Tracking Issue: Nested data support

[neverchanje]

Parser:

• Support parsing ROW expression. ROW(1.0, 2, "abc) or (1.0, 2, "abc"), e.g. feat: support parsing row type #463
• Support parsing ARRAY expression.

Integration

• Create a flatten table schema according to proto file. https:/singularity-data/risingwave-legacy/pull/2747
• Create a nested table schema according to proto file. #575
• Support showing the types under the table #582

Binder:

• Support binding values with STRUCT type when they are parsed as ROW. #581
• Support binding values with LIST type when they are parsed as ARRAY.
• Bind field selection, wildcard field selection and array access expression.

Execution:

• Introduce STRUCT data type: feat: introduce struct type #485
• Introduce StructArray: feat: implement struct array's layout #451
• Introduce LIST data type #578
• Introduce ListArray #579
• Support field selection expression for structs. SELECT t.a.b FROM t, e.g. #580
• Support wildcard field selection for structs. SELECT t.a.* FROM t, e.g. #583
• Support array access expression. SELECT t.a[1] FROM t, e.g. #584

Pgwire

• Support serde of STRUCT values. #576
• Support serde of ARRAY values. #577

[xxchan]

finished?