Fix bug on joins

hotosm · Sep 2, 2023 · c2460c0 · c2460c0
1 parent a9d7d49
commit c2460c0
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/backend/field_update b/backend/field_update
@@ -192,18 +192,18 @@ class Raw:
             t2 AS (
                 SELECT 
                     t1.osm_id,
-                    array_agg(cg.{source_column}) AS aa_fids
+                    COALESCE(array_agg(cg.{source_column}),ARRAY[0]::integer[]) AS aa_fids
                 FROM 
                     t1
-                INNER JOIN 
+                LEFT JOIN 
                     {source_table} cg ON ST_Intersects(t1.geom, cg.{source_geom})
                 GROUP BY 
                     t1.osm_id
             )
             UPDATE 
                 {target_table} uw
             SET 
-                {target_column} = COALESCE(t2.aa_fids, ARRAY[0]::integer[])
+                {target_column} = t2.aa_fids
             FROM 
                 t2
             WHERE