pgsql: Avoid masking a function parameter name with a local variable na

Avoid masking a function parameter name with a local variable name.

No actual bug here, but it might confuse readers, so change the name
of the local variable.

Ashutosh Bapat

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/6fa391be4e83139cd134d5ccfc1499809bb8c98c

Modified Files
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src/backend/optimizer/path/joinpath.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)