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annotate db/sat_pubsub_update_3_4.sql @ 422:c21f31355ab9

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configuration: "max_items" option: "max_items" is implemented using a text-single field, as it is done in the XEP-0060 example (there is no real formal description). When changing the node configuration, the max_items can't be set to a number lower than the total number of items in the node (the configuration will then be rejected), this is to avoid accidental deletion of items.
author Goffi <goffi@goffi.org>
date Tue, 10 Mar 2020 11:11:38 +0100
parents 1dc606612405
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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a772f7dac930 backend, storage(pgsql): creation/update date + serial ids:
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1 -- we check version of the database before doing anything
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2 -- and stop execution if not good
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3 \set ON_ERROR_STOP
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4 DO $$
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5 DECLARE ver text;
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6 BEGIN
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7 SELECT value INTO ver FROM metadata WHERE key='version';
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8 IF NOT FOUND OR ver!='3' THEN
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1dc606612405 implemented experimental "consistent_publisher" option:
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9 RAISE EXCEPTION 'This update file needs to be applied on database schema version 3, you use version %',ver;
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10 END IF;
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11 END$$;
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12 \unset ON_ERROR_STOP
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13 -- end of version check
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15 /* new "serial ids" option */
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16 ALTER TABLE nodes ADD COLUMN serial_ids boolean NOT NULL DEFAULT FALSE;
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18 /* we want to keep creation and update times */
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19 ALTER TABLE items RENAME COLUMN date TO created;
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20 ALTER TABLE items ADD COLUMN updated timestamp with time zone NOT NULL DEFAULT now();
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22 UPDATE metadata SET value='4' WHERE key='version';