sollhui commented on code in PR #65127:
URL: https://github.com/apache/doris/pull/65127#discussion_r3557308939
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fe/fe-core/src/main/java/org/apache/doris/nereids/load/NereidsLoadScanProvider.java:
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@@ -372,7 +373,12 @@ private void
fillContextExprMap(List<NereidsImportColumnDesc> columnDescList, Ne
// Use real column type for arrow/native format, other formats
read as varchar first
if (fileFormatType == TFileFormatType.FORMAT_ARROW
|| fileFormatType == TFileFormatType.FORMAT_NATIVE) {
- slotColumn = new Column(realColName,
colToType.get(realColName), true);
+ Type slotType = tblColumn == null ?
colToType.get(realColName) : tblColumn.getType();
Review Comment:
No. tbl.getColumn(columnName) uses the table's case-insensitive nameToColumn
map over the full schema, while colToType is built from getBaseSchema() and is
only a subset. Therefore, if tblColumn == null, colToType.get(realColName)
cannot return a valid type. This fallback only results in the explicit Unknown
column error below.
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