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merger existence read: UNION the id and lk-lookup probes instead of OR-ing them across the hierarchy join — the OR is un-indexable and full-scans the subtype table on every child merge (one scan per relationship-edge write; surfaced by Castleberry onboarding); each UNION arm uses its own index (pk / lk_) and dedup preserves TOO_MANY_LOOKUP_ROWS semantics

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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Satya
2026-07-05 20:52:29 -04:00
parent eae39f92d6
commit d9b4f417f6
2 changed files with 17 additions and 37 deletions
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38
fixtures/merger.json
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@ -1461,17 +1461,7 @@
"success": true,
"sql": [
[
"(SELECT to_jsonb(t1.*) || to_jsonb(t2.*) || to_jsonb(t3.*) || to_jsonb(t4.*)",
"FROM agreego.\"entity\" t1",
"JOIN agreego.\"organization\" t2 ON ",
"JOIN agreego.\"user\" t3 ON ",
"JOIN agreego.\"person\" t4 ON ",
"WHERE",
" t1.id = '{{uuid:data.id}}'",
" OR (\"first_name\" = 'LookupFirst'",
" AND \"last_name\" = 'LookupLast'",
" AND \"date_of_birth\" = '{{timestamp}}'",
" AND \"pronouns\" = 'they/them'))"
"(SELECT to_jsonb(t1.*) || to_jsonb(t2.*) || to_jsonb(t3.*) || to_jsonb(t4.*) FROM agreego.\"entity\" t1 LEFT JOIN agreego.\"organization\" t2 ON t2.id = t1.id LEFT JOIN agreego.\"user\" t3 ON t3.id = t1.id LEFT JOIN agreego.\"person\" t4 ON t4.id = t1.id WHERE t1.id = '{{uuid:data.id}}' UNION SELECT to_jsonb(t1.*) || to_jsonb(t2.*) || to_jsonb(t3.*) || to_jsonb(t4.*) FROM agreego.\"entity\" t1 LEFT JOIN agreego.\"organization\" t2 ON t2.id = t1.id LEFT JOIN agreego.\"user\" t3 ON t3.id = t1.id LEFT JOIN agreego.\"person\" t4 ON t4.id = t1.id WHERE (\"first_name\" = 'LookupFirst' AND \"last_name\" = 'LookupLast' AND \"date_of_birth\" = '{{timestamp}}' AND \"pronouns\" = 'they/them'))"
],
[
"INSERT INTO agreego.\"entity\" (",
@ -1614,17 +1604,7 @@
"success": true,
"sql": [
[
"(SELECT to_jsonb(t1.*) || to_jsonb(t2.*) || to_jsonb(t3.*) || to_jsonb(t4.*)",
"FROM agreego.\"entity\" t1",
"JOIN agreego.\"organization\" t2 ON ",
"JOIN agreego.\"user\" t3 ON ",
"JOIN agreego.\"person\" t4 ON ",
"WHERE",
" t1.id = '{{uuid:data.id}}'",
" OR (\"first_name\" = 'LookupFirst'",
" AND \"last_name\" = 'LookupLast'",
" AND \"date_of_birth\" = '{{timestamp}}'",
" AND \"pronouns\" = 'they/them'))"
"(SELECT to_jsonb(t1.*) || to_jsonb(t2.*) || to_jsonb(t3.*) || to_jsonb(t4.*) FROM agreego.\"entity\" t1 LEFT JOIN agreego.\"organization\" t2 ON t2.id = t1.id LEFT JOIN agreego.\"user\" t3 ON t3.id = t1.id LEFT JOIN agreego.\"person\" t4 ON t4.id = t1.id WHERE t1.id = '{{uuid:data.id}}' UNION SELECT to_jsonb(t1.*) || to_jsonb(t2.*) || to_jsonb(t3.*) || to_jsonb(t4.*) FROM agreego.\"entity\" t1 LEFT JOIN agreego.\"organization\" t2 ON t2.id = t1.id LEFT JOIN agreego.\"user\" t3 ON t3.id = t1.id LEFT JOIN agreego.\"person\" t4 ON t4.id = t1.id WHERE (\"first_name\" = 'LookupFirst' AND \"last_name\" = 'LookupLast' AND \"date_of_birth\" = '{{timestamp}}' AND \"pronouns\" = 'they/them'))"
],
[
"INSERT INTO agreego.\"entity\" (",
@ -2219,12 +2199,7 @@
"success": true,
"sql": [
[
"(SELECT to_jsonb(t1.*) || to_jsonb(t2.*)",
"FROM agreego.\"entity\" t1",
"JOIN agreego.\"order\" t2 ON ",
"WHERE",
" t1.id = 'abc'",
" OR (\"id\" = 'abc'))"
"(SELECT to_jsonb(t1.*) || to_jsonb(t2.*) FROM agreego.\"entity\" t1 LEFT JOIN agreego.\"order\" t2 ON t2.id = t1.id WHERE t1.id = 'abc' UNION SELECT to_jsonb(t1.*) || to_jsonb(t2.*) FROM agreego.\"entity\" t1 LEFT JOIN agreego.\"order\" t2 ON t2.id = t1.id WHERE (\"id\" = 'abc'))"
],
[
"INSERT INTO agreego.\"entity\" (",
@ -3499,12 +3474,7 @@
"success": true,
"sql": [
[
"(SELECT to_jsonb(t1.*) || to_jsonb(t2.*)",
"FROM agreego.\"entity\" t1",
"JOIN agreego.\"invoice\" t2 ON ",
"WHERE",
" t1.id = '{{uuid:data.id}}'",
" OR (\"id\" = '{{uuid:data.id}}'))"
"(SELECT to_jsonb(t1.*) || to_jsonb(t2.*) FROM agreego.\"entity\" t1 LEFT JOIN agreego.\"invoice\" t2 ON t2.id = t1.id WHERE t1.id = '{{uuid:data.id}}' UNION SELECT to_jsonb(t1.*) || to_jsonb(t2.*) FROM agreego.\"entity\" t1 LEFT JOIN agreego.\"invoice\" t2 ON t2.id = t1.id WHERE (\"id\" = '{{uuid:data.id}}'))"
],
[
"INSERT INTO agreego.\"entity\" (",