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authorBruce Momjian <bruce@momjian.us>2014-04-22 16:06:37 -0400
committerBruce Momjian <bruce@momjian.us>2014-04-22 16:06:37 -0400
commit7ec73783d88a743799b0c262f1235f772497fb1d (patch)
treec59084f67d8b53d2d1e26894fdd16241b7411521 /doc/src
parent4a5d55ec2b711e13438a32d119a809a22ced410b (diff)
downloadpostgresql-7ec73783d88a743799b0c262f1235f772497fb1d.tar.gz
postgresql-7ec73783d88a743799b0c262f1235f772497fb1d.zip
copy: update docs for FORCE_NULL and FORCE_NOT_NULL combination
Also update regression tests Patch by Michael Paquier
Diffstat (limited to 'doc/src')
-rw-r--r--doc/src/sgml/ref/copy.sgml7
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/copy.sgml b/doc/src/sgml/ref/copy.sgml
index 0544c68bbc0..b100f8bdf79 100644
--- a/doc/src/sgml/ref/copy.sgml
+++ b/doc/src/sgml/ref/copy.sgml
@@ -487,6 +487,13 @@ COPY <replaceable class="parameter">count</replaceable>
<command>VACUUM</command> to recover the wasted space.
</para>
+ <para>
+ <literal>FORCE_NULL</> and <literal>FORCE_NOT_NULL</> can be used
+ simultaneously on the same column. This has as result to convert quoted
+ null strings to null values and to convert unquoted null strings to
+ empty strings.
+ </para>
+
</refsect1>
<refsect1>