Potential memory leak with sqlite3_expanded_sql?

[burdiyan]

According to the docs strings returned by sqlite3_expanded_sql should be freed manually with sqlite3_free:

https://www.sqlite.org/c3ref/expanded_sql.html

The string returned by sqlite3_expanded_sql(P), on the other hand, is obtained from sqlite3_malloc() and must be freed by the application by passing it to sqlite3_free().

Here the C value is passed directly to C.GoString. I'm not an expert in CGO and I don't know if this could be a potential memory leak.

sqlite/cgosqlite/cgosqlite.go

Line 189 in f1ddf61

return C.GoString(C.sqlite3_expanded_sql(stmt.stmt))