mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-07-18 19:31:08 +02:00
de97072e3c
containing a volatile function), rather than only on 'Var = Var' clauses as before. This makes it practical to do flatten_join_alias_vars at the start of planning, which in turn eliminates a bunch of klugery inside the planner to deal with alias vars. As a free side effect, we now detect implied equality of non-Var expressions; for example in SELECT ... WHERE a.x = b.y and b.y = 42 we will deduce a.x = 42 and use that as a restriction qual on a. Also, we can remove the restriction introduced 12/5/02 to prevent pullup of subqueries whose targetlists contain sublinks. Still TODO: make statistical estimation routines in selfuncs.c and costsize.c smarter about expressions that are more complex than plain Vars. The need for this is considerably greater now that we have to be able to estimate the suitability of merge and hash join techniques on such expressions.
1942 lines
39 KiB
C
1942 lines
39 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* equalfuncs.c
|
|
* Equality functions to compare node trees.
|
|
*
|
|
* NOTE: we currently support comparing all node types found in parse
|
|
* trees. We do not support comparing executor state trees; there
|
|
* is no need for that, and no point in maintaining all the code that
|
|
* would be needed. We also do not support comparing Path trees, mainly
|
|
* because the circular linkages between RelOptInfo and Path nodes can't
|
|
* be handled easily in a simple depth-first traversal.
|
|
*
|
|
* Currently, in fact, equal() doesn't know how to compare Plan trees
|
|
* either. This might need to be fixed someday.
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* IDENTIFICATION
|
|
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.180 2003/01/15 19:35:37 tgl Exp $
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include "postgres.h"
|
|
|
|
#include "nodes/params.h"
|
|
#include "nodes/parsenodes.h"
|
|
#include "nodes/relation.h"
|
|
#include "utils/datum.h"
|
|
|
|
|
|
/*
|
|
* Macros to simplify comparison of different kinds of fields. Use these
|
|
* wherever possible to reduce the chance for silly typos. Note that these
|
|
* hard-wire the convention that the local variables in an Equal routine are
|
|
* named 'a' and 'b'.
|
|
*/
|
|
|
|
/* Compare a simple scalar field (int, float, bool, enum, etc) */
|
|
#define COMPARE_SCALAR_FIELD(fldname) \
|
|
do { \
|
|
if (a->fldname != b->fldname) \
|
|
return false; \
|
|
} while (0)
|
|
|
|
/* Compare a field that is a pointer to some kind of Node or Node tree */
|
|
#define COMPARE_NODE_FIELD(fldname) \
|
|
do { \
|
|
if (!equal(a->fldname, b->fldname)) \
|
|
return false; \
|
|
} while (0)
|
|
|
|
/* Compare a field that is a pointer to a list of integers */
|
|
#define COMPARE_INTLIST_FIELD(fldname) \
|
|
do { \
|
|
if (!equali(a->fldname, b->fldname)) \
|
|
return false; \
|
|
} while (0)
|
|
|
|
/* Compare a field that is a pointer to a C string, or perhaps NULL */
|
|
#define COMPARE_STRING_FIELD(fldname) \
|
|
do { \
|
|
if (!equalstr(a->fldname, b->fldname)) \
|
|
return false; \
|
|
} while (0)
|
|
|
|
/* Macro for comparing string fields that might be NULL */
|
|
#define equalstr(a, b) \
|
|
(((a) != NULL && (b) != NULL) ? (strcmp(a, b) == 0) : (a) == (b))
|
|
|
|
/* Compare a field that is a pointer to a simple palloc'd object of size sz */
|
|
#define COMPARE_POINTER_FIELD(fldname, sz) \
|
|
do { \
|
|
if (memcmp(a->fldname, b->fldname, (sz)) != 0) \
|
|
return false; \
|
|
} while (0)
|
|
|
|
|
|
/*
|
|
* Stuff from primnodes.h
|
|
*/
|
|
|
|
static bool
|
|
_equalResdom(Resdom *a, Resdom *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(resno);
|
|
COMPARE_SCALAR_FIELD(restype);
|
|
COMPARE_SCALAR_FIELD(restypmod);
|
|
COMPARE_STRING_FIELD(resname);
|
|
COMPARE_SCALAR_FIELD(ressortgroupref);
|
|
COMPARE_SCALAR_FIELD(reskey);
|
|
COMPARE_SCALAR_FIELD(reskeyop);
|
|
COMPARE_SCALAR_FIELD(resjunk);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAlias(Alias *a, Alias *b)
|
|
{
|
|
COMPARE_STRING_FIELD(aliasname);
|
|
COMPARE_NODE_FIELD(colnames);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRangeVar(RangeVar *a, RangeVar *b)
|
|
{
|
|
COMPARE_STRING_FIELD(catalogname);
|
|
COMPARE_STRING_FIELD(schemaname);
|
|
COMPARE_STRING_FIELD(relname);
|
|
COMPARE_SCALAR_FIELD(inhOpt);
|
|
COMPARE_SCALAR_FIELD(istemp);
|
|
COMPARE_NODE_FIELD(alias);
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* We don't need an _equalExpr because Expr is an abstract supertype which
|
|
* should never actually get instantiated. Also, since it has no common
|
|
* fields except NodeTag, there's no need for a helper routine to factor
|
|
* out comparing the common fields...
|
|
*/
|
|
|
|
static bool
|
|
_equalVar(Var *a, Var *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(varno);
|
|
COMPARE_SCALAR_FIELD(varattno);
|
|
COMPARE_SCALAR_FIELD(vartype);
|
|
COMPARE_SCALAR_FIELD(vartypmod);
|
|
COMPARE_SCALAR_FIELD(varlevelsup);
|
|
COMPARE_SCALAR_FIELD(varnoold);
|
|
COMPARE_SCALAR_FIELD(varoattno);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalConst(Const *a, Const *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(consttype);
|
|
COMPARE_SCALAR_FIELD(constlen);
|
|
COMPARE_SCALAR_FIELD(constisnull);
|
|
COMPARE_SCALAR_FIELD(constbyval);
|
|
|
|
/*
|
|
* We treat all NULL constants of the same type as equal. Someday this
|
|
* might need to change? But datumIsEqual doesn't work on nulls,
|
|
* so...
|
|
*/
|
|
if (a->constisnull)
|
|
return true;
|
|
return datumIsEqual(a->constvalue, b->constvalue,
|
|
a->constbyval, a->constlen);
|
|
}
|
|
|
|
static bool
|
|
_equalParam(Param *a, Param *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(paramkind);
|
|
COMPARE_SCALAR_FIELD(paramtype);
|
|
|
|
switch (a->paramkind)
|
|
{
|
|
case PARAM_NAMED:
|
|
COMPARE_STRING_FIELD(paramname);
|
|
break;
|
|
case PARAM_NUM:
|
|
case PARAM_EXEC:
|
|
COMPARE_SCALAR_FIELD(paramid);
|
|
break;
|
|
default:
|
|
elog(ERROR, "_equalParam: Invalid paramkind value: %d",
|
|
a->paramkind);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAggref(Aggref *a, Aggref *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(aggfnoid);
|
|
COMPARE_SCALAR_FIELD(aggtype);
|
|
COMPARE_NODE_FIELD(target);
|
|
COMPARE_SCALAR_FIELD(aggstar);
|
|
COMPARE_SCALAR_FIELD(aggdistinct);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalArrayRef(ArrayRef *a, ArrayRef *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(refrestype);
|
|
COMPARE_SCALAR_FIELD(refattrlength);
|
|
COMPARE_SCALAR_FIELD(refelemlength);
|
|
COMPARE_SCALAR_FIELD(refelembyval);
|
|
COMPARE_SCALAR_FIELD(refelemalign);
|
|
COMPARE_NODE_FIELD(refupperindexpr);
|
|
COMPARE_NODE_FIELD(reflowerindexpr);
|
|
COMPARE_NODE_FIELD(refexpr);
|
|
COMPARE_NODE_FIELD(refassgnexpr);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalFuncExpr(FuncExpr *a, FuncExpr *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(funcid);
|
|
COMPARE_SCALAR_FIELD(funcresulttype);
|
|
COMPARE_SCALAR_FIELD(funcretset);
|
|
/*
|
|
* Special-case COERCE_DONTCARE, so that pathkeys can build coercion
|
|
* nodes that are equal() to both explicit and implicit coercions.
|
|
*/
|
|
if (a->funcformat != b->funcformat &&
|
|
a->funcformat != COERCE_DONTCARE &&
|
|
b->funcformat != COERCE_DONTCARE)
|
|
return false;
|
|
|
|
COMPARE_NODE_FIELD(args);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalOpExpr(OpExpr *a, OpExpr *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(opno);
|
|
/*
|
|
* Special-case opfuncid: it is allowable for it to differ if one
|
|
* node contains zero and the other doesn't. This just means that the
|
|
* one node isn't as far along in the parse/plan pipeline and hasn't
|
|
* had the opfuncid cache filled yet.
|
|
*/
|
|
if (a->opfuncid != b->opfuncid &&
|
|
a->opfuncid != 0 &&
|
|
b->opfuncid != 0)
|
|
return false;
|
|
|
|
COMPARE_SCALAR_FIELD(opresulttype);
|
|
COMPARE_SCALAR_FIELD(opretset);
|
|
COMPARE_NODE_FIELD(args);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDistinctExpr(DistinctExpr *a, DistinctExpr *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(opno);
|
|
/*
|
|
* Special-case opfuncid: it is allowable for it to differ if one
|
|
* node contains zero and the other doesn't. This just means that the
|
|
* one node isn't as far along in the parse/plan pipeline and hasn't
|
|
* had the opfuncid cache filled yet.
|
|
*/
|
|
if (a->opfuncid != b->opfuncid &&
|
|
a->opfuncid != 0 &&
|
|
b->opfuncid != 0)
|
|
return false;
|
|
|
|
COMPARE_SCALAR_FIELD(opresulttype);
|
|
COMPARE_SCALAR_FIELD(opretset);
|
|
COMPARE_NODE_FIELD(args);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalBoolExpr(BoolExpr *a, BoolExpr *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(boolop);
|
|
COMPARE_NODE_FIELD(args);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalSubLink(SubLink *a, SubLink *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(subLinkType);
|
|
COMPARE_SCALAR_FIELD(useOr);
|
|
COMPARE_NODE_FIELD(lefthand);
|
|
COMPARE_NODE_FIELD(operName);
|
|
COMPARE_INTLIST_FIELD(operOids);
|
|
COMPARE_NODE_FIELD(subselect);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalSubPlan(SubPlan *a, SubPlan *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(subLinkType);
|
|
COMPARE_SCALAR_FIELD(useOr);
|
|
COMPARE_NODE_FIELD(exprs);
|
|
COMPARE_INTLIST_FIELD(paramIds);
|
|
/* should compare plans, but have to settle for comparing plan IDs */
|
|
COMPARE_SCALAR_FIELD(plan_id);
|
|
COMPARE_NODE_FIELD(rtable);
|
|
COMPARE_SCALAR_FIELD(useHashTable);
|
|
COMPARE_SCALAR_FIELD(unknownEqFalse);
|
|
COMPARE_INTLIST_FIELD(setParam);
|
|
COMPARE_INTLIST_FIELD(parParam);
|
|
COMPARE_NODE_FIELD(args);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalFieldSelect(FieldSelect *a, FieldSelect *b)
|
|
{
|
|
COMPARE_NODE_FIELD(arg);
|
|
COMPARE_SCALAR_FIELD(fieldnum);
|
|
COMPARE_SCALAR_FIELD(resulttype);
|
|
COMPARE_SCALAR_FIELD(resulttypmod);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRelabelType(RelabelType *a, RelabelType *b)
|
|
{
|
|
COMPARE_NODE_FIELD(arg);
|
|
COMPARE_SCALAR_FIELD(resulttype);
|
|
COMPARE_SCALAR_FIELD(resulttypmod);
|
|
/*
|
|
* Special-case COERCE_DONTCARE, so that pathkeys can build coercion
|
|
* nodes that are equal() to both explicit and implicit coercions.
|
|
*/
|
|
if (a->relabelformat != b->relabelformat &&
|
|
a->relabelformat != COERCE_DONTCARE &&
|
|
b->relabelformat != COERCE_DONTCARE)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCaseExpr(CaseExpr *a, CaseExpr *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(casetype);
|
|
COMPARE_NODE_FIELD(arg);
|
|
COMPARE_NODE_FIELD(args);
|
|
COMPARE_NODE_FIELD(defresult);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCaseWhen(CaseWhen *a, CaseWhen *b)
|
|
{
|
|
COMPARE_NODE_FIELD(expr);
|
|
COMPARE_NODE_FIELD(result);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalNullTest(NullTest *a, NullTest *b)
|
|
{
|
|
COMPARE_NODE_FIELD(arg);
|
|
COMPARE_SCALAR_FIELD(nulltesttype);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalBooleanTest(BooleanTest *a, BooleanTest *b)
|
|
{
|
|
COMPARE_NODE_FIELD(arg);
|
|
COMPARE_SCALAR_FIELD(booltesttype);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalConstraintTest(ConstraintTest *a, ConstraintTest *b)
|
|
{
|
|
COMPARE_NODE_FIELD(arg);
|
|
COMPARE_SCALAR_FIELD(testtype);
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_STRING_FIELD(domname);
|
|
COMPARE_NODE_FIELD(check_expr);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalConstraintTestValue(ConstraintTestValue *a, ConstraintTestValue *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(typeId);
|
|
COMPARE_SCALAR_FIELD(typeMod);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalTargetEntry(TargetEntry *a, TargetEntry *b)
|
|
{
|
|
COMPARE_NODE_FIELD(resdom);
|
|
COMPARE_NODE_FIELD(expr);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRangeTblRef(RangeTblRef *a, RangeTblRef *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(rtindex);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalJoinExpr(JoinExpr *a, JoinExpr *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(jointype);
|
|
COMPARE_SCALAR_FIELD(isNatural);
|
|
COMPARE_NODE_FIELD(larg);
|
|
COMPARE_NODE_FIELD(rarg);
|
|
COMPARE_NODE_FIELD(using);
|
|
COMPARE_NODE_FIELD(quals);
|
|
COMPARE_NODE_FIELD(alias);
|
|
COMPARE_SCALAR_FIELD(rtindex);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalFromExpr(FromExpr *a, FromExpr *b)
|
|
{
|
|
COMPARE_NODE_FIELD(fromlist);
|
|
COMPARE_NODE_FIELD(quals);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
* Stuff from relation.h
|
|
*/
|
|
|
|
static bool
|
|
_equalPathKeyItem(PathKeyItem *a, PathKeyItem *b)
|
|
{
|
|
COMPARE_NODE_FIELD(key);
|
|
COMPARE_SCALAR_FIELD(sortop);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRestrictInfo(RestrictInfo *a, RestrictInfo *b)
|
|
{
|
|
COMPARE_NODE_FIELD(clause);
|
|
COMPARE_SCALAR_FIELD(ispusheddown);
|
|
/*
|
|
* We ignore subclauseindices, eval_cost, this_selec, left/right_relids,
|
|
* left/right_pathkey, and left/right_bucketsize, since they may not be
|
|
* set yet, and should be derivable from the clause anyway. Probably it's
|
|
* not really necessary to compare any of these remaining fields ...
|
|
*/
|
|
COMPARE_SCALAR_FIELD(mergejoinoperator);
|
|
COMPARE_SCALAR_FIELD(left_sortop);
|
|
COMPARE_SCALAR_FIELD(right_sortop);
|
|
COMPARE_SCALAR_FIELD(hashjoinoperator);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalJoinInfo(JoinInfo *a, JoinInfo *b)
|
|
{
|
|
COMPARE_INTLIST_FIELD(unjoined_relids);
|
|
COMPARE_NODE_FIELD(jinfo_restrictinfo);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
* Stuff from parsenodes.h
|
|
*/
|
|
|
|
static bool
|
|
_equalQuery(Query *a, Query *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(commandType);
|
|
COMPARE_SCALAR_FIELD(querySource);
|
|
COMPARE_NODE_FIELD(utilityStmt);
|
|
COMPARE_SCALAR_FIELD(resultRelation);
|
|
COMPARE_NODE_FIELD(into);
|
|
COMPARE_SCALAR_FIELD(isPortal);
|
|
COMPARE_SCALAR_FIELD(isBinary);
|
|
COMPARE_SCALAR_FIELD(hasAggs);
|
|
COMPARE_SCALAR_FIELD(hasSubLinks);
|
|
COMPARE_NODE_FIELD(rtable);
|
|
COMPARE_NODE_FIELD(jointree);
|
|
COMPARE_INTLIST_FIELD(rowMarks);
|
|
COMPARE_NODE_FIELD(targetList);
|
|
COMPARE_NODE_FIELD(groupClause);
|
|
COMPARE_NODE_FIELD(havingQual);
|
|
COMPARE_NODE_FIELD(distinctClause);
|
|
COMPARE_NODE_FIELD(sortClause);
|
|
COMPARE_NODE_FIELD(limitOffset);
|
|
COMPARE_NODE_FIELD(limitCount);
|
|
COMPARE_NODE_FIELD(setOperations);
|
|
COMPARE_INTLIST_FIELD(resultRelations);
|
|
|
|
/*
|
|
* We do not check the internal-to-the-planner fields: base_rel_list,
|
|
* other_rel_list, join_rel_list, equi_key_list, query_pathkeys,
|
|
* hasJoinRTEs. They might not be set yet, and in any case they should
|
|
* be derivable from the other fields.
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalInsertStmt(InsertStmt *a, InsertStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_NODE_FIELD(cols);
|
|
COMPARE_NODE_FIELD(targetList);
|
|
COMPARE_NODE_FIELD(selectStmt);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDeleteStmt(DeleteStmt *a, DeleteStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_NODE_FIELD(whereClause);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalUpdateStmt(UpdateStmt *a, UpdateStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_NODE_FIELD(targetList);
|
|
COMPARE_NODE_FIELD(whereClause);
|
|
COMPARE_NODE_FIELD(fromClause);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalSelectStmt(SelectStmt *a, SelectStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(distinctClause);
|
|
COMPARE_NODE_FIELD(into);
|
|
COMPARE_NODE_FIELD(intoColNames);
|
|
COMPARE_NODE_FIELD(targetList);
|
|
COMPARE_NODE_FIELD(fromClause);
|
|
COMPARE_NODE_FIELD(whereClause);
|
|
COMPARE_NODE_FIELD(groupClause);
|
|
COMPARE_NODE_FIELD(havingClause);
|
|
COMPARE_NODE_FIELD(sortClause);
|
|
COMPARE_STRING_FIELD(portalname);
|
|
COMPARE_SCALAR_FIELD(binary);
|
|
COMPARE_NODE_FIELD(limitOffset);
|
|
COMPARE_NODE_FIELD(limitCount);
|
|
COMPARE_NODE_FIELD(forUpdate);
|
|
COMPARE_SCALAR_FIELD(op);
|
|
COMPARE_SCALAR_FIELD(all);
|
|
COMPARE_NODE_FIELD(larg);
|
|
COMPARE_NODE_FIELD(rarg);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalSetOperationStmt(SetOperationStmt *a, SetOperationStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(op);
|
|
COMPARE_SCALAR_FIELD(all);
|
|
COMPARE_NODE_FIELD(larg);
|
|
COMPARE_NODE_FIELD(rarg);
|
|
COMPARE_INTLIST_FIELD(colTypes);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAlterTableStmt(AlterTableStmt *a, AlterTableStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(subtype);
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(def);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAlterDomainStmt(AlterDomainStmt *a, AlterDomainStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(subtype);
|
|
COMPARE_NODE_FIELD(typename);
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(def);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalGrantStmt(GrantStmt *a, GrantStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(is_grant);
|
|
COMPARE_SCALAR_FIELD(objtype);
|
|
COMPARE_NODE_FIELD(objects);
|
|
COMPARE_INTLIST_FIELD(privileges);
|
|
COMPARE_NODE_FIELD(grantees);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalPrivGrantee(PrivGrantee *a, PrivGrantee *b)
|
|
{
|
|
COMPARE_STRING_FIELD(username);
|
|
COMPARE_STRING_FIELD(groupname);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalFuncWithArgs(FuncWithArgs *a, FuncWithArgs *b)
|
|
{
|
|
COMPARE_NODE_FIELD(funcname);
|
|
COMPARE_NODE_FIELD(funcargs);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalInsertDefault(InsertDefault *a, InsertDefault *b)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalClosePortalStmt(ClosePortalStmt *a, ClosePortalStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(portalname);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalClusterStmt(ClusterStmt *a, ClusterStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_STRING_FIELD(indexname);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCopyStmt(CopyStmt *a, CopyStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_NODE_FIELD(attlist);
|
|
COMPARE_SCALAR_FIELD(is_from);
|
|
COMPARE_STRING_FIELD(filename);
|
|
COMPARE_NODE_FIELD(options);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateStmt(CreateStmt *a, CreateStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_NODE_FIELD(tableElts);
|
|
COMPARE_NODE_FIELD(inhRelations);
|
|
COMPARE_NODE_FIELD(constraints);
|
|
COMPARE_SCALAR_FIELD(hasoids);
|
|
COMPARE_SCALAR_FIELD(oncommit);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDefineStmt(DefineStmt *a, DefineStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(defType);
|
|
COMPARE_NODE_FIELD(defnames);
|
|
COMPARE_NODE_FIELD(definition);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDropStmt(DropStmt *a, DropStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(objects);
|
|
COMPARE_SCALAR_FIELD(removeType);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalTruncateStmt(TruncateStmt *a, TruncateStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCommentStmt(CommentStmt *a, CommentStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(objtype);
|
|
COMPARE_NODE_FIELD(objname);
|
|
COMPARE_NODE_FIELD(objargs);
|
|
COMPARE_STRING_FIELD(comment);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalFetchStmt(FetchStmt *a, FetchStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(direction);
|
|
COMPARE_SCALAR_FIELD(howMany);
|
|
COMPARE_STRING_FIELD(portalname);
|
|
COMPARE_SCALAR_FIELD(ismove);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalIndexStmt(IndexStmt *a, IndexStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(idxname);
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_STRING_FIELD(accessMethod);
|
|
COMPARE_NODE_FIELD(indexParams);
|
|
COMPARE_NODE_FIELD(whereClause);
|
|
COMPARE_NODE_FIELD(rangetable);
|
|
COMPARE_SCALAR_FIELD(unique);
|
|
COMPARE_SCALAR_FIELD(primary);
|
|
COMPARE_SCALAR_FIELD(isconstraint);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateFunctionStmt(CreateFunctionStmt *a, CreateFunctionStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(replace);
|
|
COMPARE_NODE_FIELD(funcname);
|
|
COMPARE_NODE_FIELD(argTypes);
|
|
COMPARE_NODE_FIELD(returnType);
|
|
COMPARE_NODE_FIELD(options);
|
|
COMPARE_NODE_FIELD(withClause);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRemoveAggrStmt(RemoveAggrStmt *a, RemoveAggrStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(aggname);
|
|
COMPARE_NODE_FIELD(aggtype);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRemoveFuncStmt(RemoveFuncStmt *a, RemoveFuncStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(funcname);
|
|
COMPARE_NODE_FIELD(args);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRemoveOperStmt(RemoveOperStmt *a, RemoveOperStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(opname);
|
|
COMPARE_NODE_FIELD(args);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRemoveOpClassStmt(RemoveOpClassStmt *a, RemoveOpClassStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(opclassname);
|
|
COMPARE_STRING_FIELD(amname);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRenameStmt(RenameStmt *a, RenameStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_STRING_FIELD(oldname);
|
|
COMPARE_STRING_FIELD(newname);
|
|
COMPARE_SCALAR_FIELD(renameType);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRuleStmt(RuleStmt *a, RuleStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_STRING_FIELD(rulename);
|
|
COMPARE_NODE_FIELD(whereClause);
|
|
COMPARE_SCALAR_FIELD(event);
|
|
COMPARE_SCALAR_FIELD(instead);
|
|
COMPARE_NODE_FIELD(actions);
|
|
COMPARE_SCALAR_FIELD(replace);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalNotifyStmt(NotifyStmt *a, NotifyStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalListenStmt(ListenStmt *a, ListenStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalUnlistenStmt(UnlistenStmt *a, UnlistenStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalTransactionStmt(TransactionStmt *a, TransactionStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(command);
|
|
COMPARE_NODE_FIELD(options);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCompositeTypeStmt(CompositeTypeStmt *a, CompositeTypeStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(typevar);
|
|
COMPARE_NODE_FIELD(coldeflist);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalViewStmt(ViewStmt *a, ViewStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(view);
|
|
COMPARE_NODE_FIELD(aliases);
|
|
COMPARE_NODE_FIELD(query);
|
|
COMPARE_SCALAR_FIELD(replace);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalLoadStmt(LoadStmt *a, LoadStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(filename);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateDomainStmt(CreateDomainStmt *a, CreateDomainStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(domainname);
|
|
COMPARE_NODE_FIELD(typename);
|
|
COMPARE_NODE_FIELD(constraints);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateOpClassStmt(CreateOpClassStmt *a, CreateOpClassStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(opclassname);
|
|
COMPARE_STRING_FIELD(amname);
|
|
COMPARE_NODE_FIELD(datatype);
|
|
COMPARE_NODE_FIELD(items);
|
|
COMPARE_SCALAR_FIELD(isDefault);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateOpClassItem(CreateOpClassItem *a, CreateOpClassItem *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(itemtype);
|
|
COMPARE_NODE_FIELD(name);
|
|
COMPARE_NODE_FIELD(args);
|
|
COMPARE_SCALAR_FIELD(number);
|
|
COMPARE_SCALAR_FIELD(recheck);
|
|
COMPARE_NODE_FIELD(storedtype);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreatedbStmt(CreatedbStmt *a, CreatedbStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(dbname);
|
|
COMPARE_NODE_FIELD(options);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAlterDatabaseSetStmt(AlterDatabaseSetStmt *a, AlterDatabaseSetStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(dbname);
|
|
COMPARE_STRING_FIELD(variable);
|
|
COMPARE_NODE_FIELD(value);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDropdbStmt(DropdbStmt *a, DropdbStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(dbname);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalVacuumStmt(VacuumStmt *a, VacuumStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(vacuum);
|
|
COMPARE_SCALAR_FIELD(full);
|
|
COMPARE_SCALAR_FIELD(analyze);
|
|
COMPARE_SCALAR_FIELD(freeze);
|
|
COMPARE_SCALAR_FIELD(verbose);
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_NODE_FIELD(va_cols);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalExplainStmt(ExplainStmt *a, ExplainStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(query);
|
|
COMPARE_SCALAR_FIELD(verbose);
|
|
COMPARE_SCALAR_FIELD(analyze);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateSeqStmt(CreateSeqStmt *a, CreateSeqStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(sequence);
|
|
COMPARE_NODE_FIELD(options);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalVariableSetStmt(VariableSetStmt *a, VariableSetStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(args);
|
|
COMPARE_SCALAR_FIELD(is_local);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalVariableShowStmt(VariableShowStmt *a, VariableShowStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalVariableResetStmt(VariableResetStmt *a, VariableResetStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateTrigStmt(CreateTrigStmt *a, CreateTrigStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(trigname);
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_NODE_FIELD(funcname);
|
|
COMPARE_NODE_FIELD(args);
|
|
COMPARE_SCALAR_FIELD(before);
|
|
COMPARE_SCALAR_FIELD(row);
|
|
if (strcmp(a->actions, b->actions) != 0) /* in-line string field */
|
|
return false;
|
|
COMPARE_SCALAR_FIELD(isconstraint);
|
|
COMPARE_SCALAR_FIELD(deferrable);
|
|
COMPARE_SCALAR_FIELD(initdeferred);
|
|
COMPARE_NODE_FIELD(constrrel);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDropPropertyStmt(DropPropertyStmt *a, DropPropertyStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_STRING_FIELD(property);
|
|
COMPARE_SCALAR_FIELD(removeType);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreatePLangStmt(CreatePLangStmt *a, CreatePLangStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(plname);
|
|
COMPARE_NODE_FIELD(plhandler);
|
|
COMPARE_NODE_FIELD(plvalidator);
|
|
COMPARE_SCALAR_FIELD(pltrusted);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDropPLangStmt(DropPLangStmt *a, DropPLangStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(plname);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateUserStmt(CreateUserStmt *a, CreateUserStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(user);
|
|
COMPARE_NODE_FIELD(options);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAlterUserStmt(AlterUserStmt *a, AlterUserStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(user);
|
|
COMPARE_NODE_FIELD(options);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAlterUserSetStmt(AlterUserSetStmt *a, AlterUserSetStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(user);
|
|
COMPARE_STRING_FIELD(variable);
|
|
COMPARE_NODE_FIELD(value);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDropUserStmt(DropUserStmt *a, DropUserStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(users);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalLockStmt(LockStmt *a, LockStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(relations);
|
|
COMPARE_SCALAR_FIELD(mode);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalConstraintsSetStmt(ConstraintsSetStmt *a, ConstraintsSetStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(constraints);
|
|
COMPARE_SCALAR_FIELD(deferred);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateGroupStmt(CreateGroupStmt *a, CreateGroupStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(options);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAlterGroupStmt(AlterGroupStmt *a, AlterGroupStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_SCALAR_FIELD(action);
|
|
COMPARE_NODE_FIELD(listUsers);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDropGroupStmt(DropGroupStmt *a, DropGroupStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalReindexStmt(ReindexStmt *a, ReindexStmt *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(reindexType);
|
|
COMPARE_NODE_FIELD(relation);
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_SCALAR_FIELD(force);
|
|
COMPARE_SCALAR_FIELD(all);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateSchemaStmt(CreateSchemaStmt *a, CreateSchemaStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(schemaname);
|
|
COMPARE_STRING_FIELD(authid);
|
|
COMPARE_NODE_FIELD(schemaElts);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateConversionStmt(CreateConversionStmt *a, CreateConversionStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(conversion_name);
|
|
COMPARE_STRING_FIELD(for_encoding_name);
|
|
COMPARE_STRING_FIELD(to_encoding_name);
|
|
COMPARE_NODE_FIELD(func_name);
|
|
COMPARE_SCALAR_FIELD(def);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalCreateCastStmt(CreateCastStmt *a, CreateCastStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(sourcetype);
|
|
COMPARE_NODE_FIELD(targettype);
|
|
COMPARE_NODE_FIELD(func);
|
|
COMPARE_SCALAR_FIELD(context);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDropCastStmt(DropCastStmt *a, DropCastStmt *b)
|
|
{
|
|
COMPARE_NODE_FIELD(sourcetype);
|
|
COMPARE_NODE_FIELD(targettype);
|
|
COMPARE_SCALAR_FIELD(behavior);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalPrepareStmt(PrepareStmt *a, PrepareStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(argtypes);
|
|
COMPARE_INTLIST_FIELD(argtype_oids);
|
|
COMPARE_NODE_FIELD(query);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalExecuteStmt(ExecuteStmt *a, ExecuteStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(into);
|
|
COMPARE_NODE_FIELD(params);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDeallocateStmt(DeallocateStmt *a, DeallocateStmt *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
* stuff from parsenodes.h
|
|
*/
|
|
|
|
static bool
|
|
_equalAExpr(A_Expr *a, A_Expr *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(oper);
|
|
COMPARE_NODE_FIELD(name);
|
|
COMPARE_NODE_FIELD(lexpr);
|
|
COMPARE_NODE_FIELD(rexpr);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalColumnRef(ColumnRef *a, ColumnRef *b)
|
|
{
|
|
COMPARE_NODE_FIELD(fields);
|
|
COMPARE_NODE_FIELD(indirection);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalParamRef(ParamRef *a, ParamRef *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(number);
|
|
COMPARE_NODE_FIELD(fields);
|
|
COMPARE_NODE_FIELD(indirection);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAConst(A_Const *a, A_Const *b)
|
|
{
|
|
if (!equal(&a->val, &b->val)) /* hack for in-line Value field */
|
|
return false;
|
|
COMPARE_NODE_FIELD(typename);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalFuncCall(FuncCall *a, FuncCall *b)
|
|
{
|
|
COMPARE_NODE_FIELD(funcname);
|
|
COMPARE_NODE_FIELD(args);
|
|
COMPARE_SCALAR_FIELD(agg_star);
|
|
COMPARE_SCALAR_FIELD(agg_distinct);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalAIndices(A_Indices *a, A_Indices *b)
|
|
{
|
|
COMPARE_NODE_FIELD(lidx);
|
|
COMPARE_NODE_FIELD(uidx);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalExprFieldSelect(ExprFieldSelect *a, ExprFieldSelect *b)
|
|
{
|
|
COMPARE_NODE_FIELD(arg);
|
|
COMPARE_NODE_FIELD(fields);
|
|
COMPARE_NODE_FIELD(indirection);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalResTarget(ResTarget *a, ResTarget *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(indirection);
|
|
COMPARE_NODE_FIELD(val);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalTypeName(TypeName *a, TypeName *b)
|
|
{
|
|
COMPARE_NODE_FIELD(names);
|
|
COMPARE_SCALAR_FIELD(typeid);
|
|
COMPARE_SCALAR_FIELD(timezone);
|
|
COMPARE_SCALAR_FIELD(setof);
|
|
COMPARE_SCALAR_FIELD(pct_type);
|
|
COMPARE_SCALAR_FIELD(typmod);
|
|
COMPARE_NODE_FIELD(arrayBounds);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalTypeCast(TypeCast *a, TypeCast *b)
|
|
{
|
|
COMPARE_NODE_FIELD(arg);
|
|
COMPARE_NODE_FIELD(typename);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalSortGroupBy(SortGroupBy *a, SortGroupBy *b)
|
|
{
|
|
COMPARE_NODE_FIELD(useOp);
|
|
COMPARE_NODE_FIELD(node);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRangeSubselect(RangeSubselect *a, RangeSubselect *b)
|
|
{
|
|
COMPARE_NODE_FIELD(subquery);
|
|
COMPARE_NODE_FIELD(alias);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRangeFunction(RangeFunction *a, RangeFunction *b)
|
|
{
|
|
COMPARE_NODE_FIELD(funccallnode);
|
|
COMPARE_NODE_FIELD(alias);
|
|
COMPARE_NODE_FIELD(coldeflist);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalIndexElem(IndexElem *a, IndexElem *b)
|
|
{
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(funcname);
|
|
COMPARE_NODE_FIELD(args);
|
|
COMPARE_NODE_FIELD(opclass);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalColumnDef(ColumnDef *a, ColumnDef *b)
|
|
{
|
|
COMPARE_STRING_FIELD(colname);
|
|
COMPARE_NODE_FIELD(typename);
|
|
COMPARE_SCALAR_FIELD(inhcount);
|
|
COMPARE_SCALAR_FIELD(is_local);
|
|
COMPARE_SCALAR_FIELD(is_not_null);
|
|
COMPARE_NODE_FIELD(raw_default);
|
|
COMPARE_STRING_FIELD(cooked_default);
|
|
COMPARE_NODE_FIELD(constraints);
|
|
COMPARE_NODE_FIELD(support);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalConstraint(Constraint *a, Constraint *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(contype);
|
|
COMPARE_STRING_FIELD(name);
|
|
COMPARE_NODE_FIELD(raw_expr);
|
|
COMPARE_STRING_FIELD(cooked_expr);
|
|
COMPARE_NODE_FIELD(keys);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalDefElem(DefElem *a, DefElem *b)
|
|
{
|
|
COMPARE_STRING_FIELD(defname);
|
|
COMPARE_NODE_FIELD(arg);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalRangeTblEntry(RangeTblEntry *a, RangeTblEntry *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(rtekind);
|
|
COMPARE_SCALAR_FIELD(relid);
|
|
COMPARE_NODE_FIELD(subquery);
|
|
COMPARE_NODE_FIELD(funcexpr);
|
|
COMPARE_NODE_FIELD(coldeflist);
|
|
COMPARE_SCALAR_FIELD(jointype);
|
|
COMPARE_NODE_FIELD(joinaliasvars);
|
|
COMPARE_NODE_FIELD(alias);
|
|
COMPARE_NODE_FIELD(eref);
|
|
COMPARE_SCALAR_FIELD(inh);
|
|
COMPARE_SCALAR_FIELD(inFromCl);
|
|
COMPARE_SCALAR_FIELD(checkForRead);
|
|
COMPARE_SCALAR_FIELD(checkForWrite);
|
|
COMPARE_SCALAR_FIELD(checkAsUser);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalSortClause(SortClause *a, SortClause *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(tleSortGroupRef);
|
|
COMPARE_SCALAR_FIELD(sortop);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
_equalFkConstraint(FkConstraint *a, FkConstraint *b)
|
|
{
|
|
COMPARE_STRING_FIELD(constr_name);
|
|
COMPARE_NODE_FIELD(pktable);
|
|
COMPARE_NODE_FIELD(fk_attrs);
|
|
COMPARE_NODE_FIELD(pk_attrs);
|
|
COMPARE_SCALAR_FIELD(fk_matchtype);
|
|
COMPARE_SCALAR_FIELD(fk_upd_action);
|
|
COMPARE_SCALAR_FIELD(fk_del_action);
|
|
COMPARE_SCALAR_FIELD(deferrable);
|
|
COMPARE_SCALAR_FIELD(initdeferred);
|
|
COMPARE_SCALAR_FIELD(skip_validation);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
* Stuff from pg_list.h
|
|
*/
|
|
|
|
static bool
|
|
_equalValue(Value *a, Value *b)
|
|
{
|
|
COMPARE_SCALAR_FIELD(type);
|
|
|
|
switch (a->type)
|
|
{
|
|
case T_Integer:
|
|
COMPARE_SCALAR_FIELD(val.ival);
|
|
break;
|
|
case T_Float:
|
|
case T_String:
|
|
case T_BitString:
|
|
COMPARE_STRING_FIELD(val.str);
|
|
break;
|
|
case T_Null:
|
|
/* nothing to do */
|
|
break;
|
|
default:
|
|
elog(ERROR, "_equalValue: unknown node type %d", a->type);
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* equal
|
|
* returns whether two nodes are equal
|
|
*/
|
|
bool
|
|
equal(void *a, void *b)
|
|
{
|
|
bool retval = false;
|
|
|
|
if (a == b)
|
|
return true;
|
|
|
|
/*
|
|
* note that a!=b, so only one of them can be NULL
|
|
*/
|
|
if (a == NULL || b == NULL)
|
|
return false;
|
|
|
|
/*
|
|
* are they the same type of nodes?
|
|
*/
|
|
if (nodeTag(a) != nodeTag(b))
|
|
return false;
|
|
|
|
switch (nodeTag(a))
|
|
{
|
|
/*
|
|
* PRIMITIVE NODES
|
|
*/
|
|
case T_Resdom:
|
|
retval = _equalResdom(a, b);
|
|
break;
|
|
case T_Alias:
|
|
retval = _equalAlias(a, b);
|
|
break;
|
|
case T_RangeVar:
|
|
retval = _equalRangeVar(a, b);
|
|
break;
|
|
case T_Var:
|
|
retval = _equalVar(a, b);
|
|
break;
|
|
case T_Const:
|
|
retval = _equalConst(a, b);
|
|
break;
|
|
case T_Param:
|
|
retval = _equalParam(a, b);
|
|
break;
|
|
case T_Aggref:
|
|
retval = _equalAggref(a, b);
|
|
break;
|
|
case T_ArrayRef:
|
|
retval = _equalArrayRef(a, b);
|
|
break;
|
|
case T_FuncExpr:
|
|
retval = _equalFuncExpr(a, b);
|
|
break;
|
|
case T_OpExpr:
|
|
retval = _equalOpExpr(a, b);
|
|
break;
|
|
case T_DistinctExpr:
|
|
retval = _equalDistinctExpr(a, b);
|
|
break;
|
|
case T_BoolExpr:
|
|
retval = _equalBoolExpr(a, b);
|
|
break;
|
|
case T_SubLink:
|
|
retval = _equalSubLink(a, b);
|
|
break;
|
|
case T_SubPlan:
|
|
retval = _equalSubPlan(a, b);
|
|
break;
|
|
case T_FieldSelect:
|
|
retval = _equalFieldSelect(a, b);
|
|
break;
|
|
case T_RelabelType:
|
|
retval = _equalRelabelType(a, b);
|
|
break;
|
|
case T_CaseExpr:
|
|
retval = _equalCaseExpr(a, b);
|
|
break;
|
|
case T_CaseWhen:
|
|
retval = _equalCaseWhen(a, b);
|
|
break;
|
|
case T_NullTest:
|
|
retval = _equalNullTest(a, b);
|
|
break;
|
|
case T_BooleanTest:
|
|
retval = _equalBooleanTest(a, b);
|
|
break;
|
|
case T_ConstraintTest:
|
|
retval = _equalConstraintTest(a, b);
|
|
break;
|
|
case T_ConstraintTestValue:
|
|
retval = _equalConstraintTestValue(a, b);
|
|
break;
|
|
case T_TargetEntry:
|
|
retval = _equalTargetEntry(a, b);
|
|
break;
|
|
case T_RangeTblRef:
|
|
retval = _equalRangeTblRef(a, b);
|
|
break;
|
|
case T_FromExpr:
|
|
retval = _equalFromExpr(a, b);
|
|
break;
|
|
case T_JoinExpr:
|
|
retval = _equalJoinExpr(a, b);
|
|
break;
|
|
|
|
/*
|
|
* RELATION NODES
|
|
*/
|
|
case T_PathKeyItem:
|
|
retval = _equalPathKeyItem(a, b);
|
|
break;
|
|
case T_RestrictInfo:
|
|
retval = _equalRestrictInfo(a, b);
|
|
break;
|
|
case T_JoinInfo:
|
|
retval = _equalJoinInfo(a, b);
|
|
break;
|
|
|
|
/*
|
|
* LIST NODES
|
|
*/
|
|
case T_List:
|
|
{
|
|
List *la = (List *) a;
|
|
List *lb = (List *) b;
|
|
List *l;
|
|
|
|
/*
|
|
* Try to reject by length check before we grovel through
|
|
* all the elements...
|
|
*/
|
|
if (length(la) != length(lb))
|
|
return false;
|
|
foreach(l, la)
|
|
{
|
|
if (!equal(lfirst(l), lfirst(lb)))
|
|
return false;
|
|
lb = lnext(lb);
|
|
}
|
|
retval = true;
|
|
}
|
|
break;
|
|
|
|
case T_Integer:
|
|
case T_Float:
|
|
case T_String:
|
|
case T_BitString:
|
|
case T_Null:
|
|
retval = _equalValue(a, b);
|
|
break;
|
|
|
|
/*
|
|
* PARSE NODES
|
|
*/
|
|
case T_Query:
|
|
retval = _equalQuery(a, b);
|
|
break;
|
|
case T_InsertStmt:
|
|
retval = _equalInsertStmt(a, b);
|
|
break;
|
|
case T_DeleteStmt:
|
|
retval = _equalDeleteStmt(a, b);
|
|
break;
|
|
case T_UpdateStmt:
|
|
retval = _equalUpdateStmt(a, b);
|
|
break;
|
|
case T_SelectStmt:
|
|
retval = _equalSelectStmt(a, b);
|
|
break;
|
|
case T_SetOperationStmt:
|
|
retval = _equalSetOperationStmt(a, b);
|
|
break;
|
|
case T_AlterTableStmt:
|
|
retval = _equalAlterTableStmt(a, b);
|
|
break;
|
|
case T_AlterDomainStmt:
|
|
retval = _equalAlterDomainStmt(a, b);
|
|
break;
|
|
case T_GrantStmt:
|
|
retval = _equalGrantStmt(a, b);
|
|
break;
|
|
case T_ClosePortalStmt:
|
|
retval = _equalClosePortalStmt(a, b);
|
|
break;
|
|
case T_ClusterStmt:
|
|
retval = _equalClusterStmt(a, b);
|
|
break;
|
|
case T_CopyStmt:
|
|
retval = _equalCopyStmt(a, b);
|
|
break;
|
|
case T_CreateStmt:
|
|
retval = _equalCreateStmt(a, b);
|
|
break;
|
|
case T_DefineStmt:
|
|
retval = _equalDefineStmt(a, b);
|
|
break;
|
|
case T_DropStmt:
|
|
retval = _equalDropStmt(a, b);
|
|
break;
|
|
case T_TruncateStmt:
|
|
retval = _equalTruncateStmt(a, b);
|
|
break;
|
|
case T_CommentStmt:
|
|
retval = _equalCommentStmt(a, b);
|
|
break;
|
|
case T_FetchStmt:
|
|
retval = _equalFetchStmt(a, b);
|
|
break;
|
|
case T_IndexStmt:
|
|
retval = _equalIndexStmt(a, b);
|
|
break;
|
|
case T_CreateFunctionStmt:
|
|
retval = _equalCreateFunctionStmt(a, b);
|
|
break;
|
|
case T_RemoveAggrStmt:
|
|
retval = _equalRemoveAggrStmt(a, b);
|
|
break;
|
|
case T_RemoveFuncStmt:
|
|
retval = _equalRemoveFuncStmt(a, b);
|
|
break;
|
|
case T_RemoveOperStmt:
|
|
retval = _equalRemoveOperStmt(a, b);
|
|
break;
|
|
case T_RemoveOpClassStmt:
|
|
retval = _equalRemoveOpClassStmt(a, b);
|
|
break;
|
|
case T_RenameStmt:
|
|
retval = _equalRenameStmt(a, b);
|
|
break;
|
|
case T_RuleStmt:
|
|
retval = _equalRuleStmt(a, b);
|
|
break;
|
|
case T_NotifyStmt:
|
|
retval = _equalNotifyStmt(a, b);
|
|
break;
|
|
case T_ListenStmt:
|
|
retval = _equalListenStmt(a, b);
|
|
break;
|
|
case T_UnlistenStmt:
|
|
retval = _equalUnlistenStmt(a, b);
|
|
break;
|
|
case T_TransactionStmt:
|
|
retval = _equalTransactionStmt(a, b);
|
|
break;
|
|
case T_CompositeTypeStmt:
|
|
retval = _equalCompositeTypeStmt(a, b);
|
|
break;
|
|
case T_ViewStmt:
|
|
retval = _equalViewStmt(a, b);
|
|
break;
|
|
case T_LoadStmt:
|
|
retval = _equalLoadStmt(a, b);
|
|
break;
|
|
case T_CreateDomainStmt:
|
|
retval = _equalCreateDomainStmt(a, b);
|
|
break;
|
|
case T_CreateOpClassStmt:
|
|
retval = _equalCreateOpClassStmt(a, b);
|
|
break;
|
|
case T_CreateOpClassItem:
|
|
retval = _equalCreateOpClassItem(a, b);
|
|
break;
|
|
case T_CreatedbStmt:
|
|
retval = _equalCreatedbStmt(a, b);
|
|
break;
|
|
case T_AlterDatabaseSetStmt:
|
|
retval = _equalAlterDatabaseSetStmt(a, b);
|
|
break;
|
|
case T_DropdbStmt:
|
|
retval = _equalDropdbStmt(a, b);
|
|
break;
|
|
case T_VacuumStmt:
|
|
retval = _equalVacuumStmt(a, b);
|
|
break;
|
|
case T_ExplainStmt:
|
|
retval = _equalExplainStmt(a, b);
|
|
break;
|
|
case T_CreateSeqStmt:
|
|
retval = _equalCreateSeqStmt(a, b);
|
|
break;
|
|
case T_VariableSetStmt:
|
|
retval = _equalVariableSetStmt(a, b);
|
|
break;
|
|
case T_VariableShowStmt:
|
|
retval = _equalVariableShowStmt(a, b);
|
|
break;
|
|
case T_VariableResetStmt:
|
|
retval = _equalVariableResetStmt(a, b);
|
|
break;
|
|
case T_CreateTrigStmt:
|
|
retval = _equalCreateTrigStmt(a, b);
|
|
break;
|
|
case T_DropPropertyStmt:
|
|
retval = _equalDropPropertyStmt(a, b);
|
|
break;
|
|
case T_CreatePLangStmt:
|
|
retval = _equalCreatePLangStmt(a, b);
|
|
break;
|
|
case T_DropPLangStmt:
|
|
retval = _equalDropPLangStmt(a, b);
|
|
break;
|
|
case T_CreateUserStmt:
|
|
retval = _equalCreateUserStmt(a, b);
|
|
break;
|
|
case T_AlterUserStmt:
|
|
retval = _equalAlterUserStmt(a, b);
|
|
break;
|
|
case T_AlterUserSetStmt:
|
|
retval = _equalAlterUserSetStmt(a, b);
|
|
break;
|
|
case T_DropUserStmt:
|
|
retval = _equalDropUserStmt(a, b);
|
|
break;
|
|
case T_LockStmt:
|
|
retval = _equalLockStmt(a, b);
|
|
break;
|
|
case T_ConstraintsSetStmt:
|
|
retval = _equalConstraintsSetStmt(a, b);
|
|
break;
|
|
case T_CreateGroupStmt:
|
|
retval = _equalCreateGroupStmt(a, b);
|
|
break;
|
|
case T_AlterGroupStmt:
|
|
retval = _equalAlterGroupStmt(a, b);
|
|
break;
|
|
case T_DropGroupStmt:
|
|
retval = _equalDropGroupStmt(a, b);
|
|
break;
|
|
case T_ReindexStmt:
|
|
retval = _equalReindexStmt(a, b);
|
|
break;
|
|
case T_CheckPointStmt:
|
|
retval = true;
|
|
break;
|
|
case T_CreateSchemaStmt:
|
|
retval = _equalCreateSchemaStmt(a, b);
|
|
break;
|
|
case T_CreateConversionStmt:
|
|
retval = _equalCreateConversionStmt(a, b);
|
|
break;
|
|
case T_CreateCastStmt:
|
|
retval = _equalCreateCastStmt(a, b);
|
|
break;
|
|
case T_DropCastStmt:
|
|
retval = _equalDropCastStmt(a, b);
|
|
break;
|
|
case T_PrepareStmt:
|
|
retval = _equalPrepareStmt(a, b);
|
|
break;
|
|
case T_ExecuteStmt:
|
|
retval = _equalExecuteStmt(a, b);
|
|
break;
|
|
case T_DeallocateStmt:
|
|
retval = _equalDeallocateStmt(a, b);
|
|
break;
|
|
|
|
case T_A_Expr:
|
|
retval = _equalAExpr(a, b);
|
|
break;
|
|
case T_ColumnRef:
|
|
retval = _equalColumnRef(a, b);
|
|
break;
|
|
case T_ParamRef:
|
|
retval = _equalParamRef(a, b);
|
|
break;
|
|
case T_A_Const:
|
|
retval = _equalAConst(a, b);
|
|
break;
|
|
case T_FuncCall:
|
|
retval = _equalFuncCall(a, b);
|
|
break;
|
|
case T_A_Indices:
|
|
retval = _equalAIndices(a, b);
|
|
break;
|
|
case T_ExprFieldSelect:
|
|
retval = _equalExprFieldSelect(a, b);
|
|
break;
|
|
case T_ResTarget:
|
|
retval = _equalResTarget(a, b);
|
|
break;
|
|
case T_TypeCast:
|
|
retval = _equalTypeCast(a, b);
|
|
break;
|
|
case T_SortGroupBy:
|
|
retval = _equalSortGroupBy(a, b);
|
|
break;
|
|
case T_RangeSubselect:
|
|
retval = _equalRangeSubselect(a, b);
|
|
break;
|
|
case T_RangeFunction:
|
|
retval = _equalRangeFunction(a, b);
|
|
break;
|
|
case T_TypeName:
|
|
retval = _equalTypeName(a, b);
|
|
break;
|
|
case T_IndexElem:
|
|
retval = _equalIndexElem(a, b);
|
|
break;
|
|
case T_ColumnDef:
|
|
retval = _equalColumnDef(a, b);
|
|
break;
|
|
case T_Constraint:
|
|
retval = _equalConstraint(a, b);
|
|
break;
|
|
case T_DefElem:
|
|
retval = _equalDefElem(a, b);
|
|
break;
|
|
case T_RangeTblEntry:
|
|
retval = _equalRangeTblEntry(a, b);
|
|
break;
|
|
case T_SortClause:
|
|
retval = _equalSortClause(a, b);
|
|
break;
|
|
case T_GroupClause:
|
|
/* GroupClause is equivalent to SortClause */
|
|
retval = _equalSortClause(a, b);
|
|
break;
|
|
case T_FkConstraint:
|
|
retval = _equalFkConstraint(a, b);
|
|
break;
|
|
case T_PrivGrantee:
|
|
retval = _equalPrivGrantee(a, b);
|
|
break;
|
|
case T_FuncWithArgs:
|
|
retval = _equalFuncWithArgs(a, b);
|
|
break;
|
|
case T_InsertDefault:
|
|
retval = _equalInsertDefault(a, b);
|
|
break;
|
|
|
|
default:
|
|
elog(WARNING, "equal: don't know whether nodes of type %d are equal",
|
|
nodeTag(a));
|
|
break;
|
|
}
|
|
|
|
return retval;
|
|
}
|