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Code Issues 32 Releases Wiki Activity

Fixed #31473 -- Made sql_flush() use RESTART IDENTITY to reset sequences on PostgreSQL.

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The sql_flush() positional argument sequences is replaced by the boolean
keyword-only argument reset_sequences. This ensures that the old
function signature can't be used by mistake when upgrading Django. When
the new argument is True, the sequences of the truncated tables will
reset. Using a single boolean value, rather than a list, allows making a
binary yes/no choice as to whether to reset all sequences rather than a
working on a completely different set.
This commit is contained in:
Jon Dufresne
2020-04-15 02:20:46 -07:00
committed by Mariusz Felisiak
parent 8005829bb9
commit 75410228df
13 changed files with 92 additions and 176 deletions
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29
tests/backends/oracle/test_operations.py
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@@ -31,7 +31,6 @@ class OperationsTests(unittest.TestCase):
statements = connection.ops.sql_flush(
no_style(),
[Person._meta.db_table, Tag._meta.db_table],
[],
)
# The tables and constraints are processed in an unordered set.
self.assertEqual(
@@ -56,7 +55,6 @@ class OperationsTests(unittest.TestCase):
statements = connection.ops.sql_flush(
no_style(),
[Person._meta.db_table, Tag._meta.db_table],
[],
allow_cascade=True,
)
# The tables and constraints are processed in an unordered set.
@@ -83,16 +81,7 @@ class OperationsTests(unittest.TestCase):
statements = connection.ops.sql_flush(
no_style(),
[Person._meta.db_table, Tag._meta.db_table],
[
{
'table': Person._meta.db_table,
'column': Person._meta.pk.db_column,
},
{
'table': Tag._meta.db_table,
'column': Tag._meta.pk.db_column,
},
],
reset_sequences=True,
)
# The tables and constraints are processed in an unordered set.
self.assertEqual(
@@ -121,16 +110,7 @@ class OperationsTests(unittest.TestCase):
statements = connection.ops.sql_flush(
no_style(),
[Person._meta.db_table, Tag._meta.db_table],
[
{
'table': Person._meta.db_table,
'column': Person._meta.pk.db_column,
},
{
'table': Tag._meta.db_table,
'column': Tag._meta.pk.db_column,
},
],
reset_sequences=True,
allow_cascade=True,
)
# The tables and constraints are processed in an unordered set.
@@ -153,6 +133,7 @@ class OperationsTests(unittest.TestCase):
'"BACKENDS__PERSON_ID_1DD5E829_F";',
)
# Sequences.
self.assertEqual(len(statements[5:]), 2)
self.assertEqual(len(statements[5:]), 3)
self.assertIn('BACKENDS_PERSON_SQ', statements[5])
self.assertIn('BACKENDS_TAG_SQ', statements[6])
self.assertIn('BACKENDS_VERYLONGMODELN7BE2_SQ', statements[6])
self.assertIn('BACKENDS_TAG_SQ', statements[7])