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From: Tom Lane <[email protected]>
To: Ayush Tiwari <[email protected]>
Cc: 王跃林 <[email protected]>
Cc: pgsql-bugs <[email protected]>
Cc: 3764353996 <[email protected]>
Subject: Re: Fw:Re: Fw: gbt_var_consistent in contrib/btree_gist/btree_utils_var.c has internal-node type confusion on the <> strategy, bypassing exclusion constraints
Date: Fri, 03 Jul 2026 09:50:30 -0400
Message-ID: <[email protected]> (raw)
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Ayush Tiwari <[email protected]> writes:
> Are you planning on including it in the backpatch or to keep the
> optimization just part of master, and the bug fix backpatched?

I was intending to back-patch only the bug fixes, ie 0002 and 0003.
If we make additional cosmetic changes to gbt_var_consistent(),
I could go either way on whether to include those in the back-patch.

BTW, thinking some more about 0004: isn't it pointless to check
gbt_var_node_pf_match in the gbt_var_consistent cases that
only constrain the lower bound, that is LessEqual and Less?  In

                retval = tinfo->f_cmp(query, key->lower, collation, flinfo) >= 0
                    || gbt_var_node_pf_match(key, query, tinfo);

if query >= key->lower then we must search the node, but if it
isn't then the prefix match against upper can't succeed either.

			regards, tom lane






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