Kumar,
> While trying to allocate about 36 input parameters, I got an error saying
> that the max input parameter for a function is only 32.
>
> Is it right? How to overcome this? Because I wanna insert records into a
> table of 55 columns with a lot of NULL able columns.
First off, if your table has 55 columns and many are nullable, then you have a
database design problem ... your database is not normalized.
Assuming that you can't fix your database, there's two methods you can take:
1) Rather than pushing in all of the columns as parameters, you can dump the
record into a holding table (e.g. mytable_buffer) and then call a procedure
to process the data there.
2) You can re-compile PostgreSQL to accept more parameters. This requires:
1. Backup your database cluster using pg_dumpall. (make sure to
double-check!)
2. Shut down postgresql
3. Delete the PGDATA directory
4. Go into your postgresql source, and edit the file
src/include/pg_config.h , and raise "INDEX_MAX_KEYS" to the desired
level,
probably 64. Warning: This may impose a minor performance
penalty on Postgres!
5. Re-compile Postgres, starting with "make clean"
6. Run initdb
7. Restore your database cluster from the pg_dumpall file
--
Josh Berkus
Aglio Database Solutions
San Francisco
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