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Core Parse: DFSORT / SyncSort Control Card Data Lineage #3979

Description

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Market Context

Between 30% and 40% of mainframe JCL batch cycles consist of heavy data transformations using SyncSort or DFSORT parameter cards. Modernizing these batch windows into Snowflake or Databricks ETL pipelines is a multi-billion dollar industry.

The Gap

GitGalaxy successfully parses the JCL step calling SORT, but it treats the embedded SYSIN control cards as opaque text. We lose visibility into the exact fields, byte offsets, and transformation logic of the data.

Required Action

Build a parameter-card parser for DFSORT/SyncSort that explicitly maps SORT FIELDS=..., INCLUDE COND=..., and OUTREC transformation statements. Extracting these parameters will eliminate a massive "dark matter" gap in enterprise ETL batch lineage mapping.

Activity

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