parseJson implementation in VariantBuilder #3414
Description
Describe the enhancement requested
Every consumer of parquet-variant currently has to implement their own
JSON-to-Variant parsing (Spark, Kafka Connect, Flink, etc.). This adds
native parseJson() static methods to VariantBuilder using Jackson
streaming parser, ported from Apache Spark's production-proven logic.
- Single-pass streaming (no intermediate JsonNode tree)
- Smallest integer type selection (byte/short/int/long)
- Decimal-first float handling, double fallback for scientific notation
- Overloads for String input and pre-positioned JsonParser
https://github.com/apache/spark/tree/master/common/variant
Component(s)
Core