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MySQL 8.0.13 and higher supports functional key parts that index expression values rather than column or column prefix values. https://dev.mysql.com/doc/refman/8.0/en/create-index.html |
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mysql2_specific_schema.rb | ||
oracle_specific_schema.rb | ||
postgresql_specific_schema.rb | ||
schema.rb | ||
sqlite_specific_schema.rb |