[BUG]: Unable to provide sql value in $onUpdate

[PurpleTape]

What version of drizzle-orm are you using?

0.30.10

What version of drizzle-kit are you using?

0.21.4

Describe the Bug

// schema
const table = pgTable('table', {
    ...
    updatedDate: timestamp('updated_date', { mode: 'date' }).$onUpdate(() => sql`CURRENT_TIMESTAMP`),
});

An error occurs when trying to update a table with such a schema:

TypeError: value.toISOString is not a function
    at PgTimestamp.mapToDriverValue (file:///app/node_modules/drizzle-orm/pg-core/columns/timestamp.js:33:18)
    at file:///app/node_modules/drizzle-orm/sql/sql.js:119:73
    at Array.map (<anonymous>)
    at SQL.buildQueryFromSourceParams (file:///app/node_modules/drizzle-orm/sql/sql.js:72:32)
    at file:///app/node_modules/drizzle-orm/sql/sql.js:94:21
    at Array.map (<anonymous>)
    at SQL.buildQueryFromSourceParams (file:///app/node_modules/drizzle-orm/sql/sql.js:72:32)
    at file:///app/node_modules/drizzle-orm/sql/sql.js:94:21
    at Array.map (<anonymous>)
    at SQL.buildQueryFromSourceParams (file:///app/node_modules/drizzle-orm/sql/sql.js:72:32)
    at file:///app/node_modules/drizzle-orm/sql/sql.js:94:21
    at Array.map (<anonymous>)
    at SQL.buildQueryFromSourceParams (file:///app/node_modules/drizzle-orm/sql/sql.js:72:32)
    at file:///app/node_modules/drizzle-orm/sql/sql.js:94:21
    at Array.map (<anonymous>)
    at SQL.buildQueryFromSourceParams (file:///app/node_modules/drizzle-orm/sql/sql.js:72:32)
    at file:///app/node_modules/drizzle-orm/sql/sql.js:52:26
    at Object.startActiveSpan (file:///app/node_modules/drizzle-orm/tracing.js:8:14)
    at SQL.toQuery (file:///app/node_modules/drizzle-orm/sql/sql.js:51:19)
    at PgDialect.sqlToQuery (file:///app/node_modules/drizzle-orm/pg-core/dialect.js:386:17)
    at file:///app/node_modules/drizzle-orm/pg-core/query-builders/insert.js:133:53
    at Object.startActiveSpan (file:///app/node_modules/drizzle-orm/tracing.js:8:14)
    at QueryPromise._prepare (file:///app/node_modules/drizzle-orm/pg-core/query-builders/insert.js:132:19)
    at file:///app/node_modules/drizzle-orm/pg-core/query-builders/insert.js:141:19
    at Object.startActiveSpan (file:///app/node_modules/drizzle-orm/tracing.js:8:14)
    at QueryPromise.execute (file:///app/node_modules/drizzle-orm/pg-core/query-builders/insert.js:140:19)
    at QueryPromise.then (file:///app/node_modules/drizzle-orm/query-promise.js:21:17)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

The occurrence of this error is due to the fact that when preparing a value for saving to the database, only the case is handled when the value is of type X https://github.com/drizzle-team/drizzle-orm/blob/a78eefe08e127922565486143e0150a718b27e8a/drizzle-orm/src/pg-core/columns/timestamp.ts#L65-L67

However, page DrizzleORM v0.30.5 release indicates that $onUpdate can take various values, including SQL

Expected behavior

No response

Environment & setup

No response

[vonkanehoffen]

For anyone Googling this (like me), a workaround is to change:

.$onUpdateFn(() => sql`now()`),

to

.$onUpdateFn(() => new Date()),

Related: https://github.com/drizzle-team/drizzle-orm/issues/2212