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02f7d7aa48
This change introduces two ways of fetching data from data nodes: one using cursors and another one using row-by-row mode. The major benefit of row-by-row mode is that it enables running parallel plans on data nodes. The default data fetcher uses row-by-row mode. A new GUC `timescaledb.remote_data_fetcher` has been added to enable switching between these two implementations (rowbyrow or cursor).
13 lines
342 B
SQL
13 lines
342 B
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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ANALYZE disttable;
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SELECT count(*) FROM disttable;
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SELECT time_bucket('1 hour', time) AS time, device, avg(temp)
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FROM disttable
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GROUP BY 1,2
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ORDER BY 1,2;
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