24 lines
1.1 KiB
SQL
24 lines
1.1 KiB
SQL
-- Uniques and indexes to enforce data integrity and performance
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-- Unique, case-insensitive names
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CREATE UNIQUE INDEX IF NOT EXISTS ux_make_name ON vehicles.make (lower(name));
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CREATE UNIQUE INDEX IF NOT EXISTS ux_model_make_name ON vehicles.model (make_id, lower(name));
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-- Model/Year availability
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ALTER TABLE vehicles.model_year
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ADD CONSTRAINT ux_model_year UNIQUE (model_id, year);
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CREATE INDEX IF NOT EXISTS ix_model_year_year_model ON vehicles.model_year (year, model_id);
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-- Trims are unique per model_year by name (case-insensitive)
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CREATE UNIQUE INDEX IF NOT EXISTS ux_trim_modelyear_name ON vehicles.trim (model_year_id, lower(name));
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CREATE INDEX IF NOT EXISTS ix_trim_modelyear_name ON vehicles.trim (model_year_id, name);
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-- Engine uniqueness (prefer code when present)
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CREATE UNIQUE INDEX IF NOT EXISTS ux_engine_code_not_null ON vehicles.engine (code) WHERE code IS NOT NULL;
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CREATE UNIQUE INDEX IF NOT EXISTS ux_engine_name ON vehicles.engine (lower(name));
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-- Bridge indexes
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CREATE INDEX IF NOT EXISTS ix_trim_engine_trim ON vehicles.trim_engine (trim_id);
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CREATE INDEX IF NOT EXISTS ix_trim_engine_engine ON vehicles.trim_engine (engine_id);
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