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14baed927f
The following settings had been covered: - min_bytes_to_use_direct_io - local_filesystem_read_method - local_filesystem_read_prefetch - read_priority - max_read_buffer_size
32 lines
1.1 KiB
Django/Jinja
32 lines
1.1 KiB
Django/Jinja
-- Tags: long
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--
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-- Test for testing various read settings.
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drop table if exists data_02051;
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create table data_02051 (key Int, value String) engine=MergeTree() order by key
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as select number, repeat(toString(number), 5) from numbers(1e6);
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{# check each local_filesystem_read_method #}
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{% for read_method in ['read', 'mmap', 'pread_threadpool', 'pread_fake_async'] %}
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{# check w/ O_DIRECT and w/o (min_bytes_to_use_direct_io) #}
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{% for direct_io in [0, 1] %}
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{# check local_filesystem_read_prefetch (just a smoke test) #}
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{% for prefetch in [0, 1] %}
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{# check read_priority (just a smoke test) #}
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{% for priority in [0, 1] %}
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{# check alignment for O_DIRECT with various max_read_buffer_size #}
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{% for buffer_size in [65505, 1048576] %}
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select count(ignore(*)) from data_02051 settings
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min_bytes_to_use_direct_io={{ direct_io }},
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local_filesystem_read_method='{{ read_method }}',
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local_filesystem_read_prefetch={{ prefetch }},
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read_priority={{ priority }},
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max_read_buffer_size={{ buffer_size }}
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;
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{% endfor %}
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{% endfor %}
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{% endfor %}
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{% endfor %}
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{% endfor %}
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