postgresql/contrib/datetime/datetime_functions.sql
1996-08-18 22:14:33 +00:00

70 lines
1.5 KiB
SQL

-- SQL code to load and define 'datetime' functions
-- load the new functions
load '/home/dz/lib/postgres/datetime_functions.so';
-- define the new functions in postgres
create function time_difference(time,time)
returns time
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function currentDate()
returns date
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function currentTime()
returns time
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function hours(time)
returns int4
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function minutes(time)
returns int4
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function seconds(time)
returns int4
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function day(date)
returns int4
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function month(date)
returns int4
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function year(date)
returns int4
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function asMinutes(time)
returns int4
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create function asSeconds(time)
returns int4
as '/home/dz/lib/postgres/datetime_functions.so'
language 'c';
create operator - (
leftarg=time,
rightarg=time,
procedure=time_difference);