cubicweb: misc/migration/3.9.0

misc/migration/3.9.0_Any.py

author	Sylvain Thénault <sylvain.thenault@logilab.fr>
	Wed, 03 Apr 2013 11:09:50 +0200
branch	stable
changeset 8862	8011ca5d2841
parent 5768	1e73a466aa69
permissions	-rw-r--r--

[predicates] use select_or_none rather than select+try/except, expected to be more efficient


if repo.system_source.dbdriver == 'postgres':
    sql('ALTER TABLE appears ADD COLUMN weight float')
    sql('UPDATE appears SET weight=1.0 ')

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