postgresql/contrib/btree_gist/sql/macaddr8.sql
Stephen Frost c7a9fa399d Add support for EUI-64 MAC addresses as macaddr8
This adds in support for EUI-64 MAC addresses by adding a new data type
called 'macaddr8' (using our usual convention of indicating the number
of bytes stored).

This was largely a copy-and-paste from the macaddr data type, with
appropriate adjustments for having 8 bytes instead of 6 and adding
support for converting a provided EUI-48 (6 byte format) to the EUI-64
format.  Conversion from EUI-48 to EUI-64 inserts FFFE as the 4th and
5th bytes but does not perform the IPv6 modified EUI-64 action of
flipping the 7th bit, but we add a function to perform that specific
action for the user as it may be commonly done by users who wish to
calculate their IPv6 address based on their network prefix and 48-bit
MAC address.

Author: Haribabu Kommi, with a good bit of rework of macaddr8_in by me.
Reviewed by: Vitaly Burovoy, Kuntal Ghosh

Discussion: https://postgr.es/m/CAJrrPGcUi8ZH+KkK+=TctNQ+EfkeCEHtMU_yo1mvX8hsk_ghNQ@mail.gmail.com
2017-03-15 11:16:25 -04:00

38 lines
1.1 KiB
SQL

-- macaddr check
CREATE TABLE macaddr8tmp (a macaddr8);
\copy macaddr8tmp from 'data/macaddr.data'
SET enable_seqscan=on;
SELECT count(*) FROM macaddr8tmp WHERE a < '22:00:5c:e5:9b:0d';
SELECT count(*) FROM macaddr8tmp WHERE a <= '22:00:5c:e5:9b:0d';
SELECT count(*) FROM macaddr8tmp WHERE a = '22:00:5c:e5:9b:0d';
SELECT count(*) FROM macaddr8tmp WHERE a >= '22:00:5c:e5:9b:0d';
SELECT count(*) FROM macaddr8tmp WHERE a > '22:00:5c:e5:9b:0d';
CREATE INDEX macaddr8idx ON macaddr8tmp USING gist ( a );
SET enable_seqscan=off;
SELECT count(*) FROM macaddr8tmp WHERE a < '22:00:5c:e5:9b:0d'::macaddr8;
SELECT count(*) FROM macaddr8tmp WHERE a <= '22:00:5c:e5:9b:0d'::macaddr8;
SELECT count(*) FROM macaddr8tmp WHERE a = '22:00:5c:e5:9b:0d'::macaddr8;
SELECT count(*) FROM macaddr8tmp WHERE a >= '22:00:5c:e5:9b:0d'::macaddr8;
SELECT count(*) FROM macaddr8tmp WHERE a > '22:00:5c:e5:9b:0d'::macaddr8;
-- Test index-only scans
SET enable_bitmapscan=off;
EXPLAIN (COSTS OFF)
SELECT * FROM macaddr8tmp WHERE a < '02:03:04:05:06:07'::macaddr8;
SELECT * FROM macaddr8tmp WHERE a < '02:03:04:05:06:07'::macaddr8;