mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-18 03:23:37 +08:00
32a695e18f
Historically creating a Continuous Aggregate make it realtime by default but it confuse users specially when using `WITH NO DATA` option. Also is well known that realtime Continuous Aggregates can potentially lead to issues with Hierarchical and Data Tiering. Improved the UX by making Continuous Aggregates non-realtime by default.
111 lines
3.4 KiB
SQL
111 lines
3.4 KiB
SQL
-- This file and its contents are licensed under the Timescale License.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-TIMESCALE for a copy of the license.
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SELECT
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format('include/%s_setup.sql', :'TEST_BASE_NAME') as "TEST_SETUP_NAME",
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format('include/%s_query.sql', :'TEST_BASE_NAME') as "TEST_QUERY_NAME",
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format('%s/shared/results/%s_results_source.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') as "TEST_RESULTS_SOURCE",
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format('%s/shared/results/%s_results_target.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') as "TEST_RESULTS_TARGET"
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\gset
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SELECT format('\! diff -u --label "Source results" --label "Target results" %s %s', :'TEST_RESULTS_SOURCE', :'TEST_RESULTS_TARGET') as "DIFF_CMD"
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\gset
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-- Setup
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\ir :TEST_SETUP_NAME
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\o :TEST_RESULTS_SOURCE
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\set TEST_TABLE1 'metrics_compressed_summary'
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\set TEST_TABLE2 'devices'
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\ir :TEST_QUERY_NAME
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\set TEST_TABLE1 'metrics_compressed_summary'
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\set TEST_TABLE2 'all_devices'
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\ir :TEST_QUERY_NAME
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\o
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\o :TEST_RESULTS_TARGET
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\set TEST_TABLE1 'metrics_summary'
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\set TEST_TABLE2 'devices'
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\ir :TEST_QUERY_NAME
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\set TEST_TABLE1 'metrics_summary'
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\set TEST_TABLE2 'all_devices'
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\ir :TEST_QUERY_NAME
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\o
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-- Compare results of CAgg over Compressed and Uncompressed hypertables
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:DIFF_CMD
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\o :TEST_RESULTS_SOURCE
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\set TEST_TABLE1 'metrics_compressed_summary'
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\set TEST_TABLE2 'devices'
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\ir :TEST_QUERY_NAME
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\set TEST_TABLE1 'metrics_compressed_summary'
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\set TEST_TABLE2 'all_devices'
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\ir :TEST_QUERY_NAME
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\o
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\o :TEST_RESULTS_TARGET
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\set TEST_TABLE1 '(SELECT device_id, time_bucket(INTERVAL $$1 week$$, time) AS bucket, AVG(v2), MIN(v2), MAX(v2) FROM metrics_compressed GROUP BY device_id, bucket)'
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\set TEST_TABLE2 'devices'
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\ir :TEST_QUERY_NAME
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\set TEST_TABLE1 '(SELECT device_id, time_bucket(INTERVAL $$1 week$$, time) AS bucket, AVG(v2), MIN(v2), MAX(v2) FROM metrics_compressed GROUP BY device_id, bucket)'
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\set TEST_TABLE2 'all_devices'
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\ir :TEST_QUERY_NAME
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\o
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-- Compare results between CAggs and Original View (to check PG and TSDB machinery)
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:DIFF_CMD
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-- Decompres 1 chunk from cagg
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SELECT CASE WHEN res is NULL THEN NULL
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ELSE 'decompress'
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END as dec
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FROM ( SELECT decompress_chunk(ch) res FROM show_chunks('metrics_compressed_summary') ch ORDER BY ch LIMIT 1) q;
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-- Run tests and compare results
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\o :TEST_RESULTS_SOURCE
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\set TEST_TABLE1 'metrics_compressed_summary'
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\set TEST_TABLE2 'devices'
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\ir :TEST_QUERY_NAME
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\set TEST_TABLE1 'metrics_compressed_summary'
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\set TEST_TABLE2 'all_devices'
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\ir :TEST_QUERY_NAME
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\o
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\o :TEST_RESULTS_TARGET
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\set TEST_TABLE1 'metrics_summary'
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\set TEST_TABLE2 'devices'
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\ir :TEST_QUERY_NAME
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\set TEST_TABLE1 'metrics_summary'
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\set TEST_TABLE2 'all_devices'
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\ir :TEST_QUERY_NAME
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\o
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-- Compare results of CAgg (partial compressed) over Compressed hypertables
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:DIFF_CMD
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-- Teardown
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DROP MATERIALIZED VIEW metrics_compressed_summary;
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DROP MATERIALIZED VIEW metrics_summary;
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DROP VIEW all_devices;
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DROP TABLE extra_devices;
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-- test enabling compression on cagg after column rename
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CREATE TABLE comp_rename(time timestamptz);
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SELECT table_name FROM create_hypertable('comp_rename', 'time');
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CREATE MATERIALIZED VIEW comp_rename_cagg WITH (timescaledb.continuous, timescaledb.materialized_only=false) AS
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SELECT time_bucket('1 week', time) AS bucket FROM comp_rename GROUP BY 1;
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ALTER MATERIALIZED VIEW comp_rename_cagg RENAME COLUMN bucket to "time";
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ALTER MATERIALIZED VIEW comp_rename_cagg SET ( timescaledb.compress='true');
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DROP TABLE comp_rename CASCADE;
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