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Tom Lane f37ac613a8 Prevent mis-encoding of "trailing junk after numeric literal" errors. ... Since commit 2549f0661, we reject an identifier immediately following a numeric literal (without separating whitespace), because that risks ambiguity with hex/octal/binary integers. However, that patch used token patterns like "{integer}{ident_start}", which is problematic because {ident_start} matches only a single byte. If the first character after the integer is a multibyte character, this ends up with flex reporting an error message that includes a partial multibyte character. That can cause assorted bad-encoding problems downstream, both in the report to the client and in the postmaster log file. To fix, use {identifier} not {ident_start} in the "junk" token patterns, so that they will match complete multibyte characters. This seems generally better user experience quite aside from the encoding problem: for "123abc" the error message will now say that the error appeared at or near "123abc" instead of "123a". While at it, add some commentary about why these patterns exist and how they work. Report and patch by Karina Litskevich; review by Pavel Borisov. Back-patch to v15 where the problem came in. Discussion: https://postgr.es/m/CACiT8iZ_diop=0zJ7zuY3BXegJpkKK1Av-PU7xh0EDYHsa5+=g@mail.gmail.com		1 year ago
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ecpg	Prevent mis-encoding of "trailing junk after numeric literal" errors.	1 year ago
libpq	Translation updates	1 year ago
Makefile	…