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Creates the SubLink structure, and the Query->hasSubLink field,

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with supporting code.

Creates SubLink node in gram.y.

psql.c patch for newatttypmod field.
This commit is contained in:
Bruce Momjian
1998-01-17 04:53:46 +00:00
parent c65ea0e040
commit b37bc65f44
10 changed files with 205 additions and 113 deletions
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45
src/backend/nodes/readfuncs.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.18 1998/01/15 18:59:31 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.19 1998/01/17 04:53:11 momjian Exp $
*
* NOTES
* Most of the read functions for plan nodes are tested. (In fact, they
@ -156,6 +156,10 @@ _readQuery()
token = lsptok(NULL, &length); /* get hasAggs */
local_node->hasAggs = (token[0] == 't') ? true : false;
token = lsptok(NULL, &length); /* skip the :hasSubLinks */
token = lsptok(NULL, &length); /* get hasSubLinks */
local_node->hasSubLinks = (token[0] == 't') ? true : false;
token = lsptok(NULL, &length); /* skip :unionClause */
local_node->unionClause = nodeRead(true);
@ -1151,6 +1155,41 @@ _readAggreg()
return (local_node);
}
/* ----------------
* _readSubLink
*
* SubLink is a subclass of Node
* ----------------
*/
static SubLink *
_readSubLink()
{
SubLink *local_node;
char *token;
int length;
local_node = makeNode(SubLink);
token = lsptok(NULL, &length); /* eat :subLinkType */
token = lsptok(NULL, &length); /* get subLinkType */
local_node->subLinkType = atoi(token);
token = lsptok(NULL, &length); /* eat :useor */
token = lsptok(NULL, &length); /* get useor */
local_node->useor = (token[0] == 't') ? true : false;
token = lsptok(NULL, &length); /* eat :lefthand */
local_node->lefthand = nodeRead(true); /* now read it */
token = lsptok(NULL, &length); /* eat :oper */
local_node->oper = nodeRead(true); /* now read it */
token = lsptok(NULL, &length); /* eat :subselect */
local_node->subselect = nodeRead(true); /* now read it */
return (local_node);
}
/*
* Stuff from execnodes.h
*/
@ -1971,6 +2010,10 @@ parsePlanString(void)
{
return_value = _readAggreg();
}
else if (!strncmp(token, "SUBLINK", 6))
{
return_value = _readSubLink();
}
else if (!strncmp(token, "AGG", 3))
{
return_value = _readAgg();