What is the Year of the Coin with an Issue Price of $1089.95 and Mintage less than 900?
CREATE TABLE table_name_15 (year INTEGER, issue_price VARCHAR, mintage VARCHAR)
SELECT SUM(year) FROM table_name_15 WHERE issue_price = "$1089.95" AND mintage < 900
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_15 (year INTEGER, issue_price VARCHAR, mintage VARCHAR) Question: What is the Year of the Coin with an Issue Price of $1089.95 and Mintage less than 900? [/INST] SELECT SUM(year) FROM table_name_15 WHERE issue_price = "$1089.95" AND mintage < 900 </s>