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Top 5 Features by Time-Series Metric
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Top 5 Features by Time-Series Metric

MediumSQL · PostgreSQL

Problem

Write a SQL query to identify the top 5 performing features based on a specific time-series metric.

Assume feature_daily_metrics contains one row per feature and date, with metric_value as the metric. Consider active features across all available dates.

Output

  1. Return one row per feature with feature_id, feature_name, and average_metric_value.
  2. Include the five highest averages, ordered descending, with feature_id ascending as the tie-breaker.

Schema

feature_catalog
ColumnTypeDescription
feature_idPKINTUnique feature identifier
feature_nameVARCHAR(100)Feature display name
is_activeBOOLEANWhether the feature is currently active
feature_daily_metrics
ColumnTypeDescription
metric_idPKINTUnique metric observation identifier
feature_idINTReferenced feature identifier
metric_dateDATEDate of the metric observation
metric_valueDECIMAL(10,2)Time-series metric value for the feature and date
Tablesfeature_catalogfeature_daily_metrics
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