Horton

Re: A really subtle lexer bug

Andrew Gierth <andrew@tao11.riddles.org.uk>

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From: Andrew Gierth <andrew@tao11.riddles.org.uk>
To: pgsql-hackers@postgresql.org
Date: 2018-08-21T05:47:47Z
Lists: pgsql-hackers 
>>>>> "Andrew" == Andrew Gierth <andrew@tao11.riddles.org.uk> writes:

 Andrew> Patch attached.

 Andrew> This fixes two bugs:

I'm going to split this into two patches, since the O(N^3) fix can be
backpatched further than the operator token fix; the latter bug was
introduced in 9.5 when operator precedences were corrected, while the
former has been there forever.

(But don't wait for me to post those before commenting on either issue)

-- 
Andrew (irc:RhodiumToad)

Commits

  1. Fix lexing of standard multi-character operators in edge cases.