ihuzenko commented on a change in pull request #1954: DRILL-7509: Incorrect
TupleSchema is created for DICT column when querying Parquet files
URL: https://github.com/apache/drill/pull/1954#discussion_r366432945
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/FilterEvaluatorUtils.java
##########
@@ -113,7 +113,9 @@ public static RowsMatch matches(LogicalExpression expr,
Map<SchemaPath, ColumnSt
StatisticsProvider<T> rangeExprEvaluator = new
StatisticsProvider(columnsStatistics, rowCount);
rowsMatch = parquetPredicate.matches(rangeExprEvaluator);
}
- return rowsMatch == RowsMatch.ALL && isRepeated(schemaPathsInExpr,
fileMetadata) ? RowsMatch.SOME : rowsMatch;
+ return rowsMatch == RowsMatch.ALL
+ && (isRepeated(schemaPathsInExpr, fileMetadata) ||
isDictOrRepeatedMapChild(schemaPathsInExpr, fileMetadata))
Review comment:
It seems like both methods ```isRepeated(schemaPathsInExpr, fileMetadata)```
and ```isDictOrRepeatedMapChild(schemaPathsInExpr, fileMetadata))``` only
exists to serve one specific purpose - avoid ```RowsMatch.ALL``` when
necessary. Maybe it makes sense to combine both methods into one and rename it?
Also, the check could be placed inside the ``` if (parquetPredicate != null)
{``` declared above.
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