protected int countKey(Field encoded) {
		try {
			return store.table.getMatchingRecordCount(encoded, columnIndex);
		}
		catch (IOException e) {
			store.dbError(e);
			return 0;
		}
	}
Check if the given object is in the index

<p>
Except for sub-ranged indexes, this is equivalent to checking if the object is in the store.
For a sub-ranged index, the value of its indexed field must fall within the restricted range.

@param value the object
@return true if it appears in this (sub-ranged) index.
Ghidra/Debug/ProposedUtils/src/main/java/ghidra/util/database/DBCachedObjectIndex.java