text: /*
  ** 2006 June 7
  **
  ** The author disclaims copyright to this source code.  In place of
  ** a legal notice, here is a blessing:
  **
  **    May you do good and not evil.
  **    May you find forgiveness for yourself and forgive others.
  **    May you share freely, never taking more than you give.
  **
  *************************************************************************
  ** This header file defines the SQLite interface for use by
  ** shared libraries that want to be imported as extensions into
  ** an SQLite instance.  Shared libraries that intend to be loaded
  ** as extensions by SQLite should #include this file instead of 
  ** sqlite3.h.
  */
  #ifndef SQLITE3EXT_H
  #define SQLITE3EXT_H
  #include "sqlite3.h"
  
  /*
  ** The following structure holds pointers to all of the SQLite API
  ** routines.
  **
  ** WARNING:  In order to maintain backwards compatibility, add new
  ** interfaces to the end of this structure only.  If you insert new
  ** interfaces in the middle of this structure, then older different
  ** versions of SQLite will not be able to load each other's shared
  ** libraries!
  */
  struct sqlite3_api_routines {
    void * (*aggregate_context)(sqlite3_context*,int nBytes);
    int  (*aggregate_count)(sqlite3_context*);
    int  (*bind_blob)(sqlite3_stmt*,int,const void*,int n,void(*)(void*));
    int  (*bind_double)(sqlite3_stmt*,int,double);
    int  (*bind_int)(sqlite3_stmt*,int,int);
    int  (*bind_int64)(sqlite3_stmt*,int,sqlite_int64);
    int  (*bind_null)(sqlite3_stmt*,int);
    int  (*bind_parameter_count)(sqlite3_stmt*);
    int  (*bind_parameter_index)(sqlite3_stmt*,const char*zName);
    const char * (*bind_parameter_name)(sqlite3_stmt*,int);
    int  (*bind_text)(sqlite3_stmt*,int,const char*,int n,void(*)(void*));
    int  (*bind_text16)(sqlite3_stmt*,int,const void*,int,void(*)(void*));
    int  (*bind_value)(sqlite3_stmt*,int,const sqlite3_value*);
    int  (*busy_handler)(sqlite3*,int(*)(void*,int),void*);
    int  (*busy_timeout)(sqlite3*,int ms);
    int  (*changes)(sqlite3*);
    int  (*close)(sqlite3*);
    int  (*collation_needed)(sqlite3*,void*,void(*)(void*,sqlite3*,
                             int eTextRep,const char*));
    int  (*collation_needed16)(sqlite3*,void*,void(*)(void*,sqlite3*,
                               int eTextRep,const void*));
    const void * (*column_blob)(sqlite3_stmt*,int iCol);
    int  (*column_bytes)(sqlite3_stmt*,int iCol);
    int  (*column_bytes16)(sqlite3_stmt*,int iCol);
    int  (*column_count)(sqlite3_stmt*pStmt);
    const char * (*column_database_name)(sqlite3_stmt*,int);
    const void * (*column_database_name16)(sqlite3_stmt*,int);
    const char * (*column_decltype)(sqlite3_stmt*,int i);
    const void * (*column_decltype16)(sqlite3_stmt*,int);
    double  (*column_double)(sqlite3_stmt*,int iCol);
    int  (*column_int)(sqlite3_stmt*,int iCol);
    sqlite_int64  (*column_int64)(sqlite3_stmt*,int iCol);
    const char * (*column_name)(sqlite3_stmt*,int);
    const void * (*column_name16)(sqlite3_stmt*,int);
    const char * (*column_origin_name)(sqlite3_stmt*,int);
    const void * (*column_origin_name16)(sqlite3_stmt*,int);
    const char * (*column_table_name)(sqlite3_stmt*,int);
    const void * (*column_table_name16)(sqlite3_stmt*,int);
    const unsigned char * (*column_text)(sqlite3_stmt*,int iCol);
    const void * (*column_text16)(sqlite3_stmt*,int iCol);
    int  (*column_type)(sqlite3_stmt*,int iCol);
    sqlite3_value* (*column_value)(sqlite3_stmt*,int iCol);
    void * (*commit_hook)(sqlite3*,int(*)(void*),void*);
    int  (*complete)(const char*sql);
    int  (*complete16)(const void*sql);
    int  (*create_collation)(sqlite3*,const char*,int,void*,
                             int(*)(void*,int,const void*,int,const void*));
    int  (*create_collation16)(sqlite3*,const void*,int,void*,
                               int(*)(void*,int,const void*,int,const void*));
    int  (*create_function)(sqlite3*,const char*,int,int,void*,
                            void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
                            void (*xStep)(sqlite3_context*,int,sqlite3_value**),
                            void (*xFinal)(sqlite3_context*));
    int  (*create_function16)(sqlite3*,const void*,int,int,void*,
                              void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
                              void (*xStep)(sqlite3_context*,int,sqlite3_value**),
                              void (*xFinal)(sqlite3_context*));
    int (*create_module)(sqlite3*,const char*,const sqlite3_module*,void*);
    int  (*data_count)(sqlite3_stmt*pStmt);
    sqlite3 * (*db_handle)(sqlite3_stmt*);
    int (*declare_vtab)(sqlite3*,const char*);
    int  (*enable_shared_cache)(int);
    int  (*errcode)(sqlite3*db);
    const char * (*errmsg)(sqlite3*);
    const void * (*errmsg16)(sqlite3*);
    int  (*exec)(sqlite3*,const char*,sqlite3_callback,void*,char**);
    int  (*expired)(sqlite3_stmt*);
    int  (*finalize)(sqlite3_stmt*pStmt);
    void  (*free)(void*);
    void  (*free_table)(char**result);
    int  (*get_autocommit)(sqlite3*);
    void * (*get_auxdata)(sqlite3_context*,int);
    int  (*get_table)(sqlite3*,const char*,char***,int*,int*,char**);
    int  (*global_recover)(void);
    void  (*interruptx)(sqlite3*);
    sqlite_int64  (*last_insert_rowid)(sqlite3*);
    const char * (*libversion)(void);
    int  (*libversion_number)(void);
    void *(*malloc)(int);
    char * (*mprintf)(const char*,...);
    int  (*open)(const char*,sqlite3**);
    int  (*open16)(const void*,sqlite3**);
    int  (*prepare)(sqlite3*,const char*,int,sqlite3_stmt**,const char**);
    int  (*prepare16)(sqlite3*,const void*,int,sqlite3_stmt**,const void**);
    void * (*profile)(sqlite3*,void(*)(void*,const char*,sqlite_uint64),void*);
    void  (*progress_handler)(sqlite3*,int,int(*)(void*),void*);
    void *(*realloc)(void*,int);
    int  (*reset)(sqlite3_stmt*pStmt);
    void  (*result_blob)(sqlite3_context*,const void*,int,void(*)(void*));
    void  (*result_double)(sqlite3_context*,double);
    void  (*result_error)(sqlite3_context*,const char*,int);
    void  (*result_error16)(sqlite3_context*,const void*,int);
    void  (*result_int)(sqlite3_context*,int);
    void  (*result_int64)(sqlite3_context*,sqlite_int64);
    void  (*result_null)(sqlite3_context*);
    void  (*result_text)(sqlite3_context*,const char*,int,void(*)(void*));
    void  (*result_text16)(sqlite3_context*,const void*,int,void(*)(void*));
    void  (*result_text16be)(sqlite3_context*,const void*,int,void(*)(void*));
    void  (*result_text16le)(sqlite3_context*,const void*,int,void(*)(void*));
    void  (*result_value)(sqlite3_context*,sqlite3_value*);
    void * (*rollback_hook)(sqlite3*,void(*)(void*),void*);
    int  (*set_authorizer)(sqlite3*,int(*)(void*,int,const char*,const char*,
                           const char*,const char*),void*);
    void  (*set_auxdata)(sqlite3_context*,int,void*,void (*)(void*));
    char * (*snprintf)(int,char*,const char*,...);
    int  (*step)(sqlite3_stmt*);
    int  (*table_column_metadata)(sqlite3*,const char*,const char*,const char*,
                                  char const**,char const**,int*,int*,int*);
    void  (*thread_cleanup)(void);
    int  (*total_changes)(sqlite3*);
    void * (*trace)(sqlite3*,void(*xTrace)(void*,const char*),void*);
    int  (*transfer_bindings)(sqlite3_stmt*,sqlite3_stmt*);
    void * (*update_hook)(sqlite3*,void(*)(void*,int ,char const*,char const*,
                                           sqlite_int64),void*);
    void * (*user_data)(sqlite3_context*);
    const void * (*value_blob)(sqlite3_value*);
    int  (*value_bytes)(sqlite3_value*);
    int  (*value_bytes16)(sqlite3_value*);
    double  (*value_double)(sqlite3_value*);
    int  (*value_int)(sqlite3_value*);
    sqlite_int64  (*value_int64)(sqlite3_value*);
    int  (*value_numeric_type)(sqlite3_value*);
    const unsigned char * (*value_text)(sqlite3_value*);
    const void * (*value_text16)(sqlite3_value*);
    const void * (*value_text16be)(sqlite3_value*);
    const void * (*value_text16le)(sqlite3_value*);
    int  (*value_type)(sqlite3_value*);
    char *(*vmprintf)(const char*,va_list);
    /* Added ??? */
    int (*overload_function)(sqlite3*, const char *zFuncName, int nArg);
    /* Added by 3.3.13 */
    int (*prepare_v2)(sqlite3*,const char*,int,sqlite3_stmt**,const char**);
    int (*prepare16_v2)(sqlite3*,const void*,int,sqlite3_stmt**,const void**);
    int (*clear_bindings)(sqlite3_stmt*);
    /* Added by 3.4.1 */
    int (*create_module_v2)(sqlite3*,const char*,const sqlite3_module*,void*,
                            void (*xDestroy)(void *));
    /* Added by 3.5.0 */
    int (*bind_zeroblob)(sqlite3_stmt*,int,int);
    int (*blob_bytes)(sqlite3_blob*);
    int (*blob_close)(sqlite3_blob*);
    int (*blob_open)(sqlite3*,const char*,const char*,const char*,sqlite3_int64,
                     int,sqlite3_blob**);
    int (*blob_read)(sqlite3_blob*,void*,int,int);
    int (*blob_write)(sqlite3_blob*,const void*,int,int);
    int (*create_collation_v2)(sqlite3*,const char*,int,void*,
                               int(*)(void*,int,const void*,int,const void*),
                               void(*)(void*));
    int (*file_control)(sqlite3*,const char*,int,void*);
    sqlite3_int64 (*memory_highwater)(int);
    sqlite3_int64 (*memory_used)(void);
    sqlite3_mutex *(*mutex_alloc)(int);
    void (*mutex_enter)(sqlite3_mutex*);
    void (*mutex_free)(sqlite3_mutex*);
    void (*mutex_leave)(sqlite3_mutex*);
    int (*mutex_try)(sqlite3_mutex*);
    int (*open_v2)(const char*,sqlite3**,int,const char*);
    int (*release_memory)(int);
    void (*result_error_nomem)(sqlite3_context*);
    void (*result_error_toobig)(sqlite3_context*);
    int (*sleep)(int);
    void (*soft_heap_limit)(int);
    sqlite3_vfs *(*vfs_find)(const char*);
    int (*vfs_register)(sqlite3_vfs*,int);
    int (*vfs_unregister)(sqlite3_vfs*);
    int (*xthreadsafe)(void);
    void (*result_zeroblob)(sqlite3_context*,int);
    void (*result_error_code)(sqlite3_context*,int);
    int (*test_control)(int, ...);
    void (*randomness)(int,void*);
    sqlite3 *(*context_db_handle)(sqlite3_context*);
    int (*extended_result_codes)(sqlite3*,int);
    int (*limit)(sqlite3*,int,int);
    sqlite3_stmt *(*next_stmt)(sqlite3*,sqlite3_stmt*);
    const char *(*sql)(sqlite3_stmt*);
    int (*status)(int,int*,int*,int);
    int (*backup_finish)(sqlite3_backup*);
    sqlite3_backup *(*backup_init)(sqlite3*,const char*,sqlite3*,const char*);
    int (*backup_pagecount)(sqlite3_backup*);
    int (*backup_remaining)(sqlite3_backup*);
    int (*backup_step)(sqlite3_backup*,int);
    const char *(*compileoption_get)(int);
    int (*compileoption_used)(const char*);
    int (*create_function_v2)(sqlite3*,const char*,int,int,void*,
                              void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
                              void (*xStep)(sqlite3_context*,int,sqlite3_value**),
                              void (*xFinal)(sqlite3_context*),
                              void(*xDestroy)(void*));
    int (*db_config)(sqlite3*,int,...);
    sqlite3_mutex *(*db_mutex)(sqlite3*);
    int (*db_status)(sqlite3*,int,int*,int*,int);
    int (*extended_errcode)(sqlite3*);
    void (*log)(int,const char*,...);
    sqlite3_int64 (*soft_heap_limit64)(sqlite3_int64);
    const char *(*sourceid)(void);
    int (*stmt_status)(sqlite3_stmt*,int,int);
    int (*strnicmp)(const char*,const char*,int);
    int (*unlock_notify)(sqlite3*,void(*)(void**,int),void*);
    int (*wal_autocheckpoint)(sqlite3*,int);
    int (*wal_checkpoint)(sqlite3*,const char*);
    void *(*wal_hook)(sqlite3*,int(*)(void*,sqlite3*,const char*,int),void*);
    int (*blob_reopen)(sqlite3_blob*,sqlite3_int64);
    int (*vtab_config)(sqlite3*,int op,...);
    int (*vtab_on_conflict)(sqlite3*);
    /* Version 3.7.16 and later */
    int (*close_v2)(sqlite3*);
    const char *(*db_filename)(sqlite3*,const char*);
    int (*db_readonly)(sqlite3*,const char*);
    int (*db_release_memory)(sqlite3*);
    const char *(*errstr)(int);
    int (*stmt_busy)(sqlite3_stmt*);
    int (*stmt_readonly)(sqlite3_stmt*);
    int (*stricmp)(const char*,const char*);
    int (*uri_boolean)(const char*,const char*,int);
    sqlite3_int64 (*uri_int64)(const char*,const char*,sqlite3_int64);
    const char *(*uri_parameter)(const char*,const char*);
    char *(*vsnprintf)(int,char*,const char*,va_list);
    int (*wal_checkpoint_v2)(sqlite3*,const char*,int,int*,int*);
    /* Version 3.8.7 and later */
    int (*auto_extension)(void(*)(void));
    int (*bind_blob64)(sqlite3_stmt*,int,const void*,sqlite3_uint64,
                       void(*)(void*));
    int (*bind_text64)(sqlite3_stmt*,int,const char*,sqlite3_uint64,
                        void(*)(void*),unsigned char);
    int (*cancel_auto_extension)(void(*)(void));
    int (*load_extension)(sqlite3*,const char*,const char*,char**);
    void *(*malloc64)(sqlite3_uint64);
    sqlite3_uint64 (*msize)(void*);
    void *(*realloc64)(void*,sqlite3_uint64);
    void (*reset_auto_extension)(void);
    void (*result_blob64)(sqlite3_context*,const void*,sqlite3_uint64,
                          void(*)(void*));
    void (*result_text64)(sqlite3_context*,const char*,sqlite3_uint64,
                           void(*)(void*), unsigned char);
    int (*strglob)(const char*,const char*);
    /* Version 3.8.11 and later */
    sqlite3_value *(*value_dup)(const sqlite3_value*);
    void (*value_free)(sqlite3_value*);
    int (*result_zeroblob64)(sqlite3_context*,sqlite3_uint64);
    int (*bind_zeroblob64)(sqlite3_stmt*, int, sqlite3_uint64);
    /* Version 3.9.0 and later */
    unsigned int (*value_subtype)(sqlite3_value*);
    void (*result_subtype)(sqlite3_context*,unsigned int);
    /* Version 3.10.0 and later */
    int (*status64)(int,sqlite3_int64*,sqlite3_int64*,int);
    int (*strlike)(const char*,const char*,unsigned int);
    int (*db_cacheflush)(sqlite3*);
    /* Version 3.12.0 and later */
    int (*system_errno)(sqlite3*);
    /* Version 3.14.0 and later */
    int (*trace_v2)(sqlite3*,unsigned,int(*)(unsigned,void*,void*,void*),void*);
    char *(*expanded_sql)(sqlite3_stmt*);
    /* Version 3.18.0 and later */
    void (*set_last_insert_rowid)(sqlite3*,sqlite3_int64);
    /* Version 3.20.0 and later */
    int (*prepare_v3)(sqlite3*,const char*,int,unsigned int,
                      sqlite3_stmt**,const char**);
    int (*prepare16_v3)(sqlite3*,const void*,int,unsigned int,
                        sqlite3_stmt**,const void**);
    int (*bind_pointer)(sqlite3_stmt*,int,void*,const char*,void(*)(void*));
    void (*result_pointer)(sqlite3_context*,void*,const char*,void(*)(void*));
    void *(*value_pointer)(sqlite3_value*,const char*);
  };
  
  /*
  ** This is the function signature used for all extension entry points.  It
  ** is also defined in the file "loadext.c".
  */
  typedef int (*sqlite3_loadext_entry)(
    sqlite3 *db,                       /* Handle to the database. */
    char **pzErrMsg,                   /* Used to set error string on failure. */
    const sqlite3_api_routines *pThunk /* Extension API function pointers. */
  );
  
  /*
  ** The following macros redefine the API routines so that they are
  ** redirected through the global sqlite3_api structure.
  **
  ** This header file is also used by the loadext.c source file
  ** (part of the main SQLite library - not an extension) so that
  ** it can get access to the sqlite3_api_routines structure
  ** definition.  But the main library does not want to redefine
  ** the API.  So the redefinition macros are only valid if the
  ** SQLITE_CORE macros is undefined.
  */
  #if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
  #define sqlite3_aggregate_context      sqlite3_api->aggregate_context
  #ifndef SQLITE_OMIT_DEPRECATED
  #define sqlite3_aggregate_count        sqlite3_api->aggregate_count
  #endif
  #define sqlite3_bind_blob              sqlite3_api->bind_blob
  #define sqlite3_bind_double            sqlite3_api->bind_double
  #define sqlite3_bind_int               sqlite3_api->bind_int
  #define sqlite3_bind_int64             sqlite3_api->bind_int64
  #define sqlite3_bind_null              sqlite3_api->bind_null
  #define sqlite3_bind_parameter_count   sqlite3_api->bind_parameter_count
  #define sqlite3_bind_parameter_index   sqlite3_api->bind_parameter_index
  #define sqlite3_bind_parameter_name    sqlite3_api->bind_parameter_name
  #define sqlite3_bind_text              sqlite3_api->bind_text
  #define sqlite3_bind_text16            sqlite3_api->bind_text16
  #define sqlite3_bind_value             sqlite3_api->bind_value
  #define sqlite3_busy_handler           sqlite3_api->busy_handler
  #define sqlite3_busy_timeout           sqlite3_api->busy_timeout
  #define sqlite3_changes                sqlite3_api->changes
  #define sqlite3_close                  sqlite3_api->close
  #define sqlite3_collation_needed       sqlite3_api->collation_needed
  #define sqlite3_collation_needed16     sqlite3_api->collation_needed16
  #define sqlite3_column_blob            sqlite3_api->column_blob
  #define sqlite3_column_bytes           sqlite3_api->column_bytes
  #define sqlite3_column_bytes16         sqlite3_api->column_bytes16
  #define sqlite3_column_count           sqlite3_api->column_count
  #define sqlite3_column_database_name   sqlite3_api->column_database_name
  #define sqlite3_column_database_name16 sqlite3_api->column_database_name16
  #define sqlite3_column_decltype        sqlite3_api->column_decltype
  #define sqlite3_column_decltype16      sqlite3_api->column_decltype16
  #define sqlite3_column_double          sqlite3_api->column_double
  #define sqlite3_column_int             sqlite3_api->column_int
  #define sqlite3_column_int64           sqlite3_api->column_int64
  #define sqlite3_column_name            sqlite3_api->column_name
  #define sqlite3_column_name16          sqlite3_api->column_name16
  #define sqlite3_column_origin_name     sqlite3_api->column_origin_name
  #define sqlite3_column_origin_name16   sqlite3_api->column_origin_name16
  #define sqlite3_column_table_name      sqlite3_api->column_table_name
  #define sqlite3_column_table_name16    sqlite3_api->column_table_name16
  #define sqlite3_column_text            sqlite3_api->column_text
  #define sqlite3_column_text16          sqlite3_api->column_text16
  #define sqlite3_column_type            sqlite3_api->column_type
  #define sqlite3_column_value           sqlite3_api->column_value
  #define sqlite3_commit_hook            sqlite3_api->commit_hook
  #define sqlite3_complete               sqlite3_api->complete
  #define sqlite3_complete16             sqlite3_api->complete16
  #define sqlite3_create_collation       sqlite3_api->create_collation
  #define sqlite3_create_collation16     sqlite3_api->create_collation16
  #define sqlite3_create_function        sqlite3_api->create_function
  #define sqlite3_create_function16      sqlite3_api->create_function16
  #define sqlite3_create_module          sqlite3_api->create_module
  #define sqlite3_create_module_v2       sqlite3_api->create_module_v2
  #define sqlite3_data_count             sqlite3_api->data_count
  #define sqlite3_db_handle              sqlite3_api->db_handle
  #define sqlite3_declare_vtab           sqlite3_api->declare_vtab
  #define sqlite3_enable_shared_cache    sqlite3_api->enable_shared_cache
  #define sqlite3_errcode                sqlite3_api->errcode
  #define sqlite3_errmsg                 sqlite3_api->errmsg
  #define sqlite3_errmsg16               sqlite3_api->errmsg16
  #define sqlite3_exec                   sqlite3_api->exec
  #ifndef SQLITE_OMIT_DEPRECATED
  #define sqlite3_expired                sqlite3_api->expired
  #endif
  #define sqlite3_finalize               sqlite3_api->finalize
  #define sqlite3_free                   sqlite3_api->free
  #define sqlite3_free_table             sqlite3_api->free_table
  #define sqlite3_get_autocommit         sqlite3_api->get_autocommit
  #define sqlite3_get_auxdata            sqlite3_api->get_auxdata
  #define sqlite3_get_table              sqlite3_api->get_table
  #ifndef SQLITE_OMIT_DEPRECATED
  #define sqlite3_global_recover         sqlite3_api->global_recover
  #endif
  #define sqlite3_interrupt              sqlite3_api->interruptx
  #define sqlite3_last_insert_rowid      sqlite3_api->last_insert_rowid
  #define sqlite3_libversion             sqlite3_api->libversion
  #define sqlite3_libversion_number      sqlite3_api->libversion_number
  #define sqlite3_malloc                 sqlite3_api->malloc
  #define sqlite3_mprintf                sqlite3_api->mprintf
  #define sqlite3_open                   sqlite3_api->open
  #define sqlite3_open16                 sqlite3_api->open16
  #define sqlite3_prepare                sqlite3_api->prepare
  #define sqlite3_prepare16              sqlite3_api->prepare16
  #define sqlite3_prepare_v2             sqlite3_api->prepare_v2
  #define sqlite3_prepare16_v2           sqlite3_api->prepare16_v2
  #define sqlite3_profile                sqlite3_api->profile
  #define sqlite3_progress_handler       sqlite3_api->progress_handler
  #define sqlite3_realloc                sqlite3_api->realloc
  #define sqlite3_reset                  sqlite3_api->reset
  #define sqlite3_result_blob            sqlite3_api->result_blob
  #define sqlite3_result_double          sqlite3_api->result_double
  #define sqlite3_result_error           sqlite3_api->result_error
  #define sqlite3_result_error16         sqlite3_api->result_error16
  #define sqlite3_result_int             sqlite3_api->result_int
  #define sqlite3_result_int64           sqlite3_api->result_int64
  #define sqlite3_result_null            sqlite3_api->result_null
  #define sqlite3_result_text            sqlite3_api->result_text
  #define sqlite3_result_text16          sqlite3_api->result_text16
  #define sqlite3_result_text16be        sqlite3_api->result_text16be
  #define sqlite3_result_text16le        sqlite3_api->result_text16le
  #define sqlite3_result_value           sqlite3_api->result_value
  #define sqlite3_rollback_hook          sqlite3_api->rollback_hook
  #define sqlite3_set_authorizer         sqlite3_api->set_authorizer
  #define sqlite3_set_auxdata            sqlite3_api->set_auxdata
  #define sqlite3_snprintf               sqlite3_api->snprintf
  #define sqlite3_step                   sqlite3_api->step
  #define sqlite3_table_column_metadata  sqlite3_api->table_column_metadata
  #define sqlite3_thread_cleanup         sqlite3_api->thread_cleanup
  #define sqlite3_total_changes          sqlite3_api->total_changes
  #define sqlite3_trace                  sqlite3_api->trace
  #ifndef SQLITE_OMIT_DEPRECATED
  #define sqlite3_transfer_bindings      sqlite3_api->transfer_bindings
  #endif
  #define sqlite3_update_hook            sqlite3_api->update_hook
  #define sqlite3_user_data              sqlite3_api->user_data
  #define sqlite3_value_blob             sqlite3_api->value_blob
  #define sqlite3_value_bytes            sqlite3_api->value_bytes
  #define sqlite3_value_bytes16          sqlite3_api->value_bytes16
  #define sqlite3_value_double           sqlite3_api->value_double
  #define sqlite3_value_int              sqlite3_api->value_int
  #define sqlite3_value_int64            sqlite3_api->value_int64
  #define sqlite3_value_numeric_type     sqlite3_api->value_numeric_type
  #define sqlite3_value_text             sqlite3_api->value_text
  #define sqlite3_value_text16           sqlite3_api->value_text16
  #define sqlite3_value_text16be         sqlite3_api->value_text16be
  #define sqlite3_value_text16le         sqlite3_api->value_text16le
  #define sqlite3_value_type             sqlite3_api->value_type
  #define sqlite3_vmprintf               sqlite3_api->vmprintf
  #define sqlite3_vsnprintf              sqlite3_api->vsnprintf
  #define sqlite3_overload_function      sqlite3_api->overload_function
  #define sqlite3_prepare_v2             sqlite3_api->prepare_v2
  #define sqlite3_prepare16_v2           sqlite3_api->prepare16_v2
  #define sqlite3_clear_bindings         sqlite3_api->clear_bindings
  #define sqlite3_bind_zeroblob          sqlite3_api->bind_zeroblob
  #define sqlite3_blob_bytes             sqlite3_api->blob_bytes
  #define sqlite3_blob_close             sqlite3_api->blob_close
  #define sqlite3_blob_open              sqlite3_api->blob_open
  #define sqlite3_blob_read              sqlite3_api->blob_read
  #define sqlite3_blob_write             sqlite3_api->blob_write
  #define sqlite3_create_collation_v2    sqlite3_api->create_collation_v2
  #define sqlite3_file_control           sqlite3_api->file_control
  #define sqlite3_memory_highwater       sqlite3_api->memory_highwater
  #define sqlite3_memory_used            sqlite3_api->memory_used
  #define sqlite3_mutex_alloc            sqlite3_api->mutex_alloc
  #define sqlite3_mutex_enter            sqlite3_api->mutex_enter
  #define sqlite3_mutex_free             sqlite3_api->mutex_free
  #define sqlite3_mutex_leave            sqlite3_api->mutex_leave
  #define sqlite3_mutex_try              sqlite3_api->mutex_try
  #define sqlite3_open_v2                sqlite3_api->open_v2
  #define sqlite3_release_memory         sqlite3_api->release_memory
  #define sqlite3_result_error_nomem     sqlite3_api->result_error_nomem
  #define sqlite3_result_error_toobig    sqlite3_api->result_error_toobig
  #define sqlite3_sleep                  sqlite3_api->sleep
  #define sqlite3_soft_heap_limit        sqlite3_api->soft_heap_limit
  #define sqlite3_vfs_find               sqlite3_api->vfs_find
  #define sqlite3_vfs_register           sqlite3_api->vfs_register
  #define sqlite3_vfs_unregister         sqlite3_api->vfs_unregister
  #define sqlite3_threadsafe             sqlite3_api->xthreadsafe
  #define sqlite3_result_zeroblob        sqlite3_api->result_zeroblob
  #define sqlite3_result_error_code      sqlite3_api->result_error_code
  #define sqlite3_test_control           sqlite3_api->test_control
  #define sqlite3_randomness             sqlite3_api->randomness
  #define sqlite3_context_db_handle      sqlite3_api->context_db_handle
  #define sqlite3_extended_result_codes  sqlite3_api->extended_result_codes
  #define sqlite3_limit                  sqlite3_api->limit
  #define sqlite3_next_stmt              sqlite3_api->next_stmt
  #define sqlite3_sql                    sqlite3_api->sql
  #define sqlite3_status                 sqlite3_api->status
  #define sqlite3_backup_finish          sqlite3_api->backup_finish
  #define sqlite3_backup_init            sqlite3_api->backup_init
  #define sqlite3_backup_pagecount       sqlite3_api->backup_pagecount
  #define sqlite3_backup_remaining       sqlite3_api->backup_remaining
  #define sqlite3_backup_step            sqlite3_api->backup_step
  #define sqlite3_compileoption_get      sqlite3_api->compileoption_get
  #define sqlite3_compileoption_used     sqlite3_api->compileoption_used
  #define sqlite3_create_function_v2     sqlite3_api->create_function_v2
  #define sqlite3_db_config              sqlite3_api->db_config
  #define sqlite3_db_mutex               sqlite3_api->db_mutex
  #define sqlite3_db_status              sqlite3_api->db_status
  #define sqlite3_extended_errcode       sqlite3_api->extended_errcode
  #define sqlite3_log                    sqlite3_api->log
  #define sqlite3_soft_heap_limit64      sqlite3_api->soft_heap_limit64
  #define sqlite3_sourceid               sqlite3_api->sourceid
  #define sqlite3_stmt_status            sqlite3_api->stmt_status
  #define sqlite3_strnicmp               sqlite3_api->strnicmp
  #define sqlite3_unlock_notify          sqlite3_api->unlock_notify
  #define sqlite3_wal_autocheckpoint     sqlite3_api->wal_autocheckpoint
  #define sqlite3_wal_checkpoint         sqlite3_api->wal_checkpoint
  #define sqlite3_wal_hook               sqlite3_api->wal_hook
  #define sqlite3_blob_reopen            sqlite3_api->blob_reopen
  #define sqlite3_vtab_config            sqlite3_api->vtab_config
  #define sqlite3_vtab_on_conflict       sqlite3_api->vtab_on_conflict
  /* Version 3.7.16 and later */
  #define sqlite3_close_v2               sqlite3_api->close_v2
  #define sqlite3_db_filename            sqlite3_api->db_filename
  #define sqlite3_db_readonly            sqlite3_api->db_readonly
  #define sqlite3_db_release_memory      sqlite3_api->db_release_memory
  #define sqlite3_errstr                 sqlite3_api->errstr
  #define sqlite3_stmt_busy              sqlite3_api->stmt_busy
  #define sqlite3_stmt_readonly          sqlite3_api->stmt_readonly
  #define sqlite3_stricmp                sqlite3_api->stricmp
  #define sqlite3_uri_boolean            sqlite3_api->uri_boolean
  #define sqlite3_uri_int64              sqlite3_api->uri_int64
  #define sqlite3_uri_parameter          sqlite3_api->uri_parameter
  #define sqlite3_uri_vsnprintf          sqlite3_api->vsnprintf
  #define sqlite3_wal_checkpoint_v2      sqlite3_api->wal_checkpoint_v2
  /* Version 3.8.7 and later */
  #define sqlite3_auto_extension         sqlite3_api->auto_extension
  #define sqlite3_bind_blob64            sqlite3_api->bind_blob64
  #define sqlite3_bind_text64            sqlite3_api->bind_text64
  #define sqlite3_cancel_auto_extension  sqlite3_api->cancel_auto_extension
  #define sqlite3_load_extension         sqlite3_api->load_extension
  #define sqlite3_malloc64               sqlite3_api->malloc64
  #define sqlite3_msize                  sqlite3_api->msize
  #define sqlite3_realloc64              sqlite3_api->realloc64
  #define sqlite3_reset_auto_extension   sqlite3_api->reset_auto_extension
  #define sqlite3_result_blob64          sqlite3_api->result_blob64
  #define sqlite3_result_text64          sqlite3_api->result_text64
  #define sqlite3_strglob                sqlite3_api->strglob
  /* Version 3.8.11 and later */
  #define sqlite3_value_dup              sqlite3_api->value_dup
  #define sqlite3_value_free             sqlite3_api->value_free
  #define sqlite3_result_zeroblob64      sqlite3_api->result_zeroblob64
  #define sqlite3_bind_zeroblob64        sqlite3_api->bind_zeroblob64
  /* Version 3.9.0 and later */
  #define sqlite3_value_subtype          sqlite3_api->value_subtype
  #define sqlite3_result_subtype         sqlite3_api->result_subtype
  /* Version 3.10.0 and later */
  #define sqlite3_status64               sqlite3_api->status64
  #define sqlite3_strlike                sqlite3_api->strlike
  #define sqlite3_db_cacheflush          sqlite3_api->db_cacheflush
  /* Version 3.12.0 and later */
  #define sqlite3_system_errno           sqlite3_api->system_errno
  /* Version 3.14.0 and later */
  #define sqlite3_trace_v2               sqlite3_api->trace_v2
  #define sqlite3_expanded_sql           sqlite3_api->expanded_sql
  /* Version 3.18.0 and later */
  #define sqlite3_set_last_insert_rowid  sqlite3_api->set_last_insert_rowid
  /* Version 3.20.0 and later */
  #define sqlite3_prepare_v3             sqlite3_api->prepare_v3
  #define sqlite3_prepare16_v3           sqlite3_api->prepare16_v3
  #define sqlite3_bind_pointer           sqlite3_api->bind_pointer
  #define sqlite3_result_pointer         sqlite3_api->result_pointer
  #define sqlite3_value_pointer          sqlite3_api->value_pointer
  #endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */
  
  #if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
    /* This case when the file really is being compiled as a loadable 
    ** extension */
  # define SQLITE_EXTENSION_INIT1     const sqlite3_api_routines *sqlite3_api=0;
  # define SQLITE_EXTENSION_INIT2(v)  sqlite3_api=v;
  # define SQLITE_EXTENSION_INIT3     \
      extern const sqlite3_api_routines *sqlite3_api;
  #else
    /* This case when the file is being statically linked into the 
    ** application */
  # define SQLITE_EXTENSION_INIT1     /*no-op*/
  # define SQLITE_EXTENSION_INIT2(v)  (void)v; /* unused parameter */
  # define SQLITE_EXTENSION_INIT3     /*no-op*/
  #endif
  
  #endif /* SQLITE3EXT_H */
  