EmmyMiao87 commented on a change in pull request #1695: Refactor alter job
URL: https://github.com/apache/incubator-doris/pull/1695#discussion_r319758050
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File path: fe/src/main/java/org/apache/doris/planner/BrokerScanNode.java
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@@ -225,62 +229,73 @@ private void initParams(ParamCreateContext context)
throws AnalysisException, Us
* @throws UserException
*/
private void initColumns(ParamCreateContext context) throws UserException {
- // This tuple descriptor is used for origin file
- TupleDescriptor srcTupleDesc =
analyzer.getDescTbl().createTupleDescriptor();
- context.tupleDescriptor = srcTupleDesc;
- Map<String, SlotDescriptor> slotDescByName = Maps.newHashMap();
- context.slotDescByName = slotDescByName;
-
- TBrokerScanRangeParams params = context.params;
- // there are no columns transform
+ List<String> sourceFileColumns = context.fileGroup.getFileFieldNames();
Review comment:
Why don't you analyze the `sourceFileColumns ` and `pathColumns ` in
`DataDescription` ? The `originColumnNameToExprList ` is the finally columns
expr including source file columns, path columns, and column expr.
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