1
by brian
clean slate |
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/******************************************************
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The index tree persistent cursor
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(c) 1996 Innobase Oy
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Created 2/23/1996 Heikki Tuuri
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*******************************************************/
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/*************************************************************
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Gets the rel_pos field for a cursor whose position has been stored. */
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UNIV_INLINE |
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ulint |
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btr_pcur_get_rel_pos(
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/*=================*/
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/* out: BTR_PCUR_ON, ... */ |
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btr_pcur_t* cursor) /* in: persistent cursor */ |
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{
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ut_ad(cursor); |
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ut_ad(cursor->old_rec); |
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ut_ad(cursor->old_stored == BTR_PCUR_OLD_STORED); |
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ut_ad(cursor->pos_state == BTR_PCUR_WAS_POSITIONED |
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|| cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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return(cursor->rel_pos); |
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}
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/*************************************************************
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Sets the mtr field for a pcur. */
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UNIV_INLINE |
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void |
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btr_pcur_set_mtr(
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/*=============*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in, own: mtr */ |
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{
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ut_ad(cursor); |
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cursor->mtr = mtr; |
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}
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/*************************************************************
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Gets the mtr field for a pcur. */
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UNIV_INLINE |
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mtr_t*
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btr_pcur_get_mtr(
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/*=============*/
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/* out: mtr */ |
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btr_pcur_t* cursor) /* in: persistent cursor */ |
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{
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ut_ad(cursor); |
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return(cursor->mtr); |
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}
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/*************************************************************
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Returns the btr cursor component of a persistent cursor. */
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UNIV_INLINE |
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btr_cur_t*
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btr_pcur_get_btr_cur(
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/*=================*/
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/* out: pointer to btr cursor component */ |
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btr_pcur_t* cursor) /* in: persistent cursor */ |
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{
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return(&(cursor->btr_cur)); |
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}
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/*************************************************************
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Returns the page cursor component of a persistent cursor. */
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UNIV_INLINE |
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page_cur_t*
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btr_pcur_get_page_cur(
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/*==================*/
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/* out: pointer to page cursor component */ |
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btr_pcur_t* cursor) /* in: persistent cursor */ |
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{
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return(btr_cur_get_page_cur(&(cursor->btr_cur))); |
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}
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/*************************************************************
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Returns the page of a persistent cursor. */
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UNIV_INLINE |
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page_t*
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btr_pcur_get_page(
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/*==============*/
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/* out: pointer to the page */ |
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btr_pcur_t* cursor) /* in: persistent cursor */ |
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{
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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return(page_cur_get_page(btr_pcur_get_page_cur(cursor))); |
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}
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/*************************************************************
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Returns the record of a persistent cursor. */
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UNIV_INLINE |
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rec_t*
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btr_pcur_get_rec(
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/*=============*/
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/* out: pointer to the record */ |
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btr_pcur_t* cursor) /* in: persistent cursor */ |
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{
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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return(page_cur_get_rec(btr_pcur_get_page_cur(cursor))); |
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}
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/******************************************************************
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Gets the up_match value for a pcur after a search. */
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UNIV_INLINE |
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ulint |
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btr_pcur_get_up_match(
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/*==================*/
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/* out: number of matched fields at the cursor |
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or to the right if search mode was PAGE_CUR_GE,
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otherwise undefined */
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btr_pcur_t* cursor) /* in: memory buffer for persistent cursor */ |
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{
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btr_cur_t* btr_cursor; |
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ut_ad((cursor->pos_state == BTR_PCUR_WAS_POSITIONED) |
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|| (cursor->pos_state == BTR_PCUR_IS_POSITIONED)); |
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btr_cursor = btr_pcur_get_btr_cur(cursor); |
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ut_ad(btr_cursor->up_match != ULINT_UNDEFINED); |
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return(btr_cursor->up_match); |
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}
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/******************************************************************
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Gets the low_match value for a pcur after a search. */
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UNIV_INLINE |
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ulint |
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btr_pcur_get_low_match(
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/*===================*/
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/* out: number of matched fields at the cursor |
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or to the right if search mode was PAGE_CUR_LE,
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otherwise undefined */
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btr_pcur_t* cursor) /* in: memory buffer for persistent cursor */ |
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{
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btr_cur_t* btr_cursor; |
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ut_ad((cursor->pos_state == BTR_PCUR_WAS_POSITIONED) |
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|| (cursor->pos_state == BTR_PCUR_IS_POSITIONED)); |
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btr_cursor = btr_pcur_get_btr_cur(cursor); |
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ut_ad(btr_cursor->low_match != ULINT_UNDEFINED); |
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return(btr_cursor->low_match); |
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}
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/*************************************************************
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Checks if the persistent cursor is after the last user record on
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a page. */
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UNIV_INLINE |
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ibool |
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btr_pcur_is_after_last_on_page(
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/*===========================*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in: mtr */ |
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{
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UT_NOT_USED(mtr); |
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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return(page_cur_is_after_last(btr_pcur_get_page_cur(cursor))); |
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}
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/*************************************************************
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Checks if the persistent cursor is before the first user record on
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a page. */
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UNIV_INLINE |
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ibool |
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btr_pcur_is_before_first_on_page(
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/*=============================*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in: mtr */ |
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{
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UT_NOT_USED(mtr); |
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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return(page_cur_is_before_first(btr_pcur_get_page_cur(cursor))); |
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}
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/*************************************************************
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Checks if the persistent cursor is on a user record. */
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UNIV_INLINE |
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ibool |
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btr_pcur_is_on_user_rec(
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/*====================*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in: mtr */ |
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{
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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if ((btr_pcur_is_before_first_on_page(cursor, mtr)) |
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|| (btr_pcur_is_after_last_on_page(cursor, mtr))) { |
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return(FALSE); |
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} |
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return(TRUE); |
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}
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/*************************************************************
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Checks if the persistent cursor is before the first user record in
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the index tree. */
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UNIV_INLINE |
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ibool |
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btr_pcur_is_before_first_in_tree(
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/*=============================*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in: mtr */ |
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{
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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if (btr_page_get_prev(btr_pcur_get_page(cursor), mtr) != FIL_NULL) { |
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return(FALSE); |
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} |
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return(page_cur_is_before_first(btr_pcur_get_page_cur(cursor))); |
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}
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/*************************************************************
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Checks if the persistent cursor is after the last user record in
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the index tree. */
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UNIV_INLINE |
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ibool |
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btr_pcur_is_after_last_in_tree(
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/*===========================*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in: mtr */ |
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{
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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if (btr_page_get_next(btr_pcur_get_page(cursor), mtr) != FIL_NULL) { |
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return(FALSE); |
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} |
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return(page_cur_is_after_last(btr_pcur_get_page_cur(cursor))); |
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}
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/*************************************************************
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Moves the persistent cursor to the next record on the same page. */
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UNIV_INLINE |
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void |
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btr_pcur_move_to_next_on_page(
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/*==========================*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in: mtr */ |
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{
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UT_NOT_USED(mtr); |
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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page_cur_move_to_next(btr_pcur_get_page_cur(cursor)); |
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cursor->old_stored = BTR_PCUR_OLD_NOT_STORED; |
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}
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268 |
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/*************************************************************
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Moves the persistent cursor to the previous record on the same page. */
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UNIV_INLINE |
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void |
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btr_pcur_move_to_prev_on_page(
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/*==========================*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in: mtr */ |
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{
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UT_NOT_USED(mtr); |
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ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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page_cur_move_to_prev(btr_pcur_get_page_cur(cursor)); |
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284 |
cursor->old_stored = BTR_PCUR_OLD_NOT_STORED; |
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}
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286 |
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/*************************************************************
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Moves the persistent cursor to the last record on the same page. */
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UNIV_INLINE |
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void |
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btr_pcur_move_to_last_on_page(
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/*==========================*/
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btr_pcur_t* cursor, /* in: persistent cursor */ |
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mtr_t* mtr) /* in: mtr */ |
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295 |
{
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UT_NOT_USED(mtr); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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298 |
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page_cur_set_after_last(buf_frame_align(btr_pcur_get_rec(cursor)), |
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btr_pcur_get_page_cur(cursor)); |
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301 |
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cursor->old_stored = BTR_PCUR_OLD_NOT_STORED; |
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}
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304 |
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/*************************************************************
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306 |
Moves the persistent cursor to the next user record in the tree. If no user
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records are left, the cursor ends up 'after last in tree'. */
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UNIV_INLINE |
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309 |
ibool |
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310 |
btr_pcur_move_to_next_user_rec(
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311 |
/*===========================*/
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312 |
/* out: TRUE if the cursor moved forward, |
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313 |
ending on a user record */
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314 |
btr_pcur_t* cursor, /* in: persistent cursor; NOTE that the |
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315 |
function may release the page latch */
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mtr_t* mtr) /* in: mtr */ |
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317 |
{
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318 |
ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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320 |
cursor->old_stored = BTR_PCUR_OLD_NOT_STORED; |
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loop: |
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322 |
if (btr_pcur_is_after_last_on_page(cursor, mtr)) { |
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323 |
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324 |
if (btr_pcur_is_after_last_in_tree(cursor, mtr)) { |
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325 |
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326 |
return(FALSE); |
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327 |
} |
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328 |
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329 |
btr_pcur_move_to_next_page(cursor, mtr); |
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330 |
} else { |
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331 |
btr_pcur_move_to_next_on_page(cursor, mtr); |
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332 |
} |
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333 |
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334 |
if (btr_pcur_is_on_user_rec(cursor, mtr)) { |
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335 |
||
336 |
return(TRUE); |
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337 |
} |
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338 |
||
339 |
goto loop; |
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340 |
}
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341 |
||
342 |
/*************************************************************
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343 |
Moves the persistent cursor to the next record in the tree. If no records are
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344 |
left, the cursor stays 'after last in tree'. */
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345 |
UNIV_INLINE |
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346 |
ibool |
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347 |
btr_pcur_move_to_next(
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348 |
/*==================*/
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349 |
/* out: TRUE if the cursor was not after last |
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350 |
in tree */
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351 |
btr_pcur_t* cursor, /* in: persistent cursor; NOTE that the |
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352 |
function may release the page latch */
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353 |
mtr_t* mtr) /* in: mtr */ |
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354 |
{
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355 |
ut_ad(cursor->pos_state == BTR_PCUR_IS_POSITIONED); |
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356 |
ut_ad(cursor->latch_mode != BTR_NO_LATCHES); |
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357 |
||
358 |
cursor->old_stored = BTR_PCUR_OLD_NOT_STORED; |
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359 |
||
360 |
if (btr_pcur_is_after_last_on_page(cursor, mtr)) { |
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361 |
||
362 |
if (btr_pcur_is_after_last_in_tree(cursor, mtr)) { |
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363 |
||
364 |
return(FALSE); |
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365 |
} |
|
366 |
||
367 |
btr_pcur_move_to_next_page(cursor, mtr); |
|
368 |
||
369 |
return(TRUE); |
|
370 |
} |
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371 |
||
372 |
btr_pcur_move_to_next_on_page(cursor, mtr); |
|
373 |
||
374 |
return(TRUE); |
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375 |
}
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376 |
||
377 |
/******************************************************************
|
|
378 |
Commits the pcur mtr and sets the pcur latch mode to BTR_NO_LATCHES,
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379 |
that is, the cursor becomes detached. If there have been modifications
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380 |
to the page where pcur is positioned, this can be used instead of
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381 |
btr_pcur_release_leaf. Function btr_pcur_store_position should be used
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382 |
before calling this, if restoration of cursor is wanted later. */
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383 |
UNIV_INLINE |
|
384 |
void |
|
385 |
btr_pcur_commit(
|
|
386 |
/*============*/
|
|
387 |
btr_pcur_t* pcur) /* in: persistent cursor */ |
|
388 |
{
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|
389 |
ut_a(pcur->pos_state == BTR_PCUR_IS_POSITIONED); |
|
390 |
||
391 |
pcur->latch_mode = BTR_NO_LATCHES; |
|
392 |
||
393 |
mtr_commit(pcur->mtr); |
|
394 |
||
395 |
pcur->pos_state = BTR_PCUR_WAS_POSITIONED; |
|
396 |
}
|
|
397 |
||
398 |
/******************************************************************
|
|
399 |
Differs from btr_pcur_commit in that we can specify the mtr to commit. */
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|
400 |
UNIV_INLINE |
|
401 |
void |
|
402 |
btr_pcur_commit_specify_mtr(
|
|
403 |
/*========================*/
|
|
404 |
btr_pcur_t* pcur, /* in: persistent cursor */ |
|
405 |
mtr_t* mtr) /* in: mtr to commit */ |
|
406 |
{
|
|
407 |
ut_a(pcur->pos_state == BTR_PCUR_IS_POSITIONED); |
|
408 |
||
409 |
pcur->latch_mode = BTR_NO_LATCHES; |
|
410 |
||
411 |
mtr_commit(mtr); |
|
412 |
||
413 |
pcur->pos_state = BTR_PCUR_WAS_POSITIONED; |
|
414 |
}
|
|
415 |
||
416 |
/******************************************************************
|
|
417 |
Sets the pcur latch mode to BTR_NO_LATCHES. */
|
|
418 |
UNIV_INLINE |
|
419 |
void |
|
420 |
btr_pcur_detach(
|
|
421 |
/*============*/
|
|
422 |
btr_pcur_t* pcur) /* in: persistent cursor */ |
|
423 |
{
|
|
424 |
ut_a(pcur->pos_state == BTR_PCUR_IS_POSITIONED); |
|
425 |
||
426 |
pcur->latch_mode = BTR_NO_LATCHES; |
|
427 |
||
428 |
pcur->pos_state = BTR_PCUR_WAS_POSITIONED; |
|
429 |
}
|
|
430 |
||
431 |
/******************************************************************
|
|
432 |
Tests if a cursor is detached: that is the latch mode is BTR_NO_LATCHES. */
|
|
433 |
UNIV_INLINE |
|
434 |
ibool |
|
435 |
btr_pcur_is_detached(
|
|
436 |
/*=================*/
|
|
437 |
/* out: TRUE if detached */ |
|
438 |
btr_pcur_t* pcur) /* in: persistent cursor */ |
|
439 |
{
|
|
440 |
if (pcur->latch_mode == BTR_NO_LATCHES) { |
|
441 |
||
442 |
return(TRUE); |
|
443 |
} |
|
444 |
||
445 |
return(FALSE); |
|
446 |
}
|
|
447 |
||
448 |
/******************************************************************
|
|
449 |
Sets the old_rec_buf field to NULL. */
|
|
450 |
UNIV_INLINE |
|
451 |
void |
|
452 |
btr_pcur_init(
|
|
453 |
/*==========*/
|
|
454 |
btr_pcur_t* pcur) /* in: persistent cursor */ |
|
455 |
{
|
|
456 |
pcur->old_stored = BTR_PCUR_OLD_NOT_STORED; |
|
457 |
pcur->old_rec_buf = NULL; |
|
458 |
pcur->old_rec = NULL; |
|
459 |
}
|
|
460 |
||
461 |
/******************************************************************
|
|
462 |
Initializes and opens a persistent cursor to an index tree. It should be
|
|
463 |
closed with btr_pcur_close. */
|
|
464 |
UNIV_INLINE |
|
465 |
void |
|
466 |
btr_pcur_open(
|
|
467 |
/*==========*/
|
|
468 |
dict_index_t* index, /* in: index */ |
|
469 |
dtuple_t* tuple, /* in: tuple on which search done */ |
|
470 |
ulint mode, /* in: PAGE_CUR_L, ...; |
|
471 |
NOTE that if the search is made using a unique
|
|
472 |
prefix of a record, mode should be
|
|
473 |
PAGE_CUR_LE, not PAGE_CUR_GE, as the latter
|
|
474 |
may end up on the previous page from the
|
|
475 |
record! */
|
|
476 |
ulint latch_mode,/* in: BTR_SEARCH_LEAF, ... */ |
|
477 |
btr_pcur_t* cursor, /* in: memory buffer for persistent cursor */ |
|
478 |
mtr_t* mtr) /* in: mtr */ |
|
479 |
{
|
|
480 |
btr_cur_t* btr_cursor; |
|
481 |
||
482 |
/* Initialize the cursor */ |
|
483 |
||
484 |
btr_pcur_init(cursor); |
|
485 |
||
486 |
cursor->latch_mode = latch_mode; |
|
487 |
cursor->search_mode = mode; |
|
488 |
||
489 |
/* Search with the tree cursor */ |
|
490 |
||
491 |
btr_cursor = btr_pcur_get_btr_cur(cursor); |
|
492 |
||
493 |
btr_cur_search_to_nth_level(index, 0, tuple, mode, latch_mode, |
|
494 |
btr_cursor, 0, mtr); |
|
495 |
cursor->pos_state = BTR_PCUR_IS_POSITIONED; |
|
496 |
||
497 |
cursor->trx_if_known = NULL; |
|
498 |
}
|
|
499 |
||
500 |
/******************************************************************
|
|
501 |
Opens an persistent cursor to an index tree without initializing the
|
|
502 |
cursor. */
|
|
503 |
UNIV_INLINE |
|
504 |
void |
|
505 |
btr_pcur_open_with_no_init(
|
|
506 |
/*=======================*/
|
|
507 |
dict_index_t* index, /* in: index */ |
|
508 |
dtuple_t* tuple, /* in: tuple on which search done */ |
|
509 |
ulint mode, /* in: PAGE_CUR_L, ...; |
|
510 |
NOTE that if the search is made using a unique
|
|
511 |
prefix of a record, mode should be
|
|
512 |
PAGE_CUR_LE, not PAGE_CUR_GE, as the latter
|
|
513 |
may end up on the previous page of the
|
|
514 |
record! */
|
|
515 |
ulint latch_mode,/* in: BTR_SEARCH_LEAF, ...; |
|
516 |
NOTE that if has_search_latch != 0 then
|
|
517 |
we maybe do not acquire a latch on the cursor
|
|
518 |
page, but assume that the caller uses his
|
|
519 |
btr search latch to protect the record! */
|
|
520 |
btr_pcur_t* cursor, /* in: memory buffer for persistent cursor */ |
|
521 |
ulint has_search_latch,/* in: latch mode the caller |
|
522 |
currently has on btr_search_latch:
|
|
523 |
RW_S_LATCH, or 0 */
|
|
524 |
mtr_t* mtr) /* in: mtr */ |
|
525 |
{
|
|
526 |
btr_cur_t* btr_cursor; |
|
527 |
||
528 |
cursor->latch_mode = latch_mode; |
|
529 |
cursor->search_mode = mode; |
|
530 |
||
531 |
/* Search with the tree cursor */ |
|
532 |
||
533 |
btr_cursor = btr_pcur_get_btr_cur(cursor); |
|
534 |
||
535 |
btr_cur_search_to_nth_level(index, 0, tuple, mode, latch_mode, |
|
536 |
btr_cursor, has_search_latch, mtr); |
|
537 |
cursor->pos_state = BTR_PCUR_IS_POSITIONED; |
|
538 |
||
539 |
cursor->old_stored = BTR_PCUR_OLD_NOT_STORED; |
|
540 |
||
541 |
cursor->trx_if_known = NULL; |
|
542 |
}
|
|
543 |
||
544 |
/*********************************************************************
|
|
545 |
Opens a persistent cursor at either end of an index. */
|
|
546 |
UNIV_INLINE |
|
547 |
void |
|
548 |
btr_pcur_open_at_index_side(
|
|
549 |
/*========================*/
|
|
550 |
ibool from_left, /* in: TRUE if open to the low end, |
|
551 |
FALSE if to the high end */
|
|
552 |
dict_index_t* index, /* in: index */ |
|
553 |
ulint latch_mode, /* in: latch mode */ |
|
554 |
btr_pcur_t* pcur, /* in: cursor */ |
|
555 |
ibool do_init, /* in: TRUE if should be initialized */ |
|
556 |
mtr_t* mtr) /* in: mtr */ |
|
557 |
{
|
|
558 |
pcur->latch_mode = latch_mode; |
|
559 |
||
560 |
if (from_left) { |
|
561 |
pcur->search_mode = PAGE_CUR_G; |
|
562 |
} else { |
|
563 |
pcur->search_mode = PAGE_CUR_L; |
|
564 |
} |
|
565 |
||
566 |
if (do_init) { |
|
567 |
btr_pcur_init(pcur); |
|
568 |
} |
|
569 |
||
570 |
btr_cur_open_at_index_side(from_left, index, latch_mode, |
|
571 |
btr_pcur_get_btr_cur(pcur), mtr); |
|
572 |
pcur->pos_state = BTR_PCUR_IS_POSITIONED; |
|
573 |
||
574 |
pcur->old_stored = BTR_PCUR_OLD_NOT_STORED; |
|
575 |
||
576 |
pcur->trx_if_known = NULL; |
|
577 |
}
|
|
578 |
||
579 |
/**************************************************************************
|
|
580 |
Positions a cursor at a randomly chosen position within a B-tree. */
|
|
581 |
UNIV_INLINE |
|
582 |
void |
|
583 |
btr_pcur_open_at_rnd_pos(
|
|
584 |
/*=====================*/
|
|
585 |
dict_index_t* index, /* in: index */ |
|
586 |
ulint latch_mode, /* in: BTR_SEARCH_LEAF, ... */ |
|
587 |
btr_pcur_t* cursor, /* in/out: B-tree pcur */ |
|
588 |
mtr_t* mtr) /* in: mtr */ |
|
589 |
{
|
|
590 |
/* Initialize the cursor */ |
|
591 |
||
592 |
cursor->latch_mode = latch_mode; |
|
593 |
cursor->search_mode = PAGE_CUR_G; |
|
594 |
||
595 |
btr_pcur_init(cursor); |
|
596 |
||
597 |
btr_cur_open_at_rnd_pos(index, latch_mode, |
|
598 |
btr_pcur_get_btr_cur(cursor), mtr); |
|
599 |
cursor->pos_state = BTR_PCUR_IS_POSITIONED; |
|
600 |
cursor->old_stored = BTR_PCUR_OLD_NOT_STORED; |
|
601 |
||
602 |
cursor->trx_if_known = NULL; |
|
603 |
}
|
|
604 |
||
605 |
/******************************************************************
|
|
606 |
Frees the possible memory heap of a persistent cursor and sets the latch
|
|
607 |
mode of the persistent cursor to BTR_NO_LATCHES. */
|
|
608 |
UNIV_INLINE |
|
609 |
void |
|
610 |
btr_pcur_close(
|
|
611 |
/*===========*/
|
|
612 |
btr_pcur_t* cursor) /* in: persistent cursor */ |
|
613 |
{
|
|
614 |
if (cursor->old_rec_buf != NULL) { |
|
615 |
||
616 |
mem_free(cursor->old_rec_buf); |
|
617 |
||
618 |
cursor->old_rec = NULL; |
|
619 |
cursor->old_rec_buf = NULL; |
|
620 |
} |
|
621 |
||
622 |
cursor->btr_cur.page_cur.rec = NULL; |
|
623 |
cursor->old_rec = NULL; |
|
624 |
cursor->old_stored = BTR_PCUR_OLD_NOT_STORED; |
|
625 |
||
626 |
cursor->latch_mode = BTR_NO_LATCHES; |
|
627 |
cursor->pos_state = BTR_PCUR_NOT_POSITIONED; |
|
628 |
||
629 |
cursor->trx_if_known = NULL; |
|
630 |
}
|