diff --git a/src/backend/commands/statscmds.c b/src/backend/commands/statscmds.c
index 59369f8736..17cbd97808 100644
--- a/src/backend/commands/statscmds.c
+++ b/src/backend/commands/statscmds.c
@@ -205,27 +205,27 @@ CreateStatistics(CreateStatsStmt *stmt)
 	numcols = list_length(stmt->exprs);
 	if (numcols > STATS_MAX_DIMENSIONS)
 		ereport(ERROR,
 				(errcode(ERRCODE_TOO_MANY_COLUMNS),
 				 errmsg("cannot have more than %d columns in statistics",
 						STATS_MAX_DIMENSIONS)));
 
 	/*
 	 * Convert the expression list to a simple array of attnums, but also keep
 	 * a list of more complex expressions.  While at it, enforce some
 	 * constraints - we don't allow extended statistics on system attributes,
-	 * and we require the data type to have less-than operator.
+	 * and we require the data type to have a less-than operator.
 	 *
-	 * There are many ways how to "mask" a simple attribute refenrece as an
+	 * There are many ways to "mask" a simple attribute reference as an
 	 * expression, for example "(a+0)" etc. We can't possibly detect all of
-	 * them, but we handle at least the simple case with attribute in parens.
+	 * them, but we handle at least the simple case with the attribute in parens.
 	 * There'll always be a way around this, if the user is determined (like
 	 * the "(a+0)" example), but this makes it somewhat consistent with how
 	 * indexes treat attributes/expressions.
 	 */
 	foreach(cell, stmt->exprs)
 	{
 		StatsElem  *selem = lfirst_node(StatsElem, cell);
 
 		if (selem->name)		/* column reference */
 		{
 			char	   *attname;