Commit 57a97f53 authored by stewart@willster.(none)'s avatar stewart@willster.(none)
Browse files

BUG#19914 SELECT COUNT(*) sometimes returns MAX_INT on cluster tables 

post-review fixes as indicated by Serg.

manual testing of error cases done in 5.0 due to support for DBUG_EXECUTE_IF
to insert errors.
Unable to write test case for mysql-test until 5.1 due to support for setting
debug options at runtime.
parent 3ecc09e0

sql/ha_blackhole.cc

+2 −2
Original line number Diff line number Diff line
@@ -100,7 +100,7 @@ void ha_blackhole::position(const byte *record) 
}





void ha_blackhole::info(uint flag)

int ha_blackhole::info(uint flag)

{

  DBUG_ENTER("ha_blackhole::info");
@@ -114,7 +114,7 @@ void ha_blackhole::info(uint flag) 
  delete_length= 0;

  if (flag & HA_STATUS_AUTO)

    auto_increment_value= 1;

  DBUG_VOID_RETURN;

  DBUG_RETURN(0);

}



int ha_blackhole::external_lock(THD *thd, int lock_type)

sql/ha_blackhole.h

+1 −1
Original line number Diff line number Diff line
@@ -78,7 +78,7 @@ class ha_blackhole: public handler 
  int index_first(byte * buf);

  int index_last(byte * buf);

  void position(const byte *record);

  void info(uint flag);

  int info(uint flag);

  int external_lock(THD *thd, int lock_type);

  uint lock_count(void) const;

  int create(const char *name, TABLE *table_arg,

sql/ha_isam.cc

+2 −1
Original line number Diff line number Diff line
@@ -178,7 +178,7 @@ void ha_isam::position(const byte *record) 
  ha_store_ptr(ref, ref_length, position);

}



void ha_isam::info(uint flag)

int ha_isam::info(uint flag)

{

  N_ISAMINFO info;

  (void) nisam_info(file,&info,flag);
@@ -224,6 +224,7 @@ void ha_isam::info(uint flag) 
  }

  if (flag & HA_STATUS_TIME)

    update_time = info.update_time;

  return 0;

}

sql/ha_isam.h

+1 −1
Original line number Diff line number Diff line
@@ -67,7 +67,7 @@ class ha_isam: public handler 
  int rnd_next(byte *buf);

  int rnd_pos(byte * buf, byte *pos);

  void position(const byte *record);

  void info(uint);

  int info(uint);

  int extra(enum ha_extra_function operation);

  int external_lock(THD *thd, int lock_type);

  ha_rows records_in_range(uint inx, key_range *min_key, key_range *max_key);

sql/ha_isammrg.cc

+2 −1
Original line number Diff line number Diff line
@@ -149,7 +149,7 @@ void ha_isammrg::position(const byte *record) 
}





void ha_isammrg::info(uint flag)

int ha_isammrg::info(uint flag)

{

  MERGE_INFO info;

  (void) mrg_info(file,&info,flag);
@@ -163,6 +163,7 @@ void ha_isammrg::info(uint flag) 
  block_size=0;

  update_time=0;

  ref_length=4;					// Should be big enough

  return 0;

}