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|
pg_rrule
========
Usage
Get RRULE parameter get_PARAMNAME.
Example. Get freq param:
```sql
SELECT get_freq('FREQ=WEEKLY;INTERVAL=1;WKST=MO;UNTIL=20200101T045102Z'::rrule);
get_freq
----------
WEEKLY
(1 row)
```
Example. Get byday param:
```sql
SELECT get_byday('FREQ=WEEKLY;INTERVAL=1;WKST=MO;UNTIL=20200101T045102Z;BYDAY=MO,TH,SU'::rrule);
get_byday
-----------
{2,5,1}
(1 row)
```
Example. Expand RRULE with timezone:
```sql
SELECT * FROM
unnest(
get_occurrences('FREQ=WEEKLY;INTERVAL=1;WKST=MO;UNTIL=20200101T045102Z;BYDAY=SA;BYHOUR=10;BYMINUTE=51;BYSECOND=2'::rrule,
'2019-12-07 10:51:02+00'::timestamp with time zone)
);
unnest
------------------------
2019-12-07 10:51:02+00
2019-12-14 10:51:02+00
2019-12-21 10:51:02+00
2019-12-28 10:51:02+00
(4 rows)
```
Example. Expand RRULE without timezone:
```sql
SELECT * FROM
unnest(
get_occurrences('FREQ=WEEKLY;INTERVAL=1;WKST=MO;UNTIL=20200101T045102Z;BYDAY=SA;BYHOUR=10;BYMINUTE=51;BYSECOND=2'::rrule,
'2019-12-07 10:51:02'::timestamp)
);
unnest
---------------------
2019-12-07 10:51:02
2019-12-14 10:51:02
2019-12-21 10:51:02
2019-12-28 10:51:02
(4 rows)
```
Simple building:
--------
```sh
cd src/
qmake pg_rrule.pro
make
```
Simple install (Linux):
```sh
cp libpg_rrule.so /usr/lib/postgresql/pg_rrule.so
cp pg_rrule.control /usr/share/postgresql/extension/
cp sql/pg_rrule.sql /usr/share/postgresql/extension/pg_rrule--0.2.0.sql
```
Simple install (OS X):
```sh
#TODO
```
Install extension (Postgresql):
```sql
CREATE EXTENSION pg_rrule;
```
Building (A long description (not tested))
To build it, just do this:
make
make installcheck
make install
If you encounter an error such as:
"Makefile", line 8: Need an operator
You need to use GNU make, which may well be installed on your system as
`gmake`:
gmake
gmake install
gmake installcheck
If you encounter an error such as:
make: pg_config: Command not found
Be sure that you have `pg_config` installed and in your path. If you used a
package management system such as RPM to install PostgreSQL, be sure that the
`-devel` package is also installed. If necessary tell the build process where
to find it:
env PG_CONFIG=/path/to/pg_config make && make installcheck && make install
And finally, if all that fails (and if you're on PostgreSQL 8.1 or lower, it
likely will), copy the entire distribution directory to the `contrib/`
subdirectory of the PostgreSQL source tree and try it there without
`pg_config`:
env NO_PGXS=1 make && make installcheck && make install
If you encounter an error such as:
ERROR: must be owner of database regression
You need to run the test suite using a super user, such as the default
"postgres" super user:
make installcheck PGUSER=postgres
Once pg_rrule is installed, you can add it to a database. If you're running
PostgreSQL 9.1.0 or greater, it's a simple as connecting to a database as a
super user and running:
CREATE EXTENSION pg_rrule;
If you've upgraded your cluster to PostgreSQL 9.1 and already had pg_rrule
installed, you can upgrade it to a properly packaged extension with:
CREATE EXTENSION pg_rrule FROM unpackaged;
For versions of PostgreSQL less than 9.1.0, you'll need to run the
installation script:
psql -d mydb -f /path/to/pgsql/share/contrib/pg_rrule.sql
If you want to install pg_rrule and all of its supporting objects into a specific
schema, use the `PGOPTIONS` environment variable to specify the schema, like
so:
PGOPTIONS=--search_path=extensions psql -d mydb -f pg_rrule.sql
Dependencies
------------
The `pg_rrule` has libical as dependency.
Copyright and License
---------------------
Copyright (c) 2014 petropavel.
|
