72 lines
1.8 KiB
SQL
72 lines
1.8 KiB
SQL
-- LegacyWorlds Beta 6
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-- PostgreSQL database scripts
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--
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-- Technology definitions
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--
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-- Copyright(C) 2004-2010, DeepClone Development
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-- --------------------------------------------------------
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--
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-- Categories
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--
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CREATE TABLE tech.categories(
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name_id INT NOT NULL PRIMARY KEY ,
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description_id INT NOT NULL
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);
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CREATE INDEX idx_categories_description
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ON tech.categories (description_id);
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ALTER TABLE tech.categories
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ADD CONSTRAINT fk_categories_name
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FOREIGN KEY (name_id) REFERENCES defs.strings ,
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ADD CONSTRAINT fk_categories_description
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FOREIGN KEY (description_id) REFERENCES defs.strings;
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--
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-- Technologies
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--
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CREATE TABLE tech.technologies(
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name_id INT NOT NULL PRIMARY KEY ,
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description_id INT NOT NULL ,
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category_id INT NOT NULL ,
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points INT NOT NULL CHECK( points > 0 ) ,
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cost INT NOT NULL CHECK( cost > 0 )
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);
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CREATE INDEX idx_technologies_description
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ON tech.technologies (description_id);
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CREATE INDEX idx_technologies_category
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ON tech.technologies (category_id);
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ALTER TABLE tech.technologies
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ADD CONSTRAINT fk_technologies_category
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FOREIGN KEY (category_id) REFERENCES tech.categories ,
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ADD CONSTRAINT fk_technologies_name
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FOREIGN KEY (name_id) REFERENCES defs.strings ,
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ADD CONSTRAINT fk_technologies_description
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FOREIGN KEY (description_id) REFERENCES defs.strings;
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--
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-- Dependencies
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--
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CREATE TABLE tech.dependencies(
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technology_id INT NOT NULL ,
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depends_on INT NOT NULL ,
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PRIMARY KEY( technology_id , depends_on )
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);
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CREATE INDEX idx_dependencies_dependson
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ON tech.dependencies (depends_on);
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ALTER TABLE tech.dependencies
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ADD CONSTRAINT fk_dependencies_technology
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FOREIGN KEY (technology_id) REFERENCES tech.technologies ,
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ADD CONSTRAINT fk_dependencies_dependson
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FOREIGN KEY (depends_on) REFERENCES tech.technologies;
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