Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21537#discussion_r202718932
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
---
@@ -825,43 +832,43 @@ case class Cast(child: Expression, dataType:
DataType, timeZoneId: Option[String
private[this] def castToStringCode(from: DataType, ctx: CodegenContext):
CastFunction = {
from match {
case BinaryType =>
- (c, evPrim, evNull) => s"$evPrim = UTF8String.fromBytes($c);"
+ (c, evPrim, evNull) => code"$evPrim = UTF8String.fromBytes($c);"
case DateType =>
- (c, evPrim, evNull) => s"""$evPrim = UTF8String.fromString(
+ (c, evPrim, evNull) => code"""$evPrim = UTF8String.fromString(
org.apache.spark.sql.catalyst.util.DateTimeUtils.dateToString($c));"""
case TimestampType =>
- val tz = ctx.addReferenceObj("timeZone", timeZone)
- (c, evPrim, evNull) => s"""$evPrim = UTF8String.fromString(
+ val tz = JavaCode.global(ctx.addReferenceObj("timeZone",
timeZone), timeZone.getClass)
--- End diff --
ditto, will `ctx.addReferenceObj` return JavaCode eventually?
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