[SPARK-57418][DOCS] Add singleVariantColumn option to CSV, JSON, and XML data source options tables#56469
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…XML data source options tables
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What changes were proposed in this pull request?
Added the missing
singleVariantColumnoption to the Data Source Options tables in:docs/sql-data-sources-csv.mddocs/sql-data-sources-json.mddocs/sql-data-sources-xml.mdThe option was introduced in Spark 4.1.0 (SPARK-51298 for CSV, also supported for JSON and XML) but was never documented in the reference tables. It is defined as a shared constant in
DataSourceOptions.scalaand consumed byCSVOptions,JSONOptions, andXmlOptions.Why are the changes needed?
Users have no way to discover
singleVariantColumnfrom the official data source options reference. The option allows ingesting an entire CSV/JSON/XML record as a singleVariantTypecolumn instead of parsing it into individual fields — a key use case for the Variant type introduced in Spark 4.0.Does this PR introduce any user-facing change?
No. Documentation only.
How was this patch tested?
No code change — documentation only. Verified the option is defined in
DataSourceOptions.scala(line 78),CSVOptions.scala(line 338),JSONOptions.scala(line 215), andXmlOptions.scala(line 194).Was this patch authored or co-authored using generative AI tooling?
Generated-by: Claude (Anthropic)