MySQL 8.0.33
Source Code Documentation

Information about changes in a single transaction affecting the FTS system. More...
#include <fts0fts.h>
Public Attributes  
trx_t *  trx 
InnoDB transaction. More...  
ib_vector_t *  savepoints 
Active savepoints, must have at least one element, the implied savepoint. More...  
ib_vector_t *  last_stmt 
last_stmt More...  
mem_heap_t *  heap 
heap More...  
Information about changes in a single transaction affecting the FTS system.
mem_heap_t* fts_trx_t::heap 
heap
ib_vector_t* fts_trx_t::last_stmt 
last_stmt
ib_vector_t* fts_trx_t::savepoints 
Active savepoints, must have at least one element, the implied savepoint.
trx_t* fts_trx_t::trx 
InnoDB transaction.