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With this function is possible to execute the Continuous Aggregate query validation over an arbitrary query string, without the need to actually create the Continuous Aggregate. It can be used, for example, to check for most frequent queries maybe using `pg_stat_statements`, validate them and check if there are queries that potenttialy can turned into a Continuous Aggregate.
133 lines
6.8 KiB
SQL
133 lines
6.8 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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-- Adds a materialization invalidation log entry to the local data node
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--
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-- mat_hypertable_id - The hypertable ID of the CAGG materialized hypertable in the Access Node
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-- start_time - The starting time of the materialization invalidation log entry
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-- end_time - The ending time of the materialization invalidation log entry
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CREATE OR REPLACE FUNCTION _timescaledb_functions.invalidation_cagg_log_add_entry(
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mat_hypertable_id INTEGER,
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start_time BIGINT,
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end_time BIGINT
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) RETURNS VOID AS '@MODULE_PATHNAME@', 'ts_invalidation_cagg_log_add_entry' LANGUAGE C STRICT VOLATILE;
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-- Adds a materialization invalidation log entry to the local data node
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--
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-- raw_hypertable_id - The hypertable ID of the original distributed hypertable in the Access Node
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-- start_time - The starting time of the materialization invalidation log entry
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-- end_time - The ending time of the materialization invalidation log entry
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CREATE OR REPLACE FUNCTION _timescaledb_functions.invalidation_hyper_log_add_entry(
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raw_hypertable_id INTEGER,
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start_time BIGINT,
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end_time BIGINT
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) RETURNS VOID AS '@MODULE_PATHNAME@', 'ts_invalidation_hyper_log_add_entry' LANGUAGE C STRICT VOLATILE;
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-- raw_hypertable_id - The hypertable ID of the original distributed hypertable in the Access Node
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CREATE OR REPLACE FUNCTION _timescaledb_functions.hypertable_invalidation_log_delete(
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raw_hypertable_id INTEGER
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) RETURNS VOID AS '@MODULE_PATHNAME@', 'ts_hypertable_invalidation_log_delete' LANGUAGE C STRICT VOLATILE;
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-- mat_hypertable_id - The hypertable ID of the CAGG materialized hypertable in the Access Node
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CREATE OR REPLACE FUNCTION _timescaledb_functions.materialization_invalidation_log_delete(
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mat_hypertable_id INTEGER
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) RETURNS VOID AS '@MODULE_PATHNAME@', 'ts_materialization_invalidation_log_delete' LANGUAGE C STRICT VOLATILE;
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-- raw_hypertable_id - The hypertable ID of the original distributed hypertable in the Access Node
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CREATE OR REPLACE FUNCTION _timescaledb_functions.drop_dist_ht_invalidation_trigger(
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raw_hypertable_id INTEGER
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) RETURNS VOID AS '@MODULE_PATHNAME@', 'ts_drop_dist_ht_invalidation_trigger' LANGUAGE C STRICT VOLATILE;
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-- Processes the hypertable invalidation log in a data node for all the CAGGs that belong to the
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-- distributed hypertable with hypertable ID 'raw_hypertable_id' in the Access Node. The
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-- invalidations are cut, merged and moved to the materialization invalidation log.
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--
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-- mat_hypertable_id - The hypertable ID of the CAGG materialized hypertable in the Access Node
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-- that is currently being refreshed
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-- raw_hypertable_id - The hypertable ID of the original distributed hypertable in the Access Node
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-- dimtype - The OID of the type of the time dimension for this CAGG
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-- mat_hypertable_ids - The array of hypertable IDs for all CAGG materialized hypertables in the
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-- Access Node that belong to 'raw_hypertable_id'
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-- bucket_widths - The array of time bucket widths for all the CAGGs that belong to
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-- 'raw_hypertable_id'
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-- max_bucket_widths - (Deprecated) This argument is ignored and is present only
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-- for backward compatibility.
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-- bucket_functions - (Optional) The array of serialized information about bucket functions
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CREATE OR REPLACE FUNCTION _timescaledb_functions.invalidation_process_hypertable_log(
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mat_hypertable_id INTEGER,
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raw_hypertable_id INTEGER,
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dimtype REGTYPE,
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mat_hypertable_ids INTEGER[],
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bucket_widths BIGINT[],
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max_bucket_widths BIGINT[]
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) RETURNS VOID AS '@MODULE_PATHNAME@', 'ts_invalidation_process_hypertable_log' LANGUAGE C STRICT VOLATILE;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.invalidation_process_hypertable_log(
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mat_hypertable_id INTEGER,
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raw_hypertable_id INTEGER,
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dimtype REGTYPE,
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mat_hypertable_ids INTEGER[],
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bucket_widths BIGINT[],
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max_bucket_widths BIGINT[],
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bucket_functions TEXT[]
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) RETURNS VOID AS '@MODULE_PATHNAME@', 'ts_invalidation_process_hypertable_log' LANGUAGE C STRICT VOLATILE;
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-- Processes the materialization invalidation log in a data node for the CAGG being refreshed that
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-- belongs to the distributed hypertable with hypertable ID 'raw_hypertable_id' in the Access Node.
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-- The invalidations are cut, merged and returned as a single refresh window.
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--
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-- mat_hypertable_id - The hypertable ID of the CAGG materialized hypertable in the Access Node
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-- that is currently being refreshed.
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-- raw_hypertable_id - The hypertable ID of the original distributed hypertable in the Access Node
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-- dimtype - The OID of the type of the time dimension for this CAGG
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-- window_start - The starting time of the CAGG refresh window
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-- window_end - The ending time of the CAGG refresh window
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-- mat_hypertable_ids - The array of hypertable IDs for all CAGG materialized hypertables in the
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-- Access Node that belong to 'raw_hypertable_id'
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-- bucket_widths - The array of time bucket widths for all the CAGGs that belong to
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-- 'raw_hypertable_id'
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-- max_bucket_widths - (Deprecated) This argument is ignored and is present only
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-- for backward compatibility.
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-- bucket_functions - (Optional) The array of serialized information about bucket functions
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--
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-- Returns a tuple of:
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-- ret_window_start - The merged refresh window starting time
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-- ret_window_end - The merged refresh window ending time
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CREATE OR REPLACE FUNCTION _timescaledb_functions.invalidation_process_cagg_log(
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mat_hypertable_id INTEGER,
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raw_hypertable_id INTEGER,
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dimtype REGTYPE,
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window_start BIGINT,
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window_end BIGINT,
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mat_hypertable_ids INTEGER[],
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bucket_widths BIGINT[],
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max_bucket_widths BIGINT[],
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OUT ret_window_start BIGINT,
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OUT ret_window_end BIGINT
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) RETURNS RECORD AS '@MODULE_PATHNAME@', 'ts_invalidation_process_cagg_log' LANGUAGE C STRICT VOLATILE;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.invalidation_process_cagg_log(
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mat_hypertable_id INTEGER,
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raw_hypertable_id INTEGER,
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dimtype REGTYPE,
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window_start BIGINT,
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window_end BIGINT,
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mat_hypertable_ids INTEGER[],
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bucket_widths BIGINT[],
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max_bucket_widths BIGINT[],
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bucket_functions TEXT[],
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OUT ret_window_start BIGINT,
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OUT ret_window_end BIGINT
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) RETURNS RECORD AS '@MODULE_PATHNAME@', 'ts_invalidation_process_cagg_log' LANGUAGE C STRICT VOLATILE;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.cagg_validate_query(
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query TEXT,
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OUT is_valid BOOLEAN,
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OUT error_level TEXT,
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OUT error_code TEXT,
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OUT error_message TEXT,
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OUT error_detail TEXT,
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OUT error_hint TEXT
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) RETURNS RECORD AS '@MODULE_PATHNAME@', 'ts_continuous_agg_validate_query' LANGUAGE C STRICT VOLATILE;
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