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ORC-2149: Supports merging multiple ORC files with the same schema into multiple ORC files #2601

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ORC-2149: Supports merging multiple ORC files with the same schema into multiple ORC files #2601

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cb3c041
Supports merging multiple ORC files with the same schema into multipl…
QianyongY Apr 15, 2026
5af4860
Enhance maxSize option validation and output directory checks in Merg…
QianyongY Apr 20, 2026
2334079
Add --preserveStructure, deterministic input sorting and --overwrite …
QianyongY Apr 22, 2026
d30754d
fix style
QianyongY Apr 22, 2026
fef080e
Adjust merging logic to ensure contiguous part file naming and improv…
QianyongY Apr 22, 2026
5e235bf
Add output path validation to prevent overlap with input roots in Mer…
QianyongY Apr 23, 2026
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2 changes: 1 addition & 1 deletion java/tools/src/java/org/apache/orc/tools/Driver.java
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Original file line number Diff line number Diff line change
Expand Up @@ -93,7 +93,7 @@ public static void main(String[] args) throws Exception {
System.err.println(" data - print the data from the ORC file");
System.err.println(" json-schema - scan JSON files to determine their schema");
System.err.println(" key - print information about the keys");
System.err.println(" merge - merge multiple ORC files into a single ORC file");
System.err.println(" merge - merge multiple ORC files into one or more ORC files");
System.err.println(" meta - print the metadata about the ORC file");
System.err.println(" scan - scan the ORC file");
System.err.println(" sizes - list size on disk of each column");
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