SQL template partials

[Adam Gent]

Allow SQL template partials. The idea is that you often have a the select fields duplicated over and over again this would allow you to validate your selecting on the same fields but unfortunately require copy n' paste

SELECT from blah
-- { > stuff.sql }
blah as "stuff.blah",
foo as "fooBar"
-- { < }
where blah ....

Then stuff.sql would be from the same package or from an explicate classpath. The contents with in the comment would be validated with the contents in stuff.sql.

[Adam Gent]

Also allow creating partial blocks like:

In stuff.sql :

SELECT from blah
-- {#fields}
blah as "stuff.blah",
foo as "fooBar"
-- {/fields}
where blah ....

In some other SQL file.

SELECT from blah
-- { > stuff.sql#fields }
blah as "stuff.blah",
foo as "fooBar"
-- { < }
where blah ....