LuciferYang opened a new issue, #9768:
URL: https://github.com/apache/paimon/issues/9768
### Bug description
`StringToArrayCastRule.splitArrayElements` and
`StringToRowCastRule.splitRowFields` toggle quote state on a double quote but
then still append the character, so quote characters stay embedded in the
parsed token. A complex-type default value like `DEFAULT '["a,b", c]'` on an
`ARRAY<STRING>` column silently stores the element `"a,b"` **with literal
quotes** (and on non-string element types parsing fails).
Quotes are meant to group a token across separators — the map rule
(`StringToMapCastRule.splitMapEntries`) already drops them.
### Expected behavior
`["a,b", c]` parses to elements `a,b` and `c` — grouping quotes are not part
of the value.
### Steps
`CREATE TABLE t (...) WITH ('fields.f.default'='["a,b", c]')` on an
ARRAY<STRING> column (or the equivalent alter-column-default), then observe the
materialized default on writes via DefaultValueRow.
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