Split query

Knowing the result sets of a statement would be informative to the users.
Currently, all the statements in the SQL editor are executed as a batch of SQL statements. The returned results don't store the exact SQL query that was executed. Therefore, the query must be split into particular statements before sending to the API.

The `splitQuery` helper can be used for splitting the statements, however, for
compound statements, it requires the changing of DELIMITER to split correctly. In other words, the users must specify a distinct delimiter in the query. This limitation should be added to the documentation.