Re: pl/python composite type array as input parameter

On 02/06/2015, at 15:51, Adrian Klaver <adrian.klaver@aklaver.com> wrote:

On 06/02/2015 03:10 AM, Filipe Pina wrote:

HI Adrian,

I had a typo in the email:

INSERT INTO my_table VALUES(my_table.*);

was actually

INSERT INTO my_table VALUES(my_var.*);

Aah, that is different:)

So I meant to insert the variable I had in memory (dict representing a row), not the rows from the table..

So where is the variable getting its data?

Or can we see a simple example of what you are trying to do?

On 02/06/2015, at 01:44, Adrian Klaver <adrian.klaver@aklaver.com> wrote:

On 06/01/2015 07:42 AM, Filipe Pina wrote:

Thanks for the reply anyway, it's a pity though, it'd be useful..

Another bump I've found along the pl/python road: insert ROWTYPE in table..
Maybe you have some hint on that? :)

So, in PLPGSQL I can:

DECLARE
  my_var my_table;
BEGIN
  my_var.col1 := 'asd';
  INSERT INTO my_table VALUES(my_table.*);
END;

How would I do something like that in pl/python?

First, how to declare a ROW-TYPE variable, as they're all python mappings?

my_var = { 'col1': 'asd' } enough? it'd would miss all the other columns...

Second, how to insert it?

plpy.prepare and .execute say they don't support composite types, so I
cannot simply pass

pl = plpy.prepare('INSERT INTO core_customer VALUES ($1)', ['my_table'])

Any workarounds for this? (meaning I wouldn't have to specify any
columns in the insert statement)

http://www.postgresql.org/docs/9.4/interactive/sql-insert.html

pl = plpy.prepare('INSERT INTO core_table SELECT * FROM my_table')

Thanks

On Sex, Mai 29, 2015 at 2:00 , Peter Eisentraut <peter_e@gmx.net> wrote:

On 5/18/15 10:52 AM, Filipe Pina wrote:

   But one of the functions I need to create needs to accept an array
   of records.

PL/Python doesn't support that. Some more code needs to be written to
support that. You did everything correctly. I don't know of a good
workaround.

--
Adrian Klaver
adrian.klaver@aklaver.com

-- 
Adrian Klaver
adrian.klaver@aklaver.com