Horton

Re: BUG #16037: Assertion fails in varbit_out

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: exclusion@gmail.com, pgsql-bugs@lists.postgresql.org
Date: 2019-10-04T05:42:41Z
Lists: pgsql-bugs 
Hi,

On 2019-10-04 01:34:48 -0400, Tom Lane wrote:
> PG Bug reporting form <noreply@postgresql.org> writes:
> > The following query:
> > SELECT CAST(B'111111111111100000000' AS BIT VARYING(20)) >>8;
> > causes the FailedAssertion exception:
> 
> D'oh ... bitshiftright() needs to do the zero-pad-fixup in both
> code paths.  Will fix it tomorrow.

Does that suggest we shouldn't make the asserts active in the branches <
12?

Greetings,

Andres Freund

Commits

  1. Fix bitshiftright()'s zero-padding some more.