Add functions gcd() and lcm() for integer and numeric types. These compute the greatest common divisor and least common multiple of a pair of numbers using the Euclidean algorithm. Vik Fearing, reviewed by Fabien Coelho. Discussion: https://postgr.es/m/adbd3e0b-e3f1-5bbc-21db-03caf1cef0f7@2ndquadrant.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/13661ddd7eaec7e2809ff5c29fc14653b6161036 Modified Files -------------- doc/src/sgml/func.sgml | 34 +++++++ src/backend/utils/adt/int.c | 126 +++++++++++++++++++++++++ src/backend/utils/adt/int8.c | 126 +++++++++++++++++++++++++ src/backend/utils/adt/numeric.c | 171 ++++++++++++++++++++++++++++++++++ src/include/catalog/catversion.h | 2 +- src/include/catalog/pg_proc.dat | 20 ++++ src/test/regress/expected/int4.out | 46 +++++++++ src/test/regress/expected/int8.out | 46 +++++++++ src/test/regress/expected/numeric.out | 44 +++++++++ src/test/regress/sql/int4.sql | 25 +++++ src/test/regress/sql/int8.sql | 25 +++++ src/test/regress/sql/numeric.sql | 25 +++++ 12 files changed, 689 insertions(+), 1 deletion(-)
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