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This patch stores the current catalog version in an internal table to allow us to verify catalog and code version match. When doing dump/restore people occasionally report very unusual errors and during investigation it is discovered that they loaded a dump from an older version and run it with a later code version. This allows to detect mismatches between installed code version and loaded dump version. The version number in the metadata table will be kept updated in upgrade and downgrade scripts.
21 lines
1.0 KiB
SQL
21 lines
1.0 KiB
SQL
-- This file and its contents are licensed under the Apache License 2.0.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-APACHE for a copy of the license.
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CREATE OR REPLACE FUNCTION _timescaledb_functions.generate_uuid() RETURNS UUID
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AS '@MODULE_PATHNAME@', 'ts_uuid_generate' LANGUAGE C VOLATILE STRICT;
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-- Insert uuid and install_timestamp on database creation. Don't
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-- create exported_uuid because it gets exported and installed during
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-- pg_dump, which would cause a conflict.
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INSERT INTO _timescaledb_catalog.metadata
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SELECT 'uuid', _timescaledb_functions.generate_uuid(), TRUE ON CONFLICT DO NOTHING;
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INSERT INTO _timescaledb_catalog.metadata
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SELECT 'install_timestamp', now(), TRUE ON CONFLICT DO NOTHING;
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-- Install catalog version on database installation and upgrade.
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-- This allows us to detect catalog mismatches in dump/restore cycle.
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INSERT INTO _timescaledb_catalog.metadata (key, value, include_in_telemetry)
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SELECT 'timescaledb_version', '@PROJECT_VERSION_MOD@', FALSE ON CONFLICT (key) DO UPDATE SET value = excluded.value;
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