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Commit of a *MAJOR* patch from Dan McGuirk <djm@indirect.com>

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Changes:

        * Unique index capability works using the syntax 'create unique
          index'.

        * Duplicate OID's in the system tables are removed.  I put
          little scripts called 'duplicate_oids' and 'find_oid' in
          include/catalog that help to find and remove duplicate OID's.
          I also moved 'unused_oids' from backend/catalog to
          include/catalog, since it has to be in the same directory
          as the include files in order to work.

        * The backend tries converting the name of a function or aggregate
          to all lowercase if the original name given doesn't work (mostly
          for compatibility with ODBC).

        * You can 'SELECT NULL' to your heart's content.

        * I put my _bt_updateitem fix in instead, which uses
          _bt_insertonpg so that even if the new key is so big that
          the page has to be split, everything still works.

        * All literal references to system catalog OID's have been
          replaced with references to define'd constants from the catalog
          header files.

        * I added a couple of node copy functions.  I think this was a
          preliminary attempt to get rules to work.
This commit is contained in:
Marc G. Fournier
1996-11-13 20:56:15 +00:00
parent 0cec8fe26c
commit 07a65b2255
45 changed files with 861 additions and 588 deletions
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44
src/backend/nodes/copyfuncs.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.3 1996/11/08 05:56:35 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.4 1996/11/13 20:48:46 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1407,6 +1407,34 @@ _copySortClause(SortClause *from)
return newnode;
}
static A_Const *
_copyAConst(A_Const *from)
{
A_Const *newnode = makeNode(A_Const);
newnode->val = *((Value *)(copyObject(&(from->val))));
Node_Copy(from, newnode, typename);
return newnode;
}
static TypeName *
_copyTypeName(TypeName *from)
{
TypeName *newnode = makeNode(TypeName);
if(from->name) {
newnode->name = pstrdup(from->name);
} else {
from->name = (char *)0;
}
newnode->setof = from->setof;
Node_Copy(from, newnode, arrayBounds);
newnode->typlen = from->typlen;
return newnode;
}
static Query *
_copyQuery(Query *from)
{
@@ -1414,7 +1442,13 @@ _copyQuery(Query *from)
newnode->commandType = from->commandType;
newnode->resultRelation = from->resultRelation;
newnode->into = from->into;
/* probably should dup this string instead of just pointing */
/* to the old one --djm */
if(from->into) {
newnode->into = pstrdup(from->into);
} else {
newnode->into = (char *)0;
}
newnode->isPortal = from->isPortal;
Node_Copy(from, newnode, rtable);
if (from->utilityStmt && nodeTag(from->utilityStmt) == T_NotifyStmt) {
@@ -1643,6 +1677,12 @@ copyObject(void *from)
case T_SortClause:
retval = _copySortClause(from);
break;
case T_A_Const:
retval = _copyAConst(from);
break;
case T_TypeName:
retval = _copyTypeName(from);
break;
/*
* VALUE NODES