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4d2a65daa6
SQL code is now split into setup, functions, and init files to allow a subset to be run when the extension is updated. During build, an update script is now also generated.
36 lines
2.0 KiB
SQL
36 lines
2.0 KiB
SQL
-- This file contains infrastructure for cache invalidation of TimescaleDB
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-- metadata caches kept in C. Please look at cache_invalidate.c for a
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-- description of how this works.
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CREATE TABLE _timescaledb_cache.cache_inval_hypertable();
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-- This is pretty subtle. We create this dummy cache_inval_extension table
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-- solely for the purpose of getting a relcache invalidation event when it is
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-- deleted on DROP extension. It has no related triggers. When the table is
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-- invalidated, all backends will be notified and will know that they must
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-- invalidate all cached information, including catalog table and index OIDs,
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-- etc.
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CREATE TABLE _timescaledb_cache.cache_inval_extension();
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-- not actually strictly needed but good for sanity as all tables should be dumped.
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SELECT pg_catalog.pg_extension_config_dump('_timescaledb_cache.cache_inval_hypertable', '');
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SELECT pg_catalog.pg_extension_config_dump('_timescaledb_cache.cache_inval_extension', '');
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CREATE TRIGGER "0_cache_inval" AFTER INSERT OR UPDATE OR DELETE OR TRUNCATE ON _timescaledb_catalog.hypertable
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FOR EACH STATEMENT EXECUTE PROCEDURE _timescaledb_cache.invalidate_relcache_trigger('cache_inval_hypertable');
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CREATE TRIGGER "0_cache_inval" AFTER INSERT OR UPDATE OR DELETE OR TRUNCATE ON _timescaledb_catalog.chunk
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FOR EACH STATEMENT EXECUTE PROCEDURE _timescaledb_cache.invalidate_relcache_trigger('cache_inval_hypertable');
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CREATE TRIGGER "0_cache_inval" AFTER INSERT OR UPDATE OR DELETE OR TRUNCATE ON _timescaledb_catalog.chunk_constraint
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FOR EACH STATEMENT EXECUTE PROCEDURE _timescaledb_cache.invalidate_relcache_trigger('cache_inval_hypertable');
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CREATE TRIGGER "0_cache_inval" AFTER INSERT OR UPDATE OR DELETE OR TRUNCATE ON _timescaledb_catalog.dimension_slice
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FOR EACH STATEMENT EXECUTE PROCEDURE _timescaledb_cache.invalidate_relcache_trigger('cache_inval_hypertable');
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CREATE TRIGGER "0_cache_inval" AFTER INSERT OR UPDATE OR DELETE OR TRUNCATE ON _timescaledb_catalog.dimension
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FOR EACH STATEMENT EXECUTE PROCEDURE _timescaledb_cache.invalidate_relcache_trigger('cache_inval_hypertable');
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