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19e0439629
Add 3 new engine arguments: - flush_time - flush_rows - flush_bytes That will be checked only for background flush, this maybe useful if INSERT latency is "crucial".
43 lines
1.5 KiB
SQL
43 lines
1.5 KiB
SQL
drop table if exists data_01817;
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drop table if exists buffer_01817;
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create table data_01817 (key Int) Engine=Null();
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-- w/ flush_*
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create table buffer_01817 (key Int) Engine=Buffer(currentDatabase(), data_01817,
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/* num_layers= */ 1,
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/* min_time= */ 1, /* max_time= */ 86400,
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/* min_rows= */ 1e9, /* max_rows= */ 1e6,
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/* min_bytes= */ 0, /* max_bytes= */ 4e6,
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/* flush_time= */ 86400, /* flush_rows= */ 10, /* flush_bytes= */0
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);
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drop table buffer_01817;
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-- w/o flush_*
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create table buffer_01817 (key Int) Engine=Buffer(currentDatabase(), data_01817,
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/* num_layers= */ 1,
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/* min_time= */ 1, /* max_time= */ 86400,
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/* min_rows= */ 1e9, /* max_rows= */ 1e6,
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/* min_bytes= */ 0, /* max_bytes= */ 4e6
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);
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drop table buffer_01817;
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-- not enough args
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create table buffer_01817 (key Int) Engine=Buffer(currentDatabase(), data_01817,
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/* num_layers= */ 1,
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/* min_time= */ 1, /* max_time= */ 86400,
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/* min_rows= */ 1e9, /* max_rows= */ 1e6,
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/* min_bytes= */ 0 /* max_bytes= 4e6 */
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); -- { serverError 42 }
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-- too much args
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create table buffer_01817 (key Int) Engine=Buffer(currentDatabase(), data_01817,
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/* num_layers= */ 1,
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/* min_time= */ 1, /* max_time= */ 86400,
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/* min_rows= */ 1e9, /* max_rows= */ 1e6,
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/* min_bytes= */ 0, /* max_bytes= */ 4e6,
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/* flush_time= */ 86400, /* flush_rows= */ 10, /* flush_bytes= */0,
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0
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); -- { serverError 42 }
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drop table data_01817;
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