[API reference](https://evolu.dev/docs/api-reference) › [@evolu/sqlite-wasm](https://evolu.dev/docs/api-reference/sqlite-wasm) › [c-api](https://evolu.dev/docs/api-reference/sqlite-wasm/c-api) › sqlite3\_vtab\_nochange

```ts
function sqlite3_vtab_nochange(
  deps: SqliteWasmDep,
): (context: SqliteContextPtr) => number;
```

Defined in: [packages/sqlite-wasm/src/CApi.ts:3053](https://github.com/evoluhq/evolu/blob/bc4578a260dd15d5bbf94b83765ca05984d194cb/packages/sqlite-wasm/src/CApi.ts#L3053)

Returns non-zero inside xColumn when the column is fetched for an UPDATE that
does not change it, so xColumn may leave the result unset. It is only a hint
and may always return 0.

Wasm type `i(i)`. Signature `["sqlite3_vtab_nochange", "int",
"sqlite3_context*"]` from SQLite's table.

See https://sqlite.org/c3ref/vtab_nochange.html.