Copy cartodb lib/sql scripts from CDB_CartodbfyTable branch

scripts-available/CDB_ColumnNames.sql

@@ -0,0 +1,16 @@
+-- Function returning the column names of a table
+CREATE OR REPLACE FUNCTION CDB_ColumnNames(REGCLASS)
+RETURNS SETOF information_schema.sql_identifier
+AS $$
+
+    SELECT column_name 
+      FROM information_schema.columns 
+      WHERE
+        table_name IN (SELECT CDB_UserTables())
+        AND table_name = '' || $1 || '';
+         
+$$ LANGUAGE SQL;
+
+-- This is a private function, so only the db owner need privileges
+REVOKE ALL ON FUNCTION CDB_ColumnNames(REGCLASS) FROM PUBLIC;
+GRANT EXECUTE ON FUNCTION CDB_ColumnNames(REGCLASS) TO ":DATABASE_USERNAME";