-- Both libraries preloaded, each with a custom WAL resource manager on its -- default id: pg_lion's reserved 170 and lion_hooktest's development id 128 -- (RM_EXPERIMENTAL_ID). The collision itself is a startup failure, which -- test/hook-check.sh checks from the server log. \set VERBOSITY terse SET client_min_messages = warning; SET synchronous_commit = on; SELECT rm_id, rm_name FROM pg_get_wal_resource_managers() WHERE rm_name IN ('pg_lion', 'lion_hooktest') ORDER BY rm_id; SHOW pg_lion.rmgr_id; SHOW lion_hooktest.rmgr_id; -- an index written through pg_lion's resource manager, next to the other one CREATE TABLE hk_r (k int, v int); INSERT INTO hk_r SELECT i % 50, i FROM generate_series(1, 20000) i; CREATE INDEX hk_r_k ON hk_r USING lion (k) WITH (wal_mode = rmgr); SELECT lion_index_wal_mode('hk_r_k'); INSERT INTO hk_r SELECT i % 50, i FROM generate_series(20001, 30000) i; DELETE FROM hk_r WHERE v % 5 = 0; VACUUM hk_r; SELECT lion_index_verify('hk_r_k', true); EXPLAIN (COSTS OFF) SELECT count(*) FROM hk_r WHERE k = 7; SELECT count(*) FROM hk_r WHERE k = 7; SET pg_lion.enable_count_pushdown = off; SELECT count(*) FROM hk_r WHERE k = 7; RESET pg_lion.enable_count_pushdown; DROP TABLE hk_r;