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Changes between Initial Version and Version 2 of Ticket #33905

initial	v2
29	29	This is because Postgres' lower() and upper() functions are overloaded to accept either text or range types - the former for converting case with the latter retrieving the lower/upper bounds of the range.
30	30
31		When an expression LOWER(NULL) is encountered Postgres assumes the resulting expression is text:
	31	When an expression LOWER(NULL) is encountered without an underlying column Postgres assumes the resulting expression is text:
32	32
33	33	{{{