WIP

plugins/dbgate-plugin-duckdb/src/frontend/Dumper.js

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+const { SqlDumper, arrayToHexString } = require('dbgate-tools');
+
+class Dumper extends SqlDumper {
+  autoIncrement() {}
+}
+
+module.exports = Dumper;

plugins/dbgate-plugin-duckdb/src/frontend/driver.js

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+// @ts-check
+
+const { driverBase } = global.DBGATE_PACKAGES['dbgate-tools'];
+const Dumper = require('./Dumper');
+const { sqliteSplitterOptions, noSplitSplitterOptions } = require('dbgate-query-splitter/lib/options');
+
+/**
+ * @param {string} databaseFile
+ */
+function getDatabaseFileLabel(databaseFile) {
+  if (!databaseFile) return databaseFile;
+  const m = databaseFile.match(/[\/]([^\/]+)$/);
+  if (m) return m[1];
+  return databaseFile;
+}
+
+/** @type {import('dbgate-types').SqlDialect} */
+const dialect = {
+  limitSelect: true,
+  rangeSelect: true,
+  offsetFetchRangeSyntax: false,
+  explicitDropConstraint: true,
+  stringEscapeChar: "'",
+  fallbackDataType: 'nvarchar',
+  allowMultipleValuesInsert: true,
+  dropColumnDependencies: ['indexes', 'primaryKey', 'uniques'],
+  quoteIdentifier(s) {
+    return `"${s}"`;
+  },
+  anonymousPrimaryKey: true,
+  requireStandaloneSelectForScopeIdentity: true,
+
+  createColumn: true,
+  dropColumn: true,
+  createIndex: true,
+  dropIndex: true,
+  createForeignKey: false,
+  enableForeignKeyChecks: false,
+  dropForeignKey: false,
+  createPrimaryKey: false,
+  dropPrimaryKey: false,
+  dropReferencesWhenDropTable: false,
+  filteredIndexes: true,
+  anonymousForeignKey: true,
+};
+
+/** @type {import('dbgate-types').EngineDriver} */
+const driver = {
+  ...driverBase,
+  dumperClass: Dumper,
+  dialect,
+  engine: 'duckdb@dbgate-plugin-duckdb',
+  title: 'DuckDB',
+  readOnlySessions: true,
+  supportsTransactions: true,
+
+  getQuerySplitterOptions: (usage) =>
+    usage == 'editor'
+      ? { ...sqliteSplitterOptions, ignoreComments: true, preventSingleLineSplit: true }
+      : usage == 'stream'
+      ? noSplitSplitterOptions
+      : sqliteSplitterOptions,
+  showConnectionTab: (field) => false,
+  showConnectionField: (field) => ['databaseFile'].includes(field),
+  beforeConnectionSave: (connection) => ({
+    ...connection,
+    singleDatabase: true,
+    defaultDatabase: getDatabaseFileLabel(connection.databaseFile),
+  }),
+};
+
+module.exports = driver;

plugins/dbgate-plugin-duckdb/src/frontend/index.js

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+import driver from './driver';
+
+export default {
+  packageName: 'dbgate-plugin-duckdb',
+  drivers: [driver],
+};