File File Import Wizard fails when column count is inconsistent

[amtwo]

Issue Type: Bug

1. Create a CSV file where the header row contains 5 columns of data, but the first 50+ rows have only 4 columns of data. At least one row at the end of the file should have all 5 columns fo data, matching the header.
2. Use the Flat File Import Wizard to import the file. Notice on the Preview step that it samples the first 50 rows, and displays only 4 columns of data.
3. Execute the import, and it will end with the error "Error inserting data into table." with no additional details.

The import fails because the wizard is attempting to import only the 4 columns, and when it gets to the row with 5 columns, it fails.

The wizard should at least be able to bubble up that the file has an inconsistent column count, so that I know the file is not properly formatted. Ideally, it would handle this gracefully, similar to the way the Import-Csv PowerShell cmdlet does, and successfully import the file, even with inconsistent column counts

Azure Data Studio version: azuredatastudio 1.2.4 (1ebfd02, 2018-11-02T21:50:52.634Z)
OS version: Windows_NT x64 10.0.17134

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz (8 x 2112)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: enabled video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Memory (System)	15.93GB (2.59GB free)
Process Argv	C:\Program Files\Azure Data Studio\azuredatastudio.exe
Screen Reader	no
VM	50%

[aasimkhan30]

The latest version works fine with such CSVs. Closing this issue for now.