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411ae64997
This commit introduces two new functions postgres_fdw_disconnect() and postgres_fdw_disconnect_all(). The former function discards the cached connections to the specified foreign server. The latter discards all the cached connections. If the connection is used in the current transaction, it's not closed and a warning message is emitted. For example, these functions are useful when users want to explicitly close the foreign server connections that are no longer necessary and then to prevent them from eating up the foreign servers connections capacity. Author: Bharath Rupireddy, tweaked a bit by Fujii Masao Reviewed-by: Alexey Kondratov, Zhijie Hou, Zhihong Yu, Fujii Masao Discussion: https://postgr.es/m/CALj2ACVvrp5=AVp2PupEm+nAC8S4buqR3fJMmaCoc7ftT0aD2A@mail.gmail.com
21 lines
626 B
SQL
21 lines
626 B
SQL
/* contrib/postgres_fdw/postgres_fdw--1.0--1.1.sql */
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-- complain if script is sourced in psql, rather than via ALTER EXTENSION
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\echo Use "ALTER EXTENSION postgres_fdw UPDATE TO '1.1'" to load this file. \quit
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CREATE FUNCTION postgres_fdw_get_connections (OUT server_name text,
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OUT valid boolean)
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RETURNS SETOF record
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT PARALLEL RESTRICTED;
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CREATE FUNCTION postgres_fdw_disconnect (text)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT PARALLEL RESTRICTED;
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CREATE FUNCTION postgres_fdw_disconnect_all ()
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT PARALLEL RESTRICTED;
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