MDEV-24797 Column Compression - ERROR 1265 (01000): Data truncated for column

Fix issue was earlier fixed by MDEV-31724. Only adding MTR tests.

mysql-test/main/column_compression.result

@@ -2908,5 +2908,16 @@ DROP TABLE t1;
 SET @@column_compression_threshold=DEFAULT;
 DROP FUNCTION f1;
 #
+# MDEV-24797 Column Compression - ERROR 1265 (01000): Data truncated for column
+#
+CREATE TABLE t1 (a VARCHAR(500) COMPRESSED CHARACTER SET utf8mb3) ENGINE=MyISAM;
+INSERT INTO t1 SET a=REPEAT('x',127);
+ALTER TABLE t1 FORCE, ALGORITHM=COPY;
+DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(500) COMPRESSED CHARACTER SET utf8mb3) ENGINE=InnoDB;
+INSERT INTO t1 SET a=REPEAT('x',127);
+ALTER TABLE t1 FORCE, ALGORITHM=COPY;
+DROP TABLE t1;
+#
 # End of 10.4 tests
 #

mysql-test/main/column_compression.test

@@ -438,6 +438,21 @@ SET @@column_compression_threshold=DEFAULT;
 
 DROP FUNCTION f1;
 
+--echo #
+--echo # MDEV-24797 Column Compression - ERROR 1265 (01000): Data truncated for column
+--echo #
+
+CREATE TABLE t1 (a VARCHAR(500) COMPRESSED CHARACTER SET utf8mb3) ENGINE=MyISAM;
+INSERT INTO t1 SET a=REPEAT('x',127);
+ALTER TABLE t1 FORCE, ALGORITHM=COPY;
+DROP TABLE t1;
+
+CREATE TABLE t1 (a VARCHAR(500) COMPRESSED CHARACTER SET utf8mb3) ENGINE=InnoDB;
+INSERT INTO t1 SET a=REPEAT('x',127);
+ALTER TABLE t1 FORCE, ALGORITHM=COPY;
+DROP TABLE t1;
+
+
 --echo #
 --echo # End of 10.4 tests
 --echo #