codejoyan edited a comment on issue #2592:
URL: https://github.com/apache/hudi/issues/2592#issuecomment-785121095
The below succeeds. I removed the decimal fields only and was able to save
```
scala> val inputDF = spark.read.format("csv").option("header",
"true").load("hdfs://XXXXXhw00ha/user/joyan/test_data.csv")
inputDF: org.apache.spark.sql.DataFrame = [col_1: string, col_2: string ...
12 more fields]
scala> val formattedDF = inputDF.selectExpr("col_1", "cast(col_2 as integer)
col_2",
| "cast(col_3 as short) col_3", "col_4", "col_5", "cast(col_6 as byte)
col_6",
| "cast(col_9 as timestamp) col_9", "col_10", "cast(col_11 as
timestamp) col_11",
| "col_12", "cntry_cd", "cast(bus_dt as date) bus_dt")
formattedDF: org.apache.spark.sql.DataFrame = [col_1: string, col_2: int ...
10 more fields]
scala> val transformedDF = formattedDF.withColumn("partitionpath",
concat(lit("cntry_cd="), col("cntry_cd"), lit("/bus_dt="), col("bus_dt")))
transformedDF: org.apache.spark.sql.DataFrame = [col_1: string, col_2: int
... 11 more fields]
scala> transformedDF.show
+--------------------+-----+-----+-----+-----+-----+--------------------+-----------+--------------------+-----------+--------+----------+--------------------+
| col_1|col_2|col_3|col_4|col_5|col_6| col_9|
col_10| col_11| col_12|cntry_cd| bus_dt|
partitionpath|
+--------------------+-----+-----+-----+-----+-----+--------------------+-----------+--------------------+-----------+--------+----------+--------------------+
|7IN00716079317820...| 716| 3| AB| INR| null|2021-02-14
20:23:...|useridjsb91|2021-02-14 20:23:...|useridjsb91|
IN|2021-02-01|cntry_cd=IN/bus_d...|
|7IN00716079317820...| 716| 2| AB| INR| null|2021-02-14
20:23:...|useridjsb91|2021-02-14 20:23:...|useridjsb91|
IN|2021-02-01|cntry_cd=IN/bus_d...|
|7IN00716079317820...| 716| 1| AB| INR| null|2021-02-14
20:23:...|useridjsb91|2021-02-14 20:23:...|useridjsb91|
IN|2021-02-01|cntry_cd=IN/bus_d...|
|AU700716079381819...| 5700| 5| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91|
IN|2021-02-02|cntry_cd=IN/bus_d...|
|AU700716079381819...| 5700| 6| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91|
IN|2021-02-02|cntry_cd=IN/bus_d...|
|AU700716079381819...| 5700| 4| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91|
AU|2021-02-01|cntry_cd=AU/bus_d...|
|AU700716079381819...| 5700| 3| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91|
AU|2021-02-01|cntry_cd=AU/bus_d...|
|AU700716079381819...| 5700| 1| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91|
AU|2021-02-01|cntry_cd=AU/bus_d...|
+--------------------+-----+-----+-----+-----+-----+--------------------+-----------+--------------------+-----------+--------+----------+--------------------+
scala> transformedDF.write.format("org.apache.hudi").
| options(getQuickstartWriteConfigs).
| option(DataSourceWriteOptions.PRECOMBINE_FIELD_OPT_KEY, "col_9").
| option(DataSourceWriteOptions.RECORDKEY_FIELD_OPT_KEY,
"col_2,col_1,col_3").
| option(DataSourceWriteOptions.PARTITIONPATH_FIELD_OPT_KEY,
"partitionpath").
| option(DataSourceWriteOptions.KEYGENERATOR_CLASS_OPT_KEY,
"org.apache.hudi.keygen.ComplexKeyGenerator").
| option("hoodie.upsert.shuffle.parallelism","2").
| option("hoodie.insert.shuffle.parallelism","2").
| option(HoodieWriteConfig.TABLE_NAME, "targetTableHudi").
| mode(SaveMode.Append).
| save(targetPath)
scala> formattedDF.printSchema
root
|-- col_1: string (nullable = true)
|-- col_2: integer (nullable = true)
|-- col_3: short (nullable = true)
|-- col_4: string (nullable = true)
|-- col_5: string (nullable = true)
|-- col_6: byte (nullable = true)
|-- col_9: timestamp (nullable = true)
|-- col_10: string (nullable = true)
|-- col_11: timestamp (nullable = true)
|-- col_12: string (nullable = true)
|-- cntry_cd: string (nullable = true)
|-- bus_dt: date (nullable = true)
scala> formattedDF.show
+--------------------+-----+-----+-----+-----+-----+--------------------+-----------+--------------------+-----------+--------+----------+
| col_1|col_2|col_3|col_4|col_5|col_6| col_9|
col_10| col_11| col_12|cntry_cd| bus_dt|
+--------------------+-----+-----+-----+-----+-----+--------------------+-----------+--------------------+-----------+--------+----------+
|7IN00716079317820...| 716| 3| AB| INR| null|2021-02-14
20:23:...|useridjsb91|2021-02-14 20:23:...|useridjsb91| IN|2021-02-01|
|7IN00716079317820...| 716| 2| AB| INR| null|2021-02-14
20:23:...|useridjsb91|2021-02-14 20:23:...|useridjsb91| IN|2021-02-01|
|7IN00716079317820...| 716| 1| AB| INR| null|2021-02-14
20:23:...|useridjsb91|2021-02-14 20:23:...|useridjsb91| IN|2021-02-01|
|AU700716079381819...| 5700| 5| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91| IN|2021-02-02|
|AU700716079381819...| 5700| 6| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91| IN|2021-02-02|
|AU700716079381819...| 5700| 4| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91| AU|2021-02-01|
|AU700716079381819...| 5700| 3| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91| AU|2021-02-01|
|AU700716079381819...| 5700| 1| AB| INR| null|2021-02-14
20:06:...|useridjsb91|2021-02-14 20:06:...|useridjsb91| AU|2021-02-01|
+--------------------+-----+-----+-----+-----+-----+--------------------+-----------+--------------------+-----------+--------+----------+
scala> val testSnapshotDF = spark.read.format("org.apache.hudi").
| load(targetPath + "/*/*/*")
21/02/24 14:36:27 WARN DefaultSource: Loading Base File Only View.
testSnapshotDF: org.apache.spark.sql.DataFrame = [_hoodie_commit_time:
string, _hoodie_commit_seqno: string ... 16 more fields]
scala> testSnapshotDF.createOrReplaceTempView("test_hudi_ro")
scala> spark.sql("select cntry_cd,bus_dt,count(1) from test_hudi_ro group by
cntry_cd,bus_dt").show
+--------+----------+--------+
|cntry_cd| bus_dt|count(1)|
+--------+----------+--------+
| IN|2021-02-01| 3|
| AU|2021-02-01| 3|
| IN|2021-02-02| 2|
+--------+----------+--------+
```
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