Hi.
Back in 9.6 dev-cycle Teodor (from PostgresPro) posted a patch providing
indexed OR-clauses: https://commitfest.postgresql.org/8/454/
Sadly it didn't make it to 9.6, and wasn't re-submitted for the 10 dev-cycle.
@Teodor; Do you have plans to submit a patch for PG-11?
And, have you made any progress making it work for btree?
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