Support views of HANA

packages/core/dialect/saphana/index.ts

@@ -153,7 +153,7 @@ export default class SAPHana extends GenericDialect<HanaConnection> implements C
   }
 
   public getTables(): Promise<DatabaseInterface.Table[]> {
-    return this.query(this.queries.fetchTables, [this.schema])
+    return this.query(this.queries.fetchTables, [this.schema, this.schema])
       .then(([queryRes]) => {
         return queryRes.results
           .reduce((prev, curr) => prev.concat(curr), [])
@@ -172,7 +172,7 @@ export default class SAPHana extends GenericDialect<HanaConnection> implements C
   }
 
   public getColumns(): Promise<DatabaseInterface.TableColumn[]> {
-    return this.query(this.queries.fetchColumns, [this.schema])
+    return this.query(this.queries.fetchColumns, [this.schema, this.schema])
       .then(([queryRes]) => {
         return queryRes.results
           .reduce((prev, curr) => prev.concat(curr), [])
@@ -200,6 +200,15 @@ export default class SAPHana extends GenericDialect<HanaConnection> implements C
   }
 
   public describeTable(prefixedTable: string) {
-    return this.query(this.queries.describeTable, [this.schema, prefixedTable]);
+    return new Promise(resolve => {
+      this.query(this.queries.describeTable, [this.schema, prefixedTable]).then(queryRes => {
+        if (queryRes[0].results.length == 0) {
+          this.query(this.queries.describeView, [this.schema, prefixedTable]).then(res => resolve(res));
+        } else {
+          resolve(queryRes);
+        }
+      })
+    });
   }
+
 }

packages/core/dialect/saphana/queries.ts

@@ -8,6 +8,12 @@ export default {
     TABLE_COLUMNS C
   WHERE
     C.SCHEMA_NAME = ? and C.TABLE_NAME = ?`,
+  describeView: `
+    SELECT *
+    FROM
+      VIEW_COLUMNS C
+    WHERE
+      C.SCHEMA_NAME = ? and C.VIEW_NAME = ?`,
   fetchColumns: `
 SELECT
   C.TABLE_NAME AS tableName,
@@ -19,9 +25,9 @@ SELECT
   '' as dbName,
   C.DEFAULT_VALUE as defaultValue,
   C.IS_NULLABLE as isNullable,
-  'table' as constraintType,
+  'Table' as constraintType,
   CONCAT( CONCAT( CONCAT(
-  'tables${TREE_SEP}',
+  'Tables${TREE_SEP}',
     C.TABLE_NAME),
   '${TREE_SEP}'),
     C.COLUMN_NAME)
@@ -30,11 +36,65 @@ FROM
   TABLE_COLUMNS C
 WHERE
   C.SCHEMA_NAME = ?
-ORDER BY
-  C.TABLE_NAME`,
+  UNION
+  SELECT
+  D.VIEW_NAME AS tableName,
+  D.COLUMN_NAME AS columnName,
+  D.CS_DATA_TYPE_NAME AS type,
+  D.LENGTH AS size,
+  '' as tableSchema,
+  '' AS tableCatalog,
+  '' as dbName,
+  D.DEFAULT_VALUE as defaultValue,
+  D.IS_NULLABLE as isNullable,
+  'View' as constraintType,
+  CONCAT( CONCAT( CONCAT(
+  'Views${TREE_SEP}',
+    D.VIEW_NAME),
+  '${TREE_SEP}'),
+    D.COLUMN_NAME)
+    AS tree
+FROM
+  VIEW_COLUMNS D
+WHERE
+  D.SCHEMA_NAME = ?`,
 
   fetchRecords: 'SELECT TOP :limit * FROM :table',
   fetchTables: `
+
+SELECT
+  A.TABLE_NAME AS tableName,
+  '' AS tableSchema,
+  '' AS tableCatalog,
+  0 AS isView,
+  '' AS dbName,
+  COUNT(1) AS numberOfColumns,
+  CONCAT('Tables${TREE_SEP}', A.TABLE_NAME) AS tree
+FROM
+  TABLE_COLUMNS A
+WHERE 
+  A.SCHEMA_NAME = ? 
+GROUP BY 
+  A.TABLE_NAME  
+UNION
+SELECT
+  B.VIEW_NAME AS tableName,
+  '' AS tableSchema,
+  '' AS tableCatalog,
+  1 AS isView,
+  '' AS dbName,
+  COUNT(1) AS numberOfColumns,
+  CONCAT('Views${TREE_SEP}', B.VIEW_NAME) AS tree
+FROM
+  VIEW_COLUMNS B
+WHERE 
+  B.SCHEMA_NAME = ? 
+GROUP BY 
+  B.VIEW_NAME  
+
+`
+
+/*  `
 SELECT
   A.TABLE_NAME AS tableName,
   '' AS tableSchema,
@@ -51,5 +111,5 @@ FROM
 WHERE 
   A.SCHEMA_NAME = ? 
 GROUP BY 
-  A.TABLE_NAME`
+  A.TABLE_NAME`*/
 } as DialectQueries;