hcq/openGauss-server
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

SMgrRelationHash: calculate hash\match without rnode.node.opt

Browse Source
This commit is contained in:
wuyuechuan
2022-12-08 20:08:47 +08:00
parent ef16c13c16
commit c6b6aab2f1
1 changed files with 21 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
src/gausskernel/storage/smgr/smgr.cpp
View File

@ -180,6 +180,23 @@ void smgrshutdown(int code, Datum arg)
}
}
static uint32 RelFileNodeBackendHashWithoutOpt(const void* key, Size keySize)
{
RelFileNodeBackend relFileNodeBackend = *(const RelFileNodeBackend*)key;
relFileNodeBackend.node.opt = 0;
return tag_hash((const void*)&relFileNodeBackend, keySize);
}
static int RelFileNodeBackendCompareWithoutOpt(const void* left, const void* right, Size keySize)
{
Assert(left != NULL && right != NULL);
Assert(keySize == sizeof(RelFileNodeBackend));
const RelFileNodeBackend* leftRelBackend = (const RelFileNodeBackend*)left;
const RelFileNodeBackend* rightRelBackend = (const RelFileNodeBackend*)right;
/* we just care whether the result is 0 or not */
return RelFileNodeBackendEquals(*leftRelBackend, *rightRelBackend) ? 0 : 1;
}
/*
* smgropen() -- Return an SMgrRelation object, creating it if need be.
*
@ -206,16 +223,17 @@ SMgrRelation smgropen(const RelFileNode& rnode, BackendId backend, int col /* =
securec_check(rc, "", "");
hashCtrl.keysize = sizeof(RelFileNodeBackend);
hashCtrl.entrysize = sizeof(SMgrRelationData);
hashCtrl.hash = tag_hash;
hashCtrl.hash = RelFileNodeBackendHashWithoutOpt;
hashCtrl.match = RelFileNodeBackendCompareWithoutOpt;
if (EnableLocalSysCache()) {
hashCtrl.hcxt = t_thrd.lsc_cxt.lsc->lsc_mydb_memcxt;
t_thrd.lsc_cxt.lsc->SMgrRelationHash = hash_create("smgr relation table", 400,
&hashCtrl, HASH_ELEM | HASH_FUNCTION | HASH_CONTEXT);
&hashCtrl, HASH_ELEM | HASH_FUNCTION | HASH_CONTEXT | HASH_COMPARE);
dlist_init(&t_thrd.lsc_cxt.lsc->unowned_reln);
} else {
hashCtrl.hcxt = u_sess->cache_mem_cxt;
u_sess->storage_cxt.SMgrRelationHash = hash_create("smgr relation table", 400,
&hashCtrl, HASH_ELEM | HASH_FUNCTION | HASH_CONTEXT);
&hashCtrl, HASH_ELEM | HASH_FUNCTION | HASH_CONTEXT | HASH_COMPARE);
dlist_init(&u_sess->storage_cxt.unowned_reln);
}