Postgresql 更改表格以添加'；按范围划分'；博士后

我想通过添加分区范围和存档日期来更改表

CREATE TABLE transactions(
    id              UUID         not null ,
    txn_id          UUID         NOT NULL,
    orderId         UUID         NOT NULL,
    inserttstmp     timestamp    not NULL
    archivedate     timestamp    NULL
)

通常，每当我用下面的脚本创建带有分区的新表时。但现在，我们希望对现有表执行相同的操作

CREATE TABLE attachment(
    id              UUID            not null,
    txn_id          UUID         NOT NULL,
    attachment_id   UUID         NOT NULL,
    inserttstmp     timestamp    not NULL
    archivedate     timestamp    NULL
)PARTITION BY RANGE (archivedate);

CREATE TABLE ins_txn_attachment_live PARTITION OF ins_txn_attachment DEFAULT;
ALTER  TABLE ins_txn_attachment_live ADD CHECK (archivedate is null);
ALTER  TABLE ins_txn_attachment_live ADD CONSTRAINT PK_INS_TXN_ATTACHMENT_EVENT_Live unique (id);

CREATE UNIQUE NONCLUSTERED INDEX PK_Ins_TXN_Attachment_ID_ArchiveData ON ins_txn_attachment (id,archivedate);

谢谢，

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Jagadeesh

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