include drop When this option is listed, pgloader drops all the tables in the target PostgreSQL database whose names appear in the SQLite database. This option allows for using the same command several times in a row until you figure out all the options, starting automatically from a clean environment. Please note that CASCADE is used to ensure that tables are dropped even if there are foreign key
We’ve represented the old version in red and the new row version in green. Under the hood, Postgres uses another field holding the row version to determine which tuple is most recent. This added field lets the database determine which row tuple to serve to a transaction that may not be allowed to see the latest row version. With Postgres, the primary index and secondary indexes all point directly
The Uber Engineering group have posted a really great blog post about their move from Postgres to MySQL. I mean that quite literally, it is a pleasure to read, especially since they went into such details as the on-disk format and the implications of that on their performance. For fun, there is another great post from Uber, about moving from MySQL to Postgres, which also has interesting content. G
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