Fix schema sync not discovering tables in non-default schemas

[ouywm]

PR Info

• Closes entity sync does not work with postgres when tables have schemas defined #2952

• Dependencies:

  • N/A

• Dependents:

  • N/A

New Features

• N/A

Bug Fixes

• sync() only ran SchemaDiscovery against CURRENT_SCHEMA() (typically public). Entities with #[sea_orm(schema_name = "sys")] were never discovered, so every sync
  attempted CREATE TABLE again, failing with relation "xxx" already exists. Root cause has two layers: (1) discovery was hardcoded to a single schema, (2) the table lookup
  compared full TableName (with schema qualifier) against discovered tables (without schema qualifier), so even if the table existed it could never match.

Breaking Changes

• N/A. Fully backward compatible — entities without schema_name produce the same single-schema discovery as before.

Changes

• Add schema_name: Option<String> field to EntitySchemaInfo, captured from EntityName::schema_name()
• Replace DiscoveredSchema.tables: Vec<TableCreateStatement> with tables_by_schema: HashMap<String, Vec<TableCreateStatement>> keyed by schema name
• Collect all unique target schemas from registered entities before discovery; run SchemaDiscovery::new_no_exec(schema) for each schema (Postgres & MySQL)
• Add DiscoveredSchema::find_table() for schema-aware table lookup — resolves entity's effective schema (explicit or current_schema fallback), then compares bare table
  names within that bucket
• SQLite unchanged (uses empty string as schema key)
• Regenerated sea-orm-sync via make-sync.sh

[ouywm]

Done. The unrelated changes were from make-sync.sh syncing other pending commits into sea-orm-sync/. Already cleaned up — now only the two builder.rs files remain.

…

2026年3月22日 18:57，狐狸 ***@***.***> 写道： Huliiiiii left a comment (SeaQL/sea-orm#3016) <#3016 (comment)> Please cleanup unrelated changes. — Reply to this email directly, view it on GitHub <#3016?email_source=notifications&email_token=A3ESMEE2R3KR43EAO5RKZS34R7BLPA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMJQGYYDAMBXGM42M4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2KYZTPN52GK4S7MNWGSY3L#issuecomment-4106000739>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A3ESMEC2HZX2H2NBIUWKWUL4R7BLPAVCNFSM6AAAAACW2SUGXSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DCMBWGAYDANZTHE>. You are receiving this because you authored the thread.

[Huliiiiii]

Could you add a test for this?

[Huliiiiii]

Enums should be grouped by schema as well.

[Huliiiiii]

I noticed that the changes in sea-orm-sync and sea-orm are not aligned. I've updated sea-orm-sync. Could you rebase onto master and make sure the changes are consistent between sea-orm and sea-orm-sync?

[ouywm]

Good call, thanks — I'll add a regression test for this and update the PR soon.