jsl data filter (archive, query result)

packages/sqltree/src/evaluateExpression.ts

@@ -0,0 +1,26 @@
+import _ from 'lodash';
+import { SqlDumper } from 'dbgate-types';
+import { Expression, ColumnRefExpression } from './types';
+import { dumpSqlSourceRef } from './dumpSqlSource';
+
+export function evaluateExpression(expr: Expression, values) {
+  switch (expr.exprType) {
+    case 'column':
+      return values[expr.columnName];
+
+    case 'placeholder':
+      return values.__placeholder;
+
+    case 'value':
+      return expr.value;
+
+    case 'raw':
+      return expr.sql;
+
+    case 'call':
+      return null;
+
+    case 'transform':
+      return null;
+  }
+}