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  • Committer: Laurynas Biveinis
  • Date: 2013-09-06 13:24:59 UTC
  • mfrom: (558.8.3 5.5)
  • Revision ID: laurynas.biveinis@percona.com-20130906132459-jfaquw8dbwluzbsl
Merge lp:~akopytov/percona-server/ahi-fixes-5.5

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Percona-Server/storage/innobase/include/btr0types.h
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#ifndef UNIV_HOTBACKUP
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/** @brief The latch protecting the adaptive search system
 
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/** @brief The array of latches protecting the adaptive search partitions
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This latch protects the
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(1) hash index;
 
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These latches protect the
 
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(1) hash index from the corresponding AHI partition;
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(2) columns of a record to which we have a pointer in the hash index;
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but does NOT protect:
 
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but do NOT protect:
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(3) next record offset field in a record;
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(4) next or previous records on the same page.
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Bear in mind (3) and (4) when using the hash index.
 
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Bear in mind (3) and (4) when using the hash indexes.
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*/
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//extern rw_lock_t*     btr_search_latch_temp;
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extern rw_lock_t**      btr_search_latch_part;
 
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extern rw_lock_t*       btr_search_latch_arr;
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#endif /* UNIV_HOTBACKUP */
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