From 4cc60a002555356f48c67d68c9897e97b4fb54c7 Mon Sep 17 00:00:00 2001
From: Min Zhang <124503663+PhDnemo@users.noreply.github.com>
Date: Sun, 7 May 2023 20:56:42 +0800
Subject: [PATCH 1/2] Update DdlManagerImpl.java

---
 .../java/org/polypheny/db/ddl/DdlManagerImpl.java   | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java b/dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java
index 338d484a69..226fef3b8b 100644
--- a/dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java
+++ b/dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java
@@ -1879,11 +1879,16 @@ public void createMaterializedView( String viewName, long schemaId, AlgRoot algR
     private void checkModelLangCompatibility( QueryLanguage language, Long tableId ) {
         CatalogTable catalogTable = catalog.getTable( tableId );
         if ( catalogTable.getNamespaceType() != language.getNamespaceType() ) {
-            throw new RuntimeException(
-                    String.format(
-                            "The used language cannot execute schema changing queries on this entity with the data model %s.",
-                            catalogTable.getNamespaceType() ) );
+            //Enable creating a view in a document namespace using the SQL query language
+            if(language.getNamespaceType().toString()!="RELATIONAL"|| catalogTable.getNamespaceType().toString()!="DOCUMENT")
+            {
+                throw new RuntimeException(
+                        String.format(
+                                "The used language cannot execute schema changing queries on this entity with the data model %s.",
+                                catalogTable.getNamespaceType() ) );
+            }
         }
+
     }
 
 

From a05f6ecc9b8d5092f80604a5ff7f147bbe514cc2 Mon Sep 17 00:00:00 2001
From: Min Zhang <124503663+PhDnemo@users.noreply.github.com>
Date: Sun, 7 May 2023 22:02:00 +0800
Subject: [PATCH 2/2] Update DdlManagerImpl.java

---
 dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java | 1 -
 1 file changed, 1 deletion(-)

diff --git a/dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java b/dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java
index 226fef3b8b..097643ab45 100644
--- a/dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java
+++ b/dbms/src/main/java/org/polypheny/db/ddl/DdlManagerImpl.java
@@ -1888,7 +1888,6 @@ private void checkModelLangCompatibility( QueryLanguage language, Long tableId )
                                 catalogTable.getNamespaceType() ) );
             }
         }
-
     }