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Change SEL_ARG::MAX_SEL_ARGS to a user defined variable optimizer_max_sel_args

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This allows a user to to change the default value of MAX_SEL_ARGS (16000)
in the rare case where they neeed more generated SEL_ARGS (as part of
the range optimizer)
This commit is contained in:
Monty
2023-09-27 01:29:22 +03:00
parent 4e9322e2ff
commit d4347177c7
9 changed files with 303 additions and 242 deletions
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5
mysql-test/main/mysqld--help.result
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@@ -716,6 +716,10 @@ The following specify which files/extra groups are read (specified before remain
--optimizer-max-sel-arg-weight=#
The maximum weight of the SEL_ARG graph. Set to 0 for no
limit
--optimizer-max-sel-args=#
The maximum number of SEL_ARG objects created when
optimizing a range. If more objects would be needed, the
range will not be used by the optimizer.
--optimizer-prune-level=#
Controls the heuristic(s) applied during query
optimization to prune less-promising partial plans from
@@ -1682,6 +1686,7 @@ old-mode UTF8_IS_UTF8MB3
old-passwords FALSE
old-style-user-limits FALSE
optimizer-max-sel-arg-weight 32000
optimizer-max-sel-args 16000
optimizer-prune-level 1
optimizer-search-depth 62
optimizer-selectivity-sampling-limit 100