pgaref commented on a change in pull request #1286:
URL: https://github.com/apache/hive/pull/1286#discussion_r578636105
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File path: ql/src/java/org/apache/hadoop/hive/ql/parse/TezCompiler.java
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@@ -1589,13 +1588,17 @@ private void
removeSemijoinsParallelToMapJoin(OptimizeTezProcContext procCtx)
List<ExprNodeDesc> keyDesc =
selectedMJOp.getConf().getKeys().get(posBigTable);
ExprNodeColumnDesc keyCol = (ExprNodeColumnDesc) keyDesc.get(0);
- String realTSColName = OperatorUtils.findTableColNameOf(selectedMJOp,
keyCol.getColumn());
- if (realTSColName != null) {
+ ExprNodeColumnDesc originTSColExpr =
OperatorUtils.findTableOriginColExpr(keyCol, selectedMJOp, tsOp);
+ if (originTSColExpr == null) {
+ LOG.warn("ProbeDecode could not find origTSCol for mjCol: {} with MJ
Schema: {}",
Review comment:
Yeah, always had this in the back of my head. Opened HIVE-24793 to track
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