Re: BUG #15206: Can not import CSV into PostgreSQL

On 2018-05-19 17:05:42 +0200, Milorad Krstevski wrote:
> So first I have to create all (for example 50 columns and define them in data
> type) and then import? That is not the case with any other db.

I am quite certain that it is also the case for Oracle and MySQL.

I suspect that it is true for all SQL databases, since SQL distinguishes
between data definition (DDL) and data manipulation (DML) statements.
Loading data into a table is data manipulation, and you don't want that
to change your data definition as a side effect.

Which database can automatically create columns while loading a CSV file
into a table?

(It is of course possible to write a program which guesses the types of
the columns from the contents of the CSV file and then issues an
appropriate CREATE TABLE or ALTER TABLE statement. I wrote one 20 years
ago. But that's an application program, not part of the database.)

        hp


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