backend bundle refactor

packages/engines/mysql/sql/columns.js

@@ -0,0 +1,15 @@
+module.exports = `
+select 
+	TABLE_NAME as pureName, 
+	COLUMN_NAME as columnName,
+	IS_NULLABLE as isNullable,
+	DATA_TYPE as dataType,
+	CHARACTER_MAXIMUM_LENGTH,
+	NUMERIC_PRECISION,
+	NUMERIC_SCALE,
+	COLUMN_DEFAULT,
+	EXTRA as extra
+from INFORMATION_SCHEMA.COLUMNS
+where TABLE_SCHEMA = '#DATABASE#' and TABLE_NAME =[OBJECT_NAME_CONDITION]
+order by ORDINAL_POSITION
+`;

packages/engines/mysql/sql/index.js

@@ -0,0 +1,7 @@
+const columns = require('./columns');
+const tables = require('./tables');
+
+module.exports = {
+  columns,
+  tables,
+};

packages/engines/mysql/sql/tables.js

@@ -0,0 +1,7 @@
+module.exports = `
+select 
+	TABLE_NAME as pureName, 
+	case when ENGINE='InnoDB' then CREATE_TIME else coalesce(UPDATE_TIME, CREATE_TIME) end as alterTime 
+from information_schema.tables 
+where TABLE_SCHEMA = '#DATABASE#' and TABLE_NAME =[OBJECT_NAME_CONDITION];
+`;