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42 lines
1.3 KiB
PL/PgSQL
42 lines
1.3 KiB
PL/PgSQL
-- Copyright (c) 2016-2018 Timescale, Inc. All Rights Reserved.
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--
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-- This file is licensed under the Apache License,
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-- see LICENSE-APACHE at the top level directory.
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\o /dev/null
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\ir include/insert_single.sql
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\o
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-- Make sure UPDATE isn't optimized if it includes Append plans
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-- Need to turn of nestloop to make append appear the same on PG96 and PG10
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set enable_nestloop = 'off';
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CREATE OR REPLACE FUNCTION series_val()
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RETURNS integer LANGUAGE PLPGSQL STABLE AS
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$BODY$
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BEGIN
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RETURN 5;
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END;
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$BODY$;
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-- ConstraintAwareAppend applied for SELECT
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EXPLAIN (costs off)
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SELECT FROM "one_Partition"
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WHERE series_1 IN (SELECT series_1 FROM "one_Partition" WHERE series_1 > series_val());
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-- ConstraintAwareAppend NOT applied for UPDATE
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EXPLAIN (costs off)
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UPDATE "one_Partition"
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SET series_1 = 8
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WHERE series_1 IN (SELECT series_1 FROM "one_Partition" WHERE series_1 > series_val());
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SELECT * FROM "one_Partition" ORDER BY "timeCustom", device_id;
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UPDATE "one_Partition"
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SET series_1 = 8
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WHERE series_1 IN (SELECT series_1 FROM "one_Partition" WHERE series_1 > series_val());
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SELECT * FROM "one_Partition" ORDER BY "timeCustom", device_id;
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UPDATE "one_Partition" SET series_1 = 47;
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UPDATE "one_Partition" SET series_bool = true;
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SELECT * FROM "one_Partition" ORDER BY "timeCustom", device_id;
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