On 2018-Dec-28, Michael Paquier wrote: > On Thu, Dec 27, 2018 at 04:30:21PM -0300, Alvaro Herrera wrote: > > We allow structs to receive new members at the end of the struct, since > > this doesn't affect the offset of existing members; thus code already > > compiled with the previous struct definition does not break. AFAICS > > there is no danger in backpatching that, moving that struct member at > > the end of the struct. > > Sure. Now this comes to PGPROC, which I am not sure we can say is > never manipulated as an array.
The server code allocates arrays, but that's fine because that code is recompiled. Extensions only pass pointers around -- they don't create any additional arrays. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
