Github user davies commented on the pull request:
https://github.com/apache/spark/pull/10855#issuecomment-176963141
```
/* 001 */
/* 002 */ public Object generate(Object[] references) {
/* 003 */ return new GeneratedIterator(references);
/* 004 */ }
/* 005 */
/* 006 */ class GeneratedIterator extends
org.apache.spark.sql.execution.BufferedRowIterator {
/* 007 */
/* 008 */ private Object[] references;
/* 009 */ private boolean TungstenAggregate_initAgg0;
/* 010 */ private
org.apache.spark.sql.execution.aggregate.TungstenAggregate
TungstenAggregate_plan1;
/* 011 */ private
org.apache.spark.sql.execution.UnsafeFixedWidthAggregationMap
TungstenAggregate_hashMap2;
/* 012 */ private org.apache.spark.unsafe.KVIterator
TungstenAggregate_mapIter3;
/* 013 */ private UnsafeRow TungstenAggregate_result10;
/* 014 */ private
org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder
TungstenAggregate_holder11;
/* 015 */ private
org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter
TungstenAggregate_rowWriter12;
/* 016 */ private boolean Range_initRange15;
/* 017 */ private long Range_partitionEnd16;
/* 018 */ private long Range_number17;
/* 019 */ private boolean Range_overflow18;
/* 020 */ private UnsafeRow TungstenAggregate_result28;
/* 021 */ private
org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder
TungstenAggregate_holder29;
/* 022 */ private
org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter
TungstenAggregate_rowWriter30;
/* 023 */
/* 024 */ private void TungstenAggregate_doAggregateWithKeys14() throws
java.io.IOException {
/* 025 */
/* 026 */ // initialize Range
/* 027 */ if (!Range_initRange15) {
/* 028 */ Range_initRange15 = true;
/* 029 */ if (input.hasNext()) {
/* 030 */ initRange(((InternalRow) input.next()).getInt(0));
/* 031 */ } else {
/* 032 */ return;
/* 033 */ }
/* 034 */ }
/* 035 */
/* 036 */ while (!Range_overflow18 && Range_number17 <
Range_partitionEnd16) {
/* 037 */ long Range_value19 = Range_number17;
/* 038 */ Range_number17 += 1L;
/* 039 */ if (Range_number17 < Range_value19 ^ 1L < 0) {
/* 040 */ Range_overflow18 = true;
/* 041 */ }
/* 042 */
/* 043 */ /* (input[0, bigint] & 65535) */
/* 044 */ /* input[0, bigint] */
/* 045 */
/* 046 */ /* 65535 */
/* 047 */
/* 048 */ long Project_value21 = -1L;
/* 049 */ Project_value21 = Range_value19 & 65535L;
/* 050 */
/* 051 */
/* 052 */ // generate grouping key
/* 053 */
/* 054 */
/* 055 */
/* 056 */ /* input[0, bigint] */
/* 057 */
/* 058 */ TungstenAggregate_rowWriter30.write(0, Project_value21);
/* 059 */
/* 060 */
/* 061 */ UnsafeRow TungstenAggregate_aggBuffer32 =
TungstenAggregate_hashMap2.getAggregationBufferFromUnsafeRow(TungstenAggregate_result28);
/* 062 */ if (TungstenAggregate_aggBuffer32 == null) {
/* 063 */ // failed to allocate the first page
/* 064 */ throw new OutOfMemoryError("No enough memory for
aggregation");
/* 065 */ }
/* 066 */
/* 067 */ // evaluate aggregate function
/* 068 */
/* 069 */ // update aggregate buffer
/* 070 */
/* 071 */
/* 072 */
/* 073 */ }
/* 074 */
/* 075 */
/* 076 */ TungstenAggregate_mapIter3 =
TungstenAggregate_hashMap2.iterator();
/* 077 */ }
/* 078 */
/* 079 */
/* 080 */ private void initRange(int idx) {
/* 081 */ java.math.BigInteger index =
java.math.BigInteger.valueOf(idx);
/* 082 */ java.math.BigInteger numSlice =
java.math.BigInteger.valueOf(1L);
/* 083 */ java.math.BigInteger numElement =
java.math.BigInteger.valueOf(20971520L);
/* 084 */ java.math.BigInteger step = java.math.BigInteger.valueOf(1L);
/* 085 */ java.math.BigInteger start = java.math.BigInteger.valueOf(0L);
/* 086 */
/* 087 */ java.math.BigInteger st =
index.multiply(numElement).divide(numSlice).multiply(step).add(start);
/* 088 */ if
(st.compareTo(java.math.BigInteger.valueOf(Long.MAX_VALUE)) > 0) {
/* 089 */ Range_number17 = Long.MAX_VALUE;
/* 090 */ } else if
(st.compareTo(java.math.BigInteger.valueOf(Long.MIN_VALUE)) < 0) {
/* 091 */ Range_number17 = Long.MIN_VALUE;
/* 092 */ } else {
/* 093 */ Range_number17 = st.longValue();
/* 094 */ }
/* 095 */
/* 096 */ java.math.BigInteger end =
index.add(java.math.BigInteger.ONE).multiply(numElement).divide(numSlice)
/* 097 */ .multiply(step).add(start);
/* 098 */ if
(end.compareTo(java.math.BigInteger.valueOf(Long.MAX_VALUE)) > 0) {
/* 099 */ Range_partitionEnd16 = Long.MAX_VALUE;
/* 100 */ } else if
(end.compareTo(java.math.BigInteger.valueOf(Long.MIN_VALUE)) < 0) {
/* 101 */ Range_partitionEnd16 = Long.MIN_VALUE;
/* 102 */ } else {
/* 103 */ Range_partitionEnd16 = end.longValue();
/* 104 */ }
/* 105 */ }
/* 106 */
/* 107 */
/* 108 */ public GeneratedIterator(Object[] references) {
/* 109 */ this.references = references;
/* 110 */ TungstenAggregate_initAgg0 = false;
/* 111 */ this.TungstenAggregate_plan1 =
(org.apache.spark.sql.execution.aggregate.TungstenAggregate) references[0];
/* 112 */ TungstenAggregate_hashMap2 =
TungstenAggregate_plan1.createHashMap();
/* 113 */
/* 114 */ TungstenAggregate_result10 = new UnsafeRow(1);
/* 115 */ this.TungstenAggregate_holder11 = new
org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder(TungstenAggregate_result10,
0);
/* 116 */ this.TungstenAggregate_rowWriter12 = new
org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter(TungstenAggregate_holder11,
1);
/* 117 */ Range_initRange15 = false;
/* 118 */ Range_partitionEnd16 = 0L;
/* 119 */ Range_number17 = 0L;
/* 120 */ Range_overflow18 = false;
/* 121 */ TungstenAggregate_result28 = new UnsafeRow(1);
/* 122 */ this.TungstenAggregate_holder29 = new
org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder(TungstenAggregate_result28,
0);
/* 123 */ this.TungstenAggregate_rowWriter30 = new
org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter(TungstenAggregate_holder29,
1);
/* 124 */ }
/* 125 */
/* 126 */ protected void processNext() throws java.io.IOException {
/* 127 */
/* 128 */ if (!TungstenAggregate_initAgg0) {
/* 129 */ TungstenAggregate_initAgg0 = true;
/* 130 */ TungstenAggregate_doAggregateWithKeys14();
/* 131 */ }
/* 132 */
/* 133 */ // output the result
/* 134 */ while (TungstenAggregate_mapIter3.next()) {
/* 135 */ UnsafeRow TungstenAggregate_aggKey4 = (UnsafeRow)
TungstenAggregate_mapIter3.getKey();
/* 136 */ UnsafeRow TungstenAggregate_aggBuffer5 = (UnsafeRow)
TungstenAggregate_mapIter3.getValue();
/* 137 */
/* 138 */ /* input[0, bigint] */
/* 139 */ long TungstenAggregate_value7 =
TungstenAggregate_aggKey4.getLong(0);
/* 140 */
/* 141 */ /* input[0, bigint] */
/* 142 */
/* 143 */ TungstenAggregate_rowWriter12.write(0,
TungstenAggregate_value7);
/* 144 */ currentRow = TungstenAggregate_result10;
/* 145 */ return;
/* 146 */
/* 147 */
/* 148 */ }
/* 149 */
/* 150 */ TungstenAggregate_hashMap2.free();
/* 151 */
/* 152 */ }
/* 153 */ }
/* 154 */
```
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
