OIiveirra commented on code in PR #68161:
URL: https://github.com/apache/doris/pull/68161#discussion_r4080700529
##########
fe/be-java-extensions/paimon-scanner/src/main/java/org/apache/doris/paimon/PaimonJniScanner.java:
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@@ -192,11 +196,52 @@ private void initReader() throws IOException {
fields.length, paimonAllFieldNames.size()));
}
int[] projected = getProjected();
+ RowType readType = requiresDatetimeV2PrecisionRepair
+ ? createSafeTimestampReadType(table.rowType()) :
table.rowType();
readBuilder.withProjection(projected);
- readBuilder.withFilter(getPredicates());
+ if (requiresDatetimeV2PrecisionRepair) {
+ // withProjection() derives a read type from the table schema and
would otherwise
+ // replace the widened timestamp types with the evolved
(lower-precision) schema.
+ readBuilder.withReadType(readType.project(projected));
+ }
+ readBuilder.withFilter(requiresDatetimeV2PrecisionRepair
+ ? Collections.emptyList() : getPredicates());
Review Comment:
Fixed in c637de5659b and verified in the latest head. PaimonScanPlanProvider
now detects timestamp descendants in the table RowType and withholds affected
predicates from FE split planning; Doris evaluates the residual after JNI
repair. The added leading-zero Parquet/ORC fixture and predicate regression
pass in the personal external suite.
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