fix(editability): allow digit-leading unquoted table names

apps/desktop/src/lib/__tests__/sql/digitLeadingIdentifier.spec.ts

@@ -0,0 +1,50 @@
+import { describe, expect, it } from "vitest";
+import { analyzeEditableQueryEditability } from "@/lib/sql/sqlAnalysis";
+import { extractIdentifierAt, extractQualifiedIdentifierAt } from "@/lib/sql/sqlNavigation";
+
+/**
+ * MySQL/MariaDB allow an unquoted identifier to start with a digit as long as it is not a pure
+ * number: `01_tablename` is a table name, `123` / `1e3` stay numeric literals. Before this the
+ * grid could not map the result back to a base table (read-only) and hover/Ctrl+click found no
+ * identifier at all. Regression coverage for #9992.
+ */
+describe("digit-leading identifiers (#9992)", () => {
+  it("treats a digit-leading table name as editable", () => {
+    const result = analyzeEditableQueryEditability("select * from 01_tablename");
+
+    expect(result.editable).toBe(true);
+    if (!result.editable) return;
+    expect(result.analysis.tableName).toBe("01_tablename");
+    expect(result.analysis.tableNameQuoted).toBe(false);
+    expect(result.analysis.selectStar).toBe(true);
+  });
+
+  it("keeps schema-qualified digit-leading table names editable", () => {
+    const result = analyzeEditableQueryEditability("select id, name from app.01_tablename");
+
+    expect(result.editable).toBe(true);
+    if (!result.editable) return;
+    expect(result.analysis.schema).toBe("app");
+    expect(result.analysis.tableName).toBe("01_tablename");
+    expect(result.analysis.columns.map((column) => column.sourceName)).toEqual(["id", "name"]);
+  });
+
+  it("still treats a pure number as a literal instead of a source", () => {
+    expect(analyzeEditableQueryEditability("select * from 123").editable).toBe(false);
+    expect(analyzeEditableQueryEditability("select * from 1e3").editable).toBe(false);
+  });
+
+  it("extracts digit-leading identifiers for hover and Ctrl+click", () => {
+    const sql = "select * from 01_tablename";
+
+    expect(extractIdentifierAt(sql, sql.indexOf("01_tablename"))).toBe("01_tablename");
+    expect(extractQualifiedIdentifierAt(sql, sql.indexOf("01_tablename"))?.parts).toEqual([{ value: "01_tablename", quoted: false }]);
+  });
+
+  it("does not extract numeric literals as identifiers", () => {
+    const sql = "select 123, 1e3 from t";
+
+    expect(extractIdentifierAt(sql, sql.indexOf("123"))).toBeNull();
+    expect(extractIdentifierAt(sql, sql.indexOf("1e3"))).toBeNull();
+  });
+});

apps/desktop/src/lib/__tests__/sql/sqlNavigation.spec.ts

@@ -355,11 +355,11 @@ describe("标识符提取的字符边界", () => {
     expect(extractIdentifierAt(sql, sql.indexOf("$col"))).toBe("$col");
   });
 
-  it("数字开头的片段不被当作标识符（只识别其后的字母段）", () => {
-    const sql = "select 1abc from t";
+  it("数字开头的标识符按 MySQL 规则识别，纯数字仍是字面量", () => {
+    const sql = "select 1abc, 123 from t";
 
-    expect(extractIdentifierAt(sql, sql.indexOf("1abc"))).toBeNull();
-    expect(extractIdentifierAt(sql, sql.indexOf("abc"))).toBe("abc");
+    expect(extractIdentifierAt(sql, sql.indexOf("1abc"))).toBe("1abc");
+    expect(extractIdentifierAt(sql, sql.indexOf("123"))).toBeNull();
   });
 
   it("引号包裹的中文标识符去掉引号并标记 quoted", () => {