ghanse commented on code in PR #58175:
URL: https://github.com/apache/spark/pull/58175#discussion_r3905883487
##########
docs/sql-data-sources-csv.md:
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@@ -225,7 +225,13 @@ Data source options of CSV can be set via:
<tr>
<td><code>singleVariantColumn</code></td>
<td>(none)</td>
- <td>If specified, the entire CSV record is parsed and stored as a single
column of <code>VariantType</code> with the given column name, instead of being
split into individual fields.</td>
+ <td>If specified, the entire CSV record is parsed and stored as a single
column of <code>VariantType</code> with the given column name, instead of being
split into individual fields. By default, scalar values are type-inferred
inside the variant (for example, <code>"0001"</code> becomes the integer
<code>1</code>). To keep every scalar as a string instead, set
<code>variantRespectInferSchema</code> to <code>true</code> and
<code>inferSchema</code> to <code>false</code>.</td>
+ <td>read</td>
+ </tr>
+ <tr>
+ <td><code>variantRespectInferSchema</code></td>
Review Comment:
XML is similar (interacts with schema inference settings) but uses a
session-level config instead of a reader config. I think reader config is
probably the safer, more isolated choice?
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