[IMPALA-9514] Fix complex type related issues - ASF JIRA

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This is a collection of known issues related to complex type handling in Impala.

IMPALA-2272	Parquet scanner always materializes NULL for empty collections	Resolved	Unassigned	Actions
IMPALA-2490	RowsReturned profile counter may be wrong with nested types	Open	Abhishek Rawat	Actions
IMPALA-2603	Incorrect results and plan for inline view referencing several collection types correlated with different ancestor blocks	Resolved	Unassigned	Actions
IMPALA-2637	Can't ALTER TABLE to new database if all columns are complex types	Open	Unassigned	Actions
IMPALA-6573	Create consistent response on column access failures.	Open	Unassigned	Actions
IMPALA-6605	Exception hidden on complex type	Open	Fredy Wijaya	Actions
IMPALA-7471	Impala can hit dcheck in corrupted Parquet files	Open	Csaba Ringhofer	Actions
IMPALA-10838	Error when struct returned from WITH() and used in an ORDER BY	Resolved	Daniel Becker	Actions
IMPALA-10839	NULL values are displayed on a wrong level for nested structs (ORC)	Resolved	Daniel Becker	Actions
IMPALA-10977	Make zipping unnest work with absolute paths	Open	Unassigned	Actions
IMPALA-11067	Unify struct subexpressions in rows	Resolved	Daniel Becker	Actions
IMPALA-11148	Unnesting from views work only when alias is provided	Open	Unassigned	Actions
IMPALA-11280	Zipping unnest hits DCHECK when querying from a view that has an IN operator	Resolved	Gabor Kaszab	Actions