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80901b3291
Commit 0da92dc530 improved the logical decoding infrastructure to handle
sequences, and did various changes to related parts (WAL logging etc.).
But it did not include any implementation of the new callbacks added to
OutputPluginCallbacks.
This extends test_decoding with two callbacks to decode sequences. The
decoding of sequences may be disabled using 'include-sequences', a new
option of the output plugin.
Author: Tomas Vondra, Cary Huang
Reviewed-by: Peter Eisentraut, Hannu Krosing, Andres Freund
Discussion: https://postgr.es/m/d045f3c2-6cfb-06d3-5540-e63c320df8bc@enterprisedb.com
Discussion: https://postgr.es/m/1710ed7e13b.cd7177461430746.3372264562543607781@highgo.ca
46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
# Force usage of ondisk decoding snapshots to test that code path.
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setup
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{
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DROP TABLE IF EXISTS do_write;
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CREATE TABLE do_write(id serial primary key);
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}
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teardown
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{
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DROP TABLE do_write;
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SELECT 'stop' FROM pg_drop_replication_slot('isolation_slot');
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}
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session "s1"
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setup { SET synchronous_commit=on; }
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step "s1init" {SELECT 'init' FROM pg_create_logical_replication_slot('isolation_slot', 'test_decoding');}
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step "s1start" {SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', 'false', 'include-sequences', 'false');}
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step "s1insert" { INSERT INTO do_write DEFAULT VALUES; }
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step "s1checkpoint" { CHECKPOINT; }
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step "s1alter" { ALTER TABLE do_write ADD COLUMN addedbys1 int; }
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session "s2"
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setup { SET synchronous_commit=on; }
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step "s2b" { BEGIN; }
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step "s2txid" { SELECT pg_current_xact_id() IS NULL; }
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step "s2alter" { ALTER TABLE do_write ADD COLUMN addedbys2 int; }
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step "s2c" { COMMIT; }
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session "s3"
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setup { SET synchronous_commit=on; }
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step "s3b" { BEGIN; }
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step "s3txid" { SELECT pg_current_xact_id() IS NULL; }
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step "s3c" { COMMIT; }
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# Force usage of ondisk snapshot by starting and not finishing a
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# transaction with an assigned xid after consistency has been
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# reached. In combination with a checkpoint forcing a snapshot to be
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# written and a new restart point computed that'll lead to the usage
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# of the snapshot.
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permutation "s2b" "s2txid" "s1init" "s3b" "s3txid" "s2alter" "s2c" "s2b" "s2txid" "s3c" "s2c" "s1insert" "s1checkpoint" "s1start" "s1insert" "s1alter" "s1insert" "s1start"
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