Data Analysis
Parquet 布隆过滤器/区间图/字典与列统计剪枝评估器
解码 Parquet thrift footer 并量化谓词下推剪枝：区间图 min/max、split-block 布隆过滤器（XXH64）、字典比率与编码，按行组给出示例 WHERE 子句的剪枝节省估算。
html· HTML 结果打开工具
快速开始
用三种语言从你的代码中调用此工具。
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/parquet-bloom-filter-zonemap-dictionary-and-column-statistics-pruner-evaluator' \
-H 'Content-Type: application/json' \
-d '{"filename":"parquetFile.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/zh/api/tools/parquet-bloom-filter-zonemap-dictionary-and-column-statistics-pruner-evaluator' \
-F 'parquetFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'predicates=id = 75
id > 60
name = 'zeta''