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| -rw-r--r-- | django/db/backends/oracle/query.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/django/db/backends/oracle/query.py b/django/db/backends/oracle/query.py index bb56af51ec..db041607cc 100644 --- a/django/db/backends/oracle/query.py +++ b/django/db/backends/oracle/query.py @@ -134,6 +134,16 @@ def get_query_set_class(DefaultQuerySet): if order_by: sql.append("ORDER BY " + ", ".join(order_by)) + # Look for column name collisions in the select elements + # and fix them with an AS alias. This allows us to do a + # SELECT * later in the paging query. + cols = [clause.split('.')[-1] for clause in select] + for index, col in enumerate(cols): + if cols.count(col) > 1: + col = '%s%d' % (col.replace('"', ''), index) + cols[index] = col + select[index] = '%s AS %s' % (select[index], col) + # LIMIT and OFFSET clauses # To support limits and offsets, Oracle requires some funky rewriting of an otherwise normal looking query. select_clause = ",".join(select) |