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https://github.com/timescale/timescaledb.git
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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.
31 lines
654 B
SQL
31 lines
654 B
SQL
\set ON_ERROR_STOP 1
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\set VERBOSITY verbose
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\set SHOW_CONTEXT never
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\o /dev/null
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\ir include/insert_two_partitions.sql
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\o
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\set ECHO ALL
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\c single
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\d+ "_timescaledb_internal".*
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-- Test that renaming hypertable is blocked
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\set ON_ERROR_STOP 0
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ALTER TABLE "testNs" RENAME TO "newname";
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\set ON_ERROR_STOP 1
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-- Test that renaming ordinary table works
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CREATE TABLE renametable (foo int);
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ALTER TABLE "renametable" RENAME TO "newname";
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SELECT * FROM "newname";
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SELECT * FROM _timescaledb_catalog.hypertable;
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DROP TABLE "testNs";
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SELECT * FROM _timescaledb_catalog.hypertable;
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\dt "public".*
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\dt "_timescaledb_catalog".*
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\dt+ "_timescaledb_internal".*
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