Import Error: Attribute :block/journal-day should be marked as :db/index true

@tiensonqin is already working on this.

Since Jun 23, 2026.

### Search first

- [x] I searched and no similar issues were found

### What Happened?

When i export a new graph as EDN file and import it, i get this error:

Something went wrong

`Attribute :block/journal-day should be marked as :db/index true`

### Reproduce the Bug

1. Create new graph
2. Export as EDN
3. Import EDN file

### Expected Behavior

no errors

### Screenshots

_No response_

### Files

_No response_

### Browser, Desktop or Mobile Platform Information

NixOS 25.11.10684.8fd9daa3db09
Logseq-linux-x86_64-2.0.1-alpha+nightly.20260622

### Additional Context

The graph is still sucessfully imported. No validation error.

Exported:

Your graph is valid! {:entities 194, :pages 143, :blocks 38, :classes 18, :properties 118, :objects 7, :property-pairs 630, :datoms 2409}

Imported:

Your graph is valid! {:entities 194, :pages 143, :blocks 38, :classes 18, :properties 118, :objects 7, :property-pairs 630, :datoms 2783}

No error with SQLite file import.

### Are you willing to submit a PR? If you know how to fix the bug.

- [ ] I'm willing to submit a PR (Thank you!)