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First phase of work on array improvements. ARRAY[x,y,z] constructor

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expressions, ARRAY(sub-SELECT) expressions, some array functions.
Polymorphic functions using ANYARRAY/ANYELEMENT argument and return
types.  Some regression tests in place, documentation is lacking.
Joe Conway, with some kibitzing from Tom Lane.
This commit is contained in:
Tom Lane
2003-04-08 23:20:04 +00:00
parent 6fb5115850
commit 730840c9b6
47 changed files with 2597 additions and 479 deletions
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27
src/backend/nodes/copyfuncs.c
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@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.247 2003/03/20 07:02:08 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.248 2003/04/08 23:20:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -738,10 +738,8 @@ _copyArrayRef(ArrayRef *from)
ArrayRef *newnode = makeNode(ArrayRef);
COPY_SCALAR_FIELD(refrestype);
COPY_SCALAR_FIELD(refattrlength);
COPY_SCALAR_FIELD(refelemlength);
COPY_SCALAR_FIELD(refelembyval);
COPY_SCALAR_FIELD(refelemalign);
COPY_SCALAR_FIELD(refarraytype);
COPY_SCALAR_FIELD(refelemtype);
COPY_NODE_FIELD(refupperindexpr);
COPY_NODE_FIELD(reflowerindexpr);
COPY_NODE_FIELD(refexpr);
@ -919,6 +917,22 @@ _copyCaseWhen(CaseWhen *from)
return newnode;
}
/*
* _copyArrayExpr
*/
static ArrayExpr *
_copyArrayExpr(ArrayExpr *from)
{
ArrayExpr *newnode = makeNode(ArrayExpr);
COPY_SCALAR_FIELD(array_typeid);
COPY_SCALAR_FIELD(element_typeid);
COPY_NODE_FIELD(elements);
COPY_SCALAR_FIELD(ndims);
return newnode;
}
/*
* _copyCoalesceExpr
*/
@ -2537,6 +2551,9 @@ copyObject(void *from)
case T_CaseWhen:
retval = _copyCaseWhen(from);
break;
case T_ArrayExpr:
retval = _copyArrayExpr(from);
break;
case T_CoalesceExpr:
retval = _copyCoalesceExpr(from);
break;