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Re: what is sublinks in query planner?

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Sandeep Gupta <gupta.sandeep@xxxxxxxxx> 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


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