add random timestamp in interval

deploy/random/timestamp-in-interval.sql

+-- Deploy 0814-utils:random/timestamp-in-interval to pg
+
+BEGIN;
+
+\ir ../../defaults.sql
+
+create or replace function :"utils_schema".random_timestamp_in_interval(r tsrange)
+returns timestamp
+as $$
+  select lower(r) + random() * (upper(r) - lower(r));
+$$
+language sql
+strict
+volatile 
+parallel safe;
+
+COMMIT;

deploy/random/timestamptz-in-interval.sql

+-- Deploy 0814-utils:random/timestamptz-in-interval to pg
+
+BEGIN;
+
+\ir ../../defaults.sql
+
+create or replace function :"utils_schema".random_timestamp_in_interval(r tstzrange)
+returns timestamptz
+as $$
+  select lower(r) + random() * (upper(r) - lower(r));
+$$
+language sql
+strict
+volatile 
+parallel safe;
+
+COMMIT;

revert/random/timestamp-in-interval.sql

+-- Revert 0814-utils:random/timestamp-in-interval from pg
+
+BEGIN;
+
+\ir ../../defaults.sql
+
+drop function :"utils_schema".random_timestamp_in_interval(tsrange);
+
+COMMIT;

revert/random/timestamptz-in-interval.sql

+-- Revert 0814-utils:random/timestamptz-in-interval from pg
+
+BEGIN;
+
+\ir ../../defaults.sql
+
+drop function :"utils_schema".random_timestamp_in_interval(tstzrange);
+
+COMMIT;

sqitch.plan

@@ -14,3 +14,5 @@ array-greatest 2022-03-15T16:03:24Z Timo Stolz <timo.stolz@nullachtvierzehn.de>
 array-least 2022-03-15T16:04:42Z Timo Stolz <timo.stolz@nullachtvierzehn.de> # get greatest element of array
 owns-table 2022-03-16T08:50:13Z Timo Stolz <timo.stolz@nullachtvierzehn.de> # owns_table(table[, owner])
 can-bypass-rls 2022-03-16T09:22:55Z Timo Stolz <timo.stolz@nullachtvierzehn.de> # add can_bypass_rls(user)
+random/timestamp-in-interval 2022-03-25T13:17:46Z Timo Stolz <timo.stolz@nullachtvierzehn.de> # get random timestamp from interval
+random/timestamptz-in-interval 2022-03-25T13:21:32Z Timo Stolz <timo.stolz@nullachtvierzehn.de> # get random timestamp with timezone

verify/random/timestamp-in-interval.sql

+-- Verify 0814-utils:random/timestamp-in-interval on pg
+
+BEGIN;
+
+-- XXX Add verifications here.
+
+ROLLBACK;

verify/random/timestamptz-in-interval.sql

+-- Verify 0814-utils:random/timestamptz-in-interval on pg
+
+BEGIN;
+
+-- XXX Add verifications here.
+
+ROLLBACK;