0
我有這張表,它是在我的數據庫中自動創建的。 這是使用\d
命令的表格說明。如何在postgres SQL表中重新定義索引
表 「public.tableA」:
Column | Type | Modifiers
----------------------------+----------+-----------------------------------------------------
var_a | integer | not null
var_b | integer | not null
var_c | bigint | not null default nextval('var_c_sequence'::regclass)
var_d | integer |
var_e | integer |
var_f | smallint | default mysessionid()
var_g | smallint | default (-1)
var_h | boolean | default false
var_g | uuid |
指標:
"tableA_pkey" PRIMARY KEY, btree (var_c)
"tableA_edit" btree (var_g) WHERE var_g <> (-1)
"tableA_idx" btree (var_a)
檢查約束:
"constraintC" CHECK (var_f > 0 AND var_d IS NULL AND var_e IS NULL OR (var_f = 0 OR var_f = (-1)) AND var_d IS NOT NULL AND var_e IS NOT NULL)
觸發器:
object_create BEFORE INSERT ON tableA FOR EACH ROW EXECUTE PROCEDURE create_tableA()
object_update BEFORE DELETE OR UPDATE ON tableA FOR EACH ROW EXECUTE PROCEDURE update_tableA()
我有興趣自己創建這張表,我不太清楚如何手動定義這個索引,有什麼想法?
你應該展示你正在處理的一些代碼。用戶將嘗試改進併爲您的問題找到解決方案。 – McNets
嘗試在數據庫上運行['pg_dump -s'](https://www.postgresql.org/docs/current/static/app-pgdump.html)? – Kevin