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Updated docs for fast column creation with defaults in PostgreSQL 11.
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@ -67,9 +67,10 @@ PostgreSQL
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PostgreSQL is the most capable of all the databases here in terms of schema
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support; the only caveat is that adding columns with default values will
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cause a full rewrite of the table, for a time proportional to its size.
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support.
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The only caveat is that prior to PostgreSQL 11, adding columns with default
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values causes a full rewrite of the table, for a time proportional to its size.
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For this reason, it's recommended you always create new columns with
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``null=True``, as this way they will be added immediately.
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