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Changes between Initial Version and Version 1 of Ticket #29697, comment 3

initial	v1
1		Hello. I guess the problem is in trim start function. I want to change this code like above. What do you think?
	1	Hello. I guess the problem is in Query.trim_start function. if a table is a reference between two related tables and its columns are not used, its amount of alias_refcount is updated by zero. In this case, I checked "query.where.children[0].children[0].rhs.alias_refcount" and result-> {'U0': 1, 'U1': 0, 'U2': 1}. Because of that U1 wasn't included in join query.
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	3	I want to change this code like below. What do you think?
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