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Fixed a use of non-initialised variable, cannot use NULL flags if RANGE == NO_MAX_RANGE or NO_MIN_RANGE, so need to check NULL flags after checking the RANGE isn't NO_MAX_RANGE
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@ -7382,7 +7382,7 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info,
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{
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part_iter->ret_null_part= part_iter->ret_null_part_orig= TRUE;
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part_iter->part_nums.start= part_iter->part_nums.cur= 0;
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if (*max_value && !(flags & NO_MAX_RANGE))
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if (!(flags & NO_MAX_RANGE) && *max_value)
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{
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/* The right bound is X <= NULL, i.e. it is a "X IS NULL" interval */
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part_iter->part_nums.end= 0;
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