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MDEV-18880: Optimizer trace prints date in hexadecimal

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Introduced a print_key_value function to makes sure that the trace prints data in readable format
for readable characters and the rest of the characters are printed as hexadecimal.
This commit is contained in:
Varun
2019-06-10 15:56:36 +05:30
parent 40ff8019d2
commit a0cb7551a4
9 changed files with 501 additions and 31 deletions
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55
sql/field.cc
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@ -11242,3 +11242,58 @@ bool Field::val_str_nopad(MEM_ROOT *mem_root, LEX_CSTRING *to)
thd->variables.sql_mode= sql_mode_backup;
return rc;
}
void Field::print_key_value(String *out, uint32 length)
{
if (charset() == &my_charset_bin)
print_key_value_binary(out, ptr, length);
else
val_str(out);
}
void Field_string::print_key_value(String *out, uint32 length)
{
if (charset() == &my_charset_bin)
{
size_t len= field_charset->cset->lengthsp(field_charset, (const char*) ptr, length);
print_key_value_binary(out, ptr, static_cast<uint32>(len));
}
else
{
THD *thd= get_thd();
sql_mode_t sql_mode_backup= thd->variables.sql_mode;
thd->variables.sql_mode&= ~MODE_PAD_CHAR_TO_FULL_LENGTH;
val_str(out,out);
thd->variables.sql_mode= sql_mode_backup;
}
}
void Field_varstring::print_key_value(String *out, uint32 length)
{
if (charset() == &my_charset_bin)
print_key_value_binary(out, get_data(), get_length());
else
val_str(out,out);
}
void Field_blob::print_key_value(String *out, uint32 length)
{
if (charset() == &my_charset_bin)
{
uchar *blob;
memcpy(&blob, ptr+packlength, sizeof(uchar*));
print_key_value_binary(out, blob, get_length());
}
else
val_str(out, out);
}
void Field::print_key_value_binary(String *out, const uchar* key, uint32 length)
{
out->append_semi_hex((const char*)key, length, charset());
}