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37 lines
1.3 KiB
SQL
37 lines
1.3 KiB
SQL
--
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-- Track category inclusions *used inline*
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-- This tracks a single level of category membership
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-- (folksonomic tagging, really).
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--
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CREATE TABLE /*$wgDBprefix*/categorylinks (
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-- Key to page_id of the page defined as a category member.
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cl_from int unsigned NOT NULL default '0',
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-- Name of the category.
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-- This is also the page_title of the category's description page;
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-- all such pages are in namespace 14 (NS_CATEGORY).
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cl_to varchar(255) binary NOT NULL default '',
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-- The title of the linking page, or an optional override
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-- to determine sort order. Sorting is by binary order, which
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-- isn't always ideal, but collations seem to be an exciting
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-- and dangerous new world in MySQL...
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--
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-- Truncate so that the cl_sortkey key fits in 1000 bytes
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-- (MyISAM 5 with server_character_set=utf8)
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cl_sortkey varchar(70) binary NOT NULL default '',
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-- This isn't really used at present. Provided for an optional
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-- sorting method by approximate addition time.
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cl_timestamp timestamp NOT NULL,
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UNIQUE KEY cl_from(cl_from,cl_to),
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-- This key is trouble. It's incomplete, AND it's too big
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-- when collation is set to UTF-8. Bleeeacch!
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KEY cl_sortkey(cl_to,cl_sortkey),
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-- Not really used?
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KEY cl_timestamp(cl_to,cl_timestamp)
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) /*$wgDBTableOptions*/;
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