[
https://issues.apache.org/jira/browse/SPARK-28413?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiao Li updated SPARK-28413:
----------------------------
Fix Version/s: 3.0.0
> sizeInByte is Not updated for parquet datasource on Next Insert.
> ----------------------------------------------------------------
>
> Key: SPARK-28413
> URL: https://issues.apache.org/jira/browse/SPARK-28413
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.2, 2.4.1
> Reporter: Babulal
> Priority: Minor
> Fix For: 3.0.0
>
>
> In SPARK-21237 (link SPARK-21237) it is fix when Appending data using
> write.mode("append") . But when create same type of parquet table using SQL
> and Insert data ,stats shows in-correct (not updated).
> *+Correct Stats Example (SPARK-21237)+*
> scala> spark.range(100).write.saveAsTable("tab1")
> scala> spark.sql("explain cost select * from tab1").show(false)
> +------------------------------------------------------------------------
> |plan
> +------------------------------------------------------------------------|
> |== Optimized Logical Plan ==
> Relation[id#10L|#10L] parquet, Statistics(*sizeInBytes=784.0 B*, hints=none)|
> == Physical Plan ==
> FileScan parquet default.tab1[id#10L|#10L] Batched: false, Format: Parquet,
> scala> spark.range(100).write.mode("append").saveAsTable("tab1")
> scala> spark.sql("explain cost select * from tab1").show(false)
> +----------------------------------------------------------------------
> |plan
> +----------------------------------------------------------------------|
> |== Optimized Logical Plan ==
> Relation[id#23L|#23L] parquet, Statistics(*sizeInBytes=1568.0 B*,
> hints=none)|
> == Physical Plan ==
> FileScan parquet default.tab1[id#23L|#23L] Batched: false, Format: Parquet,
>
>
> +*Incorrect Stats Example*+
> scala> spark.sql("create table tab2(id bigint) using parquet")
> res6: org.apache.spark.sql.DataFrame = []
> scala> spark.sql("explain cost select * from tab2").show(false)
> +----------------------------------------------------------------------
> |plan
> +----------------------------------------------------------------------|
> |== Optimized Logical Plan ==
> Relation[id#30L|#30L] parquet, Statistics(*sizeInBytes=374.0 B,* hints=none)|
> == Physical Plan ==
> FileScan parquet default.tab2[id#30L|#30L] Batched: false, Format: Parquet,
>
> scala> spark.sql("insert into tab2 select 1")
> res9: org.apache.spark.sql.DataFrame = []
> scala> spark.sql("explain cost select * from tab2").show(false)
> +----------------------------------------------------------------------
> |plan
> +----------------------------------------------------------------------|
> |== Optimized Logical Plan ==
> Relation[id#30L|#30L] parquet, Statistics(*sizeInBytes={color:#ff0000}374.0
> B{color}*, hints=none)|
> == Physical Plan ==
> FileScan parquet default.tab2[id#30L|#30L] Batched: false, Format: Parquet,
>
>
> Both table are same type of table
> scala> spark.sql("desc formatted tab1").show(2000,false)
>
> +-----------------------------+-------------------------------------------------------------+
> |col_name|data_type|
> +-----------------------------+-------------------------------------------------------------+
> |id|bigint|
> | | |
> | # Detailed Table Information| |
> |Database|default|
> |Table|tab1|
> |Owner|Administrator|
> |Created Time|Tue Jul 16 21:08:35 IST 2019|
> |Last Access|Thu Jan 01 05:30:00 IST 1970|
> |Created By|Spark 2.3.2|
> |Type|MANAGED|
> |Provider|parquet|
> |Table Properties|[transient_lastDdlTime=1563291579]|
> |Statistics|1568 bytes|
> |Location|file:/x/2|
> |Serde Library|org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe|
> |InputFormat|org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat|
> |OutputFormat|org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat|
>
> scala> spark.sql("desc formatted tab2").show(2000,false)
>
> +-----------------------------+-------------------------------------------------------------
> |col_name|data_type
>
> +-----------------------------+-------------------------------------------------------------|
> |id|bigint|
> | |
> | # Detailed Table Information|
> |Database|default|
> |Table|tab2|
> |Owner|Administrator|
> |Created Time|Tue Jul 16 21:10:24 IST 2019|
> |Last Access|Thu Jan 01 05:30:00 IST 1970|
> |Created By|Spark 2.3.2|
> |Type|MANAGED|
> |Provider|parquet|
> |Table Properties|[transient_lastDdlTime=1563291624]|
> |Location|file:/x/1|
> |Serde Library|org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe|
> |InputFormat|org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat|
> |OutputFormat|org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat|
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
