This should provide some marginal overall savings, since it surely takes many more cycles for the remote server to deal with the NULL columns than it takes for postgres_fdw not to emit them. But really the reason is to keep the emitted queries from looking quite so silly ... |
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.. | ||
expected | ||
sql | ||
.gitignore | ||
Makefile | ||
connection.c | ||
deparse.c | ||
option.c | ||
postgres_fdw--1.0.sql | ||
postgres_fdw.c | ||
postgres_fdw.control | ||
postgres_fdw.h |