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Commit e36e936

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remove redundant initializations
Reported-by: Ranier Vilela Discussion: https://postgr.es/m/CAEudQAo1+AcGppxDSg8k+zF4+Kv+eJyqzEDdbpDg58-=MQcerQ@mail.gmail.com Author: Ranier Vilela Backpatch-through: master
1 parent 844c05a commit e36e936

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5 files changed

+7
-6
lines changed

5 files changed

+7
-6
lines changed

src/backend/access/gist/gistxlog.c

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -405,7 +405,6 @@ gistRedoPageReuse(XLogReaderState *record)
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* logged value is very old, so that XID wrap-around already happened
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* on it, there can't be any snapshots that still see it.
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*/
408-
nextXid = ReadNextFullTransactionId();
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diff = U64FromFullTransactionId(nextXid) -
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U64FromFullTransactionId(latestRemovedFullXid);
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if (diff < MaxTransactionId / 2)

src/backend/catalog/heap.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3436,7 +3436,7 @@ List *
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heap_truncate_find_FKs(List *relationIds)
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{
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List *result = NIL;
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List *oids = list_copy(relationIds);
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List *oids;
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List *parent_cons;
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ListCell *cell;
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ScanKeyData key;

src/backend/storage/smgr/md.c

Lines changed: 4 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -734,9 +734,11 @@ mdwrite(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum,
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BlockNumber
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mdnblocks(SMgrRelation reln, ForkNumber forknum)
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{
737-
MdfdVec *v = mdopenfork(reln, forknum, EXTENSION_FAIL);
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MdfdVec *v;
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BlockNumber nblocks;
739-
BlockNumber segno = 0;
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BlockNumber segno;
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741+
mdopenfork(reln, forknum, EXTENSION_FAIL);
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/* mdopen has opened the first segment */
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Assert(reln->md_num_open_segs[forknum] > 0);

src/backend/utils/adt/json.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -990,7 +990,7 @@ catenate_stringinfo_string(StringInfo buffer, const char *addon)
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Datum
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json_build_object(PG_FUNCTION_ARGS)
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{
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int nargs = PG_NARGS();
993+
int nargs;
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int i;
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const char *sep = "";
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StringInfo result;

src/backend/utils/mmgr/mcxt.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -476,7 +476,7 @@ MemoryContextMemAllocated(MemoryContext context, bool recurse)
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477477
if (recurse)
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{
479-
MemoryContext child = context->firstchild;
479+
MemoryContext child;
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for (child = context->firstchild;
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child != NULL;

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