Re: [HACKERS] Datatyp of a column
Ishaya Bhatt ishayabh...@gmail.com writes: In the sorting code, I need to determine the datatype of my sort keys and call some code conditionally based on the datatype. Is there any way to determine the datatype of a column from the *backend* PostGreSQL code. is the datatype of the column available in the query plan? Any help on this would be very much appreciated. You really need to be more specific about where you need this information. The sorting code certainly knows what datatypes it's working with --- for example, in tuplesort.c there's a TupleDesc for the tuples passing through the sort, and the column types are available from the per-column atttypid fields of that. But it's not clear if that's what you're talking about. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
Re: [HACKERS] Datatyp of a column
Yes!! Thats exactly what I was looking for !! Thanks :) On Mon, Nov 11, 2013 at 7:58 PM, Tom Lane t...@sss.pgh.pa.us wrote: Ishaya Bhatt ishayabh...@gmail.com writes: In the sorting code, I need to determine the datatype of my sort keys and call some code conditionally based on the datatype. Is there any way to determine the datatype of a column from the *backend* PostGreSQL code. is the datatype of the column available in the query plan? Any help on this would be very much appreciated. You really need to be more specific about where you need this information. The sorting code certainly knows what datatypes it's working with --- for example, in tuplesort.c there's a TupleDesc for the tuples passing through the sort, and the column types are available from the per-column atttypid fields of that. But it's not clear if that's what you're talking about. regards, tom lane
