Move some md.c-specific logic from smgr.c to md.c.
authorThomas Munro <tmunro@postgresql.org>
Wed, 17 Jul 2019 00:14:08 +0000 (12:14 +1200)
committerThomas Munro <tmunro@postgresql.org>
Wed, 17 Jul 2019 03:00:22 +0000 (15:00 +1200)
commitdfd0121dc73aab491bcaad2d2b7a2a749389add8
tree2000afe3a63a42cfa506055382a9161ace4ccf2d
parent3093eb2b83645a083a47ea62769ffd89e31f3664
Move some md.c-specific logic from smgr.c to md.c.

Potential future SMGR implementations may not want to create
tablespace directories when creating an SMGR relation.  Move that
logic to mdcreate().  Move the initialization of md-specific
data structures from smgropen() to a new callback mdopen().

Author: Thomas Munro
Reviewed-by: Shawn Debnath (as part of an earlier patch set)
Discussion: https://postgr.es/m/CA%2BhUKG%2BOZqOiOuDm5tC5DyQZtJ3FH4%2BFSVMqtdC4P1atpJ%2Bqhg%40mail.gmail.com
src/backend/storage/smgr/md.c
src/backend/storage/smgr/smgr.c
src/include/storage/md.h