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Enso-Bot/venv/Lib/site-packages/django/db/backends/sqlite3/features.py

45 lines
1.9 KiB
Python

from django.db.backends.base.features import BaseDatabaseFeatures
from .base import Database
class DatabaseFeatures(BaseDatabaseFeatures):
# SQLite can read from a cursor since SQLite 3.6.5, subject to the caveat
# that statements within a connection aren't isolated from each other. See
# https://sqlite.org/isolation.html.
can_use_chunked_reads = True
test_db_allows_multiple_connections = False
supports_unspecified_pk = True
supports_timezones = False
max_query_params = 999
supports_mixed_date_datetime_comparisons = False
can_introspect_autofield = True
can_introspect_decimal_field = False
can_introspect_duration_field = False
can_introspect_positive_integer_field = True
can_introspect_small_integer_field = True
introspected_big_auto_field_type = 'AutoField'
introspected_small_auto_field_type = 'AutoField'
supports_transactions = True
atomic_transactions = False
can_rollback_ddl = True
supports_atomic_references_rename = Database.sqlite_version_info >= (3, 26, 0)
can_create_inline_fk = False
supports_paramstyle_pyformat = False
supports_sequence_reset = False
can_clone_databases = True
supports_temporal_subtraction = True
ignores_table_name_case = True
supports_cast_with_precision = False
time_cast_precision = 3
can_release_savepoints = True
# Is "ALTER TABLE ... RENAME COLUMN" supported?
can_alter_table_rename_column = Database.sqlite_version_info >= (3, 25, 0)
supports_parentheses_in_compound = False
# Deferred constraint checks can be emulated on SQLite < 3.20 but not in a
# reasonably performant way.
supports_pragma_foreign_key_check = Database.sqlite_version_info >= (3, 20, 0)
can_defer_constraint_checks = supports_pragma_foreign_key_check
supports_functions_in_partial_indexes = Database.sqlite_version_info >= (3, 15, 0)
supports_over_clause = Database.sqlite_version_info >= (3, 25, 0)