In BufTagGetForkNum, cast to the correct type.

robertmhaas · robertmhaas · commit 0aaa7cf6989e · 2022-09-27T16:15:57.000-04:00
Another defect in 05d4cbf. Per CI, via Justin Pryzby. Discussion: http://postgr.es/m/20220927200712.GH6256@telsasoft.com
diff --git a/src/include/storage/buf_internals.h b/src/include/storage/buf_internals.h
@@ -137,7 +137,7 @@ BufTagGetForkNum(const BufferTag *tag)
 	StaticAssertStmt(MAX_FORKNUM <= INT8_MAX,
 					 "MAX_FORKNUM can't be greater than INT8_MAX");
 
-	ret = (int8) (tag->relForkDetails[0] >> BUFTAG_RELNUM_HIGH_BITS);
+	ret = (ForkNumber) (tag->relForkDetails[0] >> BUFTAG_RELNUM_HIGH_BITS);
 	return ret;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -137,7 +137,7 @@ BufTagGetForkNum(const BufferTag *tag)`
`137`	`137`	`StaticAssertStmt(MAX_FORKNUM <= INT8_MAX,`
`138`	`138`	`"MAX_FORKNUM can't be greater than INT8_MAX");`
`139`	`139`
`140`		`- ret = (int8) (tag->relForkDetails[0] >> BUFTAG_RELNUM_HIGH_BITS);`
	`140`	`+ ret = (ForkNumber) (tag->relForkDetails[0] >> BUFTAG_RELNUM_HIGH_BITS);`
`141`	`141`	`return ret;`
`142`	`142`	`}`
`143`	`143`