v9-0008-Remove-provider-field-from-pg_locale_t.patch

From 553188c7b4963dc68be23b7070441b8a4a9573db Mon Sep 17 00:00:00 2001
From: Jeff Davis <jeff@j-davis.com>
Date: Mon, 7 Oct 2024 12:51:27 -0700
Subject: [PATCH v9 08/11] Remove provider field from pg_locale_t.

The behavior of pg_locale_t is entirely specified by methods, so a
separate provider field is no longer necessary.
---
 src/backend/utils/adt/pg_locale_builtin.c |  1 -
 src/backend/utils/adt/pg_locale_icu.c     | 11 -----------
 src/backend/utils/adt/pg_locale_libc.c    |  6 ------
 src/include/utils/pg_locale.h             |  1 -
 4 files changed, 19 deletions(-)

diff --git a/src/backend/utils/adt/pg_locale_builtin.c b/src/backend/utils/adt/pg_locale_builtin.c
index 50efcb5e3d3..630adac1bcb 100644
--- a/src/backend/utils/adt/pg_locale_builtin.c
+++ b/src/backend/utils/adt/pg_locale_builtin.c
@@ -189,7 +189,6 @@ create_pg_locale_builtin(Oid collid, MemoryContext context)
 	result = MemoryContextAllocZero(context, sizeof(struct pg_locale_struct));
 
 	result->info.builtin.locale = MemoryContextStrdup(context, locstr);
-	result->provider = COLLPROVIDER_BUILTIN;
 	result->deterministic = true;
 	result->collate_is_c = true;
 	result->ctype_is_c = (strcmp(locstr, "C") == 0);
diff --git a/src/backend/utils/adt/pg_locale_icu.c b/src/backend/utils/adt/pg_locale_icu.c
index 839b905c560..44c9f66d630 100644
--- a/src/backend/utils/adt/pg_locale_icu.c
+++ b/src/backend/utils/adt/pg_locale_icu.c
@@ -255,7 +255,6 @@ create_pg_locale_icu(Oid collid, MemoryContext context)
 	result = MemoryContextAllocZero(context, sizeof(struct pg_locale_struct));
 	result->info.icu.locale = MemoryContextStrdup(context, iculocstr);
 	result->info.icu.ucol = collator;
-	result->provider = COLLPROVIDER_ICU;
 	result->deterministic = deterministic;
 	result->collate_is_c = false;
 	result->ctype_is_c = false;
@@ -512,8 +511,6 @@ strncoll_icu_utf8(const char *arg1, ssize_t len1, const char *arg2, ssize_t len2
 	int			result;
 	UErrorCode	status;
 
-	Assert(locale->provider == COLLPROVIDER_ICU);
-
 	Assert(GetDatabaseEncoding() == PG_UTF8);
 
 	status = U_ZERO_ERROR;
@@ -541,8 +538,6 @@ strnxfrm_icu(char *dest, size_t destsize, const char *src, ssize_t srclen,
 	size_t		uchar_bsize;
 	Size		result_bsize;
 
-	Assert(locale->provider == COLLPROVIDER_ICU);
-
 	init_icu_converter();
 
 	ulen = uchar_length(icu_converter, src, srclen);
@@ -587,8 +582,6 @@ strnxfrm_prefix_icu_utf8(char *dest, size_t destsize,
 	uint32_t	state[2];
 	UErrorCode	status;
 
-	Assert(locale->provider == COLLPROVIDER_ICU);
-
 	Assert(GetDatabaseEncoding() == PG_UTF8);
 
 	uiter_setUTF8(&iter, src, srclen);
@@ -755,8 +748,6 @@ strncoll_icu(const char *arg1, ssize_t len1,
 			   *uchar2;
 	int			result;
 
-	Assert(locale->provider == COLLPROVIDER_ICU);
-
 	/* if encoding is UTF8, use more efficient strncoll_icu_utf8 */
 #ifdef HAVE_UCOL_STRCOLLUTF8
 	Assert(GetDatabaseEncoding() != PG_UTF8);
@@ -805,8 +796,6 @@ strnxfrm_prefix_icu(char *dest, size_t destsize,
 	size_t		uchar_bsize;
 	Size		result_bsize;
 
-	Assert(locale->provider == COLLPROVIDER_ICU);
-
 	/* if encoding is UTF8, use more efficient strnxfrm_prefix_icu_utf8 */
 	Assert(GetDatabaseEncoding() != PG_UTF8);
 
diff --git a/src/backend/utils/adt/pg_locale_libc.c b/src/backend/utils/adt/pg_locale_libc.c
index 38f9164ad98..a789b88432c 100644
--- a/src/backend/utils/adt/pg_locale_libc.c
+++ b/src/backend/utils/adt/pg_locale_libc.c
@@ -475,7 +475,6 @@ create_pg_locale_libc(Oid collid, MemoryContext context)
 	loc = make_libc_collator(collate, ctype);
 
 	result = MemoryContextAllocZero(context, sizeof(struct pg_locale_struct));
-	result->provider = COLLPROVIDER_LIBC;
 	result->deterministic = true;
 	result->collate_is_c = (strcmp(collate, "C") == 0) ||
 		(strcmp(collate, "POSIX") == 0);
@@ -595,8 +594,6 @@ strncoll_libc(const char *arg1, ssize_t len1, const char *arg2, ssize_t len2,
 	const char *arg2n;
 	int			result;
 
-	Assert(locale->provider == COLLPROVIDER_LIBC);
-
 	if (bufsize1 + bufsize2 > TEXTBUFLEN)
 		buf = palloc(bufsize1 + bufsize2);
 
@@ -651,8 +648,6 @@ strnxfrm_libc(char *dest, size_t destsize, const char *src, ssize_t srclen,
 	size_t		bufsize = srclen + 1;
 	size_t		result;
 
-	Assert(locale->provider == COLLPROVIDER_LIBC);
-
 	if (srclen == -1)
 		return strxfrm_l(dest, src, destsize, locale->info.lt);
 
@@ -761,7 +756,6 @@ strncoll_libc_win32_utf8(const char *arg1, ssize_t len1, const char *arg2,
 	int			r;
 	int			result;
 
-	Assert(locale->provider == COLLPROVIDER_LIBC);
 	Assert(GetDatabaseEncoding() == PG_UTF8);
 
 	if (len1 == -1)
diff --git a/src/include/utils/pg_locale.h b/src/include/utils/pg_locale.h
index 7a509596178..1ec8d6a0db7 100644
--- a/src/include/utils/pg_locale.h
+++ b/src/include/utils/pg_locale.h
@@ -147,7 +147,6 @@ struct ctype_methods
  */
 struct pg_locale_struct
 {
-	char		provider;
 	bool		deterministic;
 	bool		collate_is_c;
 	bool		ctype_is_c;
-- 
2.45.2