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c22ecc6562
These resulted in wrong answers if the relabeled argument could be matched
to an index column, as shown in bug #14504 from Evgeniy Kozlov. We might
be able to resurrect these optimizations by adjusting the planner's
treatment of RelabelType, or by adjusting btree's rules for selecting
comparison functions, but either solution will take careful analysis
and does not sound like a fit candidate for backpatching.
I left the catalog infrastructure in place and just reduced the transform
functions to always-return-NULL. This would be necessary anyway in the
back branches, and it doesn't seem important to be more invasive in HEAD.
Bug introduced by commit
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| foreign | ||
| lib | ||
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| main | ||
| nodes | ||
| optimizer | ||
| parser | ||
| po | ||
| port | ||
| postmaster | ||
| regex | ||
| replication | ||
| rewrite | ||
| snowball | ||
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