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https://issues.apache.org/jira/browse/SPARK-31709?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-31709.
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Fix Version/s: 3.1.0
Resolution: Fixed
Issue resolved by pull request 28527
[https://github.com/apache/spark/pull/28527]
> Proper base path for location when it is a relative path
> --------------------------------------------------------
>
> Key: SPARK-31709
> URL: https://issues.apache.org/jira/browse/SPARK-31709
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.5, 3.0.0, 3.1.0
> Reporter: Kent Yao
> Assignee: Kent Yao
> Priority: Major
> Fix For: 3.1.0
>
>
> Currently, the user home directory is used as the base path for the database
> and table locations when their location is specified with a relative path,
> e.g.
> {code:sql}
> > set spark.sql.warehouse.dir;
> spark.sql.warehouse.dir
> file:/Users/kentyao/Downloads/spark/spark-3.1.0-SNAPSHOT-bin-20200512/spark-warehouse/
> spark-sql> create database loctest location 'loctestdbdir';
> spark-sql> desc database loctest;
> Database Name loctest
> Comment
> Location
> file:/Users/kentyao/Downloads/spark/spark-3.1.0-SNAPSHOT-bin-20200512/loctestdbdir
> Owner kentyao
> spark-sql> create table loctest(id int) location 'loctestdbdir';
> spark-sql> desc formatted loctest;
> id int NULL
> # Detailed Table Information
> Database default
> Table loctest
> Owner kentyao
> Created Time Thu May 14 16:29:05 CST 2020
> Last Access UNKNOWN
> Created By Spark 3.1.0-SNAPSHOT
> Type EXTERNAL
> Provider parquet
> Location
> file:/Users/kentyao/Downloads/spark/spark-3.1.0-SNAPSHOT-bin-20200512/loctestdbdir
> 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
> {code}
> The user home is not always warehouse-related, unchangeable in runtime, and
> shared both by database and table as the parent directory. Meanwhile, we use
> the table path as the parent directory for relative partition locations.
> the config `spark.sql.warehouse.dir` represents the default location for
> managed databases and tables. For databases, the case above seems not to
> follow its semantics. For tables it is right but here I suggest enriching its
> meaning that is also for external tables with relative paths for locations.
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