InnoDB Plugin  1.0
Data Fields
upd_field_t Struct Reference
Collaboration diagram for upd_field_t:
Collaboration graph

Data Fields

unsigned field_no:16
unsigned orig_len:16
que_node_t * exp
dfield_t new_val

Field Documentation

que_node_t* upd_field_t::exp

expression for calculating a new value: it refers to column values and constants in the symbol table of the query graph

unsigned upd_field_t::field_no

field number in an index, usually the clustered index, but in updating a secondary index record in this is the position in the secondary index

dfield_t upd_field_t::new_val

new value for the column

unsigned upd_field_t::orig_len

original length of the locally stored part of an externally stored column, or 0

The documentation for this struct was generated from the following file: