nsivabalan commented on issue #4914:
URL: https://github.com/apache/hudi/issues/4914#issuecomment-1054853406
schema has to be backwards compatible and new fields has to be added towards
the end. From your example, the field of interest is "name" which is in the
middle.
```
inputDF = spark.createDataFrame(
[
("100", "AAA", "2015-01-01", "2015-01-01T13:51:39.340396Z",
"2015-01-01"),
("101", "BBB", "2015-01-01", "2015-01-01T12:14:58.597216Z",
"2015-01-01"),
("102", "CCC", "2015-01-01", "2015-01-01T13:51:40.417052Z",
"2015-01-01"),
("103", "DDD", "2015-01-01", "2015-01-01T13:51:40.519832Z",
"2015-01-01"),
("104", "EEE", "2015-01-01", "2015-01-01T12:15:00.512679Z",
"2015-01-01"),
("105", "FFF", "2015-01-01", "2015-01-01T13:51:42.248818Z",
"2015-01-01")
],
["id", "name", "creation_date", "last_update_time", "creation_date_1"]
)
table_name = "first_hudi_table"
table_path = f"s3://<bucket_name>/Hudi/{table_name}"
hudiOptions = {
'hoodie.table.name': table_name,
'hoodie.datasource.write.recordkey.field': 'id',
'hoodie.datasource.write.precombine.field': 'last_update_time',
}
print(table_name, table_path)
inputDF.write\
.format('hudi')\
.option('hoodie.datasource.write.operation', 'insert')\
.options(**hudiOptions)\
.mode('overwrite')\
.save(table_path)
inputDF = spark.createDataFrame(
[
("100", "AAA", "2015-01-01", "2015-01-01T13:51:39.340396Z"),
("101", "BBB", "2015-01-01", "2015-01-01T12:14:58.597216Z"),
("102", "CCC", "2015-01-01", "2015-01-01T13:51:40.417052Z"),
("103", "DDD", "2015-01-01", "2015-01-01T13:51:40.519832Z"),
("104", "EEE", "2015-01-01", "2015-01-01T12:15:00.512679Z"),
("105", "FFF", "2015-01-01", "2015-01-01T13:51:42.248818Z")
],
["id", "name", "creation_date", "last_update_time"]
)
hudiOptions = {
'hoodie.table.name': table_name,
'hoodie.datasource.write.recordkey.field': 'id',
'hoodie.datasource.write.precombine.field': 'last_update_time',
'hoodie.datasource.write.reconcile.schema': 'true',
}
inputDF.write\
.format('hudi')\
.option('hoodie.datasource.write.operation', 'insert')\
.options(**hudiOptions)\
.mode('append')\
.save(table_path)
```
This works.
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