Nested Loop (cost=0.68..14.51 rows=1 width=64)
-> Nested Loop Semi Join (cost=0.55..14.32 rows=1 width=72)
-> Nested Loop (cost=0.27..12.72 rows=1 width=80)
-> Seq Scan on pg_constraint r (cost=0.00..4.39 rows=1 width=72)
Filter: (contype = 'f'::"char")
-> Index Scan using pg_class_oid_index on pg_class tc (cost=0.27..8.29 rows=1 width=8)
Index Cond: (oid = r.conrelid)
-> Nested Loop (cost=0.27..1.60 rows=1 width=4)
Join Filter: (c.relnamespace = n.oid)
-> Index Scan using pg_class_oid_index on pg_class c (cost=0.27..0.47 rows=1 width=8)
Index Cond: (oid = tc.oid)
Filter: (relname = 'doctrine_migration_versions'::name)
-> Seq Scan on pg_namespace n (cost=0.00..1.11 rows=1 width=4)
Filter: ((nspname <> ALL ('{pg_catalog,information_schema,pg_toast}'::name[])) AND (nspname = ANY (current_schemas(false))))
-> Index Only Scan using pg_namespace_oid_index on pg_namespace tn (cost=0.13..0.17 rows=1 width=4)
Index Cond: (oid = tc.relnamespace)