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Fix missing outfuncs.c support for IncrementalSortPath.

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For debugging purposes, Path nodes are supposed to have outfuncs
support, but this was overlooked in the original incremental sort patch.

While at it, clean up a couple other minor oversights, as well as
bizarre choice of return type for create_incremental_sort_path().
(All the existing callers just cast it to "Path *" immediately, so
they don't care, but some future caller might care.)

outfuncs.c fix by Zhijie Hou, the rest by me

Discussion: https://postgr.es/m/324c4d81d8134117972a5b1f6cdf9560@G08CNEXMBPEKD05.g08.fujitsu.local
This commit is contained in:
Tom Lane
2020-11-30 16:32:56 -05:00
parent 58ebe967f8
commit 8286223f3d
5 changed files with 34 additions and 11 deletions
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5
src/include/nodes/pathnodes.h
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@ -1655,7 +1655,10 @@ typedef struct SortPath
} SortPath;
/*
* IncrementalSortPath
* IncrementalSortPath represents an incremental sort step
*
* This is like a regular sort, except some leading key columns are assumed
* to be ordered already.
*/
typedef struct IncrementalSortPath
{