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-rw-r--r--django/db/backends/base/schema.py2
-rw-r--r--django/db/backends/mysql/schema.py3
-rw-r--r--django/db/backends/oracle/schema.py1
-rw-r--r--django/db/backends/sqlite3/schema.py1
4 files changed, 1 insertions, 6 deletions
diff --git a/django/db/backends/base/schema.py b/django/db/backends/base/schema.py
index 91351e5c9e..cf9243ccf0 100644
--- a/django/db/backends/base/schema.py
+++ b/django/db/backends/base/schema.py
@@ -95,7 +95,7 @@ class BaseDatabaseSchemaEditor:
sql_alter_column_default = "ALTER COLUMN %(column)s SET DEFAULT %(default)s"
sql_alter_column_no_default = "ALTER COLUMN %(column)s DROP DEFAULT"
sql_alter_column_no_default_null = sql_alter_column_no_default
- sql_delete_column = "ALTER TABLE %(table)s DROP COLUMN %(column)s CASCADE"
+ sql_delete_column = "ALTER TABLE %(table)s DROP COLUMN %(column)s"
sql_rename_column = (
"ALTER TABLE %(table)s RENAME COLUMN %(old_column)s TO %(new_column)s"
)
diff --git a/django/db/backends/mysql/schema.py b/django/db/backends/mysql/schema.py
index 002ed20700..a4dba0ad39 100644
--- a/django/db/backends/mysql/schema.py
+++ b/django/db/backends/mysql/schema.py
@@ -11,9 +11,6 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
sql_alter_column_type = "MODIFY %(column)s %(type)s%(collation)s%(comment)s"
sql_alter_column_no_default_null = "ALTER COLUMN %(column)s SET DEFAULT NULL"
- # No 'CASCADE' which works as a no-op in MySQL but is undocumented
- sql_delete_column = "ALTER TABLE %(table)s DROP COLUMN %(column)s"
-
sql_delete_unique = "ALTER TABLE %(table)s DROP INDEX %(name)s"
sql_create_column_inline_fk = (
", ADD CONSTRAINT %(name)s FOREIGN KEY (%(column)s) "
diff --git a/django/db/backends/oracle/schema.py b/django/db/backends/oracle/schema.py
index ba3c4778d3..f094bfb038 100644
--- a/django/db/backends/oracle/schema.py
+++ b/django/db/backends/oracle/schema.py
@@ -19,7 +19,6 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
sql_alter_column_no_default = "MODIFY %(column)s DEFAULT NULL"
sql_alter_column_no_default_null = sql_alter_column_no_default
- sql_delete_column = "ALTER TABLE %(table)s DROP COLUMN %(column)s"
sql_create_column_inline_fk = (
"CONSTRAINT %(name)s REFERENCES %(to_table)s(%(to_column)s)%(deferrable)s"
)
diff --git a/django/db/backends/sqlite3/schema.py b/django/db/backends/sqlite3/schema.py
index 3617d17fac..10edfd81b9 100644
--- a/django/db/backends/sqlite3/schema.py
+++ b/django/db/backends/sqlite3/schema.py
@@ -16,7 +16,6 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
"REFERENCES %(to_table)s (%(to_column)s) DEFERRABLE INITIALLY DEFERRED"
)
sql_create_column_inline_fk = sql_create_inline_fk
- sql_delete_column = "ALTER TABLE %(table)s DROP COLUMN %(column)s"
sql_create_unique = "CREATE UNIQUE INDEX %(name)s ON %(table)s (%(columns)s)"
sql_delete_unique = "DROP INDEX %(name)s"
sql_alter_table_comment = None