perf(expr): further optimize performance

[wangrunji0408]

This PR includes several optimizations to expression evaluation.

• modify the Array trait.
  • introduce is_null and get_raw (originally get_unchecked) as low-level methods.
  • remove iterator structures. use RPITIT to simplify code.
• optimize the filter operation on the array.
• optimize bitvec operations. its built-in operations have poor performance. 😕
• optimize the cast to string array. introduce writer for Utf8Array to avoid generating String.
• avoid using zip_eq on the critical path.

Bench Results

bench	old	new	change
add(i32,i32)	1.2296 µs	365.56 ns	-70.906%
mul(i32,i32)	1.2369 µs	373.86 ns	-70.162%
eq(i32,i32)	1.1316 µs	904.02 ns	-20.275%
gt(i32,i32)	1.1296 µs	910.48 ns	-20.115%
add(f64,f64)	1.4912 µs	648.14 ns	-56.439%
mul(f64,f64)	1.5012 µs	647.52 ns	-57.020%
div(f64,f64)	1.5708 µs	728.73 ns	-53.531%
eq(f64,f64)	2.8126 µs	2.5688 µs	-8.5452%
gt(f64,f64)	3.7635 µs	3.5239 µs	-6.2045%
add(decimal,decimal)	14.215 µs	13.384 µs	-5.8360%
mul(decimal,decimal)	12.364 µs	11.544 µs	-6.5028%
eq(decimal,decimal)	13.599 µs	13.805 µs	+1.4521%
gt(decimal,decimal)	13.692 µs	13.849 µs	+1.1735%
and(bool,bool)	8.4668 µs	2.3852 µs	-71.878%
or(bool,bool)	8.4402 µs	1.2443 µs	-85.264%
not(bool)	163.67 ns	772.42 ns	+368.99%
sum(i32)	298.17 ns	295.43 ns	-0.8082%
max(i32)	9.6741 µs	6.3693 µs	-34.099%
first(i32)	5.7060 ns	4.7957 ns	-15.959%
count(i32)	13.459 ns	13.465 ns	-0.1833%
sum(f64)	3.6906 µs	3.6942 µs	-0.0145%
max(f64)	17.019 µs	16.243 µs	-4.6018%
first(f64)	5.9944 ns	4.8889 ns	-18.660%
count(f64)	13.486 ns	13.462 ns	+0.2111%
sum(decimal)	29.358 µs	29.617 µs	-0.2345%
max(decimal)	23.269 µs	23.141 µs	+0.1118%
first(decimal)	6.4851 ns	5.1673 ns	-19.684%
count(decimal)	13.448 ns	13.462 ns	+0.0345%
cast(i32->f64)	560.58 ns	556.22 ns	+0.0332%
cast(f64->decimal)	123.47 µs	118.41 µs	-4.0403%
cast(i32->string)	83.432 µs	52.788 µs	-36.677%
cast(f64->string)	181.72 µs	165.45 µs	-8.8352%
cast(decimal->string)	134.69 µs	92.167 µs	-31.467%
filter(i32)	17.656 µs	7.2464 µs	-58.961%

TPC-H Results

time(s)	old	new	change
Q1	1.580	1.467	-7%
Q3	0.434	0.314	-28%
Q5	0.853	0.827	-3%
Q6	0.469	0.158	-66%
Q10	0.672	0.527	-22%