Discussion: https://postgr.es/m/CA+HiwqFgdp8=0_gi+DU0fPWZbg7qY3KZ_c1Wj1DEvzXC4BCnMQ@mail.gmail.com
* descriptors.)
*
* An SMgrRelation may be "pinned", to prevent it from being destroyed while
- * it's in use. We use this to prevent pointers relcache to smgr from being
+ * it's in use. We use this to prevent pointers in relcache to smgr from being
* invalidated. SMgrRelations that are not pinned are deleted at end of
* transaction.
*/