| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Detect overflow in timestamp[tz] subtraction. |
| Date: | 2023-02-20 22:26:34 |
| Message-ID: | E1pUEcD-0029lO-NP@gemulon.postgresql.org |
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| Thread: | |
| Lists: | pgsql-committers |
Detect overflow in timestamp[tz] subtraction.
It's possible to overflow the int64 microseconds field of the
output interval when subtracting two timestamps. Detect that
instead of silently returning a bogus result.
Nick Babadzhanian
Discussion: https://postgr.es/m/CABw73Uq2oJ3E+kYvvDuY04EkhhkChim2e-PaghBDjOmgUAMWGw@mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/8028e294b456bf1539649527fd98b3985fa4752a
Modified Files
--------------
src/backend/utils/adt/timestamp.c | 5 ++++-
src/test/regress/expected/timestamp.out | 9 +++++++++
src/test/regress/expected/timestamptz.out | 9 +++++++++
src/test/regress/sql/timestamp.sql | 4 ++++
src/test/regress/sql/timestamptz.sql | 4 ++++
5 files changed, 30 insertions(+), 1 deletion(-)
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