Rephrase a few comments for clarity.
authorHeikki Linnakangas <heikki.linnakangas@iki.fi>
Thu, 19 Jul 2018 13:08:09 +0000 (16:08 +0300)
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>
Thu, 19 Jul 2018 13:08:09 +0000 (16:08 +0300)
commit99fdebaf2da9160ec49a80854dc99e46722a9a03
tree42512e5f581748561818c98b95da6959d444882c
parent405cb356d6104eccf34acc2e4944d711b0961c7d
Rephrase a few comments for clarity.

I was confused by what "intended to be parallel serially" meant, until
Robert Haas and David G. Johnston explained it. Rephrase the comment to
make it more clear, using David's suggested wording.

Discussion: https://www.postgresql.org/message-id/1fec9022-41e8-e484-70ce-2179b08c2092%40iki.fi
src/backend/executor/nodeIndexonlyscan.c
src/backend/executor/nodeIndexscan.c
src/backend/executor/nodeSeqscan.c