pgsql/src/backend/parser gram.y

CVSROOT:    /home/projects/pgsql/cvsroot
Module name:    pgsql
Changes by:    tgl@hub.org    01/01/20 12:37:53

Modified files:
    src/backend/parser: gram.y

Log message:
    Give a good error message for what's likely to be a common syntax error,
    namely omitting the alias clause for a sub-SELECT in FROM.