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Release query resources in the Python sessionPool example #17013

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Merged
HTHou merged 2 commits into from
Jan 12, 2026
+21 −21
Merged

Release query resources in the Python sessionPool example #17013

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27f7120
Update Python sessionPool example
ZhaoShuai-Buyi Jan 12, 2026
cfe2765
black session_pool_example.py and table_model_session_pool_example.py
ZhaoShuai-Buyi Jan 12, 2026
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18 changes: 9 additions & 9 deletions iotdb-client/client-py/session_pool_example.py
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Original file line number Diff line number Diff line change
Expand Up @@ -89,14 +89,14 @@ def query_data():
session = session_pool.get_session()

print("get data from root.test.d0")
res = session.execute_query_statement("select * from root.test.d0")
while res.has_next():
print(res.next())
with session.execute_query_statement("select * from root.test.d0") as res:
while res.has_next():
print(res.next())

print("get data from root.test.d1")
res = session.execute_query_statement("select * from root.test.d1")
while res.has_next():
print(res.next())
with session.execute_query_statement("select * from root.test.d1") as res:
while res.has_next():
print(res.next())

session_pool.put_back(session)

Expand All @@ -105,9 +105,9 @@ def delete_data():
session = session_pool.get_session()
session.delete_storage_group(STORAGE_GROUP_NAME)
print("data has been deleted. now the devices are:")
res = session.execute_statement("show devices root.test.**")
while res.has_next():
print(res.next())
with session.execute_statement("show devices root.test.**") as res:
while res.has_next():
print(res.next())
session_pool.put_back(session)


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24 changes: 12 additions & 12 deletions iotdb-client/client-py/table_model_session_pool_example.py
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Expand Up @@ -44,9 +44,9 @@ def prepare_data():

print("now the tables are:")
# show result
res = session.execute_query_statement("SHOW TABLES")
while res.has_next():
print(res.next())
with session.execute_query_statement("SHOW TABLES") as res:
while res.has_next():
print(res.next())

session.close()

Expand Down Expand Up @@ -101,14 +101,14 @@ def query_data():
session = session_pool.get_session()

print("get data from table0")
res = session.execute_query_statement("select * from table0")
while res.has_next():
print(res.next())
with session.execute_query_statement("select * from table0") as res:
while res.has_next():
print(res.next())

print("get data from table1")
res = session.execute_query_statement("select * from table0")
while res.has_next():
print(res.next())
with session.execute_query_statement("select * from table0") as res:
while res.has_next():
print(res.next())

session.close()

Expand All @@ -117,9 +117,9 @@ def delete_data():
session = session_pool.get_session()
session.execute_non_query_statement("drop database db1")
print("data has been deleted. now the databases are:")
res = session.execute_query_statement("show databases")
while res.has_next():
print(res.next())
with session.execute_query_statement("show databases") as res:
while res.has_next():
print(res.next())
session.close()


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