Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_204_933 ( id number, "year" number, "competition" text, "date" text, "location" text, "opponent" text, "score" text, "result" text, "bye" text )

### Question ###
who did the austria davis cup team play after they beat barcelona in the world group 1st round in 1990 ?

### Accurate SQL ###

SELECT "opponent" FROM table_204_933 WHERE id = (SELECT id FROM table_204_933 WHERE "year" = 1990 AND "competition" = 'world group, 1st round') + 1