chore: heygermany customer project

db/postgres/0029-candidate-experience-history.sql

@@ -0,0 +1,99 @@
+ALTER TABLE app.candidate_experience
+    DROP CONSTRAINT IF EXISTS ai_data_requires_document,
+    DROP CONSTRAINT IF EXISTS candidate_experience_source_document_id_fkey,
+    DROP CONSTRAINT IF EXISTS candidate_experience_candidate_id_key;
+
+DO $$
+BEGIN
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'app'
+          AND table_name = 'candidate_experience'
+          AND column_name = 'employer'
+    ) AND EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'app'
+          AND table_name = 'candidate_experience'
+          AND column_name = 'employer_name'
+    ) THEN
+        UPDATE app.candidate_experience
+        SET employer_name = employer
+        WHERE employer_name IS NULL
+          AND employer IS NOT NULL;
+
+        ALTER TABLE app.candidate_experience DROP COLUMN employer;
+    ELSIF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'app'
+          AND table_name = 'candidate_experience'
+          AND column_name = 'employer'
+    ) AND NOT EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'app'
+          AND table_name = 'candidate_experience'
+          AND column_name = 'employer_name'
+    ) THEN
+        ALTER TABLE app.candidate_experience RENAME COLUMN employer TO employer_name;
+    END IF;
+
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'app'
+          AND table_name = 'candidate_experience'
+          AND column_name = 'position'
+    ) AND EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'app'
+          AND table_name = 'candidate_experience'
+          AND column_name = 'role_title'
+    ) THEN
+        UPDATE app.candidate_experience
+        SET role_title = "position"
+        WHERE role_title IS NULL
+          AND "position" IS NOT NULL;
+
+        ALTER TABLE app.candidate_experience DROP COLUMN "position";
+    ELSIF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'app'
+          AND table_name = 'candidate_experience'
+          AND column_name = 'position'
+    ) AND NOT EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_schema = 'app'
+          AND table_name = 'candidate_experience'
+          AND column_name = 'role_title'
+    ) THEN
+        ALTER TABLE app.candidate_experience RENAME COLUMN "position" TO role_title;
+    END IF;
+END;
+$$;
+
+ALTER TABLE app.candidate_experience
+    ADD COLUMN IF NOT EXISTS country VARCHAR,
+    ADD COLUMN IF NOT EXISTS city VARCHAR,
+    ADD COLUMN IF NOT EXISTS facility_type VARCHAR;
+
+ALTER TABLE app.candidate_experience
+    DROP COLUMN IF EXISTS source_document_id,
+    DROP COLUMN IF EXISTS duration_months,
+    DROP COLUMN IF EXISTS is_full_time,
+    DROP COLUMN IF EXISTS duties,
+    DROP COLUMN IF EXISTS ai_employer,
+    DROP COLUMN IF EXISTS ai_position,
+    DROP COLUMN IF EXISTS ai_department,
+    DROP COLUMN IF EXISTS ai_start_date,
+    DROP COLUMN IF EXISTS ai_end_date,
+    DROP COLUMN IF EXISTS ai_duration_months,
+    DROP COLUMN IF EXISTS ai_is_full_time,
+    DROP COLUMN IF EXISTS ai_duties,
+    DROP COLUMN IF EXISTS ai_extracted_by,
+    DROP COLUMN IF EXISTS ai_extraction_date;