dead code prev_insert_id()

Author: vuvova

sql/handler.cc

@@ -3059,45 +3059,6 @@ void handler::adjust_next_insert_id_after_explicit_value(ulonglong nr)
 }
 
 
-/** @brief
- Computes the largest number X:
- - smaller than or equal to "nr"
- - of the form: auto_increment_offset + N * auto_increment_increment
- where N>=0.
-
- SYNOPSIS
- prev_insert_id
- nr Number to "round down"
- variables variables struct containing auto_increment_increment and
- auto_increment_offset
-
- RETURN
- The number X if it exists, "nr" otherwise.
-*/
-inline ulonglong
-prev_insert_id(ulonglong nr, struct system_variables *variables)
-{
- if (unlikely(nr < variables->auto_increment_offset))
- {
- /*
- There's nothing good we can do here. That is a pathological case, where
- the offset is larger than the column's max possible value, i.e. not even
- the first sequence value may be inserted. User will receive warning.
- */
- DBUG_PRINT("info",("auto_increment: nr: %lu cannot honour "
- "auto_increment_offset: %lu",
- (ulong) nr, variables->auto_increment_offset));
- return nr;
- }
- if (variables->auto_increment_increment == 1)
- return nr; // optimization of the formula below
- nr= (((nr - variables->auto_increment_offset)) /
- (ulonglong) variables->auto_increment_increment);
- return (nr * (ulonglong) variables->auto_increment_increment +
- variables->auto_increment_offset);
-}
-
-
 /**
  Update the auto_increment field if necessary.