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16 lines
894 B
SQL
16 lines
894 B
SQL
DROP TABLE IF EXISTS test;
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-- You can create a table with the {server_uuid} substituted.
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CREATE TABLE test (x UInt8) ENGINE = ReplicatedMergeTree('/clickhouse/tables/{database}/test', 'replica-{server_uuid}') ORDER BY x;
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-- The server UUID is correctly substituted.
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SELECT engine_full LIKE ('%replica-' || serverUUID()::String || '%') FROM system.tables WHERE database = currentDatabase() AND name = 'test';
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-- An attempt to create a second table with the same UUID results in error.
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CREATE TABLE test2 (x UInt8) ENGINE = ReplicatedMergeTree('/clickhouse/tables/{database}/test', 'replica-{server_uuid}') ORDER BY x; -- { serverError REPLICA_ALREADY_EXISTS }
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-- The macro {server_uuid} is special, not a configuration-type macro. It's normal that it is inaccessible with the getMacro function.
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SELECT getMacro('server_uuid'); -- { serverError NO_ELEMENTS_IN_CONFIG }
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DROP TABLE test SYNC;
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