Skip to content

D
django
Kaydet (Commit) 133e7939 authored tarafından Damian Dimmich's avatar Damian Dimmich Kaydeden (comit) Tim Graham
Dosyalara gözat
Seçenekler

Updated docs for fast column creation with defaults in PostgreSQL 11.

üst 6275b50a
Hide whitespace changes
Inline Side-by-side
Showing with 3 additions and 2 deletions
docs/topics/migrations.txt
Dosyayı görüntüle @ 133e7939
...@@ -67,9 +67,10 @@ PostgreSQL ...@@ -67,9 +67,10 @@ PostgreSQL
---------- ----------
PostgreSQL is the most capable of all the databases here in terms of schema PostgreSQL is the most capable of all the databases here in terms of schema
support; the only caveat is that adding columns with default values will support.
cause a full rewrite of the table, for a time proportional to its size.
The only caveat is that prior to PostgreSQL 11, adding columns with default
values causes a full rewrite of the table, for a time proportional to its size.
For this reason, it's recommended you always create new columns with For this reason, it's recommended you always create new columns with
``null=True``, as this way they will be added immediately. ``null=True``, as this way they will be added immediately.
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment