COPY FROM not support windows path in 0.6.0

[amythos]

What type of bug is this?

Unexpected error

What subsystems are affected?

Standalone mode, Frontend

Minimal reproduce step

execute query: COPY tbl_aaa FROM 'D:\data\tmp\aaa.parquet' WITH (FORMAT = 'parquet');

What did you expect to see?

copy aaa.parquet into tbl_aaa

What did you see instead?

fail to execute the query

What operating system did you use?

Windows 11

What version of GreptimeDB did you use?

0.6.0

Relevant log output and stack trace

2024-01-18T14:17:40.729123Z ERROR frontend::instance: Failed to execute query: COPY tbl_aaa FROM 'D:\\data\\tmp\\aaa.parquet' WITH (FORMAT = 'parquet'); err=0: Table operation error, at src\frontend\src\instance.rs:267:14
1: Failed to build data source backend, at C:\a\greptimedb\greptimedb\src\operator\src\statement\copy_table_from.rs:62:59
2: Unsupported backend protocol: d, url: D:\\data\\tmp\\aaa.parquet, at src\common\datasource\src\object_store.rs:73:10

[v0y4g3r]

Please use / as path separator instead of backslash on Windows. COPY tbl_aaa FROM 'D:/data/tmp/aaa.parquet' WITH (FORMAT = 'parquet'); would do the trick.