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Wiki / Functions

col_description

Returns the comment for a table column, which is specified by the OID of its table and its column number. (obj_description cannot be used for table columns, since columns do not have OIDs of their own.)

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

group
info
group label
系统信息函数和操作符
lang
en
layout
table-new
pages
functions-info.html
prose only
false

Definition PG 18

Returns the comment for a table column, which is specified by the OID of its table and its column number. (obj_description cannot be used for table columns, since columns do not have OIDs of their own.)

Signatures and overloads

col_description ( table oid, column integer ) → text → text
Returns the comment for a table column, which is specified by the OID of its table and its column number. (obj_description cannot be used for table columns, since columns do not have OIDs of their own.)

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Complete source facts

documentation revision

{"inputs":[{"file":"functions-info.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"64499116227a087138bb14f29ff6652b200a176d5df3ce2a089c3d5c226b19b3","version":"18.7"},{"file":"functions-info.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"f9684137c0b9fb17a691c4d905529d114472a507a007c15058f2703962b611d2","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"}

Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:22c2c1dfcf2eb570cc0513f17a133af79ab0b37179f158b2dfb50e836a813af2

Text language: en · wiki-repair-20261023:22c2c1dfcf2eb570cc0513f17a133af79ab0b37179f158b2dfb50e836a813af2