Steps tor reproduce:
Try to create a table with array column.
$schema['ENTITY_TYPE']['fields']['FIELD_NAME']['pgsql_type'] = 'bigint[]';
Syntax error: 7 ERROR: zero-length delimited identifier at or near """"
LINE 10: "FIELD_NAME" bigint"" NULL,
Active
10.1 ✨
Particularly affects sites running on the PostgreSQL database.
Workaround
$schema['ENTITY_TYPE']['fields']['FIELD_NAME']['pgsql_type'] = 'bigint ARRAY';
Interesting, this could be addressed in ✨ [PP-1] Introduce a Connection::executeDdlStatement method Active