diff --git a/contrib/ci/lambda_functions/web.py b/contrib/ci/lambda_functions/web.py
--- a/contrib/ci/lambda_functions/web.py
+++ b/contrib/ci/lambda_functions/web.py
@@ -95,7 +95,7 @@
 
             cset_results = {}
 
-            for entry in get_jobs_metdata(job_table, repo_name, push['node']):
+            for entry in get_jobs_metadata(job_table, repo_name, push['node']):
                 job_name = entry['job_name']
                 build_number = entry['build_number']
 
@@ -374,7 +374,7 @@
     }
 
 
-def get_jobs_metdata(job_table, repo, node):
+def get_jobs_metadata(job_table, repo, node):
     """Obtain jobs records for a revision."""
     exclusive_start_key = None
 
@@ -385,12 +385,27 @@
             extra['ExclusiveStartKey'] = exclusive_start_key
 
         res = job_table.scan(
-            Select='ALL_ATTRIBUTES',
             FilterExpression='repo = :repo AND node = :node',
             ExpressionAttributeValues={
                 ':repo': repo,
                 ':node': node,
             },
+            ProjectionExpression=', '.join((
+                'build_number',
+                'end_time',
+                'execution_state',
+                'exit_clean',
+                'fail_count',
+                'instance_hourly_cost',
+                'job_id',
+                'job_name',
+                'output_log_url',
+                'pass_count',
+                'schedule_time',
+                'skip_count',
+                'start_time',
+                'test_count',
+            )),
             **extra
         )
         for entry in res['Items']: