Description

Adds documentation to datatypes.rst regarding implementation and functionality for double quotes being used as escape characters in some situations. See below table for example of implementation. See https://dev.mysql.com/doc/refman/8.0/en/string-literals.html mysql documentation.

+-----------+-----------+-------------+-------------+---------------+---------------+
| 'hello'   | "world"   | '"hello"'   | "'world'"   | '''hello'''   | """world"""   |
|-----------+-----------+-------------+-------------+---------------+---------------|
| hello     | world     | "hello"     | 'world'     | 'hello'       | "world"       |
+-----------+-----------+-------------+-------------+---------------+---------------+

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

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