pgsql: Make deduplication use number of key attributes.

Make deduplication use number of key attributes.

Use IndexRelationGetNumberOfKeyAttributes() rather than
IndexRelationGetNumberOfAttributes() when determining whether or not two
index tuples are suitable for merging together into a single posting
list tuple. This is a little bit tidier. It brings affected code in
nbtdedup.c a little closer to similar, related code in nbtsplitloc.c.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/a7b9d24e4e00048bf9d99b197996476dcf9492de

Modified Files
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src/backend/access/nbtree/nbtdedup.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)