roachtest: more logging on deleted sst in OR recovery

This commit adds more logging on the SST that is deleted in the OR
recovery roachtest to determine exactly what backed up span and data was
deleted.

Epic: None

Release note: None

Author: kev-cao

pkg/cmd/roachtest/tests/mixed_version_backup.go

@@ -2355,9 +2355,11 @@ func (d *BackupRestoreTestDriver) deleteUserTableSST(
 	ctx context.Context, l *logger.Logger, db *gosql.DB, collection *backupCollection,
 ) error {
 	var sstPath string
+	var startPretty, endPretty string
+	var sizeBytes, numRows int
 	if err := db.QueryRowContext(
 		ctx,
-		`SELECT path FROM
+		`SELECT path, start_pretty, end_pretty, size_bytes, rows FROM
 		(
 			SELECT row_number() OVER (), * FROM
 			[SHOW BACKUP FILES FROM LATEST IN $1]
@@ -2366,14 +2368,17 @@ func (d *BackupRestoreTestDriver) deleteUserTableSST(
 		ORDER BY row_number DESC
 		LIMIT 1`,
 		collection.uri(),
-	).Scan(&sstPath); err != nil {
+	).Scan(&sstPath, &startPretty, &endPretty, &sizeBytes, &numRows); err != nil {
 		return errors.Wrapf(err, "failed to get SST path from %s", collection.uri())
 	}
 	uri, err := url.Parse(collection.uri())
 	if err != nil {
 		return errors.Wrapf(err, "failed to parse backup collection URI %q", collection.uri())
 	}
-	l.Printf("deleting sst %s at %s", sstPath, uri)
+	l.Printf(
+		"deleting sst %s at %s: covering %d bytes and %d rows in [%s, %s)",
+		sstPath, uri, sizeBytes, numRows, startPretty, endPretty,
+	)
 	storage, err := cloud.ExternalStorageFromURI(
 		ctx,
 		collection.uri(),