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Check for more Unicode functions during upgrade.

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When checking for expression indexes that may be affected by a Unicode
update during upgrade, check for a few more functions. Specifically,
check for documented regexp functions, as well as the new CASEFOLD()
function.

Also, fully-qualify references to pg_catalog.text and
pg_catalog.regtype.

Discussion: https://postgr.es/m/399b656a3abb0c9283538a040f72199c0601525c.camel@j-davis.com
Backpatch-through: 18
This commit is contained in:
Jeff Davis
2025-08-26 22:55:14 -07:00
parent 85b380162c
commit ef5b87b970
1 changed files with 9 additions and 4 deletions
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13
src/bin/pg_upgrade/check.c
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@@ -1971,14 +1971,19 @@ check_for_unicode_update(ClusterInfo *cluster)
" SELECT oper.oid, oper.oprcode, collid FROM pg_operator oper, collations " " SELECT oper.oid, oper.oprcode, collid FROM pg_operator oper, collations "
" WHERE oprname IN ('~', '~*', '!~', '!~*', '~~*', '!~~*') AND " " WHERE oprname IN ('~', '~*', '!~', '!~*', '~~*', '!~~*') AND "
" oprnamespace='pg_catalog'::regnamespace AND " " oprnamespace='pg_catalog'::regnamespace AND "
" oprright='text'::regtype " " oprright='pg_catalog.text'::pg_catalog.regtype "
"), " "), "
/* functions that use the input collation for character semantics */ /* functions that use the input collation for character semantics */
"coll_functions(procid, collid) AS ( " "coll_functions(procid, collid) AS ( "
" SELECT proc.oid, collid FROM pg_proc proc, collations " " SELECT proc.oid, collid FROM pg_proc proc, collations "
" WHERE proname IN ('lower','initcap','upper') AND " " WHERE pronamespace='pg_catalog'::regnamespace AND "
" pronamespace='pg_catalog'::regnamespace AND " " ((proname IN ('lower','initcap','upper','casefold') AND "
" proargtypes[0] = 'text'::regtype " " pronargs = 1 AND "
" proargtypes[0] = 'pg_catalog.text'::pg_catalog.regtype) OR "
" (proname = 'substring' AND pronargs = 2 AND "
" proargtypes[0] = 'pg_catalog.text'::pg_catalog.regtype AND "
" proargtypes[1] = 'pg_catalog.text'::pg_catalog.regtype) OR "
" proname LIKE 'regexp_%') "
/* include functions behind the operators listed above */ /* include functions behind the operators listed above */
" UNION " " UNION "
" SELECT procid, collid FROM coll_operators " " SELECT procid, collid FROM coll_operators "