Fix some typos in database_migrations.rst
Change-Id: I713605e7df2cb0b11d39f7825f70ec220f66e6a6
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@ -43,7 +43,7 @@ To achieve this goal, the following rules will be observed for schema changes:
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a. TODO: This Stack Overflow `Need to alter column types in production
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database`_ page and many others summarize the grief involved in doing
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these sort of migrations
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these sorts of migrations
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b. TODO: What about old and new application versions happening
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simultaneously?
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@ -112,7 +112,7 @@ instructions).
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to existing columns/tables**
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b. Remove autogenerated comments such as:
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``### commands auto generated by Alembic - please adjust! ###``
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c. **If you added new columns, follow this guideance**:
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c. **If you added new columns, follow this guidance**:
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1. For non-nullable columns you will need to add default values for the
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records already in the table, per what you configured in the
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