expression parser

packages/sqltree/src/dumpSqlExpression.ts

@@ -1,3 +1,4 @@
+import _ from 'lodash';
 import { SqlDumper } from '@dbgate/types';
 import { Expression, ColumnRefExpression } from './types';
 import { dumpSqlSourceRef } from './dumpSqlSource';
@@ -14,5 +15,13 @@ export function dumpSqlExpression(dmp: SqlDumper, expr: Expression) {
         dmp.put('%i', expr.columnName);
       }
       break;
+
+    case 'placeholder':
+      dmp.putRaw('{PLACEHOLDER}');
+      break;
+
+    case 'value':
+      dmp.put('%v', expr.value);
+      break;
   }
 }