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merged

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This commit is contained in:
serg@serg.mylan
2003-09-03 12:07:18 +02:00
parent bd49884c19 2fcab1c2ee
commit 755455e15c
37 changed files with 499 additions and 220 deletions
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49
sql/item_strfunc.h
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@@ -624,9 +624,56 @@ public:
Item_func_collation(Item *a) :Item_str_func(a) {}
String *val_str(String *);
const char *func_name() const { return "collation"; }
void fix_length_and_dec()
void fix_length_and_dec()
{
max_length=40; // should be enough
collation.set(system_charset_info);
};
};
class Item_func_crc32 :public Item_int_func
{
String value;
public:
Item_func_crc32(Item *a) :Item_int_func(a) {}
const char *func_name() const { return "crc32"; }
void fix_length_and_dec() { max_length=10; }
longlong val_int();
};
class Item_func_uncompressed_length : public Item_int_func
{
String value;
public:
Item_func_uncompressed_length(Item *a):Item_int_func(a){}
const char *func_name() const{return "uncompressed_length";}
void fix_length_and_dec() { max_length=10; }
longlong val_int();
};
#ifdef HAVE_COMPRESS
#define ZLIB_DEPENDED_FUNCTION ;
#else
#define ZLIB_DEPENDED_FUNCTION { null_value=1; return 0; }
#endif
class Item_func_compress: public Item_str_func
{
String buffer;
public:
Item_func_compress(Item *a):Item_str_func(a){}
void fix_length_and_dec(){max_length= (args[0]->max_length*120)/100+12;}
const char *func_name() const{return "compress";}
String *val_str(String *) ZLIB_DEPENDED_FUNCTION
};
class Item_func_uncompress: public Item_str_func
{
String buffer;
public:
Item_func_uncompress(Item *a): Item_str_func(a){}
void fix_length_and_dec(){max_length= MAX_BLOB_WIDTH;}
const char *func_name() const{return "uncompress";}
String *val_str(String *) ZLIB_DEPENDED_FUNCTION
};