Hello,
it's great news. My personal opinion about formating NULL values '{a,"",b} -- wrong, "" means empty string, isn't
null '{a,,b} ' -- ok, maybe not unique, '{a, NULL, b}' -- longer, clean NULL is NULL '{a, "NULL", b}' -- "NULL" is
notnull varchar 'NULL'
Flags for array? Maybe bit isHash? So, hash array can be in line
array->null array->hash array
or flag for nor regular array (sparse array), not type unique arrays (array
can contains different types)
Regards
Pavel Stehule
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