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davical/dba/patches/1.2.6.sql
“Paul 931651ca32 Remove quoted SQL language identifiers
2014-09-02 20:01:28 +02:00

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PL/PgSQL
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-- This database update converts the permissions into a bitmap stored
-- as an integer to make calculation of merged permissions simpler
-- through simple binary 'AND'
CREATE or REPLACE FUNCTION legacy_privilege_to_bits( TEXT ) RETURNS BIT(24) AS $$
DECLARE
in_priv ALIAS FOR $1;
out_bits BIT(24);
BEGIN
out_bits := 0::BIT(24);
IF in_priv ~* 'A' THEN
out_bits = ~ out_bits;
RETURN out_bits;
END IF;
-- The CALDAV:read-free-busy privilege MUST be aggregated in the DAV:read privilege.
-- 1 DAV:read
-- 512 CalDAV:read-free-busy
-- 4096 CALDAV:schedule-query-freebusy
IF in_priv ~* 'R' THEN
out_bits := out_bits | 4609::BIT(24);
END IF;
-- DAV:write => DAV:write MUST contain DAV:bind, DAV:unbind, DAV:write-properties and DAV:write-content
-- 2 DAV:write-properties
-- 4 DAV:write-content
-- 64 DAV:bind
-- 128 DAV:unbind
IF in_priv ~* 'W' THEN
out_bits := out_bits | 198::BIT(24);
END IF;
-- 64 DAV:bind
IF in_priv ~* 'B' THEN
out_bits := out_bits | 64::BIT(24);
END IF;
-- 128 DAV:unbind
IF in_priv ~* 'U' THEN
out_bits := out_bits | 128::BIT(24);
END IF;
-- 512 CalDAV:read-free-busy
-- 4096 CALDAV:schedule-query-freebusy
IF in_priv ~* 'F' THEN
out_bits := out_bits | 4608::BIT(24);
END IF;
RETURN out_bits;
END
$$
LANGUAGE plpgsql IMMUTABLE STRICT;
-- This legacy conversion function will eventually be removed, once all logic
-- has been converted to use bitmaps, or to use the bits_to_priv() output.
--
-- NOTE: Round-trip through this and then back through legacy_privilege_to_bits
-- function is lossy! Through legacy_privilege_to_bits() and back through
-- this one is not.
--
CREATE or REPLACE FUNCTION bits_to_legacy_privilege( BIT(24) ) RETURNS TEXT AS $$
DECLARE
in_bits ALIAS FOR $1;
out_priv TEXT;
BEGIN
out_priv := '';
IF in_bits = (~ 0::BIT(24)) THEN
out_priv = 'A';
RETURN out_priv;
END IF;
-- The CALDAV:read-free-busy privilege MUST be aggregated in the DAV:read privilege.
-- 1 DAV:read
-- 512 CalDAV:read-free-busy
-- 4096 CALDAV:schedule-query-freebusy
IF (in_bits & 4609::BIT(24)) != 0::BIT(24) THEN
IF (in_bits & 1::BIT(24)) != 0::BIT(24) THEN
out_priv := 'R';
ELSE
out_priv := 'F';
END IF;
END IF;
-- DAV:write => DAV:write MUST contain DAV:bind, DAV:unbind, DAV:write-properties and DAV:write-content
-- 2 DAV:write-properties
-- 4 DAV:write-content
-- 64 DAV:bind
-- 128 DAV:unbind
IF (in_bits & 198::BIT(24)) != 0::BIT(24) THEN
IF (in_bits & 6::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || 'W';
ELSE
IF (in_bits & 64::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || 'B';
END IF;
IF (in_bits & 128::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || 'U';
END IF;
END IF;
END IF;
RETURN out_priv;
END
$$
LANGUAGE plpgsql IMMUTABLE STRICT;
CREATE or REPLACE FUNCTION get_permissions( INT, INT ) RETURNS TEXT AS $$
DECLARE
in_from ALIAS FOR $1;
in_to ALIAS FOR $2;
out_confers TEXT;
bit_confers BIT(24);
group_role_no INT;
tmp_txt TEXT;
dbg TEXT DEFAULT '';
r RECORD;
counter INT;
BEGIN
-- Self can always have full access
IF in_from = in_to THEN
RETURN 'A';
END IF;
-- dbg := 'S-';
SELECT bits_to_legacy_privilege(r1.confers) INTO out_confers FROM relationship r1
WHERE r1.from_user = in_from AND r1.to_user = in_to AND NOT usr_is_role(r1.to_user,'Group');
IF FOUND THEN
RETURN dbg || out_confers;
END IF;
-- RAISE NOTICE 'No simple relationships between % and %', in_from, in_to;
SELECT bit_or(r1.confers & r2.confers) INTO bit_confers
FROM relationship r1
JOIN relationship r2 ON r1.to_user=r2.from_user
WHERE r1.from_user=in_from AND r2.to_user=in_to
AND r2.from_user IN (SELECT user_no FROM roles LEFT JOIN role_member USING(role_no) WHERE role_name='Group');
IF bit_confers != 0::BIT(24) THEN
RETURN dbg || bits_to_legacy_privilege(bit_confers);
END IF;
RETURN '';
-- RAISE NOTICE 'No complex relationships between % and %', in_from, in_to;
SELECT bits_to_legacy_privilege(r1.confers) INTO out_confers FROM relationship r1 LEFT OUTER JOIN relationship r2 ON(r1.to_user = r2.to_user)
WHERE r1.from_user = in_from AND r2.from_user = in_to AND r1.from_user != r2.from_user
AND NOT EXISTS( SELECT 1 FROM relationship r3 WHERE r3.from_user = r1.to_user ) ;
IF FOUND THEN
-- dbg := 'H-';
-- RAISE NOTICE 'Permissions to shared group % ', out_confers;
RETURN dbg || out_confers;
END IF;
-- RAISE NOTICE 'No common group relationships between % and %', in_from, in_to;
RETURN '';
END;
$$ LANGUAGE plpgsql IMMUTABLE STRICT;
CREATE or REPLACE FUNCTION get_group_role_no() RETURNS INT AS $$
SELECT role_no FROM roles WHERE role_name = 'Group'
$$ LANGUAGE sql IMMUTABLE;
CREATE or REPLACE FUNCTION has_legacy_privilege( INT, TEXT, INT ) RETURNS BOOLEAN AS $$
DECLARE
in_from ALIAS FOR $1;
in_legacy_privilege ALIAS FOR $2;
in_to ALIAS FOR $3;
in_confers BIT(24);
group_role_no INT;
BEGIN
-- Self can always have full access
IF in_from = in_to THEN
RETURN TRUE;
END IF;
SELECT get_group_role_no() INTO group_role_no;
SELECT legacy_privilege_to_bits(in_legacy_privilege) INTO in_confers;
IF EXISTS(SELECT 1 FROM relationship WHERE from_user = in_from AND to_user = in_to
AND (in_confers & confers) = in_confers
AND NOT EXISTS(SELECT 1 FROM role_member WHERE to_user = user_no AND role_no = group_role_no) ) THEN
-- A direct relationship from A to B that grants sufficient
-- RAISE NOTICE 'Permissions directly granted';
RETURN TRUE;
END IF;
IF EXISTS( SELECT 1 FROM relationship r1 JOIN relationship r2 ON r1.to_user=r2.from_user
WHERE (in_confers & r1.confers & r2.confers) = in_confers
AND r1.from_user=in_from AND r2.to_user=in_to
AND r2.from_user IN (SELECT user_no FROM role_member WHERE role_no=group_role_no) ) THEN
-- An indirect relationship from A to B via group G that grants sufficient
-- RAISE NOTICE 'Permissions mediated via group';
RETURN TRUE;
END IF;
IF EXISTS( SELECT 1 FROM relationship r1 JOIN relationship r2 ON r1.to_user=r2.to_user
WHERE (in_confers & r1.confers & r2.confers) = in_confers
AND r1.from_user=in_from AND r2.from_user=in_to
AND r2.to_user IN (SELECT user_no FROM role_member WHERE role_no=group_role_no)
AND NOT EXISTS(SELECT 1 FROM relationship WHERE from_user=r2.to_user) ) THEN
-- An indirect reflexive relationship from both A & B to group G which grants sufficient
-- RAISE NOTICE 'Permissions to shared group';
RETURN TRUE;
END IF;
-- RAISE NOTICE 'No common group relationships between % and %', in_from, in_to;
RETURN FALSE;
END;
$$ LANGUAGE plpgsql IMMUTABLE STRICT;
-- Given a verbose DAV: or CalDAV: privilege name return the bitmask
CREATE or REPLACE FUNCTION privilege_to_bits( TEXT ) RETURNS BIT(24) AS $$
DECLARE
raw_priv ALIAS FOR $1;
in_priv TEXT;
BEGIN
in_priv := trim(lower(regexp_replace(raw_priv, '^.*:', '')));
IF in_priv = 'all' THEN
RETURN ~ 0::BIT(24);
END IF;
RETURN (CASE
WHEN in_priv = 'read' THEN 1
WHEN in_priv = 'write' THEN 198 -- 2 + 4 + 64 + 128
WHEN in_priv = 'write-properties' THEN 2
WHEN in_priv = 'write-content' THEN 4
WHEN in_priv = 'unlock' THEN 8
WHEN in_priv = 'read-acl' THEN 16
WHEN in_priv = 'read-current-user-privilege-set' THEN 32
WHEN in_priv = 'bind' THEN 64
WHEN in_priv = 'unbind' THEN 128
WHEN in_priv = 'write-acl' THEN 256
WHEN in_priv = 'read-free-busy' THEN 512
WHEN in_priv = 'schedule-deliver' THEN 7168 -- 1024 + 2048 + 4096
WHEN in_priv = 'schedule-deliver-invite' THEN 1024
WHEN in_priv = 'schedule-deliver-reply' THEN 2048
WHEN in_priv = 'schedule-query-freebusy' THEN 4096
WHEN in_priv = 'schedule-send' THEN 57344 -- 8192 + 16384 + 32768
WHEN in_priv = 'schedule-send-invite' THEN 8192
WHEN in_priv = 'schedule-send-reply' THEN 16384
WHEN in_priv = 'schedule-send-freebusy' THEN 32768
ELSE 0 END)::BIT(24);
END
$$
LANGUAGE plpgsql IMMUTABLE STRICT;
-- Given an array of verbose DAV: or CalDAV: privilege names return the bitmask
CREATE or REPLACE FUNCTION privilege_to_bits( TEXT[] ) RETURNS BIT(24) AS $$
DECLARE
raw_privs ALIAS FOR $1;
in_priv TEXT;
out_bits BIT(24);
i INT;
all_privs BIT(24);
start INT;
finish INT;
BEGIN
out_bits := 0::BIT(24);
all_privs := ~ out_bits;
SELECT array_lower(raw_privs,1) INTO start;
SELECT array_upper(raw_privs,1) INTO finish;
FOR i IN start .. finish LOOP
SELECT out_bits | privilege_to_bits(raw_privs[i]) INTO out_bits;
IF out_bits = 65535::BIT(24) THEN
RETURN all_privs;
END IF;
END LOOP;
RETURN out_bits;
END
$$
LANGUAGE plpgsql IMMUTABLE STRICT;
-- This legacy conversion function will eventually be removed, once all logic
-- has been converted to use bitmaps, or to use the bits_to_priv() output.
--
-- NOTE: Round-trip through this and then back through privilege_to_bits
-- function is lossy! Through privilege_to_bits() and back through
-- this one is not.
--
CREATE or REPLACE FUNCTION bits_to_privilege( BIT(24) ) RETURNS TEXT[] AS $$
DECLARE
in_bits ALIAS FOR $1;
out_priv TEXT[];
BEGIN
IF in_bits = (~ 0::BIT(24)) THEN
out_priv := out_priv || ARRAY['DAV:all'];
END IF;
IF (in_bits & 513::BIT(24)) != 0::BIT(24) THEN
IF (in_bits & 1::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:read'];
END IF;
IF (in_bits & 512::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:read-free-busy'];
END IF;
END IF;
IF (in_bits & 198::BIT(24)) != 0::BIT(24) THEN
IF (in_bits & 198::BIT(24)) = 198::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:write'];
ELSE
IF (in_bits & 2::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:write-properties'];
END IF;
IF (in_bits & 4::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:write-content'];
END IF;
IF (in_bits & 64::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:bind'];
END IF;
IF (in_bits & 128::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:unbind'];
END IF;
END IF;
END IF;
IF (in_bits & 8::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:unlock'];
END IF;
IF (in_bits & 16::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:read-acl'];
END IF;
IF (in_bits & 32::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:read-current-user-privilege-set'];
END IF;
IF (in_bits & 256::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['DAV:write-acl'];
END IF;
IF (in_bits & 7168::BIT(24)) != 0::BIT(24) THEN
IF (in_bits & 7168::BIT(24)) = 7168::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:schedule-deliver'];
ELSE
IF (in_bits & 1024::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:schedule-deliver-invite'];
END IF;
IF (in_bits & 2048::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:schedule-deliver-reply'];
END IF;
IF (in_bits & 4096::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:schedule-query-freebusy'];
END IF;
END IF;
END IF;
IF (in_bits & 57344::BIT(24)) != 0::BIT(24) THEN
IF (in_bits & 57344::BIT(24)) = 57344::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:schedule-send'];
ELSE
IF (in_bits & 8192::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:schedule-send-invite'];
END IF;
IF (in_bits & 16384::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:schedule-send-reply'];
END IF;
IF (in_bits & 32768::BIT(24)) != 0::BIT(24) THEN
out_priv := out_priv || ARRAY['caldav:schedule-send-freebusy'];
END IF;
END IF;
END IF;
RETURN out_priv;
END
$$
LANGUAGE plpgsql IMMUTABLE STRICT;
BEGIN;
SELECT check_db_revision(1,2,5);
-- DAV Privileges implementation
--
-- RFC 3744 - DAV ACLs
-- 1 DAV:read
-- DAV:write (aggregate = 198 = write-properties & write-content & bind & unbind)
-- 2 DAV:write-properties
-- 4 DAV:write-content
-- 8 DAV:unlock
-- 16 DAV:read-acl
-- 32 DAV:read-current-user-privilege-set
-- 64 DAV:bind
-- 128 DAV:unbind
-- 256 DAV:write-acl
-- RFC 4791 - CalDAV
-- 512 CalDAV:read-free-busy
-- RFC ???? - Scheduling Extensions for CalDAV
-- CALDAV:schedule-deliver (aggregate) => 7168
-- 1024 CALDAV:schedule-deliver-invite
-- 2048 CALDAV:schedule-deliver-reply
-- 4096 CALDAV:schedule-query-freebusy
-- CALDAV:schedule-send (aggregate) => 57344
-- 8192 CALDAV:schedule-send-invite
-- 16384 CALDAV:schedule-send-reply
-- 32768 CALDAV:schedule-send-freebusy
-- RFC 3744 - DAV ACLs
-- DAV:all => all of the above and any new ones someone might invent!
-- DAV:read-acl MUST NOT contain DAV:read, DAV:write, DAV:write-acl, DAV:write-properties, DAV:write-content, or DAV:read-current-user-privilege-set.
-- DAV:write-acl MUST NOT contain DAV:write, DAV:read, DAV:read-acl, DAV:read-current-user-privilege-set.
-- DAV:read-current-user-privilege-set MUST NOT contain DAV:write, DAV:read, DAV:read-acl, or DAV:write-acl.
-- DAV:write MUST NOT contain DAV:read, DAV:read-acl, or DAV:read-current-user-privilege-set.
-- DAV:read MUST NOT contain DAV:write, DAV:write-acl, DAV:write-properties, or DAV:write-content.
-- DAV:write-acl COULD contain DAV:write-properties DAV:write-content DAV:unlock DAV:bind DAV:unbind BUT why would it?
-- DAV:write => DAV:bind, DAV:unbind, DAV:write-properties and DAV:write-content
-- RFC 4791 - CalDAV
-- The CALDAV:read-free-busy privilege MUST be aggregated in the DAV:read privilege.
-- RFC ???? - Scheduling Extensions for CalDAV
-- DAV:all MUST contain CALDAV:schedule-send and CALDAV:schedule-deliver
-- CALDAV:schedule-send MUST contain CALDAV:schedule-send-invite, CALDAV:schedule-send-reply, and CALDAV:schedule-send-freebusy;
-- CALDAV:schedule-deliver MUST contain CALDAV:schedule-deliver-invite, CALDAV:schedule-deliver-reply, and CALDAV:schedule-query-freebusy.
-- Me!!!
-- CalDAV:read-free-busy privilege SHOULD contain CALDAV:schedule-query-freebusy
-- => DAV:read privilege SHOULD contain CALDAV:schedule-query-freebusy
-- We do this outside of these privileges though.
-- This legacy conversion function will eventually be removed, once all logic
-- has been converted to use bitmaps, or to use the bits_to_priv() output.
CREATE or REPLACE FUNCTION legacy_privilege_to_bits( TEXT ) RETURNS BIT(24) AS $$
DECLARE
in_priv ALIAS FOR $1;
out_bits BIT(24);
BEGIN
out_bits := 0::BIT(24);
IF in_priv ~* 'A' THEN
out_bits = ~ out_bits;
RETURN out_bits;
END IF;
-- The CALDAV:read-free-busy privilege MUST be aggregated in the DAV:read privilege.
-- 1 DAV:read
-- 512 CalDAV:read-free-busy
-- 4096 CALDAV:schedule-query-freebusy
IF in_priv ~* 'R' THEN
out_bits := out_bits | 4609::BIT(24);
END IF;
-- DAV:write => DAV:write MUST contain DAV:bind, DAV:unbind, DAV:write-properties and DAV:write-content
-- 2 DAV:write-properties
-- 4 DAV:write-content
-- 64 DAV:bind
-- 128 DAV:unbind
IF in_priv ~* 'W' THEN
out_bits := out_bits | 198::BIT(24);
END IF;
-- 64 DAV:bind
IF in_priv ~* 'B' THEN
out_bits := out_bits | 64::BIT(24);
END IF;
-- 128 DAV:unbind
IF in_priv ~* 'U' THEN
out_bits := out_bits | 128::BIT(24);
END IF;
-- 512 CalDAV:read-free-busy
-- 4096 CALDAV:schedule-query-freebusy
IF in_priv ~* 'F' THEN
out_bits := out_bits | 4608::BIT(24);
END IF;
RETURN out_bits;
END
$$
LANGUAGE plpgsql IMMUTABLE STRICT;
ALTER TABLE relationship_type ADD COLUMN bit_confers BIT(24) DEFAULT privilege_to_bits(ARRAY['DAV::read','DAV::write']);
UPDATE relationship_type SET bit_confers = legacy_privilege_to_bits(confers);
ALTER TABLE relationship ADD COLUMN confers BIT(24) DEFAULT privilege_to_bits('caldav:read-free-busy');
UPDATE relationship SET confers = (SELECT bit_confers FROM relationship_type AS rt WHERE rt.rt_id=relationship.rt_id);
ALTER TABLE collection ADD COLUMN default_privileges BIT(24);
INSERT INTO principal_type (principal_type_id, principal_type_desc) VALUES( 1, 'Person' );
INSERT INTO principal_type (principal_type_id, principal_type_desc) VALUES( 2, 'Resource' );
INSERT INTO principal_type (principal_type_id, principal_type_desc) VALUES( 3, 'Group' );
-- web needs SELECT,INSERT,UPDATE,DELETE
DROP TABLE principal CASCADE;
CREATE TABLE principal (
principal_id INT8 DEFAULT nextval('dav_id_seq') PRIMARY KEY,
type_id INT8 NOT NULL REFERENCES principal_type(principal_type_id) ON UPDATE CASCADE ON DELETE RESTRICT DEFERRABLE,
user_no INT8 NULL REFERENCES usr(user_no) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE,
displayname TEXT,
default_privileges BIT(24)
);
INSERT INTO principal (type_id, user_no, displayname, default_privileges)
SELECT 1, user_no, fullname, privilege_to_bits(ARRAY['read-free-busy','schedule-send','schedule-deliver']) FROM usr
WHERE NOT EXISTS(SELECT 1 FROM role_member JOIN roles USING(role_no) WHERE role_name = 'Group' AND role_member.user_no = usr.user_no)
AND NOT EXISTS(SELECT 1 FROM role_member JOIN roles USING(role_no) WHERE role_name = 'Resource' AND role_member.user_no = usr.user_no) ;
INSERT INTO principal (type_id, user_no, displayname, default_privileges)
SELECT 2, user_no, fullname, privilege_to_bits(ARRAY['read','schedule-send','schedule-deliver']) FROM usr
WHERE EXISTS(SELECT 1 FROM role_member JOIN roles USING(role_no) WHERE role_name = 'Resource' AND role_member.user_no = usr.user_no);
INSERT INTO principal (type_id, user_no, displayname, default_privileges)
SELECT 3, user_no, fullname, privilege_to_bits(ARRAY['read-free-busy','schedule-send','schedule-deliver']) FROM usr
WHERE EXISTS(SELECT 1 FROM role_member JOIN roles USING(role_no) WHERE role_name = 'Group' AND role_member.user_no = usr.user_no);
UPDATE collection SET default_privileges = CASE
WHEN publicly_readable THEN privilege_to_bits(ARRAY['read'])
ELSE NULL
END;
INSERT INTO group_member ( group_id, member_id)
SELECT g.principal_id, m.principal_id
FROM relationship JOIN principal g ON(to_user=g.user_no AND g.type_id = 3) -- Group
JOIN principal m ON(from_user=m.user_no AND m.type_id IN (1, 2) ); -- Person or Resource
DROP TABLE dav_resource_type CASCADE;
DROP TABLE dav_resource CASCADE;
DROP TABLE privilege CASCADE;
CREATE TABLE grants (
by_principal INT8 REFERENCES principal(principal_id) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE,
by_collection INT8 REFERENCES collection(collection_id) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE,
to_principal INT8 REFERENCES principal(principal_id) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE,
privileges BIT(24),
is_group BOOLEAN
) WITHOUT OIDS;
CREATE UNIQUE INDEX grants_pk1 ON grants(by_principal,to_principal);
CREATE UNIQUE INDEX grants_pk2 ON grants(by_collection,to_principal);
INSERT INTO grants ( by_principal, to_principal, privileges, is_group )
SELECT pby.principal_id AS by_principal, pto.principal_id AS to_principal,
confers AS privileges, pto.type_id > 2 AS is_group
FROM relationship r JOIN usr f ON(f.user_no=r.from_user)
JOIN usr t ON(t.user_no=r.to_user)
JOIN principal pby ON(t.user_no=pby.user_no)
JOIN principal pto ON(pto.user_no=f.user_no)
WHERE rt_id < 4 AND pby.type_id < 3;
-- It's always safe to kill these collections, so they will be recreated with the correct resourcetype
DELETE FROM collection WHERE dav_name ~ E'/\.(in|out)/$';
SELECT new_db_revision(1,2,6, 'Juin' );
COMMIT;
ROLLBACK;
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