On 2 November 2017 at 22:22, David Rowley <david.rowley@2ndquadrant.com> wrote:
> On 3 November 2017 at 03:17, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> We've jacked up the List API and driven a new implementation underneath
>> once before. Maybe it's time to do that again.
>
> Maybe, but the new implementation is not going to do well with places
> where we perform lcons(). Probably many of those places could be
> changed to lappend(), but I bet there's plenty that need prepend.
Yeah, and it's IMO significant that pretty much every nontrivial
system with ADTs offers multiple implementations of list data
structures, often wrapped with a common API.
Java's Collections, the STL, you name it.
-- Craig Ringer http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services
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