error

[MuskanNazim]

Unhandled Runtime Error NeonDbError: function sum(character varying) does not exist

Source app(routes)\dashboard\page.jsx (25:20) @ async getBudgetList

23 | */ 24 | const getBudgetList = async () => {

25 | const result = await db | ^ 26 | .select({ 27 | ...getTableColumns(Budgets), 28 |

[codeautopilot[bot]]

Potential solution

The plan to solve the bug involves ensuring that the amount columns in both the Budgets and Expenses tables are of a numeric type. This will allow the sum function to operate correctly without causing a runtime error. The reasoning behind this solution is based on the error message indicating that the sum function does not exist for character varying types, which suggests that the amount columns are currently defined as varchar.

What is causing this bug?

The bug is caused by the amount column in the Budgets table being defined as varchar instead of a numeric type. This causes the sum function to fail because it expects a numeric type. Additionally, there might be a similar issue with the amount column in the Expenses table, although it is already defined as numeric. Ensuring both columns are numeric will resolve the issue.

Code

Step 1: Modify the Budgets table schema

Change the amount column in the Budgets table from varchar to numeric.

// File: utils/schema.jsx
export const Budgets = pgTable("budgets", {
  id: serial("id").primaryKey(),
  name: varchar("name").notNull(),
  amount: numeric("amount").notNull(),  // Changed from varchar to numeric
  icon: varchar("icon"),
  createdBy: varchar("createdBy").notNull(),
});

Step 2: Ensure the Expenses table schema is correct

Verify that the amount column in the Expenses table is already defined as numeric.

// File: utils/schema.jsx
export const Expenses = pgTable("expenses", {
  id: serial("id").primaryKey(),
  name: varchar("name").notNull(),
  amount: numeric("amount").notNull(),  // Ensure this is numeric
  budgetId: integer("budgetId").references(() => Budgets.id),
  createdAt: varchar("createdAt").notNull(),
});

Step 3: Update the SQL query in getBudgetList

Ensure the SQL query in the getBudgetList function correctly sums the amount column.

// File: app/(routes)/dashboard/page.jsx
const getBudgetList = async () => {
  const result = await db
    .select({
      ...getTableColumns(Budgets),
      totalSpend: sql`SUM(${Expenses.amount})`.mapWith(Number),  // Ensure this sums the numeric column
      totalItem: sql`count(${Expenses.id})`.mapWith(Number),
    })
    .from(Budgets)
    .leftJoin(Expenses, eq(Budgets.id, Expenses.budgetId))
    .where(eq(Budgets.createdBy, user?.primaryEmailAddress?.emailAddress))
    .groupBy(Budgets.id)
    .orderBy(desc(Budgets.id));
  setBudgetList(result);
  getAllExpenses();
  getIncomeList();
};

How to replicate the bug

1. Ensure the amount column in the Budgets table is defined as varchar.
2. Run the application and navigate to the dashboard page.
3. Trigger the getBudgetList function, which will attempt to sum the amount column.
4. Observe the runtime error indicating that the sum function does not exist for character varying.

By following these steps, you should encounter the same error, confirming the bug.

Task

User input/request

Ticket title: error

Ticket Description: Unhandled Runtime Error NeonDbError: function sum(character varying) does not exist

Source app(routes)\dashboard\page.jsx (25:20) @ async getBudgetList

23 | */ 24 | const getBudgetList = async () => {

25 | const result = await db | ^ 26 | .select({ 27 | ...getTableColumns(Budgets), 28 |

By implementing the above changes, the bug should be resolved, allowing the sum function to operate correctly on the amount columns.

Click here to create a Pull Request with the proposed solution

Files used for this task:

Changes on utils/schema.jsx

## Analysis Report ### File: `utils/schema.jsx` #### Overview This file defines the schema for three tables: `Budgets`, `Incomes`, and `Expenses` using the `drizzle-orm` library. The schema definitions include various columns with different data types. #### Schema Definitions 1. **Budgets Table** - `id`: Serial (Primary Key) - `name`: Varchar (Not Null) - `amount`: Varchar (Not Null) - `icon`: Varchar - `createdBy`: Varchar (Not Null) 2. **Incomes Table** - `id`: Serial (Primary Key) - `name`: Varchar (Not Null) - `amount`: Varchar (Not Null) - `icon`: Varchar - `createdBy`: Varchar (Not Null) 3. **Expenses Table** - `id`: Serial (Primary Key) - `name`: Varchar (Not Null) - `amount`: Numeric (Not Null, Default 0) - `budgetId`: Integer (References `Budgets.id`) - `createdAt`: Varchar (Not Null) #### Potential Issue The error message indicates that there is an issue with the `sum` function being applied to a column of type `character varying` (varchar). Specifically, the error is related to the `Budgets` table. - The `amount` column in the `Budgets` table is defined as `varchar`. This is problematic because the `sum` function in SQL expects a numeric type. #### Recommendation To resolve this issue, the `amount` column in the `Budgets` table should be defined as a numeric type instead of `varchar`. This will ensure that the `sum` function can be applied without errors. ### Suggested Modification Change the `amount` column in the `Budgets` table from `varchar` to `numeric`. ```javascript export const Budgets = pgTable("budgets", { id: serial("id").primaryKey(), name: varchar("name").notNull(), amount: numeric("amount").notNull(), // Changed from varchar to numeric icon: varchar("icon"), createdBy: varchar("createdBy").notNull(), }); ``` ### Conclusion The root cause of the bug is the incorrect data type for the `amount` column in the `Budgets` table. Changing the data type from `varchar` to `numeric` should resolve the issue.

Changes on app/(routes)/dashboard/page.jsx

## Bug Analysis Report ### File: `app/(routes)/dashboard/page.jsx` #### Issue Description The error reported is: ``` Unhandled Runtime Error NeonDbError: function sum(character varying) does not exist ``` This error indicates that the `sum` function is being applied to a column of type `character varying` (string), which is not supported. The `sum` function should be applied to a numeric column. #### Relevant Code Section The error occurs in the `getBudgetList` function: ```javascript const getBudgetList = async () => { const result = await db .select({ ...getTableColumns(Budgets), totalSpend: sql`sum(${Expenses.amount})`.mapWith(Number), totalItem: sql`count(${Expenses.id})`.mapWith(Number), }) .from(Budgets) .leftJoin(Expenses, eq(Budgets.id, Expenses.budgetId)) .where(eq(Budgets.createdBy, user?.primaryEmailAddress?.emailAddress)) .groupBy(Budgets.id) .orderBy(desc(Budgets.id)); setBudgetList(result); getAllExpenses(); getIncomeList(); }; ``` #### Potential Cause The `sum` function is being applied to `Expenses.amount`. If `Expenses.amount` is not a numeric type, this will cause the error. #### Next Steps 1. **Verify Column Type**: Ensure that the `amount` column in the `Expenses` table is of a numeric type (e.g., `INTEGER`, `FLOAT`, `DECIMAL`). 2. **Casting**: If the column type cannot be changed, cast the column to a numeric type within the SQL query. #### Suggested Code Modification If the `amount` column is not numeric, you can cast it to a numeric type in the SQL query: ```javascript const getBudgetList = async () => { const result = await db .select({ ...getTableColumns(Budgets), totalSpend: sql`SUM(CAST(${Expenses.amount} AS NUMERIC))`.mapWith(Number), totalItem: sql`count(${Expenses.id})`.mapWith(Number), }) .from(Budgets) .leftJoin(Expenses, eq(Budgets.id, Expenses.budgetId)) .where(eq(Budgets.createdBy, user?.primaryEmailAddress?.emailAddress)) .groupBy(Budgets.id) .orderBy(desc(Budgets.id)); setBudgetList(result); getAllExpenses(); getIncomeList(); }; ``` ### Conclusion The error is likely due to the `amount` column in the `Expenses` table being of a non-numeric type. Casting the column to a numeric type in the SQL query should resolve the issue. Further verification of the column type in the schema definition file (`utils/schema.jsx`) is recommended.

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