VAL structures replace VALUE classes in binary trees.
  These parsed binary trees are swapped and saved on file
  Swapping is to replace pointers by offsets to make it portable.
  In restoring, class pointers to functions are realloced on place.
  Making BJSON files is done by the new UDF function jfile_bjson.
  modified:   storage/connect/block.h
  modified:   storage/connect/filamtxt.cpp
  modified:   storage/connect/filamtxt.h
  modified:   storage/connect/global.h
  modified:   storage/connect/json.cpp
  modified:   storage/connect/json.h
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/jsonudf.h
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabjson.h
  modified:   storage/connect/value.h

- Make file (record) length and map memory possibly larger than MAX_INT
  modified:   storage/connect/filamap.cpp
  modified:   storage/connect/filamvct.cpp
  modified:   storage/connect/maputil.cpp
  modified:   storage/connect/maputil.h
  modified:   storage/connect/tabdos.cpp
  modified:   storage/connect/xindex.cpp

- Make column length as bytes (not characters)
  This when making column definitions
  modified:   storage/connect/ha_connect.cc

- Change the message when making index fails
  modified:   storage/connect/ha_connect.cc

- Update tests and results to reflect recent changes
  modified:   storage/connect/mysql-test/connect/r/alter_xml.result
  modified:   storage/connect/mysql-test/connect/r/alter_xml2.result
  modified:   storage/connect/mysql-test/connect/r/jdbc_oracle.result
  modified:   storage/connect/mysql-test/connect/r/json.result
  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/xml.result
  modified:   storage/connect/mysql-test/connect/r/xml2.result
  modified:   storage/connect/mysql-test/connect/r/xml2_html.result
  modified:   storage/connect/mysql-test/connect/r/xml2_mult.result
  modified:   storage/connect/mysql-test/connect/r/xml2_zip.result
  modified:   storage/connect/mysql-test/connect/r/xml_html.result
  modified:   storage/connect/mysql-test/connect/r/xml_mult.result
  modified:   storage/connect/mysql-test/connect/r/xml_zip.result
  modified:   storage/connect/mysql-test/connect/t/alter_xml.test
  modified:   storage/connect/mysql-test/connect/t/alter_xml2.test
  modified:   storage/connect/mysql-test/connect/t/jdbc_oracle.test
  modified:   storage/connect/mysql-test/connect/t/json.test
  modified:   storage/connect/mysql-test/connect/t/mongo_test.inc
  modified:   storage/connect/mysql-test/connect/t/odbc_oracle.test
  modified:   storage/connect/mysql-test/connect/t/xml.test
  modified:   storage/connect/mysql-test/connect/t/xml2.test
  modified:   storage/connect/mysql-test/connect/t/xml2_html.test
  modified:   storage/connect/mysql-test/connect/t/xml2_mult.test
  modified:   storage/connect/mysql-test/connect/t/xml2_zip.test
  modified:   storage/connect/mysql-test/connect/t/xml_html.test
  modified:   storage/connect/mysql-test/connect/t/xml_mult.test
  modified:   storage/connect/mysql-test/connect/t/xml_zip.test

- Typo
  modified:   storage/connect/value.cpp

  Also add a new member Saved_Size in the Global structure.
  modified:   storage/connect/global.h
  modified:   storage/connect/plugutil.cpp
  modified:   storage/connect/user_connect.cc
  modified:   storage/connect/jsonudf.cpp

- Add session variables json_all_path and default_depth
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/mongo.cpp
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabxml.cpp

- ADD column options JPATH and XPATH
  Work as FIELD_FORMAT but are more readable
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/ha_connect.h
  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

- Handle negative numbes in the option list
  modified:   storage/connect/ha_connect.cc

- Fix Json parse that could crash the server.
  Was because it could use THROW out of the TRY block.
  Also handle all error by THROW.
  It is now done by a new class JSON.
  modified:   storage/connect/json.cpp
  modified:   storage/connect/json.h

- Add a new UDF function jfile_translate.
  It translate a Json file to pretty = 0.
  Fast because it does not a real parse of the file.
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/jsonudf.h

- Add a now options JSIZE and STRINGIFY to Json tables.
  STRINGIFY makes Objects or Arrays to be returned by their
  json representation instead of by their concatenated values.
  JSIZE allows to specify the LRECL (was 256) defaults to 1024.
  Also fix a bug about locating the sub-table by its path.
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabjson.h

  modified:   storage/connect/ha_connect.cc

- Allow JSON columns to be "binary"
  By setting their type as VARBINAY(132)
  and their name begin with Jbin_
  modified:   storage/connect/json.h
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/value.cpp
  modified:   storage/connect/value.h

- CHARSET BINARY cannot be used for text columns
  modified:   storage/connect/mysql-test/connect/r/updelx.result
  modified:   storage/connect/mysql-test/connect/t/updelx.test

  The variable connect_work_size is now ulong or ulonglong for 64bit machines.
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/user_connect.cc

  All variables handling sizes that were uint are now size_t.
  The variable connect_work_size is now ulong (was uint);
  Also make Json functiosn to allocate a larger memory (M=9 was 7)
  modified:   storage/connect/global.h
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/json.cpp
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/plgdbutl.cpp
  modified:   storage/connect/plugutil.cpp
  modified:   storage/connect/user_connect.cc

- Fix uninitialised variable (pretty) in Json_File.
  Make Jbin_file accept the same arguments as Json_File ones.
  modified:   storage/connect/jsonudf.cpp

- Change the Level option to Depth (the word currently used)
  (Level being still accepted)
  modified:   storage/connect/mongo.cpp
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabxml.cpp

- Suppress 2nd argument default value for MYSQLtoPLG function
  modified:   storage/connect/myutil.h

- Allow REST tables to be create not specifying a file_name
  modified:   storage/connect/tabrest.cpp

  modified:   storage/connect/filamdbf.cpp
  modified:   storage/connect/filamdbf.h
  modified:   storage/connect/filamzip.cpp
  modified:   storage/connect/filamzip.h
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/plgxml.cpp
  modified:   storage/connect/tabdos.cpp
  modified:   storage/connect/tabdos.h
  modified:   storage/connect/tabfix.h

- Add/Init Level class member
  modified:   storage/connect/mongo.cpp
  modified:   storage/connect/mongo.h
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabjson.h

- Typo
  modified:   storage/connect/connect.cc

  and enable using special column in them.
  modified:   storage/connect/tabzip.cpp
  modified:   storage/connect/tabzip.h

- Fix some compiler errors
  modified:   storage/connect/tabcmg.cpp

- Fix https://stackoverflow.com/questions/60625778/import-complex-xml-from-multiple-files-in-mariadb/60637429#60637429
  Import complex XML from multiple files in MariaDB
  Some row results are missing and replaced by the last file one.
  Thats because Nx and Sx column members are not reset when changing file.
  modified:   storage/connect/tabxml.cpp
  modified:   storage/connect/tabxml.h

  Failed compile when XML table type is not supported.
  Was because XMLDEF was unconditionally called from REST table.
  modified:   storage/connect/tabrest.cpp

- Make cmake less verbose
  modified:   storage/connect/CMakeLists.txt

- Hide Switch_to_definer_security_ctx not defined for 10.1 and 10.0
  modified:   storage/connect/ha_connect.cc

  Problem with NOT LIKE queries.
  modified:   storage/connect/ha_connect.cc
  modified:   sql/item_cmpfunc.h

- Fix MDEV-21084
  Misusage of strncat could cause buffer overflow.
  modified:   storage/connect/reldef.cpp
  modified:   storage/connect/tabcmg.cpp
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabrest.cpp
  modified:   storage/connect/tabxml.cpp

---------------------------------------------------------
- Temporarily fix MDEV-13782 by commenting out LIKE_FUNC in CondFilter
  modified:   storage/connect/ha_connect.cc

- Remove use of hack tables
  modified:   storage/connect/connect.cc
  modified:   storage/connect/connect.h
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/xtable.h

---------------------------------------------------------
- Temporarily fix MDEV-13782 by commenting out LIKE_FUNC i, CondFilter
  modified:   storage/connect/ha_connect.cc

- Make Rest available for MariaDB binary distributed versions.
  modified:   storage/connect/CMakeLists.txt

- Remove unused declaration
  modified:   storage/connect/filter.h

The fix consists of three commits backported from 10.3:

1) Cleanup isnan() portability checks

(cherry picked from commit 7ffd7fe9)

2) Cleanup isinf() portability checks

Original problem reported by Wlad: re-compilation of 10.3 on top of 10.2
build would cache undefined HAVE_ISINF from 10.2, whereas it is expected
to be 1 in 10.3.

std::isinf() seem to be available on all supported platforms.
(cherry picked from commit bc469a0b)

3) Use std::isfinite in C++ code

This is addition to parent revision fixing build failures.

(cherry picked from commit 54999f4e)

buf_read_ibuf_merge_pages(): Discard any page numbers that are
outside the current bounds of the tablespace, by invoking the
function ibuf_delete_recs() that was introduced in MDEV-20934.
This could avoid an infinite change buffer merge loop on
innodb_fast_shutdown=0, because normally the change buffer merge
would only be attempted if a page was successfully loaded into
the buffer pool.

dict_drop_index_tree(): Add the parameter trx_t*.
To prevent the DROP TABLE crash, do not invoke btr_free_if_exists()
if the entire .ibd file will be dropped. Thus, we will avoid a crash
if the BTR_SEG_LEAF or BTR_SEG_TOP of the index is corrupted,
and we will also avoid unnecessarily accessing the to-be-dropped
tablespace via the buffer pool.

In MariaDB 10.2, we disable the DROP TABLE fix if innodb_safe_truncate=0,
because the backup-unsafe MySQL 5.7 WL#6501 form of TRUNCATE TABLE
requires that the individual pages be freed inside the tablespace.

This new CONNECT version 1.07 fully implements NOSQL support.
It allows working on JSON or XML data retrieved as REST query results
from all binary distributions of MariaDB when cpprestsdk is installed
and the GetRest library is available.
=====================================================================
- Make Rest available for MariaDB binary distributed versions.
  Change RestGet function so it can be called from a library.
  modified:   storage/connect/CMakeLists.txt
  modified:   storage/connect/restget.cpp
  modified:   storage/connect/tabrest.cpp

- Make column FLAG option available to discovery functions.
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/plgdbsem.h

- Update CONNECT version number and date.
  modified:   storage/connect/ha_connect.cc

- Move OEMColumns function from mycat.cc to reldef.cpp.
  modified:   storage/connect/mycat.cc
  modified:   storage/connect/reldef.cpp

- Allocate tables as TABREF (was RELDEF)
  modified:   storage/connect/mycat.cc
  modified:   storage/connect/mycat.h

- Fix MDEV-20845 by commenting out TIMEOUT setting.
  modified:   storage/connect/myconn.cpp

- Call DefineAM before calling GetColCatInfo. Column offset
  is now based on record format instead of table type.
  The RECFM_VCT format was added.
  This enables tables to specify the record format and is
  useful in particular for OEM tables.
  modified:   storage/connect/plgdbsem.h
  modified:   storage/connect/reldef.cpp
  modified:   storage/connect/reldef.h
  modified:   storage/connect/tabdos.cpp
  modified:   storage/connect/tabdos.h
  modified:   storage/connect/tabfix.cpp
  modified:   storage/connect/tabfmt.cpp
  modified:   storage/connect/tabmysql.cpp
  modified:   storage/connect/tabutil.cpp
  modified:   storage/connect/tabutil.h
  modified:   storage/connect/tabvct.cpp
  modified:   storage/connect/xindex.cpp

using create_w_max_indexes_64.result as a template

Move row size check to early CREATE/ALTER TABLE phase. Stop checking
on table open.

dict_index_add_to_cache(): remove parameter 'strict', stop checking row size

dict_index_t::record_size_info_t: this is a result of row size check operation

create_table_info_t::row_size_is_acceptable(): performs row size check.
Issues error or warning. Writes first overflow field to InnoDB log.

create_table_info_t::create_table(): add row size check

dict_index_t::record_size_info(): this is a refactored version
of dict_index_t::rec_potentially_too_big(). New version doesn't change global
state of a program but return all interesting info. And it's callers who
decide how to handle row size overflow.

dict_index_t::rec_potentially_too_big(): removed

memo_block_unfix(), memo_latch_release(): Merge to ReleaseLatches.

memo_slot_release(), ReleaseAll: Clean up the formatting.

A search with PAGE_CUR_GE may land on the supremum record on
a leaf page that is not the rightmost leaf page.
This could occur when all keys on the current page are
smaller than the search key, and the smallest key on the
successor page is larger than the search key.

ibuf_delete_recs(): Correct the debug assertion accordingly.