CREATE TABLE table_204_933 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "date" TEXT, "location" TEXT, "opponent" TEXT, "score" TEXT, "result" TEXT, "bye" TEXT)

who did the austria davis cup team play after they beat barcelona in the world group 1st round in 1990 ?
SELECT "opponent" FROM table_204_933 WHERE id = (SELECT id FROM table_204_933 WHERE "year" = 1990 AND "competition" = 'world group, 1st round') + 1
SELECT "opponent" FROM "table_204_933" WHERE "id" = (SELECT "id" FROM "table_204_933" WHERE "competition" = 'world group, 1st round' AND "year" = 1990) + 1