Issues

PS 8.0 memory engine row format issue

Regression: ER_TABLE_CANT_HANDLE_BLOB when TEXT col is described before PK col(s).

Switching between JSON and BLOB/TEXT columns will increase key_block_size; unclear table full condition

JSON column prevents converting back MEMORY engine to İnnoDB

key_block_size implicitly changed with MEMORY engine(TEXT/BLOB/JSON) columns

LP #1536469: Assertion `length == 0 || json_binary::parse_binary(ptr, length).is_valid()' failed in sql/field.cc:8975: type_conversion_status Field_json::store_binary(const char*, size_t)

LP #1710939: Run multiple INSERT values (data),(data)...(data) allocates too much memory

LP #1325858: INSERT DELAYED INTO heap TABLE in Field_blob::cmp_binary

The Memory storage engine detected an incorrect "is full" condition when the space contained reusable memory chunks that could be reused.

LP #1190983: the improved memory engine documentation doesn't mention that temp tables don't use this optimization completely

LP #1731483: MEMORY storage engine incorrectly allows BLOB columns before indexed columns

LP #1713700: Assertion `inited == INDEX' failed.

LP #1233131: Valgrind: Conditional jump or move depends on uninitialised value(s) at hp_mask by check_one_key

LP #1225827: handle_fatal_signal (sig=11) in hp_rec_hashnr on various queries