[incubator-superset] branch master updated: fix the schema-fetching problem for impala in sql_lab (#3906)

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maximebeauchemin pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-superset.git


The following commit(s) were added to refs/heads/master by this push:
     new feb15a3  fix the schema-fetching problem for impala in sql_lab (#3906)
feb15a3 is described below

commit feb15a30a286943d597f2e710a4a8193125ab5a3
Author: Yu Xiao <xi...@gmail.com>
AuthorDate: Wed Nov 22 02:28:31 2017 +0900

    fix the schema-fetching problem for impala in sql_lab (#3906)
    
    * fix the schema-fetching problem for impala in sql_lab
    
    * delete redundant print
    
    * remove blank lines...
    
    * minior corrections
---
 superset/db_engine_specs.py | 10 ++++++++++
 superset/models/core.py     |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/superset/db_engine_specs.py b/superset/db_engine_specs.py
index 4b66fa1..37464e4 100644
--- a/superset/db_engine_specs.py
+++ b/superset/db_engine_specs.py
@@ -149,6 +149,10 @@ class BaseEngineSpec(object):
         pass
 
     @classmethod
+    def get_schema_names(cls, inspector):
+        return inspector.get_schema_names()
+
+    @classmethod
     def get_table_names(cls, schema, inspector):
         return sorted(inspector.get_table_names(schema))
 
@@ -1092,6 +1096,12 @@ class ImpalaEngineSpec(BaseEngineSpec):
             return "{}'".format(dttm.strftime('%Y-%m-%d'))
         return "'{}'".format(dttm.strftime('%Y-%m-%d %H:%M:%S'))
 
+    @classmethod
+    def get_schema_names(cls, inspector):
+        schemas = [row[0] for row in inspector.engine.execute('SHOW SCHEMAS')
+                   if not row[0].startswith('_')]
+        return schemas
+
 
 engines = {
     o.engine: o for o in globals().values()
diff --git a/superset/models/core.py b/superset/models/core.py
index d2989d5..2996625 100644
--- a/superset/models/core.py
+++ b/superset/models/core.py
@@ -726,7 +726,7 @@ class Database(Model, AuditMixinNullable):
         return views
 
     def all_schema_names(self):
-        return sorted(self.inspector.get_schema_names())
+        return sorted(self.db_engine_spec.get_schema_names(self.inspector))
 
     @property
     def db_engine_spec(self):

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