[lovasoa]

SQLite's native math functions are now available in sql.js, while existing legacy functions remain enabled by default. Calling a legacy function prints a deprecation warning; functions called for many rows can produce many warnings. A future major release will disable these functions by default.

To try the future behavior now:

const SQL = await initSqlJs({ useOldExtensionFunctions: false });

Before opting in:

• log(x) changes from the natural logarithm to base 10 logarithm (log(100)=2 now); use ln() for the natural logarithm.
• Some invalid inputs now return NULL instead of 0, and native sign() returns an integer. Native sign() also works in expression indexes and generated columns.
• Legacy-only functions such as reverse, charindex, median, and stdev are unavailable, including in saved views and triggers. You can use sql.js to register your own implementation of the functions.

The first initialization chooses the mode for the module. In a worker, pass config: { useOldExtensionFunctions: false } on the first message. Both modes gain native functions including ln, log2, mod, trunc, pow, ceiling, and two-argument log.

Related

• fix: use official math functions #619 discusses moving from the unmaintained contributed extension to SQLite's native math functions.
• Bundled extension-functions.c replaces SQLite's built-in sign() #646 describes how the legacy sign() override breaks schemas using expression indexes or generated columns.
• SQLite math functions documents the native functions and their behavior.
• SQLite core functions documents native sign().