doris-debug-materialized-view SKILL.md skillA
doris-debug-materialized-view from apache/doris-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add apache/doris-skills/doris-debug-materialized-view@v0.2.0Pins v0.2.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- apache/doris-skills
- Path
skills/doris-debug/materialized-view/SKILL.md- Versions recorded
- 1
- Latest version
- v0.2.0, committed Jul 24, 2026
- Size
- 2,846 bytes
- Repository stars
- 47
- License
- Apache-2.0
Use for Doris sync MV (rollup) miss or async MTMV refresh/rewrite issues. Commands: SHOW ALTER TABLE MATERIALIZED VIEW, mv_infos(), EXPLAIN, REFRESH MATERIALIZED VIEW.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Materialized View
## Kind comparison
| Kind | Code area | Check | Rewrite mechanism |
|------|-----------|-------|-------------------|
| Sync | `MaterializedViewHandler` / rollup | `SHOW ALTER TABLE MATERIALIZED VIEW` | Transparent — planner auto-selects |
| Async MTMV | `fe/.../mtmv/` | `mv_infos()` RefreshState | CBO-based — EXPLAIN shows if matched |
## Causes
| ID | Cause | Evidence | Kind |
|----|-------|----------|------|
| A | Sync MV build pending/stuck | `SHOW ALTER TABLE MATERIALIZED VIEW` State≠FINISHED | Sync |
| B | MTMV refresh failed | `mv_infos()` RefreshState=FAIL | Async |
| C | MTMV rewrite miss | EXPLAIN shows no MATERIALIZED_REWRITE | Async |
| D | MTMV data stale | `mv_infos()` LastRefreshTime old | Async |
| E | MV not selected by planner | EXPLAIN shows TABLE SCAN not MATERIALIZED | Either |
## 10 min triage
```sql
-- Sync MV status
SHOW ALTER TABLE MATERIALIZED VIEW FROM db;
-- Async MTMV status
SELECT * FROM mv_infos('database'='db') WHERE Name='mv'\G
-- Check rewrite eligibility
EXPLAIN VERBOSE SELECT ...;
-- Force refresh
REFRESH MATERIALIZED VIEW mv;
-- Enable external MV rewrite (for catalog queries)
…Read the whole file at its exact version.
How to install
mdr add apache/doris-skills/doris-debug-materialized-view@sha256:6a9033b26093cddfThe line at the top of this page pins the label v0.2.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_kmsq4sa5uc7uillm)
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Versions
The registry has recorded 1 version of this file, committed on Jul 24, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2846 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
apache/doris-skills · 47 stars · license Apache-2.0 · pushed 2026-09-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_kmsq4sa5uc7uillm GET https://markdownregistry.com/api/v1/resolve?ref=apache/doris-skills/doris-debug-materialized-view GET https://markdownregistry.com/api/v1/blob/6a9033b26093cddf71883828a8938ff4bf6ca04474377544a9ea9cbe94cf01e8
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.