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-rw-r--r--django/db/backends/sqlite3/base.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/django/db/backends/sqlite3/base.py b/django/db/backends/sqlite3/base.py
index 2146a7fa8a..f31d2ab3eb 100644
--- a/django/db/backends/sqlite3/base.py
+++ b/django/db/backends/sqlite3/base.py
@@ -215,7 +215,7 @@ class DatabaseOperations(BaseDatabaseOperations):
res.append("SELECT %s" % ", ".join(
"%%s AS %s" % self.quote_name(f.column) for f in fields
))
- res.extend(["UNION SELECT %s" % ", ".join(["%s"] * len(fields))] * (num_values - 1))
+ res.extend(["UNION ALL SELECT %s" % ", ".join(["%s"] * len(fields))] * (num_values - 1))
return " ".join(res)
class DatabaseWrapper(BaseDatabaseWrapper):