Hi all, I just ran into a problem while calling a function using ODBC. The function name is in japenese.
OS = Ubuntu, 7.10
But, when I call the function using the following syntax
{ ? = call 参照カーソル_inout_callee2(?,?)}
the server throws me a syntax error. when analyzing the server logs, I found that call is replaced with SELECT * FROM. The query actually passing to the server is
SELECT * FROM参照カーソル_inout_callee2('','') .
When further analyzing the query, I found that there was no space between FROM keyword and procedure name.
Then, I debug the ODBC source code, I found the problem in convert.c at function inner_process_tokens. But, I am confused over here why we need this condition (condition is bolded). Below is the code snippet.
/* * Handle literals (date, time, timestamp) and ODBC scalar * functions */ else if (oldchar == '{') { if (SQL_ERROR == convert_escape(qp, qb)) { if (0 == qb->errornumber) { qb->errornumber = STMT_EXEC_ERROR; qb->errormsg = "ODBC escape convert error"; } mylog("%s convert_escape error\n", func); return SQL_ERROR; } if (isalnum((UCHAR)F_OldPtr(qp)[1])) CVT_APPEND_CHAR(qb, ' '); return SQL_SUCCESS; }
The condition says that if the first character of the function name is alpha numeric, then append the space character. From man pages of isalnum, it says that for "C" locale characters, it will return true. This means that ASCII characters will be considered.
