Description
The WT_CURSOR.random method can return an insert object from a page without on-page entries, and immediately calls __wt_kv_return; if the update record for the insert object is invisible to the session, we'll drop core because we expect to reference a valid page object any time we don't have a WT_INSERT/WT_UPDATE pair.
Here's the script:
from helper import key_populate, value_populate
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import wiredtiger, wttest
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# test_xxx.py
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class test_xxx(wttest.WiredTigerTestCase):
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def test_next_random_invisible(self):
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uri = 'table:xxx'
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self.session.begin_transaction()
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self.session.create(uri, 'key_format=S,value_format=S')
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cursor = self.session.open_cursor(uri, None)
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for i in range(1, 100):
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cursor.set_key(key_populate(cursor, i))
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cursor.set_value(value_populate(cursor, i))
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cursor.insert()
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s = self.conn.open_session()
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cursor = s.open_cursor(uri, None, "next_random=true")
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cursor.next()
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if __name__ == '__main__':
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wttest.run()
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Attachments
Issue Links
- related to
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WT-1071 Invisible update changes.
- Closed