Jack Ling e0c032d1b1 fix(database/gdb): handle empty string in Fields() gracefully (#4700) ...

## Summary
Fix bug where `Fields("")` with empty string generates invalid SQL
`SELECT FROM table`.

## Root Cause
`mappingAndFilterToTableFields` method doesn't skip empty strings when
processing fields:
- `gstr.SplitAndTrim("", ",")` returns empty array
- No fields added to query
- Results in invalid SQL: `SELECT FROM table`

## Fix
Skip empty string fields in `mappingAndFilterToTableFields` (line
97-100):
```go
// Skip empty string fields
if fieldStr == "" {
    continue
}
```

## Behavior Changes
- `Fields("")` → SELECT * FROM table (uses default)
- `Fields("", "id")` → SELECT id FROM table (ignores empty string)
- `Fields("id", "", "nickname")` → SELECT id, nickname FROM table

## Tests
Added `Test_Issue4697` with 3 scenarios covering all cases above.

## Related
Fixes #4697
Ref #4703 (discovered during pagination test development)

2026-02-26 16:27:00 +08:00

..

gdb

fix(database/gdb): handle empty string in Fields() gracefully (#4700)

2026-02-26 16:27:00 +08:00

gredis

feat(instance): migrate instance containers to type-safe generics (#4617)

2026-01-16 15:23:13 +08:00