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13661ddd

Commit 13661ddd authored 5 years ago by Dean Rasheed

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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

parent 530609aa

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doc/src/sgml/func.sgml 34 additions, 0 deletions

doc/src/sgml/func.sgml
src/backend/utils/adt/int.c 126 additions, 0 deletions

src/backend/utils/adt/int.c
src/backend/utils/adt/int8.c 126 additions, 0 deletions

src/backend/utils/adt/int8.c
src/backend/utils/adt/numeric.c 171 additions, 0 deletions

src/backend/utils/adt/numeric.c
src/include/catalog/catversion.h 1 addition, 1 deletion

src/include/catalog/catversion.h
src/include/catalog/pg_proc.dat 20 additions, 0 deletions

src/include/catalog/pg_proc.dat
src/test/regress/expected/int4.out 46 additions, 0 deletions

src/test/regress/expected/int4.out
src/test/regress/expected/int8.out 46 additions, 0 deletions

src/test/regress/expected/int8.out
src/test/regress/expected/numeric.out 44 additions, 0 deletions

src/test/regress/expected/numeric.out
src/test/regress/sql/int4.sql 25 additions, 0 deletions

src/test/regress/sql/int4.sql
src/test/regress/sql/int8.sql 25 additions, 0 deletions

src/test/regress/sql/int8.sql
src/test/regress/sql/numeric.sql 25 additions, 0 deletions

src/test/regress/sql/numeric.sql

with 689 additions and 1 deletion

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