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24 lines
956 B
Python
24 lines
956 B
Python
# Test sequential scan speed
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#
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from contextlib import closing
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from dataclasses import dataclass
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from fixtures.zenith_fixtures import ZenithEnv
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from fixtures.log_helper import log
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from fixtures.benchmark_fixture import MetricReport, ZenithBenchmarker
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from fixtures.compare_fixtures import PgCompare
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import pytest
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@pytest.mark.parametrize('rows', [pytest.param(10000000)])
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def test_compression(zenith_with_baseline: PgCompare, rows: int):
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env = zenith_with_baseline
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with closing(env.pg.connect()) as conn:
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with conn.cursor() as cur:
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with env.record_duration('insert'):
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cur.execute(
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f'create table t as select generate_series(1,{rows}) as pk,(random()*10)::bigint as r10,(random()*100)::bigint as r100,(random()*1000)::bigint as r1000,(random()*10000)::bigint as r10000'
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)
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with env.record_duration('select'):
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cur.execute('select sum(r100) from t')
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