Update sqlparse to 0.4.2

[pyup-bot]

This PR updates sqlparse from 0.3.1 to 0.4.2.

Changelog

0.4.2

----------------------------

Notable Changes

* IMPORTANT: This release fixes a security vulnerability in the
strip comments filter. In this filter a regular expression that was
vulnerable to ReDOS (Regular Expression Denial of Service) was
used. See the security advisory for details: https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhf
The vulnerability was discovered by erik-krogh and yoff from
GitHub Security Lab (GHSL). Thanks for reporting!

Enhancements

* Add ELSIF as keyword (issue584).
* Add CONFLICT and ON_ERROR_STOP keywords (pr595, by j-martin).

Bug Fixes

* Fix parsing of backticks (issue588).
* Fix parsing of scientific number (issue399).

0.4.1

----------------------------

Bug Fixes

* Just removed a debug print statement, sorry...

0.4.0

----------------------------

Notable Changes

* Remove support for end-of-life Python 2.7 and 3.4. Python 3.5+ is now
required.
* Remaining strings that only consist of whitespaces are not treated as
statements anymore. Code that ignored the last element from
sqlparse.split() should be updated accordingly since that function
now doesn't return an empty string as the last element in some
cases (issue496).

Enhancements

* Add WINDOW keyword (pr579 by ali-tny).
* Add RLIKE keyword (pr582 by wjones1).

Bug Fixes

* Improved parsing of IN(...) statements (issue566, pr567 by hurcy).
* Preserve line breaks when removing comments (issue484).
* Fix parsing error when using square bracket notation (issue583).
* Fix splitting when using DECLARE ... HANDLER (issue581).
* Fix splitting of statements using CASE ... WHEN (issue580).
* Improve formatting of type casts in parentheses.
* Stabilize formatting of invalid SQL statements.

Links

• PyPI: https://pypi.org/project/sqlparse
• Changelog: https://pyup.io/changelogs/sqlparse/
• Repo: https://github.com/andialbrecht/sqlparse

[pyup-bot]

Closing this in favor of #108