Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/17633#discussion_r126067892 --- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveShim.scala --- @@ -589,18 +590,43 @@ private[client] class Shim_v0_13 extends Shim_v0_12 { col.getType.startsWith(serdeConstants.CHAR_TYPE_NAME)) .map(col => col.getName).toSet - filters.collect { - case op @ BinaryComparison(a: Attribute, Literal(v, _: IntegralType)) => - s"${a.name} ${op.symbol} $v" - case op @ BinaryComparison(Literal(v, _: IntegralType), a: Attribute) => - s"$v ${op.symbol} ${a.name}" - case op @ BinaryComparison(a: Attribute, Literal(v, _: StringType)) + object ExtractableLiteral { + def unapply(expr: Expression): Option[String] = expr match { + case Literal(value, _: IntegralType) => Some(value.toString) + case Literal(value, _: StringType) => Some(quoteStringLiteral(value.toString)) + case _ => None + } + } + + object ExtractableLiterals { + def unapply(exprs: Seq[Expression]): Option[Seq[String]] = { + exprs.map(ExtractableLiteral.unapply).foldLeft(Option(Seq.empty[String])) { + case (Some(accum), Some(value)) => Some(accum :+ value) + case _ => None + } + } + } + + lazy val convert: PartialFunction[Expression, String] = { + case In(a: Attribute, ExtractableLiterals(values)) if !varcharKeys.contains(a.name) => --- End diff -- cc @gatorsmile , any concerns to not do it?
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