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https://issues.apache.org/jira/browse/HIVE-22209?focusedWorklogId=317634&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-317634
]
ASF GitHub Bot logged work on HIVE-22209:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 24/Sep/19 16:32
Start Date: 24/Sep/19 16:32
Worklog Time Spent: 10m
Work Description: scarlin-cloudera commented on pull request #782:
HIVE-22209: Graceful error msg when there is no table for a materiali…
URL: https://github.com/apache/hive/pull/782#discussion_r327715922
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/parse/QB.java
##########
@@ -456,4 +456,22 @@ public boolean containsQueryWithoutSourceTable() {
}
return aliasToTabs.size()==0 && aliasToSubq.size()==0;
}
+
+ // returns false when the query block doesn't have
+ // a table defined, e.g. "select 5"
+ public boolean hasTableDefined() {
+ // A table is not defined when there only exists a dummy
+ // table in the alias, so if it is blank, we know a table
+ // is defined.
+ if (aliasToTabs.size() == 0) {
+ return true;
+ }
+ for (String alias : aliasToTabs.keySet()) {
Review comment:
I looked at the code again...do you men aliases? That would definitely be a
better struct to use than the hashmap of tableAliases. If you confirm this,
I'll make the change.
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Issue Time Tracking
-------------------
Worklog Id: (was: 317634)
Time Spent: 40m (was: 0.5h)
> Creating a materialized view with no tables should be handled more gracefully
> -----------------------------------------------------------------------------
>
> Key: HIVE-22209
> URL: https://issues.apache.org/jira/browse/HIVE-22209
> Project: Hive
> Issue Type: Bug
> Components: Materialized views
> Reporter: Jesus Camacho Rodriguez
> Assignee: Steve Carlin
> Priority: Minor
> Labels: pull-request-available
> Attachments: HIVE-22209.1.patch, HIVE-22209.patch
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Currently, materialized views without a table reference are not supported.
> However, instead of printing a clear message about it, when a materialized
> view is created without a table reference, we fail with an unclear message.
> {code}
> > create materialized view mv_test1 as select 5;
> (...)
> ERROR : FAILED: Execution Error, return code 1 from
> org.apache.hadoop.hive.ql.exec.DDLTask. MetaException(message:Add request
> failed :
> INSERT INTO MV_TABLES_USED (MV_CREATION_METADATA_ID,TBL_ID) VALUES (?,?) )
> INFO : Completed executing
> command(queryId=hive_20190916203511_b609cccf-f5e3-45dd-abfd-6e869d94e39a);
> Time taken: 10.469 seconds
> Error: Error while processing statement: FAILED: Execution Error, return code
> 1 from org.apache.hadoop.hive.ql.exec.DDLTask. MetaExcep
> tion(message:Add request failed : INSERT INTO MV_TABLES_USED
> (MV_CREATION_METADATA_ID,TBL_ID) VALUES (?,?) ) (state=08S01,code=1)
> {code}
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