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db39eddf2e
The cache invalidation triggers on our catalog tables aren't used anymore as all modifications to catalog tables happen using the C API, which doesn't invoke triggers and has its own cache invalidation functionality.
17 lines
985 B
SQL
17 lines
985 B
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 IF NOT EXISTS _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 IF NOT EXISTS _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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