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isn's weak mode used to be a simple static variable, settable only
via the isn_weak(boolean) function. This wasn't optimal, as this
means it doesn't respect transactions nor respond to RESET ALL.
This patch makes isn.weak a GUC parameter instead, so that
it acts like any other user-settable parameter.
The isn_weak() functions are retained for backwards compatibility.
But we must fix their volatility markings: they were marked IMMUTABLE
which is surely incorrect, and PARALLEL RESTRICTED which isn't right
for GUC-related functions either. Mark isn_weak(boolean) as
VOLATILE and PARALLEL UNSAFE, matching set_config(). Mark isn_weak()
as STABLE and PARALLEL SAFE, matching current_setting().
Reported-by: Viktor Holmberg <v@viktorh.net>
Diagnosed-by: Daniel Gustafsson <daniel@yesql.se>
Author: Viktor Holmberg <v@viktorh.net>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/790bc1f9-74dc-4b50-94d2-8147315b1556@Spark
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pg_input_error_info() is now a SQL function able to return a row with
more than just the error message generated for incorrect data type
inputs when these are able to handle soft failures, returning more
contents of ErrorData, as of:
- The error message (same as before).
- The error detail, if set.
- The error hint, if set.
- SQL error code.
All the regression tests that relied on pg_input_error_message() are
updated to reflect the effects of the rename.
Per discussion with Tom Lane and Andrew Dunstan.
Author: Nathan Bossart
Discussion: https://postgr.es/m/139a68e1-bd1f-a9a7-b5fe-0be9845c6311@dunslane.net
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I'd supposed that people would do this manually when creating new operator
classes, but the folly of that was exposed today. The tests seem fast
enough that we can just apply them during the normal regression tests.
contrib/isn fails the checks for lack of complete sets of cross-type
operators. That's a nice-to-have policy rather than a functional
requirement, so leave it as-is, but insert ORDER BY in the query to
ensure consistent cross-platform output.
Discussion: https://postgr.es/m/7076.1480446837@sss.pgh.pa.us
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An EAN beginning with 979 (but not 9790 - those are ISMN's) are accepted
as ISBN numbers, but they cannot be represented in the old, 10-digit ISBN
format. They must be output in the new 13-digit ISBN-13 format. We printed
out an incorrect value for those.
Also add a regression test, to test this and some other basic functionality
of the module.
Patch by Fabien Coelho. This fixes bug #13442, reported by B.Z. Backpatch
to 9.1, where we started to recognize ISBN-13 numbers.
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