   [3mAttention: the data frames do not match exactly, but as no primary key columns are [0m
   [3mprovided, the row and column matches cannot be computed.[0m

 [1mSchemas[0m
 ▔▔▔▔▔▔▔
   ┏━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┓
   ┃[1;31m [0m[1;31m Left only  [0m[1;31m [0m┃[1m [0m[1m In common  [0m[1m [0m┃[1;32m [0m[1;32m Right only [0m[1;32m [0m┃
   ┃[1;31m [0m[1;31m 2 columns  [0m[1;31m [0m┃[1m [0m[1m  1 column  [0m[1m [0m┃[1;32m [0m[1;32m  1 column  [0m[1;32m [0m┃
   ┡━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━┩
   │ [36mcol_a[0m [Null] │     ...      │ [36mcol_d[0m [Null] │
   │ [36mcol_b[0m [Null] │              │              │
   └──────────────┴──────────────┴──────────────┘
