MDEV-27957 Select from view with subselect fails with lost connection
The problem is in getting select number of excluded EXPLAIN-node,
because on excluding links in exclued unit removed.
IMHO it is simplier to get the number in other way and let the EXPLAIN
proceed then fix EXPLAIN. (the other solution is to do not create nodes
for excluded units)
MDEV-28131 Unexpected warning while selecting from information_schema.processlist
Problem:
DECIMAL columns in I_S must be explicitly set of some value.
I_S columns do not have `DEFAULT 0` (after MDEV-18918), so during
restore_record() their record fragments pointed by Field::ptr are
initialized to zero bytes 0x00.
But an array of 0x00's is not a valid binary DECIMAL value.
So val_decimal() called for such Field_new_decimal generated a warning
when seeing a wrong binary encoded DECIMAL value in the record.
Fix:
Explicitly setting INFORMATION_SCHEMA.PROCESSLIST.PROGRESS
to the decimal value of 0 if no progress information is available.
MDEV-26009 Server crash when calling twice procedure using FOR-loop
The problem was that instructions sp_instr_cursor_copy_struct and
sp_instr_copen uses the same lex, adding and removing "tail" of
prelocked tables and forgetting that tail of all tables is kept in
LEX::query_tables_last. If the LEX used only by one instruction
or the query do not have prelocked tables it is not important.
But to work correctly in all cases LEX::query_tables_last should
be reset to make new tables added in the correct list (after last
table in the LEX instead after last table of the prelocking "tail"
which was cut).
MDEV-23915 ER_KILL_DENIED_ERROR not passed a thread id (part 2)
Per Marko's comment in JIRA, sql_kill is passing the thread id
as long long. We change the format of the error messages to match,
and cast the thread id to long long in sql_kill_user.
MDEV-23915 ER_KILL_DENIED_ERROR not passed a thread id
The 10.5 test error main.grant_kill showed up a incorrect
thread id on a big endian architecture.
The cause of this is the sql_kill_user function assumed the
error was ER_OUT_OF_RESOURCES, when the the actual error was
ER_KILL_DENIED_ERROR. ER_KILL_DENIED_ERROR as an error message
requires a thread id to be passed as unsigned long, however a
user/host was passed.
ER_OUT_OF_RESOURCES doesn't even take a user/host, despite
the optimistic comment. We remove this being passed as an
argument to the function so that when MDEV-21978 is implemented
one less compiler format warning is generated (which would
have caught this error sooner).
