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annotate artifact-database/doc/schema-pg.sql @ 567:48d14cf857db 3.2.x

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Mention existing script in README
author Tom Gottfried <tom@intevation.de>
date Fri, 25 Feb 2022 14:53:32 +0100
parents 10aa92f2eca0
children
rev   line source
38
93edc04f3a10 Added postgresql support.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 --
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2 -- schema to store artifacts in PostgreSQL databases.
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3 --
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4
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5 BEGIN;
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6
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7 -- not using AUTO_INCREMENT to be more compatible with
93edc04f3a10 Added postgresql support.
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8 -- other dbms.
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9 CREATE SEQUENCE ARTIFACTS_ID_SEQ;
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10
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11 CREATE TABLE artifacts (
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12 id int PRIMARY KEY NOT NULL,
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13 gid uuid NOT NULL UNIQUE,
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14 creation timestamp NOT NULL,
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15 last_access timestamp NOT NULL,
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16 ttl bigint, -- NULL means eternal
41
5e4bc24ea438 Made serilization more flexible. DB update required!!!
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17 factory VARCHAR(256) NOT NULL,
38
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18 data bytea
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19 );
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20
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21 CREATE SEQUENCE USERS_ID_SEQ;
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22
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23 CREATE TABLE users (
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24 id int PRIMARY KEY NOT NULL,
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caf9f456f7e3 Added SQL statements to handle users in database.
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25 gid uuid NOT NULL UNIQUE,
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10aa92f2eca0 Add a account column to the users table
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26 name VARCHAR(256) NOT NULL,
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27 account VARCHAR(256) NOT NULL UNIQUE,
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face2302387c Insert collection attribute into database, too.
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28 role bytea
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29 );
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30
720d65bbba13 Extended db scheme to cope with collections, collection items and users.
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31 CREATE SEQUENCE COLLECTIONS_ID_SEQ;
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32
720d65bbba13 Extended db scheme to cope with collections, collection items and users.
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33 CREATE TABLE collections (
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34 id int PRIMARY KEY NOT NULL,
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35 gid uuid NOT NULL UNIQUE,
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36 name VARCHAR(256) NOT NULL,
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37 owner_id int NOT NULL REFERENCES users(id),
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38 creation timestamp NOT NULL,
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39 last_access timestamp NOT NULL,
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40 ttl bigint, -- NULL means eternal
199
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41 attribute bytea
121
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42 );
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43
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a85d889a1b0d Fixed some backend specific stuff (sql statements, schema).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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44 CREATE SEQUENCE COLLECTION_ITEMS_ID_SEQ;
121
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45
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46 CREATE TABLE collection_items (
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47 id int PRIMARY KEY NOT NULL,
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48 collection_id int NOT NULL REFERENCES collections(id),
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49 artifact_id int NOT NULL REFERENCES artifacts(id),
199
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50 attribute bytea,
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92166f7c3842 #50 Added code on database level to recognize the oldest collection item in a collection (-> master artifact).
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51 creation timestamp NOT NULL,
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52 UNIQUE (collection_id, artifact_id)
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53 );
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54
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55 CREATE FUNCTION collections_access_update() RETURNS trigger AS
328ef982d768 When an artifact is touched the collections which contain the artifact are touched, too.
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56 $$
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57 BEGIN
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58 UPDATE collections SET last_access = current_timestamp
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59 WHERE id IN
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60 (SELECT c.id FROM collections c
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61 INNER JOIN collection_items ci ON c.id = ci.collection_id
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62 INNER JOIN artifacts a ON a.id = ci.artifact_id
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63 WHERE a.id = NEW.id);
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64 RETURN NEW;
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65 END;
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66 $$
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67 LANGUAGE 'plpgsql';
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68
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69
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70 CREATE TRIGGER collections_access_update_trigger AFTER UPDATE
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71 ON artifacts FOR EACH ROW
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72 EXECUTE PROCEDURE collections_access_update();
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73
38
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74 COMMIT;
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