Fifo              249 ext/pdo_sqlite/sqlite/src/vdbeInt.h typedef struct Fifo Fifo;
Fifo              269 ext/pdo_sqlite/sqlite/src/vdbeInt.h   Fifo sFifo;       /* Records that will participate in a DELETE or UPDATE */
Fifo              312 ext/pdo_sqlite/sqlite/src/vdbeInt.h   Fifo sFifo;             /* A list of ROWIDs */