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| author | Ryuta Kamizono <kamipo@gmail.com> | 2016-02-12 07:01:04 +0900 |
|---|---|---|
| committer | Ryuta Kamizono <kamipo@gmail.com> | 2016-03-12 18:26:41 +0900 |
| commit | 98fb37449e57ab1d956de0ff1d1e309f8b28814b (patch) | |
| tree | 5af5851914eff42e19096a0f2ae18a545711f7e6 /guides/source/development_dependencies_install.md | |
| parent | 9201030320d09bb2ec76a7cc59aa58f77f984995 (diff) | |
| download | rails-98fb37449e57ab1d956de0ff1d1e309f8b28814b.tar.gz rails-98fb37449e57ab1d956de0ff1d1e309f8b28814b.tar.bz2 rails-98fb37449e57ab1d956de0ff1d1e309f8b28814b.zip | |
Primary key should be `NOT NULL`
Follow up to #18228.
In MySQL and PostgreSQL, primary key is to be `NOT NULL` implicitly.
But in SQLite it must be specified `NOT NULL` explicitly.
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