pgsql: Add overflow checks to money type. - Mailing list pgsql-committers

From Nathan Bossart
Subject pgsql: Add overflow checks to money type.
Date
Msg-id E1sUqtJ-000I11-WB@gemulon.postgresql.org
Whole thread Raw
List pgsql-committers
Add overflow checks to money type.

None of the arithmetic functions for the the money type handle
overflow.  This commit introduces several helper functions with
overflow checking and makes use of them in the money type's
arithmetic functions.

Fixes bug #18240.

Reported-by: Alexander Lakhin
Author: Joseph Koshakow
Discussion: https://postgr.es/m/18240-c5da758d7dc1ecf0%40postgresql.org
Discussion: https://postgr.es/m/CAAvxfHdBPOyEGS7s%2Bxf4iaW0-cgiq25jpYdWBqQqvLtLe_t6tw%40mail.gmail.com
Backpatch-through: 12

Branch
------
REL_13_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/c5321e9651c5a9306ffe0d4488a0bb3607534920

Modified Files
--------------
src/backend/utils/adt/cash.c        | 174 +++++++++++++++++++-----------------
src/test/regress/expected/money.out |  19 ++++
src/test/regress/sql/money.sql      |  11 +++
3 files changed, 124 insertions(+), 80 deletions(-)


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