53 lines
1.5 KiB
Plaintext
53 lines
1.5 KiB
Plaintext
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postgres@loglab:/etc/postgresql/14/main$ psql
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psql (15.2 (Ubuntu 15.2-1.pgdg20.04+1), server 14.7 (Ubuntu 14.7-1.pgdg20.04+1))
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Type "help" for help.
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postgres=# CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;
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NOTICE: extension "timescaledb" already exists, skipping
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CREATE EXTENSION
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postgres=# SELECT extname FROM pg_extension WHERE extname = 'timescaledb';
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extname
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-------------
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timescaledb
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(1 row)
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postgres=# SELECT create_hypertable('logs', 'timestamp');
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ERROR: cannot create a unique index without the column "timestamp" (used in partitioning)
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postgres=# SELECT
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postgres-# i.relname AS index_name,
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postgres-# a.attname AS column_name
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postgres-# FROM
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postgres-# pg_class t,
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postgres-# pg_class i,
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postgres-# pg_index ix,
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postgres-# pg_attribute a
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postgres-# WHERE
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postgres-# t.oid = ix.indrelid
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postgres-# AND i.oid = ix.indexrelid
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postgres-# AND a.attrelid = t.oid
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postgres-# AND a.attnum = ANY(ix.indkey)
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postgres-# AND t.relkind = 'r'
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postgres-# AND t.relname = 'logs'
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postgres-# AND ix.indisunique IS TRUE;
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index_name | column_name
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------------+-------------
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logs_pkey | id
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(1 row)
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postgres=# ALTER TABLE logs DROP CONSTRAINT logs_pkey;
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ALTER TABLE
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postgres=# CREATE UNIQUE INDEX logs_unique_id_timestamp ON logs (id, timestamp);
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CREATE INDEX
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postgres=# SELECT create_hypertable('logs', 'timestamp');
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create_hypertable
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-------------------
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(3,public,logs,t)
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(1 row)
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postgres=# SELECT extname FROM pg_extension WHERE extname = 'timescaledb';
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extname
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-------------
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timescaledb
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(1 row)
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postgres=# \q
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