mongo2pg – Migration Report

Cluster: localhost:2717  |  Database: sample_analytics  |  Generated: 2026-05-05 06:34:11 UTC

Collections
3
Total Documents
3992
PG Tables
8
Complexity Score
15.1
Complexity
Easy
Score (avg weighted)
3.36
Score (max collection)
4.12

Complexity score per collection: C = depth/2 + array_fields + distinct_fields/avg_fields_per_doc. DB total: 1.5 × collections + Σ Ci. Thresholds: <30 Easy · 30–80 Medium · >80 Hard.
Width (top): number of top-level fields in the collection schema.
Width (max): highest field count found at any single nesting level, with the level shown in parentheses (probability-weighted).
Depth (max): maximum nesting depth — top-level fields are depth 1, their sub-fields depth 2, etc.
Fields (total): expected number of fields a typical document in the collection actually has, summed across all nesting levels (probability-weighted). Hover the value for the per-level breakdown.

Collection Documents Sampled Width (top) Width (max) Depth (max) Fields (total) Score PG Tables
1746 1000 4 4.0 (L1) 2 5.0 3.00 2
500 500 9 8.0 (L1) 4 14.5 4.12 4
1746 1000 6 6.0 (L3) 3 13.0 3.50 2