CREATE TABLE table_204_503 (id NUMBER, "year" NUMBER, "competition" CLOB, "venue" CLOB, "position" CLOB, "notes" CLOB)

which was held in spain , the european championships or european indoor championships ?
SELECT "competition" FROM table_204_503 WHERE "venue" = 'spain' AND "competition" IN ('european championships', 'european indoor championships')
SELECT "competition" FROM "table_204_503" WHERE "competition" IN ('european championships', 'european indoor championships') AND "venue" = 'spain'