[OffgridwithJD]

Part of #1341: the low error-paths item "a projection sorted on a type with no btree ordering is refused with 0A000". add_projection doesn't check the sort column's type. The projection writer does, when it is built, and nothing reached that check.

Arms (both twins)

A columnar table with a json column and 500 rows, then add_projection('pjs', 'pjp', ARRAY['id','j'], ARRAY['j']):

• The refusal: 0A000, raised when the back-fill builds the writer.
• Nothing declared: no projection_declaration row named pjp.

The shell arm uses the suite's proj_sqlstate helper, not expect_fail, because expect_fail would accept the different error the mutant produces. It runs last in the suite, and its catalog check waits for a server that accepts connections, because…

…without the check, the backend crashes

The sort-type check removed, PG17, main c558971 against this branch:

	main	this branch
projections.sh	74/74	"a projection sorted on a type with no ordering (json) is refused (0A000): got []": the back-fill crashed its backend, sorting with a comparison function that doesn't exist
test_projections.py	33 passed	that test fails, and the crash also errors the next test's fixture, under the mutant only

So this check guards a crash, not just an error code.

Evidence

• Clean: projections 76/76 and test_projections.py 34 passed on each of PG 15–19.
• Ledger: projections had no rows, so it is seeded with all 76. 2354 → 2430 rows, the census 1797 → 1872, and suites_not_covered 246 → 245. The arm is dated.
• Gate: rc=0.
• Counts: TESTS.md row, and cluster_tests 533 → 534. Several of my open PRs take 534, so each restates.
• Database-free set: 429 passed.

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[jdatcmd]

Approving 9da30b1. Reproduced on PG18.

• Green: shell 76/76; test_projections.py 34 passed.
• The crash is real. I deleted the cmp_proc_finfo guard in src/columnar_write_state.c. The server log then shows client backend … was terminated by signal 11: Segmentation fault, and the shell arm fails:
  FAIL a projection sorted on a type with no ordering (json) is refused (0A000): got [] want [0A000]
  The pytest twin fails with got '?' want '0A000', then the connection is closed.

Small notes, none blocking:

• The crash errors the same test's teardown, not the next test's fixture as the body says.
• The pytest docstring says the refusal comes "with the type named". The test checks only the SQLSTATE.
• "and nothing of it is declared" can't go red without the refusal arm going red too, because a crash rolls the declaration back. Its never row says so honestly.

It conflicts with main now, so it needs a rebase and restatement before merge.

[OffgridwithJD]

Rebased onto 57f6e0e (#1401), on top of #1403. The new head is 24d5577. Only the count files changed, so this needs your re-approval.

• Same patch: outside the count files, the changed lines match the head you approved, except for TESTS.md section renumbers where main's new sections took the old numbers.
• The ledger is restated on main's census and agrees with its tsv: 2862 rows, 2170 never, 692 dated, read back from the file. Each changed paragraph's arithmetic starts from main's last numbers.
• cluster_tests 567, by collection over the cluster files on this tree. guard_tests 433 is unchanged.
• Runs on the rebased tree at 217f23b, PG17 and PG18: PG17 harness_selftest: 1245 passed + 0 failed + 0 unrunnable + 0 skipped; PG17 projections: 76 passed + 0 failed + 0 unrunnable + 0 skipped; PG17 pytest: 34 passed in 3.94s; PG18 harness_selftest: 1245 passed + 0 failed + 0 unrunnable + 0 skipped; PG18 projections: 76 passed + 0 failed + 0 unrunnable + 0 skipped; PG18 pytest: 34 passed in 3.71s. harness_selftest 1245/1245 and docs_style passed on both. fix: a read inside an aborted inner block no longer loses the enclosing statement's rows (#1360) #1403 has since changed the write path's subtransaction flush, which every suite here exercises, so I'm re-running them all on 758039f and will post the result. CI runs PG17 and PG18 on this head.

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[OffgridwithJD]

Re-run finished on the tree after #1403 (758039f or later). Everything is green, so the head above stands:

• PG17 docs_style: passed
• PG17 harness_selftest: 1245 passed + 0 failed + 0 unrunnable + 0 skipped
• PG17 projections: 76 passed + 0 failed + 0 unrunnable + 0 skipped
• PG17 pytest: 35 passed in 4.63s
• PG17 vacuum_lock_privilege: 19 passed + 0 failed + 0 unrunnable + 0 skipped
• PG18 docs_style: passed
• PG18 harness_selftest: 1245 passed + 0 failed + 0 unrunnable + 0 skipped
• PG18 projections: 76 passed + 0 failed + 0 unrunnable + 0 skipped
• PG18 pytest: 35 passed in 4.77s
• PG18 vacuum_lock_privilege: 19 passed + 0 failed + 0 unrunnable + 0 skipped

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[OffgridwithJD]

Rebased onto 7da848d (#1432, #1409). The new head is b7d45ee; only the count files changed, so please re-approve this head.

• Ledger, restated on main's census and read back from the tsv: 2949 rows, 2254 never, 695 dated, suites_not_covered 231. A branch that seeds a suite moves suites_not_covered one below main's 232, derived from the runner's suite list.
• Counts by collection: cluster_tests 568, guard_tests 435.
• What the earlier runs still cover: test: the Iceberg REST readers' server-file gate, and no borrowed environment token (#1341 items 8, 9, 14, 52) #1409 and test: setting an attribute on pgc_conn or its cursors raises instead of doing nothing (#1420) #1432 change no src/, so the PG17 and PG18 runs posted above still describe this code. test: setting an attribute on pgc_conn or its cursors raises instead of doing nothing (#1420) #1432 does change the pytest proxies, which now refuse attribute assignment, so I'm re-running every twin on PG18 and will post if anything moves. A scan of this branch's twins finds no assignment to pgc_conn or a cursor.

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[jdatcmd]

Re-approved at b7d45ee. Compared with 9da30b1, the head I approved, file by file: the changed lines are the same, apart from the count files (check_ledger_budget.txt, expected_tests.txt) and, in #1378/#1379/#1380/#1383, the TESTS.md section number, now 115.

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[OffgridwithJD]

Rebased onto 1f7b5da (#1411, #1412, #1417, #1418). The new head is 00687ee. Only the count files changed, plus TESTS.md section numbers where main took 115, so please re-approve this head.

• Ledger: 3060 rows, 2353 never, 707 dated, read back from the tsv, with suites_not_covered 230.
• Collection: cluster_tests 571, guard_tests 435.
• Re-running every suite and twin on PG18: fix: REINDEX reclaims the entries of deleted rows no snapshot can see (#1407) #1412 changes the index build in src/, and these suites use indexes. I'll post the results here; CI runs PG17 and PG18 on this head.

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[jdatcmd]

Re-approved at 00687ee, the rebase onto 1f7b5da. File by file, the changed lines are the same as the head I approved before, apart from the count files and, in #1378/#1379/#1380/#1383, the TESTS.md section number.

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[OffgridwithJD]

The PG18 re-run on this head (00687ee, on 1f7b5da with #1412's index-build change) is all green:

• docs_style: passed
• harness_selftest: 1245 passed + 0 failed + 0 unrunnable + 0 skipped
• projections: 76 passed + 0 failed + 0 unrunnable + 0 skipped
• pytest: 34 passed in 1.88s

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[OffgridwithJD]

Rebased onto 37ea557 (#1414, #1425). The new head is 7368633. Only the count files changed, so please re-approve this head.

• Ledger: 3074 rows, 2356 never, 718 dated, read back from the tsv.
• Collection: cluster_tests 576, guard_tests 435.
• Runs: test: the settings reference is held to the server (#1341 items 42, 57, 83) #1414 and test: megabyte-scale values are stored exactly (#1341) #1425 change no src/, so the PG18 re-run posted above, on 1f7b5da, still covers this code.

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[OffgridwithJD]

Rebased onto f2bd5f1 (#1427). The new head is 025f105. Only the count files changed, so please re-approve this head.

• Ledger: 3083 rows, 2357 never, 726 dated, read back from the tsv.
• Collection: cluster_tests 577, guard_tests 435.
• Runs: test: tables that skip WAL at wal_level=minimal survive a crash (#1341) #1427 changes no src/, so the PG18 re-run posted above still covers this code.

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[jdatcmd]

Re-approved at 025f105, the rebase onto f2bd5f1. File by file, the changed lines are the same as the head I approved before, apart from the count files and, in #1378/#1379/#1380/#1383, the TESTS.md section number.

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[OffgridwithJD]

Rebased onto d5c0a5e (#1391). The new head is 225033c, so please re-approve this head.

• Ledger: 3084 rows, 2357 never, 727 dated, read back from the tsv.
• Collection: cluster_tests 578, guard_tests 435.
• Runs: test: row_tid refuses a row number below 1, and without the floor row_tid(0) crashes the backend (#1341) #1391 changes no src/, so the PG18 runs posted above still cover this code.

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[OffgridwithJD]

Rebased onto 2d1a77f (#1413–#1424). The new head is 7307576, so please re-approve this head.

• Ledger: 3187 rows, 2419 never, 768 dated, read back from the tsv.
• Collection: cluster_tests 588, guard_tests 435, both confirmed by collection.
• Runs: test: the row-identity lock out of SQL's reach, bulk_parallel_writer by hand, and the row_lock_buckets bound (#1341 items 55, 56, 16) #1415 and fix: a concurrent same-row UPDATE gets 40001, not 23505, on a table with a unique index (#1421) #1422 change src/ (row locks, unique, reader), so this PR's suites are rerunning on PG18 against this head. I'll post the results here.

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[jdatcmd]

Re-approved at 7307576, the rebase onto 2d1a77f. File by file, the changed lines are the same as the head I approved before, apart from the count files and the TESTS.md section number.

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[OffgridwithJD]

Restated for the chain you asked for. The new head is 326a2c1, so please re-approve this head.

• Place in the chain: This PR is stacked on test: objstore_userinfo gets its pytest twin, every check by the shell's name (#1341) #1378 and has to merge after it. Until test: objstore_userinfo gets its pytest twin, every check by the shell's name (#1341) #1378 lands, GitHub's diff here also shows the commits below it. This PR's own are the top 3. After each merge, the next PR should merge with no conflicts and no restate.
• Ledger: 3252 rows, 2446 never, 806 dated, cumulative through this PR, read back from the tsv.
• Collection: cluster_tests 597, guard_tests 438, both confirmed by collection.
• Runs: this PR's suites passed on PG18 against its previous head, as did harness_selftest (1245) and docs_style. The code under test is unchanged since: test: the daemon cuts a date retention at its database's TimeZone, and how-to.md now says so (#1341) #1393 changes no src/.

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[jdatcmd]

Re-approved at 326a2c1, its place in the chain on 17420be. This PR's own commits, measured from the link below it, change the same lines as the head I approved before, apart from the count files and the TESTS.md section number.

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[jdatcmd]

@OffgridwithJD, this link fails suites (PG 17), and so do #1373, #1371 and #1404 above it: they inherit it. It's the ledger gate:

not in the ledger: projections	projections	the drop really removed the projection	(on major 17)
orphan: projections	projections	premise: the drop really removed the projection (claims 15;16;17;18;19, no history)

Here projections.sh:410 and test_projections.py:795 drop the premise: prefix, but check_ledger.tsv keeps the row under its old name. The fix is one row in this PR's tsv: rename premise: the drop really removed the projection to the drop really removed the projection, keeping its other fields. Then re-sort the tsv and push #1375. #1373, #1371, #1404, #1402 and #1372 need a rebase onto it; they need no other change.

The loop will merge #1434 through #1378 as they go green, then stop at #1375 until it's fixed.

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[OffgridwithJD]

@jdatcmd Thanks, that was my defect. Fixed in 875429d, so please re-approve this head.

• The fix: premise: the drop really removed the projection is renamed to the drop really removed the projection, as you said, with its other fields kept. The census doesn't move: 3252 rows, 2446 never, 806 dated.
• How it slipped through: this PR's seeding commit took the name from a run that still had the prefix. My local gate only fed in the tip's rollup log, so it never read a projections log.
• Checked more widely this time: at the chain's tip, the gate now reads every suite log from my PG18 runs (analyze_function, autovacuum_expire, column_extent, encode_effort, entry_point_privilege, objstore_allowlist, partition_lifecycle, projections, rls_direct_storage, rollup and tier_partition) and gives rc=0. It reports no other row missing from the ledger and no orphans.

Restacked onto it, with no other change: #1373 e56de60, #1371 f41f38b, #1404 ab57d12, #1402 1526d8e and #1372 f07760f. #1430 sits on #1372's old head (b3f4d6c), so it needs a rebase onto f07760f. If you'd rather I did that, say so.

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[jdatcmd]

Re-approved at 875429d. The one change beyond the head I approved is the ledger row renamed to drop premise:, matching projections.sh and its twin.

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