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5bd8e2363a
This will help to keep us from using deprecated Python features going forward. Signed-off-by: Tristan Partin <tristan@neon.tech>
32 lines
1018 B
Python
32 lines
1018 B
Python
from __future__ import annotations
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from fixtures.neon_fixtures import NeonEnv, check_restored_datadir_content
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# Test subtransactions
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#
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# The pg_subxact SLRU is not preserved on restarts, and doesn't need to be
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# maintained in the pageserver, so subtransactions are not very exciting for
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# Neon. They are included in the commit record though and updated in the
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# CLOG.
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def test_subxacts(neon_simple_env: NeonEnv, test_output_dir):
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env = neon_simple_env
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endpoint = env.endpoints.create_start("main")
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pg_conn = endpoint.connect()
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cur = pg_conn.cursor()
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cur.execute("CREATE TABLE t1(i int, j int);")
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cur.execute("select pg_switch_wal();")
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# Issue 100 transactions, with 1000 subtransactions in each.
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for i in range(100):
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cur.execute("begin")
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for j in range(1000):
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cur.execute(f"savepoint sp{j}")
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cur.execute(f"insert into t1 values ({i}, {j})")
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cur.execute("commit")
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check_restored_datadir_content(test_output_dir, env, endpoint)
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