11 lines
656 B
SQL
11 lines
656 B
SQL
-- ============================================================
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-- P1.8: tree_evaluation 单株评价 —— 试验研究点/座果率负载（规格 §4）
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-- ------------------------------------------------------------
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-- 幂等。bre_tree_evaluation 表已由 bre_tables.sql 建好。
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-- ============================================================
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ALTER TABLE bre_tree_evaluation ADD COLUMN IF NOT EXISTS trial_study_id integer REFERENCES bre_trial_study(id);
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CREATE INDEX IF NOT EXISTS ix_bre_tree_evaluation_trial_study_id ON bre_tree_evaluation(trial_study_id);
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ALTER TABLE bre_tree_evaluation ADD COLUMN IF NOT EXISTS crop_load double precision;
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