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+* Add an `:if_not_exists` option to `create_table`.
+
+ Example:
+
+ create_table :posts, if_not_exists: true do |t|
+ t.string :title
+ end
+
+ That would execute:
+
+ CREATE TABLE IF NOT EXISTS posts (
+ ...
+ )
+
+ If the table already exists, `if_not_exists: false` (the default) raises an
+ exception whereas `if_not_exists: true` does nothing.
+
+ *fatkodima*, *Stefan Kanev*
+
* Defining an Enum as a Hash with blank key, or as an Array with a blank value, now raises an `ArgumentError`.
*Christophe Maximin*