pgsql: Allow DateTimeParseError to handle bad-timezone error messages. - Mailing list pgsql-committers

From Tom Lane
Subject pgsql: Allow DateTimeParseError to handle bad-timezone error messages.
Date
Msg-id E1p3i9A-002hlb-6i@gemulon.postgresql.org
Whole thread Raw
List pgsql-committers
Allow DateTimeParseError to handle bad-timezone error messages.

Pay down some ancient technical debt (dating to commit 022fd9966):
fix a couple of places in datetime parsing that were throwing
ereport's immediately instead of returning a DTERR code that could be
interpreted by DateTimeParseError.  The reason for that was that there
was no mechanism for passing any auxiliary data (such as a zone name)
to DateTimeParseError, and these errors seemed to really need it.
Up to now it didn't matter that much just where the error got thrown,
but now we'd like to have a hard policy that datetime parse errors
get thrown from just the one place.

Hence, invent a "DateTimeErrorExtra" struct that can be used to
carry any extra values needed for specific DTERR codes.  Perhaps
in the future somebody will be motivated to use this to improve
the specificity of other DateTimeParseError messages, but for now
just deal with the timezone-error cases.

This is on the way to making the datetime input functions report
parse errors softly; but it's really an independent change, so
commit separately.

Discussion: https://postgr.es/m/3bbbb0df-7382-bf87-9737-340ba096e034@postgrespro.ru

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/2661469d862239ea8b9e3a1cf5352d833f6f0fec

Modified Files
--------------
contrib/adminpack/adminpack.c             |   4 +-
src/backend/access/transam/xlogrecovery.c |   4 +-
src/backend/utils/adt/date.c              |  28 ++++---
src/backend/utils/adt/datetime.c          | 124 +++++++++++++++++++-----------
src/backend/utils/adt/formatting.c        |  20 +++--
src/backend/utils/adt/timestamp.c         |  54 +++++++++----
src/include/utils/datetime.h              |  32 +++++---
7 files changed, 176 insertions(+), 90 deletions(-)


pgsql-committers by date:

Previous
From: Andres Freund
Date:
Subject: pgsql: meson: Improve PG_VERSION_STR generation
Next
From: Tom Lane
Date:
Subject: pgsql: Convert datetime input functions to use "soft" error reporting.