Migrate fails to build the map on PostgreSQL

I have tested Migrate with custom datas, using PostgreSQL.

I encouter this error :

Migration failed with source plugin exception: SQLSTATE[42703]: Undefined column: 7 ERREUR:  la colonne d.id n'existe pas                               [error]
LINE 4: ...UTER JOIN client.public.migrate_map_directory map ON d.ID = map...
                                                             ^: SELECT d."ID" AS "ID", d."Email" AS "Email", d."Lastname" AS "Lastname", d."Firstname" AS "Firstname",
map.sourceid1 AS migrate_map_sourceid1, map.source_row_status AS migrate_map_source_row_status
FROM 
{v2_directory} d
LEFT OUTER JOIN client.public.migrate_map_directory map ON d.ID = map.sourceid1
WHERE ( (map.sourceid1 IS NULL ) OR (map.source_row_status = :db_condition_placeholder_0) ); Array
(
    [:db_condition_placeholder_0] => 1
)

I've tested this SQL query in PG, the error is the same.

I've managed to fix the query using quotes (on the "ON" statement), as following :

SELECT d."ID" AS "ID", d."Email" AS "Email", d."Lastname" AS "Lastname", d."Firstname" AS "Firstname",
map.sourceid1 AS migrate_map_sourceid1, map.source_row_status AS migrate_map_source_row_status
FROM 
v2_directory d
LEFT OUTER JOIN client.public.migrate_map_directory map ON d."ID" = map.sourceid1
WHERE ( (map.sourceid1 IS NULL ) OR (map.source_row_status = 1) );