Fix minor comments

maropu · maropu · commit 12347e66c119 · 2017-06-30T14:17:43.000+09:00
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/Column.scala b/sql/core/src/main/scala/org/apache/spark/sql/Column.scala
@@ -468,7 +468,7 @@ class Column(val expr: Expression) extends Logging {
     val right = lit(other).expr
     if (this.expr == right) {
       logWarning(
-        s"Constructing trivially true equals predicate, '${this.expr} = $right'. " +
+        s"Constructing trivially true equals predicate, '${this.expr} <=> $right'. " +
           "Perhaps you need to use aliases.")
     }
     EqualNullSafe(expr, right)

Original file line number	Diff line number	Diff line change
`@@ -468,7 +468,7 @@ class Column(val expr: Expression) extends Logging {`
`468`	`468`	`val right = lit(other).expr`
`469`	`469`	`if (this.expr == right) {`
`470`	`470`	`logWarning(`
`471`		`- s"Constructing trivially true equals predicate, '${this.expr} = $right'. " +`
	`471`	`+ s"Constructing trivially true equals predicate, '${this.expr} <=> $right'. " +`
`472`	`472`	`"Perhaps you need to use aliases.")`
`473`	`473`	`}`
`474`	`474`	`EqualNullSafe(expr, right)`