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9108ddad15
This change fixes the following: * Refactor the code for setting the default data node for a chunk. The `set_chunk_default_data_node()` API function now takes a `regclass`/`oid` instead of separate schema + table names and returns `true` when a new data node is set and `false` if called with a data node that is already the default. Like before, exceptions are thrown on errors. It also does proper permissions checks. The related code has been moved from `data_node.c` to `chunk.c` since this is an operation on a chunk, and the code now also lives in the `tsl` directory since this is non-trivial logic that should fall under the TSL license. * When setting the default data node on a chunk (failing over to another data node), it is now verified that the new data node actually has a replica of the chunk and that the corresponding foreign server belongs to the "right" foreign data wrapper. * Error messages and permissions handling have been tweaked.
8 lines
363 B
SQL
8 lines
363 B
SQL
-- This file and its contents are licensed under the Apache License 2.0.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-APACHE for a copy of the license.
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-- Check if a data node is up
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CREATE FUNCTION _timescaledb_internal.ping_data_node(node_name NAME) RETURNS BOOLEAN
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AS '@MODULE_PATHNAME@', 'ts_data_node_ping' LANGUAGE C VOLATILE;
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