use a different query to fetch materialized view structure

pkg/api/api.go

@@ -151,7 +151,15 @@ func GetSchemas(c *gin.Context) {
 }
 
 func GetTable(c *gin.Context) {
-	res, err := DB(c).Table(c.Params.ByName("table"))
+	var res *client.Result
+	var err error
+
+	if c.Request.FormValue("type") == "materialized_view" {
+		res, err = DB(c).MaterializedView(c.Params.ByName("table"))
+	} else {
+		res, err = DB(c).Table(c.Params.ByName("table"))
+	}
+
 	serveResult(res, err, c)
 }
 

pkg/client/client.go

@@ -107,6 +107,10 @@ func (client *Client) Table(table string) (*Result, error) {
 	return client.query(statements.PG_TABLE_SCHEMA, schema, table)
 }
 
+func (client *Client) MaterializedView(name string) (*Result, error) {
+	return client.query(statements.PG_MATERIALIZED_VIEW_SCHEMA, name)
+}
+
 func (client *Client) TableRows(table string, opts RowsOptions) (*Result, error) {
 	schema, table := getSchemaAndTable(table)
 	sql := fmt.Sprintf(`SELECT * FROM "%s"."%s"`, schema, table)

pkg/client/result.go

@@ -25,10 +25,10 @@ type Result struct {
 }
 
 type Objects struct {
-	Tables            []string `json:"tables"`
-	Views             []string `json:"views"`
-	MaterializedViews []string `json:"materialized_views"`
-	Sequences         []string `json:"sequences"`
+	Tables            []string `json:"table"`
+	Views             []string `json:"view"`
+	MaterializedViews []string `json:"materialized_view"`
+	Sequences         []string `json:"sequence"`
 }
 
 // Due to big int number limitations in javascript, numbers should be encoded

pkg/statements/sql.go

@@ -92,6 +92,23 @@ WHERE
 
 	// ---------------------------------------------------------------------------
 
+	PG_MATERIALIZED_VIEW_SCHEMA = `
+SELECT 
+  attname as column_name, 
+  atttypid::regtype AS data_type,
+  (case when attnotnull IS TRUE then 'NO' else 'YES' end) as is_nullable,
+  null as character_maximum_length,
+  null as character_set_catalog,
+  null as column_default
+FROM
+  pg_attribute
+WHERE
+  attrelid = $1::regclass AND
+  attnum > 0 AND
+  NOT attisdropped`
+
+	// ---------------------------------------------------------------------------
+
 	PG_ACTIVITY = `
 SELECT
   datname,