Github user jodersky commented on the issue:
https://github.com/apache/spark/pull/15398
@hvanhovell, I just wanted to add that option 2 from my last comment won't
work: if we replace `\\` with `\\\\` in the unescape function (as is done for
`\%` and `\_`), it will be impossible for a user to specify a single backslash.
Considering that, another potential solution would be change the ANTLR
parser to handle escaping differently in LIKE expressions. This would however
introduce a special case which complicates the overall rules.
Maybe leaving the current behaviour but documenting that backslashes are
escaped on the parser-level is the best option?
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
