hive/impala can't show table schema

I use url impala://host:port/ like this to connect to hive database , the connect is ok , and I can execute sql in the sql lab . But ‘See table schema’ don’t seem right , it shows the databaseName not the tabels.See the screenshot for detail.

Screenshots

See table schema should show tables but actually the databaseName.And the And when clicked at the item ,it comes out the error

the console:

impala.hiveserver2:GetOperationStatus: resp=TGetOperationStatusResp(status=TStatus(statusCode=0, infoMessages=None, sqlState=None, errorCode=None, errorMessage=None), operationState=5, sqlState=None, errorCode=0, errorMessage=“org.apache.spark.sql.AnalysisException: Table or view not found: scannetwork.scannetwork; line 1 pos 14;\n’GlobalLimit 0\n± 'LocalLimit 0\n ± 'Project [*]\n ± 'UnresolvedRelation scannetwork.scannetwork\n”)

when I excute ’ show tables’, it shows the right result as follows

##Environment:

Superset 0.28.1 node.js v10.15.0 npm 6.4.1 impyla 0.15.0+2.ge4f2146 SQLAlchemy 1.2.7

[shadowera]

well, it’s a matter about sparksql . it’s finally solved by edit site-packages/impala/sqlalchemy.py from

def get_table_names(self, connection, schema=None, **kw):
    query = 'SHOW TABLES'
    if schema is not None:
        query += ' IN %s' % schema
    rreturn [tup[0] for tup in connection.execute(query).fetchall()]

to

    def get_table_names(self, connection, schema=None, **kw):
        query = 'SHOW TABLES'
        if schema is not None:
            query += ' IN %s' % schema
        return [t[1] if len(t) >1  else t[0] for t in connection.execute(query).fetchall()]

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