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system_user

Returns the authentication method and the identity (if any) that the user presented during the authentication cycle before they were assigned a database role. It is represented as auth_method:identity or NULL if the user has not been authenticated (for example if Trust authentication has been used).

English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.

Reading PG 18·Select a recorded version

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系统信息函数和操作符
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en
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functions-info.html
prose only
false

Definition PG 18

Returns the authentication method and the identity (if any) that the user presented during the authentication cycle before they were assigned a database role. It is represented as auth_method:identity or NULL if the user has not been authenticated (for example if Trust authentication has been used).

Signatures and overloads

system_user → text → text
Returns the authentication method and the identity (if any) that the user presented during the authentication cycle before they were assigned a database role. It is represented as auth_method:identity or NULL if the user has not been authenticated (for example if Trust authentication has been used).

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Complete source facts

documentation revision

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Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:a113b83ec69ba1849b1659b4648ae6a1e5c349e9530c8153e6f8222e0a7afd76

Text language: en · wiki-repair-20261023:a113b83ec69ba1849b1659b4648ae6a1e5c349e9530c8153e6f8222e0a7afd76