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A fix and a test case for Bug#11299 "prepared statement makes wrong SQL

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syntax in binlog which stops replication":
disallow the use of parameter markers which can lead to generation
of malformed binlog queries.
This commit is contained in:
konstantin@mysql.com
2005-07-15 00:01:49 +04:00
parent a1270b65db
commit a2b11ff266
4 changed files with 53 additions and 13 deletions
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9
sql/sql_lex.cc
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@ -554,6 +554,15 @@ int yylex(void *arg, void *yythd)
lex->next_state= MY_LEX_START; // Allow signed numbers
if (c == ',')
lex->tok_start=lex->ptr; // Let tok_start point at next item
/*
Check for a placeholder: it should not precede a possible identifier
because of binlogging: when a placeholder is replaced with
its value in a query for the binlog, the query must stay
grammatically correct.
*/
else if (c == '?' && ((THD*) yythd)->command == COM_PREPARE &&
!ident_map[cs, yyPeek()])
return(PARAM_MARKER);
return((int) c);
case MY_LEX_IDENT_OR_NCHAR: