SQLParserUtils::getPlaceholderPositions() fails if there are quoted strings containing only backslashes

[mondrake]

Passing the following statement to SQLParserUtils::getPlaceholderPositions results in failure to identify the second placeholder condition_1.

SELECT data.age AS age, data.id AS id, data.name AS name, data.id AS id
FROM test_data data 
WHERE 
  (data.description LIKE :condition_0 ESCAPE '\\') AND 
  (data.description LIKE :condition_1 ESCAPE '\\')
ORDER BY id ASC

Apparently, ::getUnquotedStatementFragments gets confused by escapes.

Added a test to prove the bug.

[mondrake]

Fixed my bug, but generated another one :)

[Ocramius]

@mondrake excellent work, thanks! Looking good to me.

[deeky666]

I have to admit that I barely understand those crazy regexes but the tests look reasonable to me and I simply trust you guys on this one ;)

[Ocramius]

LGTM 👍

[Ocramius]

@mondrake just a note - please use more self-explanatory commit messages next time :-)

[Ocramius]

Backported to 2.5 via 6cc34f1

[mondrake]

Sure 😄