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Merge 10.6 into 10.11
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@ -736,13 +736,17 @@ The following specify which files/extra groups are read (specified before remain
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max_connections*5 or max_connections + table_cache*2
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(whichever is larger) number of file descriptors
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(Automatically configured unless set explicitly)
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--optimizer-adjust-secondary-key-costs=#
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0 = No changes. 1 = Update secondary key costs for ranges
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to be at least 5x of clustered primary key costs. 2 =
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Remove 'max_seek optimization' for secondary keys and
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slight adjustment of filter cost. This option will be
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deleted in MariaDB 11.0 as it is not needed with the new
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11.0 optimizer.
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--optimizer-adjust-secondary-key-costs=name
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A bit field with the following values:
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adjust_secondary_key_cost = Update secondary key costs
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for ranges to be at least 5x of clustered primary key
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costs. disable_max_seek = Disable 'max_seek optimization'
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for secondary keys and slight adjustment of filter cost.
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disable_forced_index_in_group_by = Disable automatic
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forced index in GROUP BY. This variable will be deleted
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in MariaDB 11.0 as it is not needed with the new 11.0
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optimizer.
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Use 'ALL' to set all combinations.
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--optimizer-extra-pruning-depth=#
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If the optimizer needs to enumerate join prefix of this
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size or larger, then it will try aggressively prune away
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@ -1732,7 +1736,7 @@ old-alter-table DEFAULT
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old-mode UTF8_IS_UTF8MB3
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old-passwords FALSE
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old-style-user-limits FALSE
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optimizer-adjust-secondary-key-costs 0
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optimizer-adjust-secondary-key-costs
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optimizer-extra-pruning-depth 8
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optimizer-max-sel-arg-weight 32000
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optimizer-max-sel-args 16000
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