chore: show last scan for child feeds

http.go

@@ -134,7 +134,7 @@ func httpServer(ctx context.Context, app *appState) error {
 
 		var end int64
 		err = db.QueryRowContext(ctx, `
-			select count(*) n from twts 
+			select count(*) n from twts
 			JOIN (
 				SELECT
 					feed_id,
@@ -159,29 +159,31 @@ func httpServer(ctx context.Context, app *appState) error {
 			attribute.Int64("offset-start", offset-int64(limit)),
 			attribute.Int64("max", end),
 		))
+		qry := `
+			SELECT
+				feed_id,
+				hash,
+				conv,
+				nick,
+				uri,
+				text
+			FROM twts
+			JOIN (
+				SELECT
+					feed_id,
+					nick,
+					uri
+				FROM feeds
+				where ` + uriarg + `
+			) using (feed_id)
+			order by ulid asc
+			limit ?
+			offset ?
+		`
+		fmt.Println(qry, args)
 		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
 		rows, err := db.QueryContext(
-			ctx,
-			`SELECT
-						feed_id,
-						hash,
-						conv,
-						nick,
-						uri,
-						text
-					FROM twts
-					JOIN (
-						SELECT
-							feed_id,
-							nick,
-							uri
-						FROM feeds
-						where `+uriarg+`
-					) using (feed_id)
-					order by ulid asc
-					limit ?
-					offset ?
-					`, args...,
+			ctx, qry, args...,
 		)
 		if err != nil {
 			span.RecordError(err)
@@ -239,25 +241,27 @@ func httpServer(ctx context.Context, app *appState) error {
 			args = append(args, feed_id, feed_id)
 		}
 
-		rows, err := db.QueryContext(
-			ctx,
-			`SELECT
+		qry := `
+			SELECT
+				feed_id,
+				uri,
+				nick,
+				last_scan_on,
+				coalesce(last_twt_on, last_scan_on) last_twt_on
+			FROM feeds
+			left join (
+				select
 					feed_id,
-					uri,
-					nick,
-					last_scan_on,
-					last_twt_on
-				FROM feeds
-				left join (
-					select 
-						feed_id, 
-						max(strftime('%Y-%m-%dT%H:%M:%fZ', (substring(text, 1, instr(text, '	')-1)))) last_twt_on
-					from twts group by feed_id
-				) using (feed_id)
-				`+where+`
-				order by nick, uri
-            `, args...,
-		)
+					max(strftime('%Y-%m-%dT%H:%M:%fZ', (substring(text, 1, instr(text, '	')-1)))) last_twt_on
+				from twts
+				group by feed_id
+			) using (feed_id)
+			` + where + `
+			order by nick, uri
+		`
+		fmt.Println(qry, args)
+
+		rows, err := db.QueryContext(ctx, qry, args...)
 		if err != nil {
 			span.RecordError(err)
 			return