Sure. Thanks for the info. This helps. I will look into primnodes.h as well.
-Sandeep
On Fri, Mar 28, 2014 at 3:56 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Sandeep Gupta <gupta.sandeep@gmail.com> writes: > I looked for description of sublinks in the code as well as online but > failed to come with any information. Was wondering someone can provide a > line or two of what sublinks are suppose to do?
They're sub-SELECTs used in expression contexts (ie, not directly in a FROM list). The comments for the SubLink and SubPlan node types in primnodes.h may help you.
