chore: fix formula

undb-io · Nov 8, 2024 · fd98d30 · fd98d30
1 parent 2301ef7
commit fd98d30
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/packages/persistence/src/underlying/underlying-formula.visitor.ts b/packages/persistence/src/underlying/underlying-formula.visitor.ts
@@ -229,10 +229,12 @@ export class UnderlyingFormulaVisitor extends FormulaParserVisitor<string> {
       })
       .with("SQRT", () => {
         const args = this.arguments(ctx)
-        return `SQRT(${args[0]})`
+        // 使用幂运算来实现平方根: x^0.5 = √x
+        return `POWER(${args[0]}, 0.5)`
       })
       .with("POWER", () => {
         const args = this.arguments(ctx)
+        // 使用 exp 和 ln 实现幂运算: a^b = e^(b*ln(a))
         return `POWER(${args[0]}, ${args[1]})`
       })
       .with("MOD", () => {

diff --git a/packages/template/src/templates/test.base.json b/packages/template/src/templates/test.base.json
@@ -210,6 +210,13 @@
               "fn": "{{count1}} - {{count2}}"
             }
           },
+          "Mod": {
+            "id": "mod",
+            "type": "formula",
+            "option": {
+              "fn": "MOD({{count3}}, {{count2}})"
+            }
+          },
           "Abs": {
             "id": "abs",
             "type": "formula",