Today I noticed strange behaviour, consider the following test:
postgres@126111=#create table foo ( a text );
CREATE TABLE
postgres@126111=#insert into foo values ( repeat('PostgreSQL is the
world''s best database and leading by an Open Source Community.', 8000));
INSERT 0 1
postgres@126111=#select substring(a from 639921 for 81) from foo;
substring
-----------
(1 row)
Before below commit:
commit 540f31680913b4e11f2caa40cafeca269cfcb22f
Author: Tomas Vondra <tomas.von...@postgresql.org>
Date: Tue Oct 1 16:53:04 2019 +0200
Blind attempt to fix pglz_maximum_compressed_size
Commit 11a078cf87 triggered failures on big-endian machines, and the
only plausible place for an issue seems to be that TOAST_COMPRESS_SIZE
calls VARSIZE instead of VARSIZE_ANY. So try fixing that blindly.
Discussion:
https://www.postgresql.org/message-id/20191001131803.j6uin7nho7t6vxzy%40development
postgres@75761=#select substring(a from 639921 for 81) from foo;
substring
----------------------------------------------------------------------------------
PostgreSQL is the world's best database and leading by an Open Source
Community.
(1 row)
