Fixed error

dbms/tests/performance/if_to_multiif.xml

@@ -11,14 +11,14 @@
         <!-- sum() does not work for String values, need to investigate what
             this test meant. Disable for now. -->
         <table_exists>nonexistent_table_if_multiif</table_exists>
-    <precondition>
+    </preconditions>
 
 
     <query><![CDATA[ WITH number AS x SELECT sum(x < 1 ? 1 : (x < 5 ? 2 : 3)) FROM numbers(1000000) ]]></query>
     <query><![CDATA[ WITH number AS x SELECT sum(x < 1 ? '1' : (x < 5 ? '2' : '3')) FROM numbers(1000000) ]]></query>
     <query><![CDATA[ WITH number AS x SELECT sum(x < 1 ? 1 : (x < 5 ? 2 : (x < 10 ? 3 : (x % 2 ? 4 : 5)))) FROM numbers(1000000) ]]></query>
     <query><![CDATA[ WITH number AS x SELECT sum(x < 1 ? '1' : (x < 5 ? '2' : (x < 10 ? '3' : (x % 2 ? '4' : '5')))) FROM numbers(1000000) ]]></query>
-    <query><![CDATA[ 
+    <query><![CDATA[
 WITH number AS x, x = 1 ? 1 : (x = 2 ? 2 : (x = 3 ? 3 : (x = 4 ? 4 : (x = 5 ? 5 : (x = 6 ? 6 : (x = 7 ? 7 : (x = 8 ? 8 : (x = 9 ? 9 : (x = 10 ? 10 : (x = 11 ? 11 : (x = 12 ? 12 : (x = 13 ? 13 : (x = 14 ? 14 : (x = 15 ? 15 : (x = 16 ? 16 : (x = 17 ? 17 : (x = 18 ? 18 : (x = 19 ? 19 : 20)))))))))))))))))) AS res SELECT sum(res) FROM numbers(1000000)
     ]]></query>
 </test>