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Wiki / Functions

XMLTABLE

The xmltable expression produces a table based on an XML value, an XPath filter to extract rows, and a set of column definitions. Although it syntactically resembles a function, it can only appear as a table in a query's FROM clause.

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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group
xml
group label
XML 函数
lang
en
layout
table-new
pages
functions-xml.html
prose only
false

Definition PG 18

The xmltable expression produces a table based on an XML value, an XPath filter to extract rows, and a set of column definitions. Although it syntactically resembles a function, it can only appear as a table in a query's FROM clause.

Signatures and overloads

XMLTABLE ( [XMLNAMESPACES ( namespace_uri AS namespace_name [, ...] ), ] row_expression PASSING [BY {REF|VALUE}] document_expression [BY {REF|VALUE}] COLUMNS name { type [PATH column_expression] [DEFAULT default_expression] [NOT NULL | NULL] | FOR ORDINALITY } [, ...] ) → setof record → setof record
The xmltable expression produces a table based on an XML value, an XPath filter to extract rows, and a set of column definitions. Although it syntactically resembles a function, it can only appear as a table in a query's FROM clause.

Compare versions

Complete source facts

documentation revision

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Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:6e716ac179a7223bdef24d7e30d5668e66201e44fd253cd4829e9c9e097e1082

Text language: en · wiki-repair-20261023:6e716ac179a7223bdef24d7e30d5668e66201e44fd253cd4829e9c9e097e1082