FIX BUG #48539 - Disable TEXTLIMIT for FreeTDS driver

ext/pdo_dblib/dblib_driver.c

@@ -362,8 +362,10 @@ static int pdo_dblib_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_
 		goto cleanup;
 	}
 
+#if PHP_DBLIB_IS_MSSQL
 	/* dblib do not return more than this length from text/image */
 	DBSETOPT(H->link, DBTEXTLIMIT, "2147483647");
+#endif
 
 	/* limit text/image from network */
 	DBSETOPT(H->link, DBTEXTSIZE, "2147483647");