Spark: Fix RewriteManifestsSparkAction sortBy() for dotted partition field names - #17428
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Spark: Fix RewriteManifestsSparkAction sortBy() for dotted partition field names#17428agnes-xinyi-lu wants to merge 2 commits into
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…partition field names
agnes-xinyi-lu
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uros-b
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How about spark/v4.0 and spark/v3.5? Shall we fix there too?
uros-b
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Jul 30, 2026
| Column[] partitionColumns = | ||
| partitionFieldClustering.stream() | ||
| .map(p -> col(DATA_FILE_PARTITION_COLUMN_NAME + "." + p)) | ||
| .map(p -> col(DATA_FILE_PARTITION_COLUMN_NAME + ".`" + p + "`")) |
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The backtick quoting is written as
". + p + ""
without escaping an embedded backtick in p.
A partition field name containing a backtick, e.g.
"a`b"
produces a malformed col() expression and an AnalysisException at runtime.
The correct idiom would be
p.replace("", "``")
e.g. used by SparkSchemaUtil.indexQuotedNameById.
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Fixes RewriteManifestsSparkAction.sortBy() to backtick-quote partition field names, so a literal . in a partition field's name (e.g. from partitioning on a nested source column) isn't misparsed as nested-field access. Adds a regression test.
For issue #17425