pg_lo_write() writes at most to a large object from a variable data and returns the number of bytes actually written, or FALSE in the case of an error. large_object is a large object resource from pg_lo_open().
To use the large object (lo) interface, it is necessary to enclose it within a transaction block.
This function used to be called pg_lowrite().
See also pg_lo_create() and pg_lo_open().
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