- Declare all 34 columns needed by dbt in GIAS tap schema (target-postgres
only persists columns present in the Singer schema message)
- Use nullif() for empty-string-to-integer/date casts in staging models
- Scope daily DAG dbt build to GIAS models only (stg_gias_establishments+
stg_gias_links+) to avoid errors on unloaded sources
- Scope annual EES DAG similarly; remove redundant dbt test steps
- Make dim_school gracefully handle missing int_ofsted_latest table
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
CSV is read with dtype=str so all values arrive as strings. Declaring
LA (code) and EstablishmentNumber as IntegerType caused schema
validation failures in target-postgres. Use StringType for all columns
except URN (which is explicitly cast to int for the primary key).
Type casting happens in dbt staging models.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Port critical patterns from the working integrator into Singer taps:
- GIAS: add 404 fallback to yesterday's date, increase timeout to 300s,
use latin-1 encoding, use dated URL for links (static URL returns 500)
- FBIT: add GIAS date fallback, increase timeout, fix encoding to latin-1
- IDACI: use dated GIAS URL with fallback instead of undated static URL,
fix encoding to latin-1, increase timeout to 300s
- Ofsted: try utf-8-sig then fall back to latin-1 encoding
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
