回答編集履歴
1
誤記
test
CHANGED
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@@ -16,6 +16,6 @@
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16
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```ここに言語を入力
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-
add_index :table_name, [:id, :text_column], length: {text_column: 15 }
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+
add_index :table_name, [:id, :text_column], length: { text_column: 15 }
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```
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