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merge with 5.3

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sql/sql_insert.cc:
  CREATE ... IF NOT EXISTS may do nothing, but
  it is still not a failure. don't forget to my_ok it.
  ******
  CREATE ... IF NOT EXISTS may do nothing, but
  it is still not a failure. don't forget to my_ok it.
sql/sql_table.cc:
  small cleanup
  ******
  small cleanup
This commit is contained in:
Sergei Golubchik 2011-10-19 21:45:18 +02:00
commit 76f0b94bb0
1705 changed files with 166479 additions and 39785 deletions
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57
sql/rpl_utility.cc
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@ -303,7 +303,7 @@ uint32 table_def::calc_field_size(uint col, uchar *master_data) const
always read the length in little-endian order.
*/
Field_blob fb(m_field_metadata[col]);
length= fb.get_packed_size(master_data, TRUE);
length= fb.get_packed_size(master_data);
#else
/*
Compute the length of the data. We cannot use get_length() here
@ -1056,3 +1056,58 @@ table_def::~table_def()
#endif
}
/**
@param even_buf point to the buffer containing serialized event
@param event_len length of the event accounting possible checksum alg
@return TRUE if test fails
FALSE as success
*/
bool event_checksum_test(uchar *event_buf, ulong event_len, uint8 alg)
{
bool res= FALSE;
uint16 flags= 0; // to store in FD's buffer flags orig value
if (alg != BINLOG_CHECKSUM_ALG_OFF && alg != BINLOG_CHECKSUM_ALG_UNDEF)
{
ha_checksum incoming;
ha_checksum computed;
if (event_buf[EVENT_TYPE_OFFSET] == FORMAT_DESCRIPTION_EVENT)
{
#ifndef DBUG_OFF
int8 fd_alg= event_buf[event_len - BINLOG_CHECKSUM_LEN -
BINLOG_CHECKSUM_ALG_DESC_LEN];
#endif
/*
FD event is checksummed and therefore verified w/o the binlog-in-use flag
*/
flags= uint2korr(event_buf + FLAGS_OFFSET);
if (flags & LOG_EVENT_BINLOG_IN_USE_F)
event_buf[FLAGS_OFFSET] &= ~LOG_EVENT_BINLOG_IN_USE_F;
/*
The only algorithm currently is CRC32. Zero indicates
the binlog file is checksum-free *except* the FD-event.
*/
DBUG_ASSERT(fd_alg == BINLOG_CHECKSUM_ALG_CRC32 || fd_alg == 0);
DBUG_ASSERT(alg == BINLOG_CHECKSUM_ALG_CRC32);
/*
Complile time guard to watch over the max number of alg
*/
compile_time_assert(BINLOG_CHECKSUM_ALG_ENUM_END <= 0x80);
}
incoming= uint4korr(event_buf + event_len - BINLOG_CHECKSUM_LEN);
computed= my_checksum(0L, NULL, 0);
/* checksum the event content but the checksum part itself */
computed= my_checksum(computed, (const uchar*) event_buf,
event_len - BINLOG_CHECKSUM_LEN);
if (flags != 0)
{
/* restoring the orig value of flags of FD */
DBUG_ASSERT(event_buf[EVENT_TYPE_OFFSET] == FORMAT_DESCRIPTION_EVENT);
event_buf[FLAGS_OFFSET]= (uchar) flags;
}
res= !(computed == incoming);
}
return DBUG_EVALUATE_IF("simulate_checksum_test_failure", TRUE, res);
}