Includes tech review changes

Author: Sarah Simpers

source/supported-operations.txt

@@ -37,6 +37,8 @@ Comparison Functions and Operators
      - Greater than or equal operator
    * - ``GREATEST()``
      - Return the largest argument
+   * - ``EXISTS()``
+     - Test for the existence of a record you specify in a subquery
    * - ``IN()``
      - Check whether a value is within a set of values
    * - ``INTERVAL(N,N1,N2,...)``
@@ -78,8 +80,6 @@ Comparison Functions and Operators
      - Not equal operator
    * - ``NOT IN()``
      - Check whether a value is not within a set of values
-   * - ``WHERE EXISTS()``
-     - Test for the existence of a record you specify in a subquery
 
 Logical Operators
 -----------------