when the expanded column value is null or void array.
- Adding the FullArray option to JSON tables.
- Skipping expanded JSON lines when the expanded column value is null.
  modified:   storage/connect/connect.cc
  modified:   storage/connect/tabdos.h
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabjson.h

  modified:   storage/connect/ha_connect.cc

  modified:   storage/connect/CMakeLists.txt
  modified:   storage/connect/cmgoconn.cpp
  modified:   storage/connect/ha_connect.cc

- Add FORCE to the connect_type_conv enum values
  This will translate binary values to TYPE_STRING
  modified:   storage/connect/checklvl.h
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/odbconn.cpp

- Change the connect_xtrace variable to from int to set
  modified:   storage/connect/array.cpp
  modified:   storage/connect/blkfil.cpp
  modified:   storage/connect/block.h
  modified:   storage/connect/cmgoconn.cpp
  modified:   storage/connect/colblk.cpp
  modified:   storage/connect/connect.cc
  modified:   storage/connect/filamap.cpp
  modified:   storage/connect/filamdbf.cpp
  modified:   storage/connect/filamfix.cpp
  modified:   storage/connect/filamgz.cpp
  modified:   storage/connect/filamtxt.cpp
  modified:   storage/connect/filamvct.cpp
  modified:   storage/connect/filamzip.cpp
  modified:   storage/connect/filter.cpp
  modified:   storage/connect/global.h
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/inihandl.cpp
  modified:   storage/connect/javaconn.cpp
  modified:   storage/connect/jdbconn.cpp
  modified:   storage/connect/jmgfam.cpp
  modified:   storage/connect/jmgoconn.cpp
  modified:   storage/connect/json.cpp
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/libdoc.cpp
  modified:   storage/connect/mongo.cpp
  modified:   storage/connect/mycat.cc
  modified:   storage/connect/myconn.cpp
  modified:   storage/connect/odbconn.cpp
  modified:   storage/connect/plgdbutl.cpp
  modified:   storage/connect/plugutil.cpp
  modified:   storage/connect/reldef.cpp
  modified:   storage/connect/tabcol.cpp
  modified:   storage/connect/tabdos.cpp
  modified:   storage/connect/tabext.cpp
  modified:   storage/connect/tabfix.cpp
  modified:   storage/connect/tabfmt.cpp
  modified:   storage/connect/tabjdbc.cpp
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/table.cpp
  modified:   storage/connect/tabmul.cpp
  modified:   storage/connect/tabmysql.cpp
  modified:   storage/connect/tabodbc.cpp
  modified:   storage/connect/tabpivot.cpp
  modified:   storage/connect/tabsys.cpp
  modified:   storage/connect/tabtbl.cpp
  modified:   storage/connect/tabutil.cpp
  modified:   storage/connect/tabvct.cpp
  modified:   storage/connect/tabwmi.cpp
  modified:   storage/connect/tabxml.cpp
  modified:   storage/connect/user_connect.cc
  modified:   storage/connect/valblk.cpp
  modified:   storage/connect/value.cpp
  modified:   storage/connect/xindex.cpp

- Restore connect_enable_mongo variable (but undocumented)
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/mycat.cc
  modified:   storage/connect/mysql-test/connect/r/json_java_2.result
  modified:   storage/connect/mysql-test/connect/r/json_java_3.result
  modified:   storage/connect/mysql-test/connect/r/json_mongo_c.result
  modified:   storage/connect/mysql-test/connect/r/mongo_c.result
  modified:   storage/connect/mysql-test/connect/r/mongo_java_2.result
  modified:   storage/connect/mysql-test/connect/r/mongo_java_3.result
  modified:   storage/connect/mysql-test/connect/r/tbl_thread.result
  modified:   storage/connect/mysql-test/connect/t/mongo.inc
  modified:   storage/connect/mysql-test/connect/t/mongo_test.inc
  modified:   storage/connect/mysql-test/connect/t/tbl_thread.test

 This is done by removing the tbl table type THREAD option
 that causes a multiple of sporadic bugs.
 This may be temporary depending on whether a real fix is found.
  modified:   storage/connect/mysql-test/connect/disabled.def
  modified:   storage/connect/tabtbl.cpp
  modified:   storage/connect/tabtbl.h

  the WHERE clause have single quote.
  modified:   storage/connect/ha_connect.cc

- Use Windows VirtualAlloc and VirtualFree for the Sarea workspace
  modified:   storage/connect/global.h
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/plgdbutl.cpp
  modified:   storage/connect/plugutil.cpp
  modified:   storage/connect/user_connect.cc

- Change inihandl from c to c++.
  Because it now includes global.h that contains a bool function definition
  that make compile to fail on Linux.
  modified:   storage/connect/CMakeLists.txt
  removed:    storage/connect/inihandl.c
  added:      storage/connect/inihandl.cpp

- Fix MDEV-13860 CONNECT engine does not build with JDBC without ODBC.
  By including Sergei's patch in connect_assisted_discovery.
  modified:   storage/connect/ha_connect.cc

  modified:   storage/connect/ha_connect.cc

- Include MONGO in all Java enabled distributions
  Mongo will be enabled only for 10.2 and 10.3
  modified:   storage/connect/CMakeLists.txt

- Change JDBC_SUPPORT to JAVA_SUPPORT which also replaces MONGO_SUPPORT
  MONGO_SUPPORT is now just used to enable the MONGO table type
  modified:   storage/connect/filter.cpp
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/ha_connect.h
  modified:   storage/connect/mongo.cpp
  modified:   storage/connect/mycat.cc
  modified:   storage/connect/plgdbutl.cpp
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabjson.h

- Move MakeSelector function from FILTER to mongo.cpp
  modified:   storage/connect/filter.cpp
  modified:   storage/connect/filter.h
  modified:   storage/connect/cmgoconn.cpp
  modified:   storage/connect/jmgoconn.cpp
  modified:   storage/connect/mongo.cpp

- Do mongo_init only on first use of the MongoDB C Driver
  This will permit to delay load the mongo lib on Windows
  modified:   storage/connect/cmgoconn.cpp
  modified:   storage/connect/cmgoconn.h
  modified:   storage/connect/ha_connect.cc

- Replace NEW_VAR by a test on MYSQL_VERSION_ID
  modified:   storage/connect/ha_connect.cc

- Suppress enable_mongo session variable
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/mycat.cc

- Make some function headers identical in .h and .cc file
  (replacing const char* by PCSZ)
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/ha_connect.h

- Change a parameter type from uchar* to const uchar*
  (for ScanRecord and CheckRecord)
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/ha_connect.h

- Changes on LIKE and NOT LIKE does not fix a bug yet
  modified:   storage/connect/ha_connect.cc

- Suppress PIVOT_SUPPORT (PIVOT type is unconditionnal)
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/mycat.cc

- Change the strz function from inline to static
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/ha_connect.h

- export the JavaConn class and the MgoColumns and IsNum functions
  modified:   storage/connect/javaconn.h
  modified:   storage/connect/json.h
  modified:   storage/connect/mongo.h

- Fix MDEV-13924
  modified:   storage/connect/jdbconn.cpp

- Make a temporary fix for the compiler bug in CalculateArray
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/tabjson.cpp

- Typo
  modified:   storage/connect/jdbccat.h
  modified:   storage/connect/reldef.h
  modified:   storage/connect/tabext.h
  modified:   storage/connect/tabjmg.cpp
  modified:   storage/connect/tabxml.h
  modified:   storage/connect/valblk.h
  modified:   storage/connect/value.h
  modified:   storage/connect/xtable.h

- Fix a bug in MONGO tests by changing 'MONGO' to $TYPE
  modified:   storage/connect/mysql-test/connect/t/mongo_test.inc

- Record test results to reflect all changes
  modified:   storage/connect/mysql-test/connect/r/json_java_2.result
  modified:   storage/connect/mysql-test/connect/r/json_java_3.result
  modified:   storage/connect/mysql-test/connect/r/json_mongo_c.result
  modified:   storage/connect/mysql-test/connect/r/mongo_c.result
  modified:   storage/connect/mysql-test/connect/r/mongo_java_2.result
  modified:   storage/connect/mysql-test/connect/r/mongo_java_3.result

  modified:   storage/connect/ha_connect.cc

- Regard columns with binary charset as string (was binary)
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/tabmysql.cpp
  modified:   storage/connect/tabutil.cpp

- Support length 0 for CHAR and VARCHAR
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/reldef.cpp
  modified:   storage/connect/value.cpp

- Add ACCEPT option for void columns in discovery
  modified:   storage/connect/tabjson.cpp

- Update some tests because of above change
  modified:   storage/connect/mysql-test/connect/r/json_java_2.result
  modified:   storage/connect/mysql-test/connect/r/json_java_3.result
  modified:   storage/connect/mysql-test/connect/r/json_mongo_c.result
  modified:   storage/connect/mysql-test/connect/r/mongo_c.result
  modified:   storage/connect/mysql-test/connect/r/mongo_java_2.result
  modified:   storage/connect/mysql-test/connect/r/mongo_java_3.result
  modified:   storage/connect/mysql-test/connect/r/odbc_oracle.result
  modified:   storage/connect/mysql-test/connect/r/updelx.result
  modified:   storage/connect/mysql-test/connect/t/mongo_test.inc

  Requires MongoDB C Driver version 1.7 now available
  modified:   storage/connect/CMakeLists.txt

- Add more trace to tbl_thread.test (to debug failure)
  modified:   storage/connect/mysql-test/connect/r/tbl_thread.result
  modified:   storage/connect/mysql-test/connect/t/tbl_thread.test

  modified:   storage/connect/CMakeLists.txt
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/mycat.cc

- Extend SRCDEF parameter processing to MYSQL
  modified:   storage/connect/tabext.cpp
  modified:   storage/connect/tabext.h
  modified:   storage/connect/tabmysql.cpp

- Typo
  modified:   storage/connect/mysql-test/connect/std_data/Mongo2.jar
  modified:   storage/connect/mysql-test/connect/std_data/Mongo3.jar

Fixes also MDEV-13488: InnoDB writes CRYPT_INFO even though
encryption is not enabled.

Problem was that we created encryption metadata (crypt_data) for
system tablespace even when no encryption was enabled and too early.
System tablespace can be encrypted only using key rotation.

Test innodb-key-rotation-disable, innodb_encryption, innodb_lotoftables
require adjustment because INFORMATION_SCHEMA INNODB_TABLESPACES_ENCRYPTION
contain row only if tablespace really has encryption metadata.

fil_crypt_set_thread_cnt: Send message to background encryption threads
if they exits when they are ready. This is required to find tablespaces
requiring key rotation if no other changes happen.

fil_crypt_find_space_to_rotate: Decrease the amount of time waiting
when nothing happens to better enable key rotation on startup.

fsp_header_init: Write encryption metadata to page 0 only if tablespace is
encrypted or encryption is disabled by table option.

i_s_dict_fill_tablespaces_encryption : Skip tablespaces that do not
contain encryption metadata. This is required to avoid too early
wait condition trigger in encrypted -> unencrypted state transfer.

open_or_create_data_files: Do not create encryption metadata
by default to system tablespace.

If this variable is set, skip actual AWS calls, and fake/mock
both generation and encryption of the keys.

The advantage of having a mock mode is that more aws_key_management tests
can be enabled on buildbot.

cases.

Problem is that page 0 and its possible enrryption information
is not read for undo tablespaces.

fil_crypt_get_latest_key_version(): Do not send event to
encryption threads if event does not yet exists. Seen
on regression testing.

fil_read_first_page: Add new parameter does page belong to
undo tablespace and if it does, we do not read FSP_HEADER.

srv_undo_tablespace_open : Read first page of the tablespace
to get crypt_data if it exists and pass it to fil_space_create.

Tested using innodb_encryption with combinations with
innodb-undo-tablespaces.

  in ha_connect::GetStringOption
  modified:   storage/connect/ha_connect.cc

- Begin implement data type BINARY
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/myutil.cpp
  modified:   storage/connect/valblk.cpp
  modified:   storage/connect/valblk.h
  modified:   storage/connect/value.cpp

- Fix MDEV-12422 CONNECT Engine to support CHECK TABLE
  Adding a fake check function returning HA_ADMIN_OK.
  modified:   storage/connect/ha_connect.h

- Treat TBL (thread) as local when connected to the current server
  and return by timeout when a TBL remote table connection fail (Thread only)
  modified:   storage/connect/myconn.cpp
  modified:   storage/connect/tabmysql.h
  modified:   storage/connect/tabtbl.cpp
  modified:   storage/connect/tabtbl.h

- Update some tests and result files
  Add test output to tbl_thread.test tryng to understand failure
  modified:   storage/connect/mysql-test/connect/r/tbl_thread.result
  modified:   storage/connect/mysql-test/connect/t/tbl_thread.test
  modified:   storage/connect/mysql-test/connect/r/updelx.result

- Add the GetCsName function
  modified:   storage/connect/reldef.h

The function ibuf_remove_free_page() may be called while the caller
is holding several mutexes or rw-locks. Because of this, this
housekeeping loop may cause performance glitches for operations that
involve tables that are stored in the InnoDB system tablespace.
Also deadlocks might be possible.

The worst impact of all is that due to the mutexes being held, calls to
log_free_check() had to be skipped during this housekeeping.
This means that the cyclic InnoDB redo log may be overwritten.
If the system crashes during this, it would be unable to recover.

The entry point to the problematic code is ibuf_free_excess_pages().
It would make sense to call it before acquiring any mutexes or rw-locks,
in any 'pessimistic' operation that involves the system tablespace.

fseg_create_general(), fseg_alloc_free_page_general(): Do not call
ibuf_free_excess_pages() while potentially holding some latches.

ibuf_remove_free_page(): Do call log_free_check(), like every operation
that is about to generate redo log should do.

ibuf_free_excess_pages(): Remove some assertions that are replaced
by stricter assertions in the log_free_check() that is now called by
ibuf_remove_free_page().

row_ins_sec_index_entry(), row_undo_ins_remove_sec_low(),
row_undo_mod_del_mark_or_remove_sec_low(),
row_undo_mod_del_unmark_sec_and_undo_update(): Call
ibuf_free_excess_pages() if the operation may involve allocating pages
and change buffering in the system tablespace.

Its output is useless,and, in case of large output, it also may prevent
with search_pattern_in_file.inc from working.

This is a genuine error, and will crash debug buildd in runtime checks if not fixed.
it is better to fail during compile.

The workaround, an extra cmake calls, somehow makes the
connect/cmake_install.cmake to lose installation of connect-engine's
specific jar files.