Files
openGauss-connector-odbc/odbc-test-gauss/insertreturning-test.c
2020-06-24 16:11:37 +08:00

90 lines
2.3 KiB
C

/*
* INSERT RETURNING tests.
*/
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
int main(int argc, char **argv)
{
SQLRETURN rc;
HSTMT hstmt = SQL_NULL_HSTMT;
char param1[100];
SQLLEN cbParam1;
SQLSMALLINT colcount1, colcount2;
SQLCHAR *sql;
int i;
test_connect();
rc = SQLAllocStmt(conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
sql = "set enforce_two_phase_commit=off;CREATE temp TABLE tmptable1 (i int4, t text)";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed while creating temp table", hstmt);
/*
* We used to have a memory leak when SQLNumResultCols() was called on an
* INSERT statement. It's been fixed, but this test case was useful to find
* it, when you crank up the number of iterations.
*/
for (i = 0; i < 100; i++)
{
/* Prepare a statement */
rc = SQLPrepare(hstmt, (SQLCHAR *) "INSERT INTO tmptable1 VALUES (1, ?) RETURNING (t)", SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLPrepare failed", hstmt);
/* bind param */
snprintf(param1, sizeof(param1), "foobar %d", i);
cbParam1 = SQL_NTS;
rc = SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT,
SQL_C_CHAR, /* value type */
SQL_CHAR, /* param type */
20, /* column size */
0, /* dec digits */
param1, /* param value ptr */
0, /* buffer len */
&cbParam1 /* StrLen_or_IndPtr */);
CHECK_STMT_RESULT(rc, "SQLBindParameter failed", hstmt);
/* Test SQLNumResultCols, called before SQLExecute() */
rc = SQLNumResultCols(hstmt, &colcount1);
CHECK_STMT_RESULT(rc, "SQLNumResultCols failed", hstmt);
/* Execute */
rc = SQLExecute(hstmt);
CHECK_STMT_RESULT(rc, "SQLExecute failed", hstmt);
/* Call SQLNumResultCols again, after SQLExecute() */
rc = SQLNumResultCols(hstmt, &colcount2);
CHECK_STMT_RESULT(rc, "SQLNumResultCols failed", hstmt);
printf("# of result cols before SQLExecute: %d, after: %d\n",
colcount1, colcount2);
/* Fetch result */
print_result(hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
}
rc = SQLFreeStmt(hstmt, SQL_DROP);
if (!SQL_SUCCEEDED(rc))
{
print_diag("SQLFreeStmt failed", SQL_HANDLE_STMT, hstmt);
exit(1);
}
/* Clean up */
test_disconnect();
return 0;
}