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A fix for Bug#11918 "SP does not accept variables in LIMIT clause"

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Allow stored procedure variables in LIMIT clause.
Only allow variables of INTEGER types. 
Handle negative values by means of an implicit cast to UNSIGNED 
(similarly to prepared statement placeholders).
Add tests.
Make sure replication works by not doing NAME_CONST substitution
for variables in LIMIT clause.
Add replication tests.
This commit is contained in:
Konstantin Osipov
2010-04-14 01:56:19 +04:00
parent 03b1cdd045
commit b8d014b8f6
11 changed files with 357 additions and 3 deletions
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10
sql/sql_string.cc
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@ -405,6 +405,16 @@ bool String::append(const char *s)
}
bool String::append_ulonglong(ulonglong val)
{
if (realloc(str_length+MAX_BIGINT_WIDTH+2))
return TRUE;
char *end= (char*) longlong10_to_str(val, (char*) Ptr + str_length, 10);
str_length= end - Ptr;
return FALSE;
}
/*
Append a string in the given charset to the string
with character set recoding