modified:
  storage/connect/ha_connect.cc
  storage/connect/ha_connect.h
  storage/connect/xindex.cpp

- Optimize retrieving numeric values in scan_record. Was previously
  translating numeric values to character representation back and forth.
modified:
  storage/connect/ha_connect.cc
  storage/connect/mysql-test/connect/r/xml.result

- Modify Pivot table creation to avoid reading the entire source table
  when making columns from Discovery. MDEV-6024
modified:
  storage/connect/tabpivot.cpp