MDEV-21892: Assertion ...row_get_rec_trx_id... failed on SELECT

btr_cur_upd_rec_in_place(): Invoke page_zip_rec_set_deleted()
for ROW_FORMAT=COMPRESSED pages, so that the change will be
written to the redo log.

This part of crash recovery was broken in
commit 08ba3887 (MDEV-12353).

mysql-test/suite/innodb_zip/r/recover.result

+FLUSH TABLES;
+#
+# MDEV-21892 Assertion 'index != clust_index || row_get_rec_trx_id()'
+#
+connect  con1,localhost,root;
+CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
+INSERT INTO t1 VALUES (1),(2);
+BEGIN;
+UPDATE t1 SET pk=1;
+ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
+connection default;
 #
 # MDEV-12720 recovery fails with "Generic error"
 # for ROW_FORMAT=compressed
@@ -12,6 +23,12 @@ insert into a select null, uuid() from a a, a b, a c;
 SET GLOBAL innodb_flush_log_at_trx_commit=1;
 COMMIT;
 # restart
+disconnect con1;
+SELECT * FROM t1;
+pk
+1
+2
+DROP TABLE t1;
 SELECT COUNT(*) from a;
 COUNT(*)
 1010

mysql-test/suite/innodb_zip/t/recover.test

 --source include/innodb_page_size_small.inc
 --source include/not_embedded.inc
 
---disable_query_log
 # This test kills the server, which could corrupt some mysql.* tables
 # that are not created with ENGINE=InnoDB.
 # Flush any non-InnoDB tables to prevent that from happening.
 FLUSH TABLES;
---enable_query_log
+
+--echo #
+--echo # MDEV-21892 Assertion 'index != clust_index || row_get_rec_trx_id()'
+--echo #
+connect (con1,localhost,root);
+CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
+INSERT INTO t1 VALUES (1),(2);
+BEGIN;
+--error ER_DUP_ENTRY
+UPDATE t1 SET pk=1;
+connection default;
 
 --echo #
 --echo # MDEV-12720 recovery fails with "Generic error"
@@ -25,6 +34,9 @@ COMMIT;
 
 --let $shutdown_timeout=0
 --source include/restart_mysqld.inc
+disconnect con1;
 
+SELECT * FROM t1;
+DROP TABLE t1;
 SELECT COUNT(*) from a;
 DROP TABLE a;

storage/innobase/btr/btr0cur.cc

@@ -4110,16 +4110,25 @@ void btr_cur_upd_rec_in_place(rec_t *rec, const dict_index_t *index,
 	}
 #endif /* UNIV_DEBUG */
 
-	byte* info_bits = &rec[rec_offs_comp(offsets)
-			       ? -REC_NEW_INFO_BITS
-			       : -REC_OLD_INFO_BITS];
-	compile_time_assert(REC_INFO_BITS_SHIFT == 0);
-	if ((*info_bits & REC_INFO_BITS_MASK) == update->info_bits) {
-	} else if (UNIV_LIKELY_NULL(block->page.zip.data)) {
+	static_assert(REC_INFO_BITS_SHIFT == 0, "compatibility");
+	if (UNIV_LIKELY_NULL(block->page.zip.data)) {
+		ut_ad(rec_offs_comp(offsets));
+		byte* info_bits = &rec[-REC_NEW_INFO_BITS];
+		const bool flip_del_mark = (*info_bits ^ update->info_bits)
+			& REC_INFO_DELETED_FLAG;
 		*info_bits &= ~REC_INFO_BITS_MASK;
 		*info_bits |= update->info_bits;
+
+		if (flip_del_mark) {
+			page_zip_rec_set_deleted(block, rec, update->info_bits
+						 & REC_INFO_DELETED_FLAG, mtr);
+		}
 	} else {
-		mtr->write<1>(*block, info_bits,
+		byte* info_bits = &rec[rec_offs_comp(offsets)
+				       ? -REC_NEW_INFO_BITS
+				       : -REC_OLD_INFO_BITS];
+
+		mtr->write<1,mtr_t::OPT>(*block, info_bits,
 			      (*info_bits & ~REC_INFO_BITS_MASK)
 			      | update->info_bits);
 	}