sql/sqlite/revtag.sql
CREATE TABLE /*_*/revtag (
rt_type BLOB NOT NULL,
rt_page BIGINT UNSIGNED NOT NULL,
rt_revision BIGINT UNSIGNED NOT NULL,
rt_value BLOB DEFAULT NULL,
PRIMARY KEY(rt_type, rt_page, rt_revision)
);
CREATE INDEX rt_revision_type ON /*_*/revtag (rt_revision, rt_type);