fix(datastore): data lost when save table with error

[goldenxinxing]

Description

#1916

1. [Client] add ut for python sdk(dataset and datastore with data of SwObject)
2. [Server] fix lost data bug when save table with error
3. [Server] fix load data exception when data is null at the step of insertRecords
4. [Server] add retry logic when load is invalid

Modules

• UI
• Controller
• Agent
• Client
• Python-SDK
• Others

Checklist

• run code format and lint check
• add unit test
• add necessary doc

[codecov]

Codecov Report

Merging #1938 (a587b24) into main (a24c902) will increase coverage by 0.05%.
The diff coverage is 83.95%.

@@             Coverage Diff              @@
##               main    #1938      +/-   ##
============================================
+ Coverage     82.36%   82.41%   +0.05%     
- Complexity     2063     2068       +5     
============================================
  Files           374      377       +3     
  Lines         20344    20466     +122     
  Branches       1121     1122       +1     
============================================
+ Hits          16757    16868     +111     
- Misses         3076     3087      +11     
  Partials        511      511              

Flag	Coverage Δ
controller	73.56% <83.95%> (+0.03%)	⬆️
standalone	90.92% <ø> (+0.01%)	⬆️
unittests	90.92% <ø> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../java/ai/starwhale/mlops/datastore/ColumnType.java	89.41% <ø> (+1.03%)	⬆️
...n/java/ai/starwhale/mlops/datastore/DataStore.java	85.32% <ø> (ø)
...ai/starwhale/mlops/datastore/parquet/SwWriter.java	77.77% <77.77%> (ø)
...tarwhale/mlops/datastore/impl/MemoryTableImpl.java	88.98% <81.13%> (-1.08%)	⬇️
...rwhale/mlops/datastore/parquet/SwWriteSupport.java	92.85% <91.66%> (+1.19%)	⬆️
...lops/datastore/parquet/SwParquetWriterBuilder.java	53.57% <100.00%> (+5.57%)	⬆️
...arwhale/mlops/datastore/parquet/SwReadSupport.java	73.33% <100.00%> (+2.96%)	⬆️

... and 16 files with indirect coverage changes

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[tianweidut]

LGTM

[jialeicui]

LGTM