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https://issues.apache.org/jira/browse/SPARK-24766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16539420#comment-16539420
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Yuming Wang edited comment on SPARK-24766 at 7/11/18 1:24 AM:
--------------------------------------------------------------
It works after upgrade built-in Hive to 2.3.2 and upgrade parquet to 1.10.0.
{noformat}
java -jar ./parquet-tools/target/parquet-tools-1.10.1-SNAPSHOT.jar meta
file:/tmp/spark/parquet/dir/part-00000-89b0c998-1d46-41a1-a241-4b5d1689b709-c000
file:
file:/tmp/spark/parquet/dir/part-00000-89b0c998-1d46-41a1-a241-4b5d1689b709-c000
creator: parquet-mr version 1.10.0 (build
031a6654009e3b82020012a18434c582bd74c73a)
file schema: hive_schema
--------------------------------------------------------------------------------
decimal1: OPTIONAL FIXED_LEN_BYTE_ARRAY O:DECIMAL R:0 D:1
row group 1: RC:1 TS:60 OFFSET:4
--------------------------------------------------------------------------------
decimal1: FIXED_LEN_BYTE_ARRAY SNAPPY DO:0 FPO:4 SZ:62/60/0.97 VC:1
ENC:PLAIN,BIT_PACKED,RLE ST:[min: 1, max: 1, num_nulls: 0]
{noformat}
was (Author: q79969786):
It works after upgrade built-in Hive to 2.3.2 and upgrade parquet to 1.10.0.
> CreateHiveTableAsSelect and InsertIntoHiveDir won't generate decimal column
> stats
> ---------------------------------------------------------------------------------
>
> Key: SPARK-24766
> URL: https://issues.apache.org/jira/browse/SPARK-24766
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Yuming Wang
> Priority: Major
>
> How to reproduce:
> {code:java}
> INSERT OVERWRITE LOCAL DIRECTORY '/tmp/spark/parquet/dir' STORED AS parquet
> select cast(1 as decimal) as decimal1;
> {code}
> {code:java}
> create table test_parquet stored as parquet as select cast(1 as decimal) as
> decimal1;
> {code}
> {noformat}
> $ java -jar ./parquet-tools/target/parquet-tools-1.10.1-SNAPSHOT.jar meta
> file:/tmp/spark/parquet/dir/part-00000-cb96a617-4759-4b21-a222-2153ca0e8951-c000
> file:
> file:/tmp/spark/parquet/dir/part-00000-cb96a617-4759-4b21-a222-2153ca0e8951-c000
> creator: parquet-mr version 1.6.0 (build
> 6aa21f8776625b5fa6b18059cfebe7549f2e00cb)
> file schema: hive_schema
> --------------------------------------------------------------------------------
> decimal1: OPTIONAL FIXED_LEN_BYTE_ARRAY O:DECIMAL R:0 D:1
> row group 1: RC:1 TS:46 OFFSET:4
> --------------------------------------------------------------------------------
> decimal1: FIXED_LEN_BYTE_ARRAY SNAPPY DO:0 FPO:4 SZ:48/46/0.96 VC:1
> ENC:BIT_PACKED,PLAIN,RLE ST:[no stats for this column]
> {noformat}
> because spark still use com.twitter.parquet-hadoop-bundle.1.6.0.
> May be we should refactor {{CreateHiveTableAsSelectCommand}} and
> {{InsertIntoHiveDirCommand}} or [upgrade built-in
> Hive|https://issues.apache.org/jira/browse/SPARK-23710].
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