function if compiled with -DSQLITE_ENABLE_OFFSET_SQL_FUNC. The makefiles add
that definition to shell builds.
FossilOrigin-Name: 7a7f826e324b1a2c332e2f1d0740fd0babffcaca6275a798572f02ad367b99ab
The function might return an offset to the main table or to an index,
depending on whether the column X would be loaded from the main table or
from the index.
FossilOrigin-Name: dd94d6a880dfec4bddd247239b815b84964f804d24841e25f33f1d46a4b5274d
location of the payload within the database for the record that contains
column X. location(X) returns NULL if X is not an ordinary table column or
if SQLite cannot figure out the location because it is using a covering index.
FossilOrigin-Name: 51be9558164301c5dd4df23ab8b3e67de0b522f8d36f79f3d84d45d3dc2a83a4