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Added/Updated bugs\gh_6740_test.py. Checked on 5.0.0.509.

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zotov 2022-06-30 11:03:47 +03:00
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commit 8760ded984
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tests/bugs/gh_6740_test.py
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@ -5,53 +5,45 @@ ID: issue-6740
ISSUE: 6740
TITLE: Allow parenthesized query expression for standard-compliance
DESCRIPTION:
NOTES:
Queries which do not use `WITH` clause now can be enclosed in parenthesis,
but this leads to reduced number of max parts of UNIONed query, from 255 to 128.
JIRA: CORE-6511
FBTEST: bugs.gh_6740
NOTES:
[30.06.2022] pzotov
Error message in case when NUM_OF_UNIONED_PARTS >= 129 can obfuscate:
"Too many Contexts of Relation/Procedure/Views. Maximum allowed is 256"
Max limit of unioned-parts is 128, it was explained by Adriano in the ticket.
Checked on 5.0.0.509.
"""
import pytest
from firebird.qa import *
db = db_factory()
act = python_act('db')
expected_stdout = """
8256
"""
NUM_OF_UNIONED_PARTS = 128
unioned_query = '('
for i in range(0,NUM_OF_UNIONED_PARTS):
unioned_query = ''.join( (unioned_query, 'select %d ' % (i+1) + ('as i ' if i==0 else '') + 'from rdb$database') )
if i < NUM_OF_UNIONED_PARTS-1:
unioned_query = ''.join( (unioned_query, ' union all (') )
unioned_query = ''.join( (unioned_query, ')' * NUM_OF_UNIONED_PARTS) )
expected_stdout = "8256"
@pytest.mark.skip('FIXME: Not IMPLEMENTED')
@pytest.mark.version('>=5.0')
def test_1(act: Action):
pytest.fail("Not IMPLEMENTED")
def test_1(act: Action, capsys):
# test_script_1
#---
#
# # NB! Max limit of unioned-parts is 128 rather than 255!
# ########################
# NUM_OF_UNIONED_PARTS=128
# ########################
#
# unioned_query = '('
# for i in range(0,NUM_OF_UNIONED_PARTS):
# unioned_query = ''.join( (unioned_query, 'select %d ' % (i+1) + ('as i ' if i==0 else '') + 'from rdb$database') )
# if i < NUM_OF_UNIONED_PARTS-1:
# unioned_query = ''.join( (unioned_query, ' union all (') )
#
# unioned_query = ''.join( (unioned_query, ')' * NUM_OF_UNIONED_PARTS) )
# unioned_query += ';'
#
# #print(unioned_query)
#
# cur = db_conn.cursor()
# cur.execute(unioned_query)
# total = 0
# for r in cur:
# total += r[0]
# cur.close()
# print(total)
#---
with act.db.connect() as con:
cur = con.cursor()
cur.execute(unioned_query)
print( sum([x[0] for x in cur.fetchall()]) )
act.expected_stdout = expected_stdout
act.stdout = capsys.readouterr().out
assert act.clean_stdout == act.clean_expected_stdout