> -----Original Message----- > From: Andreas Pflug [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 07, 2004 11:17 AM > To: Dann Corbit > Cc: [EMAIL PROTECTED] > Subject: Re: [HACKERS] Dumb question: How do I determine > programmatically if a column is nullable? > > > Dann Corbit wrote: > > > What API call can I make to find out if a column is nullable or not? > > > > SELECT attnotnull FROM pg_attribute ... > see documentation "Internals/System Catalogs"
Is there a way do do it when I have some arbitrary query that returns a result set? In other words, I will be passed a SQL query. I don't want to have to parse it myself. Rather, I want to know (for the bound columns) if a column is nullable or not. Is the functionality available in [for example] libpq? ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match