wangyum commented on a change in pull request #29999:
URL: https://github.com/apache/spark/pull/29999#discussion_r519773515
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala
##########
@@ -178,6 +179,142 @@ case class Like(left: Expression, right: Expression,
escapeChar: Char)
}
}
+abstract class LikeAllBase extends Expression with ImplicitCastInputTypes {
Review comment:
Could we make it only support `Literal`, for example:
```scala
case class LikeAll(child: Expression, isNotDefined: Boolean, seq:
mutable.Buffer[Any])
extends UnaryExpression with ImplicitCastInputTypes with NullIntolerant {
override def dataType: DataType = BooleanType
override def inputTypes: Seq[DataType] = StringType :: Nil
@transient private[this] lazy val hasNull: Boolean = seq.contains(null)
@transient private lazy val cachedPattern = seq.filterNot(_ == null)
.map(s => Pattern.compile(StringUtils.escapeLikeRegex(s.toString, '\\')))
override protected def nullSafeEval(input1: Any): Any = {
if (hasNull) {
false
} else {
val str = input1.asInstanceOf[UTF8String].toString
if (isNotDefined) {
!cachedPattern.exists(p => p.matcher(str).matches())
} else {
cachedPattern.forall(p => p.matcher(str).matches())
}
}
}
// TODO: codegen
}
```
```scala
val exps = ctx.expression.asScala.map(expression)
validate(exps.nonEmpty, "Expected something between '(' and ')'.", ctx)
if (exps.size > 10 && exps.forall(_.foldable)) {
LikeAll(e, isNotDefined, exps.map(_.eval(EmptyRow)))
} else {
exps.map(p => invertIfNotDefined(Like(e, p))).reduceLeft(And)
}
```
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