obconnector-c/include/mariadb_stmt.h
2024-06-12 13:51:27 +08:00

633 lines
24 KiB
C

/************************************************************************
Copyright (c) 2021 OceanBase.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02111-1301, USA
Part of this code includes code from PHP's mysqlnd extension
(written by Andrey Hristov, Georg Richter and Ulf Wendel), freely
*************************************************************************/
#include <stdint.h>
#ifdef _WIN32
typedef unsigned int uint;
typedef unsigned long ulong;
#endif
#define MYSQL_NO_DATA 100
#define MYSQL_DATA_TRUNCATED 101
#define MYSQL_DEFAULT_PREFETCH_ROWS (unsigned long) 1
/* Bind flags */
#define MADB_BIND_DUMMY 1
#define MARIADB_STMT_BULK_SUPPORTED(stmt)\
((stmt)->mysql && \
(!((stmt)->mysql->server_capabilities & CLIENT_MYSQL) &&\
((stmt)->mysql->extension->mariadb_server_capabilities & \
(MARIADB_CLIENT_STMT_BULK_OPERATIONS >> 32))))
#define SET_CLIENT_STMT_ERROR(a, b, c, d) \
do { \
(a)->last_errno= (b);\
strncpy((a)->sqlstate, (c), SQLSTATE_LENGTH);\
(a)->sqlstate[SQLSTATE_LENGTH]= 0;\
strncpy((a)->last_error, (d) ? (d) : ER((b)), MYSQL_ERRMSG_SIZE);\
(a)->last_error[MYSQL_ERRMSG_SIZE - 1]= 0;\
} while (0)
#define SET_OB_CLIENT_STMT_ERROR(a, b, c, d) \
do { \
(a)->last_errno= (b);\
strncpy((a)->sqlstate, (c), SQLSTATE_LENGTH);\
(a)->sqlstate[SQLSTATE_LENGTH]= 0;\
strncpy((a)->last_error, (d) ? (d) : OBER((b)), MYSQL_ERRMSG_SIZE);\
(a)->last_error[MYSQL_ERRMSG_SIZE - 1]= 0;\
} while (0)
#define CLEAR_CLIENT_STMT_ERROR(a) \
do { \
(a)->last_errno= 0;\
strcpy((a)->sqlstate, "00000");\
(a)->last_error[0]= 0;\
} while (0)
#define MYSQL_PS_SKIP_RESULT_W_LEN -1
#define MYSQL_PS_SKIP_RESULT_STR -2
#define STMT_ID_LENGTH 4
typedef struct st_mysql_stmt MYSQL_STMT;
typedef MYSQL_RES* (*mysql_stmt_use_or_store_func)(MYSQL_STMT *);
enum enum_stmt_attr_type
{
STMT_ATTR_UPDATE_MAX_LENGTH,
STMT_ATTR_CURSOR_TYPE,
STMT_ATTR_PREFETCH_ROWS,
STMT_ATTR_ARRAY_BIND,
/* MariaDB only */
STMT_ATTR_PREBIND_PARAMS=200,
STMT_ATTR_ARRAY_SIZE,
STMT_ATTR_ROW_SIZE,
STMT_ATTR_STATE,
STMT_ATTR_CB_USER_DATA,
STMT_ATTR_CB_PARAM,
STMT_ATTR_CB_RESULT
};
enum enum_cursor_type
{
CURSOR_TYPE_NO_CURSOR= 0,
CURSOR_TYPE_READ_ONLY= 1,
CURSOR_TYPE_FOR_UPDATE= 2,
CURSOR_TYPE_SCROLLABLE= 4
};
#define CURSOR_TYPE_ARRAY_BIND 8
#define CURSOR_TYPE_SAVE_EXCEPTION 16
enum enum_indicator_type
{
STMT_INDICATOR_NTS=-1,
STMT_INDICATOR_NONE=0,
STMT_INDICATOR_NULL=1,
STMT_INDICATOR_DEFAULT=2,
STMT_INDICATOR_IGNORE=3,
STMT_INDICATOR_IGNORE_ROW=4
};
enum enum_prepare_execute_request_ext_flag
{
STMT_PRE_EXE_EFLAG_DEFAULT=0,
STMT_PRE_EXE_EFLAG_NEED_ARRAYBIND_RES= 2 //need resultset for arraybinding for all types(dml/pl etc.)
};
/*
bulk PS flags
*/
#define STMT_BULK_FLAG_CLIENT_SEND_TYPES 128
#define STMT_BULK_FLAG_INSERT_ID_REQUEST 64
typedef enum mysql_stmt_state
{
MYSQL_STMT_INITTED = 0,
MYSQL_STMT_PREPARED,
MYSQL_STMT_EXECUTED,
MYSQL_STMT_WAITING_USE_OR_STORE,
MYSQL_STMT_USE_OR_STORE_CALLED,
MYSQL_STMT_USER_FETCHING, /* fetch_row_buff or fetch_row_unbuf */
MYSQL_STMT_FETCH_DONE
} enum_mysqlnd_stmt_state;
typedef struct st_mysql_bind
{
unsigned long *length; /* output length pointer */
my_bool *is_null; /* Pointer to null indicator */
void *buffer; /* buffer to get/put data */
/* set this if you want to track data truncations happened during fetch */
my_bool *error;
union {
unsigned char *row_ptr; /* for the current data position */
char *indicator; /* indicator variable */
} u;
void (*store_param_func)(NET *net, struct st_mysql_bind *param);
void (*fetch_result)(struct st_mysql_bind *, MYSQL_FIELD *,
unsigned char **row);
void (*skip_result)(struct st_mysql_bind *, MYSQL_FIELD *,
unsigned char **row);
/* output buffer length, must be set when fetching str/binary */
unsigned long buffer_length;
unsigned long offset; /* offset position for char/binary fetch */
unsigned long length_value; /* Used if length is 0 */
unsigned int flags; /* special flags, e.g. for dummy bind */
unsigned int pack_length; /* Internal length for packed data */
enum enum_field_types buffer_type; /* buffer type */
my_bool error_value; /* used if error is 0 */
my_bool is_unsigned; /* set if integer type is unsigned */
my_bool long_data_used; /* If used with mysql_send_long_data */
my_bool piece_data_used; /* If used with mysql_send_piece_data */
my_bool is_null_value; /* Used if is_null is 0 */
my_bool is_handle_returning_into; /* is handling the result of returning into*/
my_bool no_need_to_parser_result; /* skip to parse the column for this result */
unsigned long last_offset;
void *extension;
MYSQL *mysql;
MA_MEM_ROOT bind_alloc; /* use for complex type */
} MYSQL_BIND;
//add for oboracle complex type
#define COMPLEX_BIND_HEADER \
enum enum_field_types buffer_type;\
void *buffer; \
my_bool is_null
#define COMPLEX_OBJECT_HEADER \
COMPLEX_BIND_HEADER; \
unsigned char *type_name; \
unsigned char *owner_name; \
unsigned long length
typedef struct st_mysql_complex_bind_header
{
COMPLEX_BIND_HEADER;
} MYSQL_COMPLEX_BIND_HEADER;
typedef struct st_mysql_complex_bind_header MYSQL_COMPLEX_BIND_BASIC;
typedef struct st_mysql_complex_bind_string
{
COMPLEX_BIND_HEADER;
unsigned long length;
} MYSQL_COMPLEX_BIND_STRING;
typedef struct st_mysql_complex_bind_string MYSQL_COMPLEX_BIND_DECIMAL;
typedef struct st_mysql_complex_bind_object
{
COMPLEX_OBJECT_HEADER;
} MYSQL_COMPLEX_BIND_OBJECT;
// add for support send pl array maxrarr_len
typedef struct st_mysql_complex_bind_plarray
{
COMPLEX_OBJECT_HEADER;
unsigned long maxrarr_len;
enum enum_field_types elem_type;
} MYSQL_COMPLEX_BIND_PLARRAY;
typedef struct st_mysql_complex_bind_object MYSQL_COMPLEX_BIND_ARRAY;
//end add for oboracle complex type
#define MAX_OB_LOB_LOCATOR_HEADER_LENGTH 40
typedef struct ObLobLocator
{
uint32_t magic_code_;
uint32_t version_;
int64_t snapshot_version_;
uint64_t table_id_;
uint32_t column_id_;
uint16_t mode_; // extend flag: inlin and other types
uint16_t option_; // storage option: compress/ encrypt / dedup
uint32_t payload_offset_; // == rowid_size; payload = data_ + payload_offset_
uint32_t payload_size_;
char data_[1]; // rowid + varchar
} OB_LOB_LOCATOR;
typedef struct st_ObClientMemLobCommon
{
uint32_t magic_; // Keep the old version consistent
uint32_t version_ : 8;
uint32_t type_ : 4; // Persistent/TmpFull/TmpDelta
uint32_t read_only_ : 1; // Whether to write
uint32_t is_inrow_ : 1;
uint32_t is_open_ : 1; // only persist lob could be open
uint32_t is_simple : 1;
uint32_t has_extern : 1;
uint32_t reserved_ : 15;
}ObClientMemLobCommon;
typedef struct st_ObClientMemLobExternHeader
{
int64_t snapshot_ver_;
uint64_t table_id_;
uint32_t column_idx_;
uint16_t has_tx_info : 1;
uint16_t has_cid_hash : 1;
uint16_t has_view_info : 1;
uint16_t extern_flags_ : 13;
uint16_t rowkey_size_;
uint32_t payload_offset_;
uint32_t payload_size_;
}ObClientMemLobExternHeader;
typedef struct st_ObClientLobCommon
{
uint32_t version_ : 8;
uint32_t is_init_ : 1;
uint32_t is_empty_ : 1;
uint32_t in_row_ : 1;
uint32_t opt_encrypt_ : 1;
uint32_t opt_compress_ : 1;
uint32_t opt_deduplicate_ : 1;
uint32_t has_content_type_ : 1;
uint32_t use_big_endian_ : 1;
uint32_t is_mem_loc_ : 1;
uint32_t reserve_ : 15;
}ObClientLobCommon;
typedef struct st_ObClientLobData
{
uint64_t tablet_id_;
uint64_t lob_id_;
uint64_t byte_size_;
}ObClientLobData;
typedef struct ObLobLocatorV2
{
ObClientMemLobCommon common;
ObClientMemLobExternHeader extern_header;
char data_[1];
}OB_LOB_LOCATOR_V2;
uint8_t get_ob_lob_locator_version(void *lob);
int64_t get_ob_lob_payload_data_len(void *lob);
int stmt_get_data_from_lobv2(MYSQL *mysql, void * lob, enum_field_types dty,
int64_t char_offset, int64_t byte_offset, int64_t char_len, int64_t byte_len, char *buf, const int64_t buf_len, int64_t *data_len, int64_t *act_len);
typedef struct st_mysqlnd_upsert_result
{
unsigned int warning_count;
unsigned int server_status;
unsigned long long affected_rows;
unsigned long long last_insert_id;
} mysql_upsert_status;
typedef struct st_mysql_cmd_buffer
{
unsigned char *buffer;
size_t length;
} MYSQL_CMD_BUFFER;
typedef struct st_mysql_error_info
{
unsigned int error_no;
char error[MYSQL_ERRMSG_SIZE+1];
char sqlstate[SQLSTATE_LENGTH + 1];
} mysql_error_info;
struct st_mysqlnd_stmt_methods
{
my_bool (*prepare)(const MYSQL_STMT * stmt, const char * const query, size_t query_len);
my_bool (*execute)(const MYSQL_STMT * stmt);
MYSQL_RES * (*use_result)(const MYSQL_STMT * stmt);
MYSQL_RES * (*store_result)(const MYSQL_STMT * stmt);
MYSQL_RES * (*get_result)(const MYSQL_STMT * stmt);
my_bool (*free_result)(const MYSQL_STMT * stmt);
my_bool (*seek_data)(const MYSQL_STMT * stmt, unsigned long long row);
my_bool (*reset)(const MYSQL_STMT * stmt);
my_bool (*close)(const MYSQL_STMT * stmt); /* private */
my_bool (*dtor)(const MYSQL_STMT * stmt); /* use this for mysqlnd_stmt_close */
my_bool (*fetch)(const MYSQL_STMT * stmt, my_bool * const fetched_anything);
my_bool (*bind_param)(const MYSQL_STMT * stmt, const MYSQL_BIND bind);
my_bool (*refresh_bind_param)(const MYSQL_STMT * stmt);
my_bool (*bind_result)(const MYSQL_STMT * stmt, const MYSQL_BIND *bind);
my_bool (*send_long_data)(const MYSQL_STMT * stmt, unsigned int param_num,
const char * const data, size_t length);
MYSQL_RES *(*get_parameter_metadata)(const MYSQL_STMT * stmt);
MYSQL_RES *(*get_result_metadata)(const MYSQL_STMT * stmt);
unsigned long long (*get_last_insert_id)(const MYSQL_STMT * stmt);
unsigned long long (*get_affected_rows)(const MYSQL_STMT * stmt);
unsigned long long (*get_num_rows)(const MYSQL_STMT * stmt);
unsigned int (*get_param_count)(const MYSQL_STMT * stmt);
unsigned int (*get_field_count)(const MYSQL_STMT * stmt);
unsigned int (*get_warning_count)(const MYSQL_STMT * stmt);
unsigned int (*get_error_no)(const MYSQL_STMT * stmt);
const char * (*get_error_str)(const MYSQL_STMT * stmt);
const char * (*get_sqlstate)(const MYSQL_STMT * stmt);
my_bool (*get_attribute)(const MYSQL_STMT * stmt, enum enum_stmt_attr_type attr_type, const void * value);
my_bool (*set_attribute)(const MYSQL_STMT * stmt, enum enum_stmt_attr_type attr_type, const void * value);
void (*set_error)(MYSQL_STMT *stmt, unsigned int error_nr, const char *sqlstate, const char *format, ...);
};
typedef int (*mysql_stmt_fetch_row_func)(MYSQL_STMT *stmt, unsigned char **row);
typedef void (*ps_result_callback)(void *data, unsigned int column, unsigned char **row);
typedef my_bool *(*ps_param_callback)(void *data, MYSQL_BIND *bind, unsigned int row_nr);
struct st_mysql_stmt
{
MA_MEM_ROOT mem_root;
MYSQL *mysql;
unsigned long stmt_id;
unsigned long flags;/* cursor is set here */
enum_mysqlnd_stmt_state state;
MYSQL_FIELD *fields;
unsigned int field_count;
unsigned int param_count;
unsigned char send_types_to_server;
MYSQL_BIND *params;
MYSQL_BIND *bind;
MYSQL_FIELD *param_fields; /* result set metadata */
MYSQL_DATA result; /* we don't use mysqlnd's result set logic */
MYSQL_ROWS *result_cursor;
my_bool bind_result_done;
my_bool bind_param_done;
mysql_upsert_status upsert_status;
unsigned int last_errno;
char last_error[MYSQL_ERRMSG_SIZE+1];
char sqlstate[SQLSTATE_LENGTH + 1];
my_bool update_max_length;
unsigned long prefetch_rows;
LIST list;
my_bool cursor_exists;
void *extension;
mysql_stmt_fetch_row_func fetch_row_func;
unsigned int execute_count;/* count how many times the stmt was executed */
mysql_stmt_use_or_store_func default_rset_handler;
struct st_mysqlnd_stmt_methods *m;
unsigned int array_size;
size_t row_size;
unsigned int prebind_params;
void *user_data;
ps_result_callback result_callback;
ps_param_callback param_callback;
/*add for support prepare_execute protocol*/
unsigned int bind_size;
unsigned int iteration_count;
unsigned int execute_mode;
unsigned int check_sum;
my_bool use_prepare_execute;
/*
* Added for RETURNING...INTO to handle the resultset
**/
my_bool is_handle_returning_into; /* is handling the result of returning into */
my_bool has_added_user_fields; /* will be set if user's field info has added */
my_bool is_pl_out_resultset; /* will be set for resultset of PL out parameters. OBServer will be set since 3.2.2 */
/*end add for support prepare_execute protocol*/
unsigned short orientation; /* i.e. OCI_FETCH_ABSOLUTE - Fetches the row number (specified by fetch_offset parameter) in the result set using absolute positioning.*/
int fetch_offset; /* The offset to be used with the orientation parameter for changing the current row position */
unsigned long ext_flag; /* prepare_execute extend flag which need to be send to OBServer */
MA_MEM_ROOT param_fields_mem_root; /* param root allocations */
};
/*add for support send PLArray maxrarr_len*/
enum enum_mysql_send_plarray_maxrarrlen_flag
{
SEND_PLARRAY_MAXRARRLEN_FORCE_CLOSE = 0,
SEND_PLARRAY_MAXRARRLEN_AUTO_OPEN,
SEND_PLARRAY_MAXRARRLEN_FORCE_OPEN,
SEND_PLARRAY_MAXRARRLEN_FLAG_MAX,
};
my_bool determine_send_plarray_maxrarr_len(MYSQL *mysql);
my_bool get_support_send_plarray_maxrarr_len(MYSQL *mysql);
/*end for support send PLArray maxrarr_len*/
/*add for support plarray bindbyname */
enum enum_mysql_plarray_bindbyname
{
PLARRAY_BINDBYNAME_FORCE_CLOSE = 0,
PLARRAY_BINDBYNAME_AUTO_OPEN,
PLARRAY_BINDBYNAME_FORCE_OPEN,
PLARRAY_BINDBYNAME_FLAG_MAX,
};
my_bool determine_plarray_bindbyname(MYSQL *mysql);
my_bool get_support_plarray_bindbyname(MYSQL *mysql);
/*end for support plarray bindbyname */
/*add for support protocol ob20*/
enum enum_ob20_protocol
{
PROTOCOL_OB20_FORCE_CLOSE = 0,
PROTOCOL_OB20_AUTO_OPEN,
PROTOCOL_OB20_FORCE_OPEN,
PROTOCOL_OB20_FLAG_MAX
};
my_bool determine_protocol_ob20(MYSQL *mysql);
my_bool get_use_protocol_ob20(MYSQL *mysql);
enum enum_full_link_trace
{
PROTOCOL_FLT_FORCE_CLOSE = 0,
PROTOCOL_FLT_AUTO_OPEN,
PROTOCOL_FLT_FORCE_OPEN,
PROTOCOL_FLT_FLAG_MAX
};
my_bool determine_full_link_trace(MYSQL *mysql);
my_bool get_use_full_link_trace(MYSQL *mysql);
enum enum_flt_show_trace
{
FLT_SHOW_TRACE_FORCE_CLOSE = 0,
FLT_SHOW_TRACE_AUTO_OPEN,
FLT_SHOW_TRACE_FORCE_OPEN,
FLT_SHOW_TRACE_FLAG_MAX
};
my_bool determine_flt_show_trace(MYSQL *mysql);
my_bool get_use_flt_show_trace(MYSQL *mysql);
uint32_t ob_crc32(uint64_t crc, const char *buf, int64_t len);
uint64_t ob_crc64(uint64_t crc, const char *buf, int64_t len);
/*end for support protocol ob20*/
enum enum_ob_client_lob_locatorv2
{
OB_CLIENT_LOB_LOCATORV2_FORCE_CLOSE = 0,
OB_CLIENT_LOB_LOCATORV2_AUTO_OPEN,
OB_CLIENT_LOB_LOCATORV2_FORCE_OPEN,
OB_CLIENT_LOB_LOCATORV2_FLAY_MAX
};
my_bool determine_ob_client_lob_locatorv2(MYSQL *mysql);
my_bool get_use_ob_client_lob_locatorv2(MYSQL *mysql);
/*end for support lobv2*/
enum enum_load_infiles
{
LOAD_INFILES_FORCE_CLOSE = 0,
LOAD_INFILES_AUTO_OPEN,
LOAD_INFILES_FORCE_OPEN,
LOAD_INFILES_FLAY_MAX
};
my_bool determine_load_infiles(MYSQL *mysql);
my_bool get_use_load_infiles(MYSQL *mysql);
/*end for load infiles*/
/* add for support bindbyname for plarray */
struct prepare_extend_args_t
{
unsigned int params_count; // pass params_ount from caller
};
typedef struct prepare_extend_args_t PREPARE_EXTEND_ARGS;
// todo: add a switch to accept args
/* end for support bindbyname for plarray */
enum enum_mysql_prepare_execute_flag
{
PREPARE_EXECUTE_FORCE_CLOSE = 0,
PREPARE_EXECUTE_AUTO_OPEN,
PREPARE_EXECUTE_FORCE_OPEN,
PREPARE_EXECUTE_FLAG_MAX
};
/*add for support prepare_execute protocol*/
my_bool determine_use_prepare_execute(MYSQL *mysql);
my_bool get_support_send_fetch_flag(MYSQL *mysql);
my_bool get_use_prepare_execute(MYSQL* msyql);
my_bool get_use_preapre_execute(MYSQL* msyql);
/*end add for support prepare_execute protocol*/
/*add for support new prepare_execute mode*/
//same value as OCI
#define EXECUTE_BATCH_MODE 0x00000001 /* batch the oci stmt for exec */
#define EXECUTE_EXACT_FETCH 0x00000002 /* fetch exact rows specified */
/* #define 0x00000004 available */
#define EXECUTE_STMT_SCROLLABLE_READONLY \
0x00000008 /* if result set is scrollable */
#define EXECUTE_DESCRIBE_ONLY 0x00000010 /* only describe the statement */
#define EXECUTE_COMMIT_ON_SUCCESS 0x00000020 /* commit, if successful exec */
#define EXECUTE_NON_BLOCKING 0x00000040 /* non-blocking */
#define EXECUTE_BATCH_ERRORS 0x00000080 /* batch errors in array dmls */
#define EXECUTE_PARSE_ONLY 0x00000100 /* only parse the statement */
#define EXECUTE_EXACT_FETCH_RESERVED_1 0x00000200 /* reserved */
/*add for support new prepare_execute mode*/
/*add for support fetch flag*/
#define FETCH_RETURN_EXTRA_OK 0x00000001L
#define FETCH_HAS_PIECE_COLUMN 0x00000002L
//same as oci fetch orientation
#define CURSOR_FETCH_DEFAULT 0x00000000
#define CURSOR_FETCH_CURRENT 0x00000001 /* refetching current position */
#define CURSOR_FETCH_NEXT 0x00000002 /* next row */
#define CURSOR_FETCH_FIRST 0x00000004 /* first row of the result set */
#define CURSOR_FETCH_LAST 0x00000008 /* the last row of the result set */
#define CURSOR_FETCH_PRIOR 0x00000010 /* previous row relative to current */
#define CURSOR_FETCH_ABSOLUTE 0x00000020 /* absolute offset from first */
#define CURSOR__FETCH_RELATIVE 0x00000040 /* offset relative to current */
#define CURSOR__FETCH_RESERVED_1 0x00000080 /* reserved */
#define CURSOR__FETCH_RESERVED_2 0x00000100 /* reserved */
#define CURSOR__FETCH_RESERVED_3 0x00000200 /* reserved */
#define CURSOR__FETCH_RESERVED_4 0x00000400 /* reserved */
#define CURSOR__FETCH_RESERVED_5 0x00000800 /* reserved */
#define CURSOR__FETCH_RESERVED_6 0x00001000 /* reserved */
/*end add for support fetch flag*/
#define NEED_DATA_AT_EXEC_FLAG 0x00000001
typedef void (*ps_field_fetch_func)(MYSQL_BIND *r_param, const MYSQL_FIELD * field, unsigned char **row);
typedef struct st_mysql_perm_bind {
ps_field_fetch_func func;
/* should be signed int */
int pack_len;
unsigned long max_len;
} MYSQL_PS_CONVERSION;
extern MYSQL_PS_CONVERSION mysql_ps_fetch_functions[MYSQL_TYPE_GEOMETRY + 2];
unsigned long ma_net_safe_read(MYSQL *mysql);
void mysql_init_ps_subsystem(void);
unsigned long net_field_length(unsigned char **packet);
int ma_simple_command(MYSQL *mysql,enum enum_server_command command, const char *arg,
size_t length, my_bool skipp_check, void *opt_arg);
/*
* function prototypes
*/
MYSQL_STMT * STDCALL mysql_stmt_init(MYSQL *mysql);
int STDCALL mysql_stmt_prepare(MYSQL_STMT *stmt, const char *query, unsigned long length);
int STDCALL mysql_stmt_execute(MYSQL_STMT *stmt);
int STDCALL mysql_stmt_prepare_v2(MYSQL_STMT *stmt, const char *query, unsigned long length, void* extend_arg);
int STDCALL mysql_stmt_execute_v2(MYSQL_STMT *stmt, const char *query, unsigned long length, unsigned int iteration_count, int execute_mode, void* extend_arg);
int STDCALL mysql_stmt_fetch(MYSQL_STMT *stmt);
int STDCALL mysql_stmt_fetch_column(MYSQL_STMT *stmt, MYSQL_BIND *bind_arg, unsigned int column, unsigned long offset);
int STDCALL mysql_stmt_store_result(MYSQL_STMT *stmt);
my_bool STDCALL mysql_stmt_send_piece_data(MYSQL_STMT *stmt, unsigned int param_number,
const char *data, unsigned long length,
char piece_type, char is_null);
my_bool STDCALL mysql_stmt_read_piece_data(MYSQL_STMT *stmt, unsigned int param_number,
unsigned short orientation, int scroll_offset,
unsigned long data_len, unsigned char *piece_type, unsigned long *ret_data_len);
/*
* add for RETURNING INTO resultset's flag
**/
my_bool STDCALL is_returning_result(MYSQL_STMT *stmt);
my_bool STDCALL has_added_user_fields(MYSQL_STMT *stmt);
/* add pl out resultset flag, observer since 3.2.2 */
my_bool STDCALL is_pl_out_result(MYSQL_STMT *stmt);
unsigned long STDCALL stmt_pre_exe_req_ext_flag_get(MYSQL_STMT *stmt);
void STDCALL stmt_pre_exe_req_ext_flag_set(MYSQL_STMT *stmt, unsigned long flag);
/*
* add oracle_mode fetch method
*/
int STDCALL mysql_stmt_fetch_oracle_cursor(MYSQL_STMT *stmt);
int STDCALL mysql_stmt_fetch_oracle_implicit_cursor(MYSQL_STMT *stmt, my_bool is_need_fetch_from_server);
int STDCALL mysql_stmt_fetch_oracle_buffered_result(MYSQL_STMT *stmt);
/*
* end add oracle_mode fetch method
*/
unsigned long STDCALL mysql_stmt_param_count(MYSQL_STMT * stmt);
my_bool STDCALL mysql_stmt_attr_set(MYSQL_STMT *stmt, enum enum_stmt_attr_type attr_type, const void *attr);
my_bool STDCALL mysql_stmt_attr_get(MYSQL_STMT *stmt, enum enum_stmt_attr_type attr_type, void *attr);
my_bool STDCALL mysql_stmt_bind_param(MYSQL_STMT * stmt, MYSQL_BIND * bnd);
my_bool STDCALL mysql_stmt_bind_result(MYSQL_STMT * stmt, MYSQL_BIND * bnd);
my_bool STDCALL mysql_stmt_close(MYSQL_STMT * stmt);
my_bool STDCALL mysql_stmt_reset(MYSQL_STMT * stmt);
my_bool STDCALL mysql_stmt_free_result(MYSQL_STMT *stmt);
my_bool STDCALL mysql_stmt_send_long_data(MYSQL_STMT *stmt, unsigned int param_number, const char *data, unsigned long length);
MYSQL_RES *STDCALL mysql_stmt_result_metadata(MYSQL_STMT *stmt);
MYSQL_RES *STDCALL mysql_stmt_param_metadata(MYSQL_STMT *stmt);
unsigned int STDCALL mysql_stmt_errno(MYSQL_STMT * stmt);
const char *STDCALL mysql_stmt_error(MYSQL_STMT * stmt);
const char *STDCALL mysql_stmt_sqlstate(MYSQL_STMT * stmt);
MYSQL_ROW_OFFSET STDCALL mysql_stmt_row_seek(MYSQL_STMT *stmt, MYSQL_ROW_OFFSET offset);
MYSQL_ROW_OFFSET STDCALL mysql_stmt_row_tell(MYSQL_STMT *stmt);
void STDCALL mysql_stmt_data_seek(MYSQL_STMT *stmt, unsigned long long offset);
unsigned long long STDCALL mysql_stmt_num_rows(MYSQL_STMT *stmt);
unsigned long long STDCALL mysql_stmt_affected_rows(MYSQL_STMT *stmt);
unsigned long long STDCALL mysql_stmt_insert_id(MYSQL_STMT *stmt);
unsigned int STDCALL mysql_stmt_field_count(MYSQL_STMT *stmt);
int STDCALL mysql_stmt_next_result(MYSQL_STMT *stmt);
my_bool STDCALL mysql_stmt_more_results(MYSQL_STMT *stmt);
int STDCALL mariadb_stmt_execute_direct(MYSQL_STMT *stmt, const char *stmt_str, size_t length);
MYSQL_FIELD * STDCALL mariadb_stmt_fetch_fields(MYSQL_STMT *stmt);
void end_server(MYSQL *mysql);
void free_old_query(MYSQL *mysql);