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Add result_types column to pg_prepared_statements view

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Containing the types of the columns returned by the prepared
statement.

Prompted by question from IRC user mlvzk.

Author: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Discussion: https://www.postgresql.org/message-id/flat/871qwpo7te.fsf@wibble.ilmari.org
This commit is contained in:
Peter Eisentraut
2022-07-05 07:21:40 +02:00
parent eb64ceac7e
commit 84ad713cf8
7 changed files with 74 additions and 52 deletions
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12
doc/src/sgml/catalogs.sgml
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@ -11502,6 +11502,18 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>result_types</structfield> <type>regtype[]</type>
</para>
<para>
The types of the columns returned by the prepared statement in the
form of an array of <type>regtype</type>. The OID corresponding
to an element of this array can be obtained by casting the
<type>regtype</type> value to <type>oid</type>.
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>from_sql</structfield> <type>bool</type>