Highlighting of SQL inside strings

Nobody has claimed this yet.

The stock Python package performs syntax highlighting inside strings containing SQL commands. That's rather useful, even though the implementation might need some more work. In this example:

``` python
create = 'CREATE TABLE test (id INT, name TEXT);'
insert = 'INSERT INTO test VALUES (1, "Bob")'
```

in the second line, words recognized as SQL are highlighted, but not in the first one, where "CREATE TABLE" has the same color as the non-reserved names.

(Actually, as you can see, even Github's Markdown does it, with exactly the same behavior, so perhaps something is wrong with the first line, although it does execute properly)

Do you consider this a useful addition?

No files or tests are named. Reproduce the two Python string examples in the supported editor integrations, then inspect the Python string-handling and SQL-highlighting entry points to understand why CREATE TABLE differs from INSERT. Done means SQL keywords receive consistent highlighting in both examples without breaking ordinary Python strings.

Written by the indexing model from the issue text.