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Simplified MySQL storage engine detection using INFORMATION_SCHEMA.ENGINES table 

Query the table introduced in MySQL 5.1; refs #23144.
This commit is contained in:
Thomas Chaumeny 2014-11-09 23:08:02 +01:00 committed by Tim Graham
parent b748a8bc67
commit 88b2a20f04
1 changed files with 2 additions and 8 deletions
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10
django/db/backends/mysql/base.py
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@ -194,15 +194,9 @@ class DatabaseFeatures(BaseDatabaseFeatures):
def _mysql_storage_engine(self): def _mysql_storage_engine(self):
"Internal method used in Django tests. Don't rely on this from your code" "Internal method used in Django tests. Don't rely on this from your code"
with self.connection.cursor() as cursor: with self.connection.cursor() as cursor:
cursor.execute('CREATE TABLE INTROSPECT_TEST (X INT)') cursor.execute("SELECT ENGINE FROM INFORMATION_SCHEMA.ENGINES WHERE SUPPORT = 'DEFAULT'")
# This command is MySQL specific; the second column
# will tell you the default table type of the created
# table. Since all Django's test tables will have the same
# table type, that's enough to evaluate the feature.
cursor.execute("SHOW TABLE STATUS WHERE Name='INTROSPECT_TEST'")
result = cursor.fetchone() result = cursor.fetchone()
cursor.execute('DROP TABLE INTROSPECT_TEST') return result[0]
return result[1]
@cached_property @cached_property
def can_introspect_foreign_keys(self): def can_introspect_foreign_keys(self):