diff --git a/lib/harmony/harmonydb/sql/20231217-sdr-pipeline.sql b/lib/harmony/harmonydb/sql/20231217-sdr-pipeline.sql
index e41e865d0..c0540148f 100644
--- a/lib/harmony/harmonydb/sql/20231217-sdr-pipeline.sql
+++ b/lib/harmony/harmonydb/sql/20231217-sdr-pipeline.sql
@@ -67,8 +67,8 @@ create table sectors_sdr_pipeline (
     -- Failure handling
     failed bool not null default false,
     failed_at timestamp,
-    failed_reason varchar(20),
-    failed_reason_msg text,
+    failed_reason varchar(20) not null default '',
+    failed_reason_msg text not null default '',
 
     -- constraints
     primary key (sp_id, sector_number)
diff --git a/provider/lpseal/poller.go b/provider/lpseal/poller.go
index 4747eb332..c3222016d 100644
--- a/provider/lpseal/poller.go
+++ b/provider/lpseal/poller.go
@@ -42,7 +42,7 @@ func (s *SealPoller) RunPoller(ctx context.Context) {
 			return
 		case <-ticker.C:
 			if err := s.poll(ctx); err != nil {
-				log.Errorf("polling sdr sector pipeline: %w", err)
+				log.Errorw("polling failed", "error", err)
 			}
 		}
 	}
@@ -84,7 +84,19 @@ func (s *SealPoller) poll(ctx context.Context) error {
 		FailedReason string `db:"failed_reason"`
 	}
 
-	err := s.db.Select(ctx, &tasks, `SELECT * FROM sectors_sdr_pipeline WHERE after_commit_msg_success != true`)
+	err := s.db.Select(ctx, &tasks, `SELECT 
+       sp_id, sector_number,
+       task_id_sdr, after_sdr,
+       task_id_tree_d, after_tree_d,
+       task_id_tree_c, after_tree_c,
+       task_id_tree_r, after_tree_r,
+       task_id_precommit_msg, after_precommit_msg,
+       task_id_precommit_msg_wait, after_precommit_msg_success,
+       task_id_porep, porep_proof,
+       task_id_commit_msg, after_commit_msg,
+       task_id_commit_msg_wait, after_commit_msg_success,
+       failed, failed_reason
+    FROM sectors_sdr_pipeline WHERE after_commit_msg_success != true`)
 	if err != nil {
 		return err
 	}
diff --git a/provider/lpwinning/winning_task.go b/provider/lpwinning/winning_task.go
index 8b289a8de..b795ade4f 100644
--- a/provider/lpwinning/winning_task.go
+++ b/provider/lpwinning/winning_task.go
@@ -107,13 +107,13 @@ func (t *WinPostTask) Do(taskID harmonytask.TaskID, stillOwned func() bool) (don
 	// First query to fetch from mining_tasks
 	err = t.db.QueryRow(ctx, `SELECT sp_id, epoch, base_compute_time FROM mining_tasks WHERE task_id = $1`, taskID).Scan(&details.SpID, &details.Epoch, &details.CompTime)
 	if err != nil {
-		return false, err
+		return false, xerrors.Errorf("query mining base info fail: %w", err)
 	}
 
 	// Second query to fetch from mining_base_block
 	rows, err := t.db.Query(ctx, `SELECT block_cid FROM mining_base_block WHERE task_id = $1`, taskID)
 	if err != nil {
-		return false, err
+		return false, xerrors.Errorf("query mining base blocks fail: %w", err)
 	}
 	defer rows.Close()
 
@@ -126,7 +126,7 @@ func (t *WinPostTask) Do(taskID harmonytask.TaskID, stillOwned func() bool) (don
 	}
 
 	if err := rows.Err(); err != nil {
-		return false, err
+		return false, xerrors.Errorf("query mining base blocks fail (rows.Err): %w", err)
 	}
 
 	// construct base