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annotate db/pubsub.sql @ 206:274a45d2a5ab

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Implement root collection that includes all leaf nodes.
author Ralph Meijer <ralphm@ik.nu>
date Mon, 04 Aug 2008 13:47:10 +0000
parents a5d267289e92
children 70c8bb90d75f
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1 CREATE TABLE entities (
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2 entity_id serial PRIMARY KEY,
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3 jid text NOT NULL UNIQUE
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4 );
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6 CREATE TABLE nodes (
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7 node_id serial PRIMARY KEY,
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8 node text NOT NULL UNIQUE,
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9 node_type text NOT NULL DEFAULT 'leaf'
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10 CHECK (node_type IN ('leaf', 'collection')),
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11 persist_items boolean,
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12 deliver_payloads boolean NOT NULL DEFAULT TRUE,
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13 send_last_published_item text NOT NULL DEFAULT 'on_sub'
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14 CHECK (send_last_published_item IN ('never', 'on_sub'))
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15 );
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17 INSERT INTO nodes (node, node_type) values ('', 'collection');
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18
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19 CREATE TABLE affiliations (
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20 affiliation_id serial PRIMARY KEY,
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21 entity_id integer NOT NULL REFERENCES entities ON DELETE CASCADE,
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22 node_id integer NOT NULL references nodes ON DELETE CASCADE,
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23 affiliation text NOT NULL
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24 CHECK (affiliation IN ('outcast', 'publisher', 'owner')),
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25 UNIQUE (entity_id, node_id)
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26 );
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28 CREATE TABLE subscriptions (
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29 subscription_id serial PRIMARY KEY,
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30 entity_id integer NOT NULL REFERENCES entities ON DELETE CASCADE,
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31 resource text,
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32 node_id integer NOT NULL REFERENCES nodes ON delete CASCADE,
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33 state text NOT NULL DEFAULT 'subscribed'
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34 CHECK (state IN ('subscribed', 'pending', 'unconfigured')),
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35 subscription_type text
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36 CHECK (subscription_type IN (NULL, 'items', 'nodes')),
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37 subscription_depth text
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38 CHECK (subscription_depth IN (NULL, '1', 'all')),
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39 UNIQUE (entity_id, resource, node_id));
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41 CREATE TABLE items (
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42 item_id serial PRIMARY KEY,
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43 node_id integer NOT NULL REFERENCES nodes ON DELETE CASCADE,
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44 item text NOT NULL,
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45 publisher text NOT NULL,
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46 data text,
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47 date timestamp with time zone NOT NULL DEFAULT now(),
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48 UNIQUE (node_id, item)
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49 );