WIP

plugins/dbgate-plugin-duckdb/src/backend/helpers.js

@@ -0,0 +1,65 @@
+/**
+ * @param {string[} columnNames
+ * @param {import('@duckdb/node-api').DuckDBType[]} columnTypes
+ */
+function getColumnsInfo(columnNames, columnTypes) {
+  const columns = [];
+
+  for (let i = columnNames.length - 1; i >= 0; i--) {
+    columns.push({
+      columnName: columnNames[i],
+      dataType: columnTypes[i],
+    });
+  }
+
+  return columns;
+}
+
+function _normalizeValue(value) {
+  if (value === null) {
+    return null;
+  }
+
+  if (typeof value === 'bigint') {
+    return `${value}n`;
+  }
+
+  if (Array.isArray(value)) {
+    return value.map((item) => _normalizeValue(item));
+  }
+
+  if (typeof value === 'object') {
+    const normalizedObj = {};
+    for (const key in value) {
+      if (Object.hasOwnProperty.call(value, key)) {
+        normalizedObj[key] = _normalizeValue(value[key]);
+      }
+    }
+    return normalizedObj;
+  }
+
+  return value;
+}
+
+/**
+ * @param {Record<string, import('@duckdb/node-api').DuckDBValue>} obj
+ *
+ */
+function normalizeRow(obj) {
+  if (typeof obj !== 'object' || obj === null || Array.isArray(obj)) {
+    return _normalizeValue(obj);
+  }
+
+  const normalized = {};
+  for (const key in obj) {
+    if (Object.hasOwnProperty.call(obj, key)) {
+      normalized[key] = _normalizeValue(obj[key]);
+    }
+  }
+  return normalized;
+}
+
+module.exports = {
+  normalizeRow,
+  getColumnsInfo,
+};