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3c1e9cc4ce
This patch refactors the insert path to use insert triggers instead of a temporary copy table. The copy table previously served as an optimization for big batches where the cost of inserting tuple-by-tuple into chunks was amortized by inserting all tuples for a specific chunk in one insert. However, to avoid deadlocks the tuples also had to inserted in a specific chunk order, requiring adding an index to the copy table. With trigger insertion, tuples are instead collected over a batch into a sorting state, which is sorted in an "after" trigger. This removes the overhead of the copy table and index. It also provides a fast-path for single-tuple batches that avoids doing sorting altogether.
3 lines
178 B
SQL
3 lines
178 B
SQL
CREATE OR REPLACE FUNCTION _timescaledb_catalog.get_partition_for_key(text, int) RETURNS smallint
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AS '$libdir/timescaledb', 'get_partition_for_key' LANGUAGE C IMMUTABLE STRICT;
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