What was the performance length of the 1999 season in bydgoszcz, poland?
CREATE TABLE "performance_progression" (
  "discipline" text,
  "season" real,
  "performance" text,
  "place" text,
  "date" text
);
SELECT "performance" FROM "performance_progression" WHERE "season"=1999 AND "place"='bydgoszcz, poland';