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From:Mattias Jonsson Date:January 10 2012 4:53pm
Subject:bzr push into mysql-trunk branch (mattias.jonsson:3720) WL#4443
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 3720 Mattias Jonsson	2012-01-10 [merge]
      WL#4443: Remove scalability problem with many lock's
      and external lock's on partitioned tables with many partitions
      
      Merge of completed worklog with updated mysql-trunk and
      13008220 and 11761652.
      
      Replaced calls to open_and_lock_tables with calls to
      new functions open_query_tables and lock_query_tables
      to be able to prepare use of tables including pruning of
      partitions before locking them.
      
      open_query_tables and lock_query_tables only takes
      thd as argument and store its state in thd->lex
      (Query_tables_list).
      
      Implemented pruning of INSERTs by setting all partitions
      of all inserted rows to be locked before locking.
      
      Added lock pruning to EXCHANGE PARTITION and
      TRUNCATE PARTITION.
      
      Disabled some calls which would have evaluated
      subqueries during prepare.
      
      CREATE VIEW no longer lock the tables except for MDL.
      
      Added pruning in JOIN::prepare to be able to prune locks
      for constant conditions.

    added:
      mysql-test/r/partition_locking.result
      mysql-test/t/partition_locking.test
    modified:
      mysql-test/include/commit.inc
      mysql-test/r/commit_1innodb.result
      mysql-test/r/explain.result
      mysql-test/r/grant_cache_no_prot.result
      mysql-test/r/innodb_explain_non_select_none.result
      mysql-test/r/myisam_explain_non_select_none.result
      mysql-test/r/partition_binlog.result
      mysql-test/r/partition_datatype.result
      mysql-test/r/partition_error.result
      mysql-test/r/partition_explicit_prune.result
      mysql-test/r/partition_pruning.result
      mysql-test/r/partition_truncate.result
      mysql-test/r/type_date.result
      mysql-test/suite/binlog/r/binlog_unsafe.result
      mysql-test/suite/opt_trace/r/bugs_no_prot_none.result
      mysql-test/suite/opt_trace/r/bugs_ps_prot_none.result
      mysql-test/suite/parts/inc/partition-dml-1-9.inc
      mysql-test/suite/parts/r/partition-dml-1-9-innodb.result
      mysql-test/suite/parts/r/partition-dml-1-9-myisam.result
      mysql-test/suite/perfschema/r/stage_mdl_function.result
      mysql-test/t/explain.test
      mysql-test/t/partition_binlog.test
      mysql-test/t/partition_explicit_prune.test
      mysql-test/t/partition_pruning.test
      mysql-test/t/partition_truncate.test
      mysql-test/t/type_date.test
      sql/field_conv.cc
      sql/ha_partition.cc
      sql/ha_partition.h
      sql/handler.cc
      sql/handler.h
      sql/item_cmpfunc.cc
      sql/item_row.cc
      sql/item_strfunc.cc
      sql/log_event.cc
      sql/opt_explain.cc
      sql/opt_range.cc
      sql/opt_range.h
      sql/partition_info.cc
      sql/partition_info.h
      sql/share/errmsg-utf8.txt
      sql/sp_head.cc
      sql/sql_acl.cc
      sql/sql_base.cc
      sql/sql_base.h
      sql/sql_cache.h
      sql/sql_delete.cc
      sql/sql_executor.cc
      sql/sql_insert.cc
      sql/sql_join_buffer.cc
      sql/sql_lex.cc
      sql/sql_lex.h
      sql/sql_load.cc
      sql/sql_optimizer.cc
      sql/sql_parse.cc
      sql/sql_partition.cc
      sql/sql_partition_admin.cc
      sql/sql_prepare.cc
      sql/sql_resolver.cc
      sql/sql_select.cc
      sql/sql_select.h
      sql/sql_union.cc
      sql/sql_update.cc
      sql/sql_view.cc

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bzr push into mysql-trunk branch (mattias.jonsson:3720) WL#4443Mattias Jonsson10 Jan