pypreqlt 0.0.3

Simple Declarative Data Pipelines

Combine the simplicity of Preql/Trilogy with the modern data stack.

Compile your models to ETL scripts to run on demand. Rebuild, run, and test easily.

Translates 'Persist' statements in Preql/Trilogy to scheduled ETL jobs.

Currently supported backends:

• DBT

[!WARNING] This is a work in progress. Please report any issues or feature requests.

Flags

--optimize=X - Any CTE used at least X times in calculating final model outputs will be materialized for reuse.

[!TIP] Don't worry about optimizing your temp table graph ever again - write your final tables and let PreqLT handle the rest.

Install

pip install pypreqlt

How to Run

preqlt <preql_path> <dbt_project_root_path> --run

preqlt dbt/models/core/ ./dbt bigquery --run

Each source preql file will be built into a separate DBT sub folder with one model per persist statement.

17:12:37  Running with dbt=1.7.4
17:12:38  Registered adapter: bigquery=1.7.2
17:12:38  Found 4 models, 4 tests, 0 sources, 0 exposures, 0 metrics, 447 macros, 0 groups, 0 semantic models
17:12:38
17:12:40  Concurrency: 4 threads (target='dev')
17:12:40
17:12:41  1 of 4 START sql view model dbt_test.customers ................................. [RUN]
17:12:41  2 of 4 START sql table model dbt_test.customers_preql_preqlt_gen_model ......... [RUN]
17:12:41  3 of 4 START sql table model dbt_test.my_first_dbt_model ....................... [RUN]
17:12:42  1 of 4 OK created sql view model dbt_test.customers ............................ [CREATE VIEW (0 processed) in 1.09s]
17:12:43  3 of 4 OK created sql table model dbt_test.my_first_dbt_model .................. [CREATE TABLE (2.0 rows, 0 processed) in 2.78s]
17:12:43  4 of 4 START sql view model dbt_test.my_second_dbt_model ....................... [RUN]
17:12:44  2 of 4 OK created sql table model dbt_test.customers_preql_preqlt_gen_model .... [CREATE TABLE (100.0 rows, 4.3 KiB processed) in 3.55s]
17:12:44  4 of 4 OK created sql view model dbt_test.my_second_dbt_model .................. [CREATE VIEW (0 processed) in 1.10s]
17:12:44
17:12:44  Finished running 2 view models, 2 table models in 0 hours 0 minutes and 6.37 seconds (6.37s).
17:12:45  
17:12:45  Completed successfully
17:12:45
17:12:45  Done. PASS=4 WARN=0 ERROR=0 SKIP=0 TOTAL=4
customers: success
my_first_dbt_model: success
customers_preql_preqlt_gen_model: success
my_second_dbt_model: success

From IO

Write-Output """constant x <-5; persist into static as static select x;""" | preqlt C:\Users\ethan\coding_projects\pypreql-etl\jaffle_shop bigquery