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Rename nodes/relation.h to nodes/pathnodes.h.

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The old name of this file was never a very good indication of what it
was for.  Now that there's also access/relation.h, we have a potential
confusion hazard as well, so let's rename it to something more apropos.
Per discussion, "pathnodes.h" is reasonable, since a good fraction of
the file is Path node definitions.

While at it, tweak a couple of other headers that were gratuitously
importing relation.h into modules that don't need it.

Discussion: https://postgr.es/m/7719.1548688728@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2019-01-29 16:49:25 -05:00
parent f09346a9c6
commit fa2cf164aa
44 changed files with 60 additions and 59 deletions
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src/include/optimizer/optimizer.h
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@@ -25,10 +25,10 @@
#include "nodes/parsenodes.h"
/*
* We don't want to include nodes/relation.h here, because non-planner
* We don't want to include nodes/pathnodes.h here, because non-planner
* code should generally treat PlannerInfo as an opaque typedef.
* But we'd like such code to use that typedef name, so define the
* typedef either here or in relation.h, whichever is read first.
* typedef either here or in pathnodes.h, whichever is read first.
*/
#ifndef HAVE_PLANNERINFO_TYPEDEF
typedef struct PlannerInfo PlannerInfo;