21 lines
535 B
PL/PgSQL
21 lines
535 B
PL/PgSQL
BEGIN;
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CREATE TABLE examples (
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id BIGSERIAL PRIMARY KEY
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);
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CREATE TABLE example_texts (
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id BIGSERIAL PRIMARY KEY,
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example_id BIGINT NOT NULL REFERENCES examples (id),
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language_id BIGINT NOT NULL REFERENCES languages (id),
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index BIGINT NOT NULL,
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value TEXT NOT NULL,
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CONSTRAINT index_is_not_negative CHECK(index >= 0),
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CONSTRAINT value_is_sane_text CHECK (is_sane_text(value))
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);
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CREATE UNIQUE INDEX example_texts_example_language_index
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ON example_texts (example_id, language_id, index);
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COMMIT;
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