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Tom Lane f09346a9c6 Refactor planner's header files. ... Create a new header optimizer/optimizer.h, which exposes just the planner functions that can be used "at arm's length", without need to access Paths or the other planner-internal data structures defined in nodes/relation.h. This is intended to provide the whole planner API seen by most of the rest of the system; although FDWs still need to use additional stuff, and more thought is also needed about just what selfuncs.c should rely on. The main point of doing this now is to limit the amount of new #include baggage that will be needed by "planner support functions", which I expect to introduce later, and which will be in relevant datatype modules rather than anywhere near the planner. This commit just moves relevant declarations into optimizer.h from other header files (a couple of which go away because everything got moved), and adjusts #include lists to match. There's further cleanup that could be done if we want to decide that some stuff being exposed by optimizer.h doesn't belong in the planner at all, but I'll leave that for another day. Discussion: https://postgr.es/m/11460.1548706639@sss.pgh.pa.us		7 years ago
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expected	In the planner, replace an empty FROM clause with a dummy RTE.	7 years ago
sql	Disable WAL-skipping optimization for COPY on views and foreign tables	7 years ago
.gitignore	…
Makefile	Prevent accidental linking of system-supplied copies of libpq.so etc.	7 years ago
connection.c	Update copyright for 2019	7 years ago
deparse.c	Refactor planner's header files.	7 years ago
option.c	Update copyright for 2019	7 years ago
postgres_fdw--1.0.sql	…
postgres_fdw.c	Refactor planner's header files.	7 years ago
postgres_fdw.control	…
postgres_fdw.h	Update copyright for 2019	7 years ago
shippable.c	Update copyright for 2019	7 years ago