pgsql: Fix misleading comment in RangeTblEntry

Fix misleading comment in RangeTblEntry

The comment describing join_using_alias incorrectly referred to the
alias field as being defined "below", when it actually appears earlier
in the RangeTblEntry struct.  This patch fixes that.

Author: Steve Lau <stevelauc@outlook.com>
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Discussion: https://postgr.es/m/TYWPR01MB10612B020C33FD08F729415CEB613A@TYWPR01MB10612.jpnprd01.prod.outlook.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/e3a0304eba2813821f3db8ab9d45fc584c23575b

Modified Files
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src/include/nodes/parsenodes.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)