Which Year has a Competition of european championships, and Notes of 66.81 m?
CREATE TABLE table_name_26 (year INTEGER, competition VARCHAR, notes VARCHAR)
SELECT SUM(year) FROM table_name_26 WHERE competition = "european championships" AND notes = "66.81 m"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_26 (year INTEGER, competition VARCHAR, notes VARCHAR) Question: Which Year has a Competition of european championships, and Notes of 66.81 m? [/INST] SELECT SUM(year) FROM table_name_26 WHERE competition = "european championships" AND notes = "66.81 m" </s>