Documentation Home
MySQL Internals Manual


MySQL Internals Manual  /  ...  /  The myisammrg Directory

A.1.16 The myisammrg Directory

MyISAM Merge table handler.

As with other table handlers, you'll find that the *.c files in the myissammrg directory have counterparts in the myisam directory. In fact, this general description of a myisammrg program is almost always true: The myisammrg function checks an argument, the myisammrg function formulates an expression for passing to a myisam function, the myisammrg calls a myisam function, the myisammrg function returns.

These are the 22 files in the myisammrg directory, with notes about the myisam functions or programs they're connected with:

  • myrg_close.c --- mi_close.c

  • myrg_create.c --- mi_create.c

  • myrg_delete.c --- mi_delete.c / delete last-read record

  • myrg_extra.c --- mi_extra.c / "extra functions we want to do ..."

  • myrg_info.c --- mi_info.c / display information about a mymerge file

  • myrg_locking.c --- mi_locking.c / lock databases

  • myrg_open.c --- mi_open.c / open a MyISAM MERGE table

  • myrg_panic.c --- mi_panic.c / close in a hurry

  • myrg_queue.c --- read record based on a key

  • myrg_range.c --- mi_range.c / find records in a range

  • myrg_rfirst.c --- mi_rfirst.c / read first record according to specific key

  • myrg_rkey.c --- mi_rkey.c / read record based on a key

  • myrg_rlast.c --- mi_rlast.c / read last row with same key as previous read

  • myrg_rnext.c --- mi_rnext.c / read next row with same key as previous read

  • myrg_rnext_same.c --- mi_rnext_same.c / read next row with same key

  • myrg_rprev.c --- mi_rprev.c / read previous row with same key

  • myrg_rrnd.c --- mi_rrnd.c / read record with random access

  • myrg_rsame.c --- mi_rsame.c / call mi_rsame function, see \myisam\mi_rsame.c

  • myrg_static.c --- mi_static.c / static variable declaration

  • myrg_update.c --- mi_update.c / call mi_update function, see \myisam\mi_update.c

  • myrg_write.c --- mi_write.c / call mi_write function, see \myisam\mi_write.c


User Comments
User comments in this section are, as the name implies, provided by MySQL users. The MySQL documentation team is not responsible for, nor do they endorse, any of the information provided here.
Sign Up Login You must be logged in to post a comment.