partition by month/year, drop old partitions instantly. List partitioning: best for low-cardinality categorical column — partition by region, status. Hash partitioning: best for even distribution without natural partition key — partition by id modulo N.
How should I use the result?
The calculation is deterministic — the same inputs always produce the same output — so the most useful workflow is to vary one input at a time and see which factor moves the result most. That tells you where to focus your attention before committing to a decision.
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