mapleFU commented on code in PR #37400:
URL: https://github.com/apache/arrow/pull/37400#discussion_r2158234804


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cpp/src/parquet/properties.h:
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@@ -909,6 +993,19 @@ class PARQUET_EXPORT WriterProperties {
     return false;
   }
 
+  bool bloom_filter_enabled() const {

Review Comment:
   If any bloom filter exists, a `bloom_filter_builder_` should be created. 
It's a bit like below. But I don't have a `bloom_filter_enabled` by default
   
   ```c++
     bool page_index_enabled() const {
       if (default_column_properties_.page_index_enabled()) {
         return true;
       }
       for (const auto& item : column_properties_) {
         if (item.second.page_index_enabled()) {
           return true;
         }
       }
       return false;
     }
   ```



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