Hi Tom, 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 <t...@sss.pgh.pa.us> wrote: > Sandeep Gupta <gupta.sand...@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. > > regards, tom lane >
