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5992
Assign each nested join structure (except "confluent" ones - those that
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@param join Join being processed
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@param join_list List of tables
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6001
This function is called after simplify_joins(), when there are no
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redundant nested joins, #non_confluent_nested_joins <= #tables_in_join so
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6008
static uint32_t build_bitmap_for_nested_joins(List<TableList> *join_list, uint32_t first_unused)