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https://github.com/timescale/timescaledb.git
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754f77e083
This function was used to propagate chunk exclusion decisions from an access node to data nodes and is no longer needed with the removal of multinode.
108 lines
3.5 KiB
MySQL
108 lines
3.5 KiB
MySQL
-- 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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\set PREFIX 'EXPLAIN (costs off) '
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\ir include/plan_expand_hypertable_load.sql
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\ir include/plan_expand_hypertable_query.sql
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\set ECHO errors
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\set TEST_BASE_NAME plan_expand_hypertable
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SELECT format('include/%s_load.sql', :'TEST_BASE_NAME') as "TEST_LOAD_NAME",
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format('include/%s_query.sql', :'TEST_BASE_NAME') as "TEST_QUERY_NAME",
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format('%s/results/%s_results_optimized.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') as "TEST_RESULTS_OPTIMIZED",
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format('%s/results/%s_results_unoptimized.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') as "TEST_RESULTS_UNOPTIMIZED"
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\gset
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SELECT format('\! diff -u --label "Unoptimized result" --label "Optimized result" %s %s', :'TEST_RESULTS_UNOPTIMIZED', :'TEST_RESULTS_OPTIMIZED') as "DIFF_CMD"
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\gset
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-- run queries with optimization on and off and diff results
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\set PREFIX ''
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\o :TEST_RESULTS_OPTIMIZED
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SET timescaledb.enable_optimizations TO true;
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\ir :TEST_QUERY_NAME
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\o
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\o :TEST_RESULTS_UNOPTIMIZED
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SET timescaledb.enable_optimizations TO false;
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\ir :TEST_QUERY_NAME
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\o
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:DIFF_CMD
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\set ECHO queries
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\set PREFIX 'EXPLAIN (costs off)'
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RESET timescaledb.enable_optimizations;
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-- test enable_qual_propagation GUC
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CREATE TABLE t(time timestamptz NOT NULL);
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SELECT table_name FROM create_hypertable('t','time');
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INSERT INTO t VALUES ('2000-01-01'), ('2010-01-01'), ('2020-01-01');
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-- time constraint should be in both scans
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:PREFIX SELECT * FROM t t1 INNER JOIN t t2 ON t1.time = t2.time WHERE t1.time < timestamptz '2010-01-01';
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SET timescaledb.enable_qual_propagation TO false;
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-- time constraint should only be in t1 scan
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:PREFIX SELECT * FROM t t1 INNER JOIN t t2 ON t1.time = t2.time WHERE t1.time < timestamptz '2010-01-01';
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RESET timescaledb.enable_qual_propagation;
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-- test hypertable classification when hypertable is not in cache
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-- https://github.com/timescale/timescaledb/issues/1832
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CREATE TABLE test (a int, time timestamptz NOT NULL);
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SELECT table_name FROM create_hypertable('public.test', 'time');
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INSERT INTO test SELECT i, '2020-04-01'::date-10-i from generate_series(1,20) i;
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CREATE OR REPLACE FUNCTION test_f(_ts timestamptz)
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RETURNS SETOF test LANGUAGE SQL STABLE PARALLEL SAFE
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AS $f$
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SELECT DISTINCT ON (a) * FROM test WHERE time >= _ts ORDER BY a, time DESC
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$f$;
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:PREFIX SELECT * FROM test_f(now());
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-- create new session
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\c
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-- plan output should be identical to previous session
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:PREFIX SELECT * FROM test_f(now());
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-- test hypertable expansion in nested function calls
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CREATE TABLE t1 (a int, b int NOT NULL);
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SELECT create_hypertable('t1', 'b', chunk_time_interval=>10);
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CREATE TABLE t2 (a int, b int NOT NULL);
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SELECT create_hypertable('t2', 'b', chunk_time_interval=>10);
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CREATE OR REPLACE FUNCTION f_t1(_a int, _b int)
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RETURNS SETOF t1
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LANGUAGE SQL
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STABLE PARALLEL SAFE
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AS $function$
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SELECT DISTINCT ON (a) * FROM t1 WHERE a = _a and b = _b ORDER BY a, b DESC
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$function$
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;
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CREATE OR REPLACE FUNCTION f_t2(_a int, _b int) RETURNS SETOF t2 LANGUAGE sql STABLE PARALLEL SAFE
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AS $function$
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SELECT DISTINCT ON (j.a) j.*
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FROM
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f_t1(_a, _b) sc,
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t2 j
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WHERE
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j.b = _b AND
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j.a = _a
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ORDER BY j.a, j.b DESC
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$function$
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;
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CREATE OR REPLACE FUNCTION f_t1_2(_b int) RETURNS SETOF t1 LANGUAGE SQL STABLE PARALLEL SAFE
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AS $function$
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SELECT DISTINCT ON (j.a) jt.* FROM t1 j, f_t1(j.a, _b) jt
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$function$;
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:PREFIX SELECT * FROM f_t1_2(10);
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:PREFIX SELECT * FROM f_t1_2(10) sc, f_t2(sc.a, 10);
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\qecho '--TEST END--'
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