postgres.git / summary / log / commit / refs

commit    dd4c4eaab724835f4553656efb6451b79ffbb9e1
Author:   Bruce Momjian <bruce@momjian.us>
Date:     Sat Dec 21 17:44:38 2019 +0000
First released in: 13.0, 9.4.26, 9.5.21, 9.6.17, 10.12, 11.7, 12.2

    docs:  clarify handling of column lists in COPY TO/FROM
    
    Previously it was unclear how COPY FROM handled cases where not all
    columns were specified, or if the order didn't match.
    
    Reported-by: pavlo.golub@gmail.com
    
    Discussion: https://postgr.es/m/157487729344.7213.14245726713444755296@wrigleys.postgresql.org
    
    Backpatch-through: 9.4


 doc/src/sgml/ref/copy.sgml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/doc/src/sgml/ref/copy.sgml b/doc/src/sgml/ref/copy.sgml
index 23efb8a15d7..079541be674 100644
--- a/doc/src/sgml/ref/copy.sgml
+++ b/doc/src/sgml/ref/copy.sgml
@@ -61,11 +61,11 @@ COPY { <replaceable class="parameter">table_name</replaceable> [ ( <replaceable
   </para>
 
   <para>
-   If a list of columns is specified, <command>COPY</command> will
-   only copy the data in the specified columns to or from the file.
-   If there are any columns in the table that are not in the column list,
-   <command>COPY FROM</command> will insert the default values for
-   those columns.
+   If a column list is specified, <command>COPY TO</command> copies only
+   the data in the specified columns to the file.  For <command>COPY
+   FROM</command>, each field in the file is inserted, in order, into the
+   specified column.  Table columns not specified in the <command>COPY
+   FROM</command> column list will receive their default values.
   </para>
 
   <para>


[parent: 5e22a111185c]