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https://issues.apache.org/jira/browse/SPARK-11778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15009251#comment-15009251
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Huaxin Gao commented on SPARK-11778:
------------------------------------
I can reproduce the problem OK.
In hiveContext.table("db_name.table"), it goes through
SqlParser.parseTableIdentifier(tableName)
and the table name "db_name.table" got resolved to 'db_name'.'table', and
later, when trying to get the the qualified table name, the database name is
resolved to db_name, and table name is table, and it can get the qualified
table name OK.
In hiveContext.read.table("db_name.table"), it doesn't go through SQlParser to
parse the table name, so the table name "db_name.table" remain as is. Later,
when trying to get the the qualified table name, the database name resolved as
default, and table name is "db_name.table", it can't get the qualified table
name correctly.
> HiveContext.read.table does not support user-specified database names
> ---------------------------------------------------------------------
>
> Key: SPARK-11778
> URL: https://issues.apache.org/jira/browse/SPARK-11778
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.5.1
> Reporter: Stanislav Hadjiiski
> Priority: Minor
>
> If we have defined a HiveContext instance
> {quote}
> val hiveContext = new org.apache.spark.sql.hive.HiveContext(sparkContext)
> {quote}
> then
> {quote}
> hiveContext.table("db_name.table")
> {quote}
> works but
> {quote}
> hiveContext.read.table("db_name.table")
> {quote}
> throws an {{org.apache.spark.sql.catalyst.analysis.NoSuchTableException}}
> However,
> {quote}
> hiveContext.sql("use db_name")
> hiveContext.read.table("table")
> {quote}
> works as expected
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