Github user mallman commented on a diff in the pull request: https://github.com/apache/spark/pull/17633#discussion_r126023747 --- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveShim.scala --- @@ -589,18 +590,40 @@ 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} ${a.name}" - case op @ BinaryComparison(a: Attribute, Literal(v, _: StringType)) - if !varcharKeys.contains(a.name) => - s"""${a.name} ${op.symbol} ${quoteStringLiteral(v.toString)}""" - case op @ BinaryComparison(Literal(v, _: StringType), a: Attribute) - if !varcharKeys.contains(a.name) => - s"""${quoteStringLiteral(v.toString)} ${op.symbol} ${a.name}""" - }.mkString(" and ") + def isExtractable(expr: Expression): Boolean = + expr match { + case Literal(_, _: IntegralType) | Literal(_, _: StringType) => true + case _ => false + } + + def extractValue(expr: Expression): String = + expr match { + case Literal(v, _: IntegralType) => v.toString + case Literal(v, _: StringType) => quoteStringLiteral(v.toString) + } + + lazy val convert: PartialFunction[Expression, String] = + { + case In(a: Attribute, exprs) + if !varcharKeys.contains(a.name) && exprs.forall(isExtractable) => + val or = + exprs + .map(expr => s"${a.name} = ${extractValue(expr)}") + .reduce(_ + " or " + _) + "(" + or + ")" + case op @ BinaryComparison(a: Attribute, expr2) + if !varcharKeys.contains(a.name) && isExtractable(expr2) => + s"${a.name} ${op.symbol} ${extractValue(expr2)}" + case op @ BinaryComparison(expr1, a: Attribute) + if !varcharKeys.contains(a.name) && isExtractable(expr1) => + s"${extractValue(expr1)} ${op.symbol} ${a.name}" + case op @ And(expr1, expr2) => + s"(${convert(expr1)} and ${convert(expr2)})" --- End diff -- @viirya This is why we wrap the call to `convert` in a `Try` at the end of the method.
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