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[Spark-14138][SQL] Fix generated SpecificColumnarIterator code can exceed JVM size limit for cached DataFrames #11984

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[Spark-14138][SQL] Fix generated SpecificColumnarIterator code can exceed JVM size limit for cached DataFrames #11984

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ab67d33
make code size of hasNext() smaller by preparing get*Acceessor() methods
kiszk Mar 27, 2016
fea2a52
add test case
kiszk Mar 27, 2016
e56406e
fix scalastyle errors
kiszk Mar 27, 2016
60f6719
fix scalastyle error
kiszk Mar 27, 2016
226bad5
use String as a key instead of DataType object
kiszk Mar 27, 2016
f3307a7
fix boundary condition
kiszk Mar 27, 2016
9346793
add a case that does not generate a new method, but the number of col…
kiszk Mar 27, 2016
beb9840
reduce threadhold of # of calls in a method to allow HotSpot to compi…
kiszk Mar 30, 2016
16cf602
adressed Davies's comments
kiszk Mar 31, 2016
a310bfc
fix scala style errors
kiszk Mar 31, 2016
c1acf82
nit: fix number in a comment
kiszk Mar 31, 2016
60cebd5
addessed Davies's comments
kiszk Mar 31, 2016
3a05ddf
fix scala style errors
kiszk Mar 31, 2016
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fix scala style errors
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@kiszk
kiszk committed Mar 31, 2016
commit a310bfc960f34f0ac6a61937a5519ac05ca52f94
12 changes: 6 additions & 6 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/GenerateColumnAccessor.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -95,14 +95,14 @@ object GenerateColumnAccessor extends CodeGenerator[Seq[DataType], ColumnarItera

val createCode = dt match {
case t if ctx.isPrimitiveType(dt) =>
s"$accessorName = new $accessorCls(ByteBuffer.wrap(buffers[$index]).order(nativeOrder));"
case NullType | StringType | BinaryType =>
s"$accessorName = new $accessorCls(ByteBuffer.wrap(buffers[$index]).order(nativeOrder));"
case other =>
s"""$accessorName = new $accessorCls(ByteBuffer.wrap(buffers[$index]).order(nativeOrder),
s"$accessorName = new $accessorCls(ByteBuffer.wrap(buffers[$index]).order(nativeOrder));"
case NullType | StringType | BinaryType =>
s"$accessorName = new $accessorCls(ByteBuffer.wrap(buffers[$index]).order(nativeOrder));"
case other =>
s"""$accessorName = new $accessorCls(ByteBuffer.wrap(buffers[$index]).order(nativeOrder),
(${dt.getClass.getName}) columnTypes[$index]);"""
}

val extract = s"$accessorName.extractTo(mutableRow, $index);"
val patch = dt match {
case DecimalType.Fixed(p, s) if p > Decimal.MAX_LONG_DIGITS =>
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