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Code Issues 32 Releases Wiki Activity

[1.5.x] Fixed SQLite's collapsing of same-valued instances in bulk_create

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SQLite used INSERT INTO tbl SELECT %s UNION SELECT %s, the problem
was that there should have been UNION ALL instead of UNION.

Refs #19351

Backpatch of a27582484c
This commit is contained in:
Anssi Kääriäinen
2012-11-24 00:28:20 +02:00
parent 6a00c1968b
commit 625dc3f072
2 changed files with 9 additions and 1 deletions
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2
django/db/backends/sqlite3/base.py
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@@ -227,7 +227,7 @@ 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):