Wiki / Functions
xmlagg
The function xmlagg is, unlike the other functions described here, an aggregate function. It concatenates the input values to the aggregate function call, much like xmlconcat does, except that concatenation occurs across rows rather than across expressions in a single row. See Section 9.21 for additional information about aggregate functions.
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
- xml
- group label
- XML 函数
- lang
- en
- layout
- table-new
- pages
- functions-xml.html, functions-aggregate.html
- prose only
- false
Complete source facts
documentation revision
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