feat(import): add SQL script import with dialect-aware parsing

apps/desktop/src/components/import/TableImportDialog.vue

@@ -8,7 +8,7 @@ import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
-import { AlertTriangle, ArrowLeft, ArrowRight, Check, CheckCircle2, FileJson, FileSpreadsheet, FileText, FileUp, Loader2, RefreshCw, Square, Upload, X } from "@lucide/vue";
+import { AlertTriangle, ArrowLeft, ArrowRight, Check, CheckCircle2, FileCode, FileJson, FileSpreadsheet, FileText, FileUp, Loader2, RefreshCw, Square, Upload, X } from "@lucide/vue";
 import { useConnectionStore } from "@/stores/connectionStore";
 import { useSettingsStore } from "@/stores/settingsStore";
 import { useToast } from "@/composables/useToast";
@@ -109,6 +109,7 @@ const formatOptions: Array<{ value: api.TableImportSourceFormat; icon: any; labe
   { value: "delimited", icon: FileText, labelKey: "tableImport.formatDelimited", descriptionKey: "tableImport.formatDelimitedDescription" },
   { value: "json", icon: FileJson, labelKey: "tableImport.formatJson", descriptionKey: "tableImport.formatJsonDescription" },
   { value: "excel", icon: FileSpreadsheet, labelKey: "tableImport.formatExcel", descriptionKey: "tableImport.formatExcelDescription" },
+  { value: "sql", icon: FileCode, labelKey: "tableImport.formatSql", descriptionKey: "tableImport.formatSqlDescription" },
 ];
 
 const encodingOptions: Array<{ value: api.TableImportTextEncoding; labelKey: string }> = [
@@ -275,6 +276,7 @@ function detectFormat(name: string): api.TableImportSourceFormat {
   if (lower.endsWith(".txt")) return "delimited";
   if (lower.endsWith(".json")) return "json";
   if (lower.endsWith(".xls") || lower.endsWith(".xlsx") || lower.endsWith(".xlsm")) return "excel";
+  if (lower.endsWith(".sql")) return "sql";
   return "csv";
 }
 
@@ -317,12 +319,14 @@ function taskParseOptions(format: api.TableImportSourceFormat, sheetName = ""):
     emptyStringAsNull: emptyStringAsNull.value,
     sheetName,
     jsonShape: jsonShape.value,
+    databaseType: structureDatabaseType.value,
   });
 }
 
 function importParseOptions(format: api.TableImportSourceFormat, currentPreview: api.TableImportPreview, sheetName = ""): api.TableImportParseOptions {
   const options = taskParseOptions(format, sheetName);
-  if (isDelimitedFormat(format) && currentPreview.totalRowsExact !== false && options.encoding === "auto" && currentPreview.effectiveEncoding) {
+  // SQL 脚本与分隔文本一样依赖文本编码检测，导入时沿用预览阶段确定的编码避免二次检测结果不一致
+  if ((isDelimitedFormat(format) || format === "sql") && currentPreview.totalRowsExact !== false && options.encoding === "auto" && currentPreview.effectiveEncoding) {
     options.encoding = currentPreview.effectiveEncoding;
   }
   return options;
@@ -615,10 +619,11 @@ async function selectFile() {
   const selected = await open({
     multiple: targetMode.value === "create",
     filters: [
-      { name: "Data files", extensions: ["csv", "tsv", "txt", "json", "xlsx", "xlsm", "xls"] },
+      { name: "Data files", extensions: ["csv", "tsv", "txt", "json", "xlsx", "xlsm", "xls", "sql"] },
       { name: "Text", extensions: ["csv", "tsv", "txt"] },
       { name: "JSON", extensions: ["json"] },
       { name: "Excel", extensions: ["xlsx", "xlsm", "xls"] },
+      { name: "SQL", extensions: ["sql"] },
     ],
   });
   if (!selected) return;
@@ -939,7 +944,8 @@ async function reloadBatchPreviewsForEncoding() {
   errorMessage.value = "";
   try {
     for (const task of batchTasks.value) {
-      if (!isDelimitedFormat(task.format)) continue;
+      // SQL 脚本同样是文本源，编码变化时需要重新预览
+      if (!isDelimitedFormat(task.format) && task.format !== "sql") continue;
       const reusableSource = task.preview.sourceRef ? task.preview.filePath : task.source;
       const nextPreview = await api.previewTableImportFile(reusableSource, {
         sourceRef: task.preview.sourceRef || null,
@@ -1018,7 +1024,7 @@ watch(rawProgressPercent, (percent) => {
 
       <div class="min-h-0 flex-1 space-y-4 overflow-y-auto py-2 pr-1">
         <div class="grid grid-cols-[minmax(0,1fr)_auto] items-center gap-2">
-          <input ref="fileInput" type="file" accept=".csv,.tsv,.txt,.json,.xlsx,.xlsm,.xls" :multiple="targetMode === 'create'" class="hidden" @change="handleFileInputChange" />
+          <input ref="fileInput" type="file" accept=".csv,.tsv,.txt,.json,.xlsx,.xlsm,.xls,.sql" :multiple="targetMode === 'create'" class="hidden" @change="handleFileInputChange" />
           <div class="flex h-10 min-w-0 items-center gap-2 rounded-md border bg-muted/20 px-3">
             <span class="shrink-0 text-xs text-muted-foreground">{{ t("tableImport.target") }}</span>
             <span class="min-w-0 truncate text-sm font-medium">
@@ -1092,7 +1098,7 @@ watch(rawProgressPercent, (percent) => {
               {{ t("tableImport.selectFile") }}
             </Button>
           </div>
-          <div class="grid grid-cols-5 gap-2">
+          <div class="grid grid-cols-6 gap-2">
             <button v-for="format in formatOptions" :key="format.value" type="button" class="min-h-20 rounded-md border px-3 py-2 text-left" :class="sourceFormat === format.value ? 'border-primary bg-primary/5' : 'hover:bg-muted/30'" @click="sourceFormat = format.value">
               <component :is="format.icon" class="mb-2 h-4 w-4 text-muted-foreground" />
               <div class="text-xs font-medium">{{ t(format.labelKey) }}</div>
@@ -1194,6 +1200,25 @@ watch(rawProgressPercent, (percent) => {
             </label>
           </div>
 
+          <div v-else-if="sourceFormat === 'sql'" class="grid grid-cols-5 gap-3 rounded-md border p-3">
+            <div class="space-y-1.5">
+              <Label class="text-xs">{{ t("tableImport.encoding") }}</Label>
+              <Select :model-value="textEncoding" @update:model-value="(value: any) => (textEncoding = value)">
+                <SelectTrigger class="h-8 text-xs">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem v-for="option in encodingOptions" :key="option.value" :value="option.value">
+                    {{ t(option.labelKey) }}
+                  </SelectItem>
+                </SelectContent>
+              </Select>
+              <div v-if="textEncoding === 'auto' && preview?.effectiveEncoding" class="truncate text-[11px] text-muted-foreground" :title="t('tableImport.encodingDetected', { encoding: encodingLabel(preview.effectiveEncoding) })">
+                {{ t("tableImport.encodingDetected", { encoding: encodingLabel(preview.effectiveEncoding) }) }}
+              </div>
+            </div>
+          </div>
+
           <div v-else-if="sourceFormat === 'json'" class="grid grid-cols-2 gap-3 rounded-md border p-3">
             <div class="space-y-1.5">
               <Label class="text-xs">{{ t("tableImport.jsonShape") }}</Label>

apps/desktop/src/i18n/locales/en.ts

@@ -5338,6 +5338,8 @@ export default {
     formatJsonDescription: "Object or array rows",
     formatExcel: "Excel",
     formatExcelDescription: "XLS, XLSX, XLSM",
+    formatSql: "SQL",
+    formatSqlDescription: "INSERT statements in SQL scripts",
     previewRows: "Preview rows",
     delimiter: "Delimiter",
     encoding: "Encoding",

apps/desktop/src/i18n/locales/es.ts

@@ -5096,6 +5096,8 @@ export default withEnglishFallback({
     formatJsonDescription: "Object or array rows",
     formatExcel: "Excel",
     formatExcelDescription: "XLS, XLSX, XLSM",
+    formatSql: "SQL",
+    formatSqlDescription: "Sentencias INSERT en scripts SQL",
     previewRows: "Preview rows",
     delimiter: "Delimiter",
     encoding: "Codificación",

apps/desktop/src/i18n/locales/it.ts

@@ -5094,6 +5094,8 @@ export default withEnglishFallback({
     formatJsonDescription: "Object or array rows",
     formatExcel: "Excel",
     formatExcelDescription: "XLS, XLSX, XLSM",
+    formatSql: "SQL",
+    formatSqlDescription: "Istruzioni INSERT negli script SQL",
     previewRows: "Preview rows",
     delimiter: "Delimiter",
     encoding: "Codifica",

apps/desktop/src/i18n/locales/ja.ts

@@ -5123,6 +5123,8 @@ export default withEnglishFallback({
     formatJsonDescription: "Object or array rows",
     formatExcel: "Excel",
     formatExcelDescription: "XLS, XLSX, XLSM",
+    formatSql: "SQL",
+    formatSqlDescription: "SQL スクリプトの INSERT ステートメント",
     previewRows: "Preview rows",
     delimiter: "Delimiter",
     encoding: "文字コード",

apps/desktop/src/i18n/locales/ko.ts

@@ -4763,6 +4763,8 @@ export default withEnglishFallback({
     formatJsonDescription: "객체 또는 배열 행",
     formatExcel: "Excel",
     formatExcelDescription: "XLS, XLSX, XLSM",
+    formatSql: "SQL",
+    formatSqlDescription: "SQL 스크립트의 INSERT 문",
     previewRows: "미리보기 행",
     delimiter: "구분자",
     encoding: "인코딩",

apps/desktop/src/i18n/locales/pt-BR.ts

@@ -5096,6 +5096,8 @@ export default withEnglishFallback({
     formatJsonDescription: "Object or array rows",
     formatExcel: "Excel",
     formatExcelDescription: "XLS, XLSX, XLSM",
+    formatSql: "SQL",
+    formatSqlDescription: "Instruções INSERT em scripts SQL",
     previewRows: "Preview rows",
     delimiter: "Delimiter",
     encoding: "Codificação",

apps/desktop/src/i18n/locales/zh-CN.ts

@@ -5323,6 +5323,8 @@ export default withEnglishFallback({
     formatJsonDescription: "对象行或数组行",
     formatExcel: "Excel",
     formatExcelDescription: "XLS、XLSX、XLSM",
+    formatSql: "SQL",
+    formatSqlDescription: "SQL 脚本中的 INSERT 语句",
     previewRows: "预览行数",
     delimiter: "分隔符",
     encoding: "文件编码",

apps/desktop/src/i18n/locales/zh-TW.ts

@@ -4420,6 +4420,8 @@ export default withEnglishFallback({
     formatJsonDescription: "物件列或陣列列",
     formatExcel: "Excel",
     formatExcelDescription: "XLS、XLSX、XLSM",
+    formatSql: "SQL",
+    formatSqlDescription: "SQL 指令檔中的 INSERT 語句",
     previewRows: "預覽列數",
     delimiter: "分隔符",
     encoding: "檔案編碼",

apps/desktop/src/lib/__tests__/table/tableImport.spec.ts

@@ -115,6 +115,26 @@ describe("tableImport", () => {
     expect(buildTableImportParseOptions({ ...baseSettings, format: "csv", sheetName: "Second" }).sheetName).toBeNull();
   });
 
+  it("passes the text encoding for SQL script sources like delimited text", () => {
+    const settings = {
+      delimiter: ",",
+      textEncoding: "gbk" as const,
+      titleRow: 1,
+      dataStartRow: 2,
+      lastDataRow: 0,
+      trimValues: false,
+      emptyStringAsNull: true,
+      jsonShape: "auto" as const,
+      databaseType: "mysql" as const,
+    };
+
+    expect(buildTableImportParseOptions({ ...settings, format: "sql" }).encoding).toBe("gbk");
+    expect(buildTableImportParseOptions({ ...settings, format: "sql" }).sqlDialect).toBe("mysql");
+    expect(buildTableImportParseOptions({ ...settings, format: "delimited" }).encoding).toBe("gbk");
+    expect(buildTableImportParseOptions({ ...settings, format: "delimited" }).sqlDialect).toBeNull();
+    expect(buildTableImportParseOptions({ ...settings, format: "excel" }).encoding).toBeNull();
+  });
+
   it("suggests create-table data types from preview rows", () => {
     expect(
       suggestImportTargetDataTypes(

apps/desktop/src/lib/backend/tauri.ts

@@ -4477,7 +4477,7 @@ export async function sortTablesByFkDependency(options: SortTablesByFkOptions):
 export type TableImportMode = "append" | "truncate";
 export type TableImportStatus = "running" | "done" | "error" | "cancelled";
 export type TableImportPhase = "preparing" | "detectingEncoding" | "reading" | "writing" | "finalizing" | "done";
-export type TableImportSourceFormat = "csv" | "tsv" | "delimited" | "json" | "excel";
+export type TableImportSourceFormat = "csv" | "tsv" | "delimited" | "json" | "excel" | "sql";
 export type TableImportJsonShape = "auto" | "objects" | "arrays";
 export type TableImportTextEncoding = "auto" | "utf8" | "gbk" | "utf16Le" | "utf16Be";
 
@@ -4499,6 +4499,7 @@ export interface TableImportParseOptions {
   sheetName?: string | null;
   sheetIndex?: number | null;
   jsonShape?: TableImportJsonShape | null;
+  sqlDialect?: DatabaseType | null;
 }
 
 export interface TableImportPreviewRequest {

apps/desktop/src/lib/table/tableImport.ts

@@ -86,6 +86,7 @@ export interface TableImportParseSettings {
   emptyStringAsNull: boolean;
   sheetName?: string;
   jsonShape: TableImportJsonShape;
+  databaseType?: DatabaseType | null;
 }
 
 export function defaultTableImportEmptyStringAsNull(format: TableImportSourceFormat): boolean {
@@ -94,9 +95,11 @@ export function defaultTableImportEmptyStringAsNull(format: TableImportSourceFor
 
 export function buildTableImportParseOptions(settings: TableImportParseSettings): TableImportParseOptions {
   const isDelimited = settings.format === "csv" || settings.format === "tsv" || settings.format === "delimited";
+  // SQL 脚本与分隔文本一样是纯文本源，需要传递编码供后端解码（支持 GBK 等常见转储编码）
+  const isTextSource = isDelimited || settings.format === "sql";
   return {
     delimiter: settings.format === "tsv" ? "\\t" : settings.format === "csv" ? "," : settings.delimiter,
-    encoding: isDelimited ? settings.textEncoding : null,
+    encoding: isTextSource ? settings.textEncoding : null,
     titleRow: settings.titleRow,
     dataStartRow: settings.dataStartRow,
     lastDataRow: settings.lastDataRow,
@@ -104,6 +107,8 @@ export function buildTableImportParseOptions(settings: TableImportParseSettings)
     emptyStringAsNull: settings.emptyStringAsNull,
     sheetName: settings.format === "excel" ? settings.sheetName || null : null,
     jsonShape: settings.format === "json" ? settings.jsonShape : null,
+    // SQL 脚本需要按源方言解析字符串转义与标识符大小写（取目标连接的数据库类型）
+    sqlDialect: settings.format === "sql" ? (settings.databaseType ?? null) : null,
   };
 }