pitrou commented on code in PR #40987:
URL: https://github.com/apache/arrow/pull/40987#discussion_r1551927923
##########
java/vector/src/main/java/org/apache/arrow/vector/ipc/JsonFileWriter.java:
##########
@@ -208,6 +210,10 @@ private void writeBatch(VectorSchemaRoot recordBatch)
throws IOException {
}
private void writeFromVectorIntoJson(Field field, FieldVector vector) throws
IOException {
+ if (vector instanceof ExtensionTypeVector) {
Review Comment:
Ah! It's possible that the integration tests are only every reading JSON
files from Java, then. The JSON files are typically generated by the Python
machinery I quoted an excerpt from above.
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