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--
-- Every time an edit by a logged out user is saved,
-- a row is created in ip_changes. This stores
-- the IP as a hex representation so that we can more
-- easily find edits within an IP range.
--
CREATE TABLE /*_*/ip_changes (
-- Foreign key to the revision table, also serves as the unique primary key
ipc_rev_id int unsigned NOT NULL PRIMARY KEY DEFAULT '0',
-- The timestamp of the revision
ipc_rev_timestamp binary(14) NOT NULL DEFAULT '',
-- Hex representation of the IP address, as returned by IP::toHex()
-- For IPv4 it will resemble: ABCD1234
-- For IPv6: v6-ABCD1234000000000000000000000000
-- BETWEEN is then used to identify revisions within a given range
ipc_hex varbinary(35) NOT NULL DEFAULT ''
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/ipc_rev_timestamp ON /*_*/ip_changes (ipc_rev_timestamp);
CREATE INDEX /*i*/ipc_hex_time ON /*_*/ip_changes (ipc_hex,ipc_rev_timestamp);
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