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c7a9fa399d
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
65 lines
1.9 KiB
SQL
65 lines
1.9 KiB
SQL
/* contrib/btree_gist/btree_gist--1.3--1.4.sql */
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-- complain if script is sourced in psql, rather than via ALTER EXTENSION
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\echo Use "ALTER EXTENSION btree_gist UPDATE TO '1.4'" to load this file. \quit
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-- Add support for indexing macaddr8 columns
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-- define the GiST support methods
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CREATE FUNCTION gbt_macad8_consistent(internal,macaddr8,int2,oid,internal)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gbt_macad8_compress(internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gbt_macad8_fetch(internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gbt_macad8_penalty(internal,internal,internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gbt_macad8_picksplit(internal, internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gbt_macad8_union(internal, internal)
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RETURNS gbtreekey16
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION gbt_macad8_same(gbtreekey16, gbtreekey16, internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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-- Create the operator class
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CREATE OPERATOR CLASS gist_macaddr8_ops
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DEFAULT FOR TYPE macaddr8 USING gist
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AS
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OPERATOR 1 < ,
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OPERATOR 2 <= ,
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OPERATOR 3 = ,
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OPERATOR 4 >= ,
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OPERATOR 5 > ,
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FUNCTION 1 gbt_macad8_consistent (internal, macaddr8, int2, oid, internal),
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FUNCTION 2 gbt_macad8_union (internal, internal),
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FUNCTION 3 gbt_macad8_compress (internal),
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FUNCTION 4 gbt_decompress (internal),
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FUNCTION 5 gbt_macad8_penalty (internal, internal, internal),
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FUNCTION 6 gbt_macad8_picksplit (internal, internal),
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FUNCTION 7 gbt_macad8_same (gbtreekey16, gbtreekey16, internal),
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STORAGE gbtreekey16;
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ALTER OPERATOR FAMILY gist_macaddr8_ops USING gist ADD
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OPERATOR 6 <> (macaddr8, macaddr8) ,
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FUNCTION 9 (macaddr8, macaddr8) gbt_macad8_fetch (internal);
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