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information_schema.key_column_usage.position_in_unique_constraint was 

misdocumented as not being implemented.  In reality it has worked since
the release of 8.2.
This commit is contained in:
Tom Lane 2008-11-25 20:47:42 +00:00
parent 6bbef4e538
commit 8a10096440
1 changed files with 8 additions and 6 deletions
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14
doc/src/sgml/information_schema.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/information_schema.sgml,v 1.34 2008/09/08 00:47:40 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/information_schema.sgml,v 1.35 2008/11/25 20:47:42 tgl Exp $ -->
<chapter id="information-schema">
<title>The Information Schema</title>
@ -2192,7 +2192,7 @@ ORDER BY c.ordinal_position;
<entry><type>sql_identifier</type></entry>
<entry>
Name of the database that contains the table that contains the
column that is restricted by some constraint (always the
column that is restricted by this constraint (always the
current database)
</entry>
</row>
@ -2202,7 +2202,7 @@ ORDER BY c.ordinal_position;
<entry><type>sql_identifier</type></entry>
<entry>
Name of the schema that contains the table that contains the
column that is restricted by some constraint
column that is restricted by this constraint
</entry>
</row>
@ -2211,7 +2211,7 @@ ORDER BY c.ordinal_position;
<entry><type>sql_identifier</type></entry>
<entry>
Name of the table that contains the column that is restricted
by some constraint
by this constraint
</entry>
</row>
@ -2219,7 +2219,7 @@ ORDER BY c.ordinal_position;
<entry><literal>column_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>
Name of the column that is restricted by some constraint
Name of the column that is restricted by this constraint
</entry>
</row>
@ -2236,7 +2236,9 @@ ORDER BY c.ordinal_position;
<entry><literal>position_in_unique_constraint</literal></entry>
<entry><type>cardinal_number</type></entry>
<entry>
Not yet implemented
For a foreign-key constraint, ordinal position of the referenced
column within its unique constraint (count starts at 1);
otherwise null
</entry>
</row>
</tbody>