Cal Corum 92fc101e38 Fix PostgreSQL compatibility for GROUP BY queries and aggregations ... - Fix NULL handling for FK checks in stratplays.py: use x.field_id instead of x.field to avoid triggering FK lookups on potentially missing rows - Cast boolean is_start to integer for SUM() - PostgreSQL cannot sum booleans - Add missing GROUP BY clause to Decision aggregate query - Add Case import for boolean-to-integer casting - Update migration script with boolean/datetime column mappings - Exclude legacy battingstat/pitchingstat tables from migration - Add comprehensive POSTGRES_MIGRATION_GUIDE.md documentation Tested: /plays/batting and /plays/pitching endpoints work with group_by=player		2026-01-26 21:59:25 -06:00
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POSTGRES_MIGRATION_GUIDE.md	Fix PostgreSQL compatibility for GROUP BY queries and aggregations	2026-01-26 21:59:25 -06:00