Avoid applying bloom filters if we are casting columns

Mytherin · Feb 11, 2025 · a54c946 · a54c946
1 parent d769821
commit a54c946
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/extension/parquet/parquet_reader.cpp b/extension/parquet/parquet_reader.cpp
@@ -873,7 +873,8 @@ void ParquetReader::PrepareRowGroupBuffer(ParquetReaderScanState &state, idx_t c
 			// TODO we might not have stats but STILL a bloom filter so move this up
 			// check the bloom filter if present
 			bool is_generated_column = column_reader.ColumnIndex() >= group.columns.size();
-			if (!column_reader.Type().IsNested() && !is_generated_column &&
+			bool is_cast = column_reader.Schema().schema_type == ::duckdb::ParquetColumnSchemaType::CAST;
+			if (!column_reader.Type().IsNested() && !is_generated_column && !is_cast &&
 			    ParquetStatisticsUtils::BloomFilterSupported(column_reader.Type().id()) &&
 			    ParquetStatisticsUtils::BloomFilterExcludes(filter,
 			                                                group.columns[column_reader.ColumnIndex()].meta_data,