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Original file line number	Diff line number	Diff line change
`@@ -394,10 +394,11 @@ static TypeInfo TypeInfo_varbit = {true, leftmostvalue_varbit, bitcmp};`
`394`	`394`	`GIN_SUPPORT(varbit)`
`395`	`395`
`396`	`396`	`/*`
`397`		`- * Numeric type hasn't applicable left-most value, so NULL`
`398`		`- * is used for that. NULL will never be an argument for a C-level`
`399`		`- * numeric function except gin_numeric_cmp and it will not be stored`
`400`		`- * somewhere and it could not be returned in any user SQL query.`
	`397`	`+ * Numeric type hasn't a real left-most value, so we use PointerGetDatum(NULL)`
	`398`	`+ * (not a SQL NULL) to represent that. We can get away with that because`
	`399`	`+ * the value returned by our leftmostvalue function will never be stored in`
	`400`	`+ * the index nor passed to anything except our compare and prefix-comparison`
	`401`	`+ * functions. The same trick could be used for other pass-by-reference types.`
`401`	`402`	`*/`
`402`	`403`
`403`	`404`	`#defineNUMERIC_IS_LEFTMOST(x)((x) == NULL)`

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