Sample
ecto 3.12.5: Compose dynamic filters, merge select projections, exclude AST clauses, reverse ordering, and attach CTEs and windows with Ecto.Query
Verified sample for hex ecto 3.12.5: Compose dynamic filters, merge select projections, exclude AST clauses, reverse ordering, and attach CTEs and windows…
sha256:df16ccb4e6f7e93c719b21144273e4df7861bd3f0c6bccf9a91c1126c945d04c
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
elixir linux x64 elixir elixir mix
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| elixir 1 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:PASS · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · hex@1 |
2026-08-17 |
| elixir 1 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:PASS · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · hex@1 |
2026-08-18 |
Case
HOW- Goal
- Compose dynamic filters, merge select projections, exclude AST clauses, reverse ordering, and attach CTEs and windows with Ecto.Query
- Packages
- Symbols
-
- Ecto.Query.dynamic
- Ecto.Query.select_merge
- Ecto.Query.exclude
- Ecto.Query.reverse_order
- Ecto.Query.with_cte
- Ecto.Query.windows
- Environment
- elixir
- Created
- 2026-08-17T16:03:49Z
Contract
- Ecto.Query.dynamic constructs composable boolean AST expressions that interpolate into query filter clauses and combine via boolean operators
- select_merge statically combines map or struct projections into a unified select AST while wrapping unprojected queries in a merge expression
- exclude strips individual AST clauses such as where, order_by, select, and join while preserving remaining query composition
- reverse_order inverts ordering directions and null positioning on ordered queries and defaults to descending primary key order for unordered schema queries
- with_cte and windows register Common Table Expression subqueries and window specifications into the query AST
Files
- .formatter.exs
- .gitignore
- NOTES.md
- csx.json
- lib/csx_ecto_query_composition.ex
- lib/csx_ecto_query_composition/post.ex
- lib/csx_ecto_query_composition/query_builder.ex
- lib/csx_ecto_query_composition/user.ex
- mix.exs
- mix.lock
- test/contract_test.exs
- test/test_helper.exs