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annotate db/sat_pubsub_update_6_7.sql @ 444:853432aa8002

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install (requirements): launch the setup script at the end of requirements
author Goffi <goffi@goffi.org>
date Sun, 21 Mar 2021 14:36:40 +0100
parents 920440200570
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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433
920440200570 PostgreSQL: don't use `regconfig` and `GENERATED` column anymore
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1 -- NOTE: this update is to be used only by people which have been installing the
920440200570 PostgreSQL: don't use `regconfig` and `GENERATED` column anymore
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2 -- 6th version of the schema. It is has been replaced because regconfig prevent
920440200570 PostgreSQL: don't use `regconfig` and `GENERATED` column anymore
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3 -- proper update (the GENERATED column with regconfig has been replaced by a
920440200570 PostgreSQL: don't use `regconfig` and `GENERATED` column anymore
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4 -- trigger). People which haven't installed 6th version can directly use the
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5 -- sat_pubsub_update_5_7.sql file. The sat_pubsub_update_5_6.sql has been
920440200570 PostgreSQL: don't use `regconfig` and `GENERATED` column anymore
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6 -- deleted has it's not needed anymore and can lead to troubles.
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7
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8 -- we check version of the database before doing anything
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9 -- and stop execution if not good
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10 \set ON_ERROR_STOP
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11 DO $$
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12 DECLARE ver text;
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13 BEGIN
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14 SELECT value INTO ver FROM metadata WHERE key='version';
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15 IF NOT FOUND OR ver!='6' THEN
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16 RAISE EXCEPTION 'This update file needs to be applied on database schema version 6, you use version %',ver;
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17 END IF;
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18 END$$;
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19 \unset ON_ERROR_STOP
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20 -- end of version check
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21
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22 /* regconfig type is not usable when doing database upgrade (for new PostgreSQL major version) */
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23 ALTER TABLE items DROP COLUMN data_fts;
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24 ALTER TABLE items ALTER COLUMN data_fts_cfg TYPE text;
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25 ALTER TABLE items ADD COLUMN data_fts tsvector;
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26 CREATE INDEX items_data_fts ON items USING GIN (data_fts);
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27
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28 ALTER FUNCTION update_data_fts() RENAME TO update_data_fts_cfg;
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29 /* We don't use regconfig anymore in this method */
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30 CREATE OR REPLACE FUNCTION update_data_fts_cfg() RETURNS TRIGGER AS
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31 $$
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32 BEGIN
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33 UPDATE items SET data_fts_cfg=replace(new.fts_language, 'generic', 'simple')
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34 WHERE items.node_id=new.node_id
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35 AND NOT EXISTS(SELECT FROM item_languages AS lang WHERE lang.item_id=items.item_id);
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36 RETURN new;
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37 END;
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38 $$
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39 language plpgsql;
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40
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41 CREATE FUNCTION update_data_fts() RETURNS TRIGGER AS
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42 $$
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43 BEGIN
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44 new.data_fts=to_tsvector(new.data_fts_cfg::regconfig, new.data::text);
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45 RETURN new;
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46 END
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47 $$
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48 language plpgsql;
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49
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50 CREATE TRIGGER items_fts_tsvector_update
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51 BEFORE INSERT OR UPDATE OF data_fts_cfg,data ON items
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52 FOR EACH ROW
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53 EXECUTE PROCEDURE update_data_fts();
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54
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55 /* We do the update to trigger the data_fts generation */
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56 UPDATE items SET data_fts_cfg='simple';
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57
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58 UPDATE metadata SET value='7' WHERE key='version';