fix TestSQLMetadataStore

stores/sql/main.go

@@ -1853,47 +1853,50 @@ func Slab(ctx context.Context, tx sql.Tx, key object.EncryptionKey) (object.Slab
 	defer hostStmt.Close()
 
 	for i, sectorID := range sectorIDs {
-		// contracts
-		rows, err := stmt.Query(ctx, sectorID)
+		slab.Shards[i].Contracts = make(map[types.PublicKey][]types.FileContractID)
+
+		// hosts
+		rows, err = hostStmt.Query(ctx, sectorID)
 		if err != nil {
-			return object.Slab{}, fmt.Errorf("failed to fetch contracts: %w", err)
+			return object.Slab{}, fmt.Errorf("failed to fetch hosts: %w", err)
 		}
 		if err := func() error {
 			defer rows.Close()
 
-			slab.Shards[i].Contracts = make(map[types.PublicKey][]types.FileContractID)
 			for rows.Next() {
 				var pk types.PublicKey
-				var fcid types.FileContractID
-				if err := rows.Scan((*PublicKey)(&pk), (*FileContractID)(&fcid)); err != nil {
-					return fmt.Errorf("failed to scan contract: %w", err)
+				if err := rows.Scan((*PublicKey)(&pk)); err != nil {
+					return fmt.Errorf("failed to scan host: %w", err)
 				}
 				if _, exists := slab.Shards[i].Contracts[pk]; !exists {
 					slab.Shards[i].Contracts[pk] = []types.FileContractID{}
 				}
-				if fcid != (types.FileContractID{}) {
-					slab.Shards[i].Contracts[pk] = append(slab.Shards[i].Contracts[pk], fcid)
-				}
 			}
 			return nil
 		}(); err != nil {
 			return object.Slab{}, err
 		}
 
-		// hosts
-		rows, err = hostStmt.Query(ctx, sectorID)
+		// contracts
+		rows, err := stmt.Query(ctx, sectorID)
 		if err != nil {
-			return object.Slab{}, fmt.Errorf("failed to fetch hosts: %w", err)
+			return object.Slab{}, fmt.Errorf("failed to fetch contracts: %w", err)
 		}
 		if err := func() error {
 			defer rows.Close()
 
 			for rows.Next() {
 				var pk types.PublicKey
-				if err := rows.Scan((*PublicKey)(&pk)); err != nil {
-					return fmt.Errorf("failed to scan host: %w", err)
+				var fcid types.FileContractID
+				if err := rows.Scan((*PublicKey)(&pk), (*FileContractID)(&fcid)); err != nil {
+					return fmt.Errorf("failed to scan contract: %w", err)
+				}
+				if _, exists := slab.Shards[i].Contracts[pk]; !exists {
+					slab.Shards[i].Contracts[pk] = []types.FileContractID{}
+				}
+				if fcid != (types.FileContractID{}) {
+					slab.Shards[i].Contracts[pk] = append(slab.Shards[i].Contracts[pk], fcid)
 				}
-				slab.Shards[i].Contracts[pk] = []types.FileContractID{}
 			}
 			return nil
 		}(); err != nil {