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: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers@postgresql.org
Date: 2018-08-23T18:43:50Z
Lists: pgsql-hackers

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Here's what I will push unless there's something important I missed.

I split the regression tests between create_operator.sql and
polymorphism.sql, because => is really "named argument syntax" rather
than an operator as such, and polymorphism.sql is where the existing
tests were for that.

I tried to keep the three lexers as closely matched as possible, even
though psqlscan.l doesn't actually need some of the changes.

-- 
Andrew (irc:RhodiumToad)

Commits

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