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postgresql/src/backend/nodes/readfuncs.c
Tom Lane ab1f0c8225 Change representation of statement lists, and add statement location info. 
This patch makes several changes that improve the consistency of
representation of lists of statements.  It's always been the case
that the output of parse analysis is a list of Query nodes, whatever
the types of the individual statements in the list.  This patch brings
similar consistency to the outputs of raw parsing and planning steps:

* The output of raw parsing is now always a list of RawStmt nodes;
the statement-type-dependent nodes are one level down from that.

* The output of pg_plan_queries() is now always a list of PlannedStmt
nodes, even for utility statements.  In the case of a utility statement,
"planning" just consists of wrapping a CMD_UTILITY PlannedStmt around
the utility node.  This list representation is now used in Portal and
CachedPlan plan lists, replacing the former convention of intermixing
PlannedStmts with bare utility-statement nodes.

Now, every list of statements has a consistent head-node type depending
on how far along it is in processing.  This allows changing many places
that formerly used generic "Node *" pointers to use a more specific
pointer type, thus reducing the number of IsA() tests and casts needed,
as well as improving code clarity.

Also, the post-parse-analysis representation of DECLARE CURSOR is changed
so that it looks more like EXPLAIN, PREPARE, etc.  That is, the contained
SELECT remains a child of the DeclareCursorStmt rather than getting flipped
around to be the other way.  It's now true for both Query and PlannedStmt
that utilityStmt is non-null if and only if commandType is CMD_UTILITY.
That allows simplifying a lot of places that were testing both fields.
(I think some of those were just defensive programming, but in many places,
it was actually necessary to avoid confusing DECLARE CURSOR with SELECT.)

Because PlannedStmt carries a canSetTag field, we're also able to get rid
of some ad-hoc rules about how to reconstruct canSetTag for a bare utility
statement; specifically, the assumption that a utility is canSetTag if and
only if it's the only one in its list.  While I see no near-term need for
relaxing that restriction, it's nice to get rid of the ad-hocery.

The API of ProcessUtility() is changed so that what it's passed is the
wrapper PlannedStmt not just the bare utility statement.  This will affect
all users of ProcessUtility_hook, but the changes are pretty trivial; see
the affected contrib modules for examples of the minimum change needed.
(Most compilers should give pointer-type-mismatch warnings for uncorrected
code.)

There's also a change in the API of ExplainOneQuery_hook, to pass through
cursorOptions instead of expecting hook functions to know what to pick.
This is needed because of the DECLARE CURSOR changes, but really should
have been done in 9.6; it's unlikely that any extant hook functions
know about using CURSOR_OPT_PARALLEL_OK.

Finally, teach gram.y to save statement boundary locations in RawStmt
nodes, and pass those through to Query and PlannedStmt nodes.  This allows
more intelligent handling of cases where a source query string contains
multiple statements.  This patch doesn't actually do anything with the
information, but a follow-on patch will.  (Passing this information through
cleanly is the true motivation for these changes; while I think this is all
good cleanup, it's unlikely we'd have bothered without this end goal.)

catversion bump because addition of location fields to struct Query
affects stored rules.

This patch is by me, but it owes a good deal to Fabien Coelho who did
a lot of preliminary work on the problem, and also reviewed the patch.

Discussion: https://postgr.es/m/alpine.DEB.2.20.1612200926310.29821@lancre
2017-01-14 16:02:35 -05:00

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/*-------------------------------------------------------------------------
*
* readfuncs.c
* Reader functions for Postgres tree nodes.
*
* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* src/backend/nodes/readfuncs.c
*
* NOTES
* Path nodes do not have any readfuncs support, because we never
* have occasion to read them in. (There was once code here that
* claimed to read them, but it was broken as well as unused.) We
* never read executor state trees, either.
*
* Parse location fields are written out by outfuncs.c, but only for
* possible debugging use. When reading a location field, we discard
* the stored value and set the location field to -1 (ie, "unknown").
* This is because nodes coming from a stored rule should not be thought
* to have a known location in the current query's text.
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include <math.h>
#include "fmgr.h"
#include "nodes/extensible.h"
#include "nodes/parsenodes.h"
#include "nodes/plannodes.h"
#include "nodes/readfuncs.h"
/*
* Macros to simplify reading of different kinds of fields. Use these
* wherever possible to reduce the chance for silly typos. Note that these
* hard-wire conventions about the names of the local variables in a Read
* routine.
*/
/* Macros for declaring appropriate local variables */
/* A few guys need only local_node */
#define READ_LOCALS_NO_FIELDS(nodeTypeName) \
nodeTypeName *local_node = makeNode(nodeTypeName)
/* And a few guys need only the pg_strtok support fields */
#define READ_TEMP_LOCALS() \
char *token; \
int length
/* ... but most need both */
#define READ_LOCALS(nodeTypeName) \
READ_LOCALS_NO_FIELDS(nodeTypeName); \
READ_TEMP_LOCALS()
/* Read an integer field (anything written as ":fldname %d") */
#define READ_INT_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atoi(token)
/* Read an unsigned integer field (anything written as ":fldname %u") */
#define READ_UINT_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atoui(token)
/* Read an long integer field (anything written as ":fldname %ld") */
#define READ_LONG_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atol(token)
/* Read an OID field (don't hard-wire assumption that OID is same as uint) */
#define READ_OID_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atooid(token)
/* Read a char field (ie, one ascii character) */
#define READ_CHAR_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = token[0]
/* Read an enumerated-type field that was written as an integer code */
#define READ_ENUM_FIELD(fldname, enumtype) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = (enumtype) atoi(token)
/* Read a float field */
#define READ_FLOAT_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atof(token)
/* Read a boolean field */
#define READ_BOOL_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = strtobool(token)
/* Read a character-string field */
#define READ_STRING_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = nullable_string(token, length)
/* Read a parse location field (and throw away the value, per notes above) */
#define READ_LOCATION_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
(void) token; /* in case not used elsewhere */ \
local_node->fldname = -1 /* set field to "unknown" */
/* Read a Node field */
#define READ_NODE_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
(void) token; /* in case not used elsewhere */ \
local_node->fldname = nodeRead(NULL, 0)
/* Read a bitmapset field */
#define READ_BITMAPSET_FIELD(fldname) \
token = pg_strtok(&length); /* skip :fldname */ \
(void) token; /* in case not used elsewhere */ \
local_node->fldname = _readBitmapset()
/* Read an attribute number array */
#define READ_ATTRNUMBER_ARRAY(fldname, len) \
token = pg_strtok(&length); /* skip :fldname */ \
local_node->fldname = readAttrNumberCols(len);
/* Read an oid array */
#define READ_OID_ARRAY(fldname, len) \
token = pg_strtok(&length); /* skip :fldname */ \
local_node->fldname = readOidCols(len);
/* Read an int array */
#define READ_INT_ARRAY(fldname, len) \
token = pg_strtok(&length); /* skip :fldname */ \
local_node->fldname = readIntCols(len);
/* Read a bool array */
#define READ_BOOL_ARRAY(fldname, len) \
token = pg_strtok(&length); /* skip :fldname */ \
local_node->fldname = readBoolCols(len);
/* Routine exit */
#define READ_DONE() \
return local_node
/*
* NOTE: use atoi() to read values written with %d, or atoui() to read
* values written with %u in outfuncs.c. An exception is OID values,
* for which use atooid(). (As of 7.1, outfuncs.c writes OIDs as %u,
* but this will probably change in the future.)
*/
#define atoui(x) ((unsigned int) strtoul((x), NULL, 10))
#define atooid(x) ((Oid) strtoul((x), NULL, 10))
#define strtobool(x) ((*(x) == 't') ? true : false)
#define nullable_string(token,length) \
((length) == 0 ? NULL : debackslash(token, length))
/*
* _readBitmapset
*/
static Bitmapset *
_readBitmapset(void)
{
Bitmapset *result = NULL;
READ_TEMP_LOCALS();
token = pg_strtok(&length);
if (token == NULL)
elog(ERROR, "incomplete Bitmapset structure");
if (length != 1 || token[0] != '(')
elog(ERROR, "unrecognized token: \"%.*s\"", length, token);
token = pg_strtok(&length);
if (token == NULL)
elog(ERROR, "incomplete Bitmapset structure");
if (length != 1 || token[0] != 'b')
elog(ERROR, "unrecognized token: \"%.*s\"", length, token);
for (;;)
{
int val;
char *endptr;
token = pg_strtok(&length);
if (token == NULL)
elog(ERROR, "unterminated Bitmapset structure");
if (length == 1 && token[0] == ')')
break;
val = (int) strtol(token, &endptr, 10);
if (endptr != token + length)
elog(ERROR, "unrecognized integer: \"%.*s\"", length, token);
result = bms_add_member(result, val);
}
return result;
}
/*
* for use by extensions which define extensible nodes
*/
Bitmapset *
readBitmapset(void)
{
return _readBitmapset();
}
/*
* _readQuery
*/
static Query *
_readQuery(void)
{
READ_LOCALS(Query);
READ_ENUM_FIELD(commandType, CmdType);
READ_ENUM_FIELD(querySource, QuerySource);
local_node->queryId = 0; /* not saved in output format */
READ_BOOL_FIELD(canSetTag);
READ_NODE_FIELD(utilityStmt);
READ_INT_FIELD(resultRelation);
READ_BOOL_FIELD(hasAggs);
READ_BOOL_FIELD(hasWindowFuncs);
READ_BOOL_FIELD(hasTargetSRFs);
READ_BOOL_FIELD(hasSubLinks);
READ_BOOL_FIELD(hasDistinctOn);
READ_BOOL_FIELD(hasRecursive);
READ_BOOL_FIELD(hasModifyingCTE);
READ_BOOL_FIELD(hasForUpdate);
READ_BOOL_FIELD(hasRowSecurity);
READ_NODE_FIELD(cteList);
READ_NODE_FIELD(rtable);
READ_NODE_FIELD(jointree);
READ_NODE_FIELD(targetList);
READ_NODE_FIELD(onConflict);
READ_NODE_FIELD(returningList);
READ_NODE_FIELD(groupClause);
READ_NODE_FIELD(groupingSets);
READ_NODE_FIELD(havingQual);
READ_NODE_FIELD(windowClause);
READ_NODE_FIELD(distinctClause);
READ_NODE_FIELD(sortClause);
READ_NODE_FIELD(limitOffset);
READ_NODE_FIELD(limitCount);
READ_NODE_FIELD(rowMarks);
READ_NODE_FIELD(setOperations);
READ_NODE_FIELD(constraintDeps);
/* withCheckOptions intentionally omitted, see comment in parsenodes.h */
READ_LOCATION_FIELD(stmt_location);
READ_LOCATION_FIELD(stmt_len);
READ_DONE();
}
/*
* _readNotifyStmt
*/
static NotifyStmt *
_readNotifyStmt(void)
{
READ_LOCALS(NotifyStmt);
READ_STRING_FIELD(conditionname);
READ_STRING_FIELD(payload);
READ_DONE();
}
/*
* _readDeclareCursorStmt
*/
static DeclareCursorStmt *
_readDeclareCursorStmt(void)
{
READ_LOCALS(DeclareCursorStmt);
READ_STRING_FIELD(portalname);
READ_INT_FIELD(options);
READ_NODE_FIELD(query);
READ_DONE();
}
/*
* _readWithCheckOption
*/
static WithCheckOption *
_readWithCheckOption(void)
{
READ_LOCALS(WithCheckOption);
READ_ENUM_FIELD(kind, WCOKind);
READ_STRING_FIELD(relname);
READ_STRING_FIELD(polname);
READ_NODE_FIELD(qual);
READ_BOOL_FIELD(cascaded);
READ_DONE();
}
/*
* _readSortGroupClause
*/
static SortGroupClause *
_readSortGroupClause(void)
{
READ_LOCALS(SortGroupClause);
READ_UINT_FIELD(tleSortGroupRef);
READ_OID_FIELD(eqop);
READ_OID_FIELD(sortop);
READ_BOOL_FIELD(nulls_first);
READ_BOOL_FIELD(hashable);
READ_DONE();
}
/*
* _readGroupingSet
*/
static GroupingSet *
_readGroupingSet(void)
{
READ_LOCALS(GroupingSet);
READ_ENUM_FIELD(kind, GroupingSetKind);
READ_NODE_FIELD(content);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readWindowClause
*/
static WindowClause *
_readWindowClause(void)
{
READ_LOCALS(WindowClause);
READ_STRING_FIELD(name);
READ_STRING_FIELD(refname);
READ_NODE_FIELD(partitionClause);
READ_NODE_FIELD(orderClause);
READ_INT_FIELD(frameOptions);
READ_NODE_FIELD(startOffset);
READ_NODE_FIELD(endOffset);
READ_UINT_FIELD(winref);
READ_BOOL_FIELD(copiedOrder);
READ_DONE();
}
/*
* _readRowMarkClause
*/
static RowMarkClause *
_readRowMarkClause(void)
{
READ_LOCALS(RowMarkClause);
READ_UINT_FIELD(rti);
READ_ENUM_FIELD(strength, LockClauseStrength);
READ_ENUM_FIELD(waitPolicy, LockWaitPolicy);
READ_BOOL_FIELD(pushedDown);
READ_DONE();
}
/*
* _readCommonTableExpr
*/
static CommonTableExpr *
_readCommonTableExpr(void)
{
READ_LOCALS(CommonTableExpr);
READ_STRING_FIELD(ctename);
READ_NODE_FIELD(aliascolnames);
READ_NODE_FIELD(ctequery);
READ_LOCATION_FIELD(location);
READ_BOOL_FIELD(cterecursive);
READ_INT_FIELD(cterefcount);
READ_NODE_FIELD(ctecolnames);
READ_NODE_FIELD(ctecoltypes);
READ_NODE_FIELD(ctecoltypmods);
READ_NODE_FIELD(ctecolcollations);
READ_DONE();
}
/*
* _readSetOperationStmt
*/
static SetOperationStmt *
_readSetOperationStmt(void)
{
READ_LOCALS(SetOperationStmt);
READ_ENUM_FIELD(op, SetOperation);
READ_BOOL_FIELD(all);
READ_NODE_FIELD(larg);
READ_NODE_FIELD(rarg);
READ_NODE_FIELD(colTypes);
READ_NODE_FIELD(colTypmods);
READ_NODE_FIELD(colCollations);
READ_NODE_FIELD(groupClauses);
READ_DONE();
}
/*
* Stuff from primnodes.h.
*/
static Alias *
_readAlias(void)
{
READ_LOCALS(Alias);
READ_STRING_FIELD(aliasname);
READ_NODE_FIELD(colnames);
READ_DONE();
}
static RangeVar *
_readRangeVar(void)
{
READ_LOCALS(RangeVar);
local_node->catalogname = NULL; /* not currently saved in output
* format */
READ_STRING_FIELD(schemaname);
READ_STRING_FIELD(relname);
READ_BOOL_FIELD(inh);
READ_CHAR_FIELD(relpersistence);
READ_NODE_FIELD(alias);
READ_LOCATION_FIELD(location);
READ_DONE();
}
static IntoClause *
_readIntoClause(void)
{
READ_LOCALS(IntoClause);
READ_NODE_FIELD(rel);
READ_NODE_FIELD(colNames);
READ_NODE_FIELD(options);
READ_ENUM_FIELD(onCommit, OnCommitAction);
READ_STRING_FIELD(tableSpaceName);
READ_NODE_FIELD(viewQuery);
READ_BOOL_FIELD(skipData);
READ_DONE();
}
/*
* _readVar
*/
static Var *
_readVar(void)
{
READ_LOCALS(Var);
READ_UINT_FIELD(varno);
READ_INT_FIELD(varattno);
READ_OID_FIELD(vartype);
READ_INT_FIELD(vartypmod);
READ_OID_FIELD(varcollid);
READ_UINT_FIELD(varlevelsup);
READ_UINT_FIELD(varnoold);
READ_INT_FIELD(varoattno);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readConst
*/
static Const *
_readConst(void)
{
READ_LOCALS(Const);
READ_OID_FIELD(consttype);
READ_INT_FIELD(consttypmod);
READ_OID_FIELD(constcollid);
READ_INT_FIELD(constlen);
READ_BOOL_FIELD(constbyval);
READ_BOOL_FIELD(constisnull);
READ_LOCATION_FIELD(location);
token = pg_strtok(&length); /* skip :constvalue */
if (local_node->constisnull)
token = pg_strtok(&length); /* skip "<>" */
else
local_node->constvalue = readDatum(local_node->constbyval);
READ_DONE();
}
/*
* _readParam
*/
static Param *
_readParam(void)
{
READ_LOCALS(Param);
READ_ENUM_FIELD(paramkind, ParamKind);
READ_INT_FIELD(paramid);
READ_OID_FIELD(paramtype);
READ_INT_FIELD(paramtypmod);
READ_OID_FIELD(paramcollid);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readAggref
*/
static Aggref *
_readAggref(void)
{
READ_LOCALS(Aggref);
READ_OID_FIELD(aggfnoid);
READ_OID_FIELD(aggtype);
READ_OID_FIELD(aggcollid);
READ_OID_FIELD(inputcollid);
READ_OID_FIELD(aggtranstype);
READ_NODE_FIELD(aggargtypes);
READ_NODE_FIELD(aggdirectargs);
READ_NODE_FIELD(args);
READ_NODE_FIELD(aggorder);
READ_NODE_FIELD(aggdistinct);
READ_NODE_FIELD(aggfilter);
READ_BOOL_FIELD(aggstar);
READ_BOOL_FIELD(aggvariadic);
READ_CHAR_FIELD(aggkind);
READ_UINT_FIELD(agglevelsup);
READ_ENUM_FIELD(aggsplit, AggSplit);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readGroupingFunc
*/
static GroupingFunc *
_readGroupingFunc(void)
{
READ_LOCALS(GroupingFunc);
READ_NODE_FIELD(args);
READ_NODE_FIELD(refs);
READ_NODE_FIELD(cols);
READ_UINT_FIELD(agglevelsup);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readWindowFunc
*/
static WindowFunc *
_readWindowFunc(void)
{
READ_LOCALS(WindowFunc);
READ_OID_FIELD(winfnoid);
READ_OID_FIELD(wintype);
READ_OID_FIELD(wincollid);
READ_OID_FIELD(inputcollid);
READ_NODE_FIELD(args);
READ_NODE_FIELD(aggfilter);
READ_UINT_FIELD(winref);
READ_BOOL_FIELD(winstar);
READ_BOOL_FIELD(winagg);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readArrayRef
*/
static ArrayRef *
_readArrayRef(void)
{
READ_LOCALS(ArrayRef);
READ_OID_FIELD(refarraytype);
READ_OID_FIELD(refelemtype);
READ_INT_FIELD(reftypmod);
READ_OID_FIELD(refcollid);
READ_NODE_FIELD(refupperindexpr);
READ_NODE_FIELD(reflowerindexpr);
READ_NODE_FIELD(refexpr);
READ_NODE_FIELD(refassgnexpr);
READ_DONE();
}
/*
* _readFuncExpr
*/
static FuncExpr *
_readFuncExpr(void)
{
READ_LOCALS(FuncExpr);
READ_OID_FIELD(funcid);
READ_OID_FIELD(funcresulttype);
READ_BOOL_FIELD(funcretset);
READ_BOOL_FIELD(funcvariadic);
READ_ENUM_FIELD(funcformat, CoercionForm);
READ_OID_FIELD(funccollid);
READ_OID_FIELD(inputcollid);
READ_NODE_FIELD(args);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readNamedArgExpr
*/
static NamedArgExpr *
_readNamedArgExpr(void)
{
READ_LOCALS(NamedArgExpr);
READ_NODE_FIELD(arg);
READ_STRING_FIELD(name);
READ_INT_FIELD(argnumber);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readOpExpr
*/
static OpExpr *
_readOpExpr(void)
{
READ_LOCALS(OpExpr);
READ_OID_FIELD(opno);
READ_OID_FIELD(opfuncid);
READ_OID_FIELD(opresulttype);
READ_BOOL_FIELD(opretset);
READ_OID_FIELD(opcollid);
READ_OID_FIELD(inputcollid);
READ_NODE_FIELD(args);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readDistinctExpr
*/
static DistinctExpr *
_readDistinctExpr(void)
{
READ_LOCALS(DistinctExpr);
READ_OID_FIELD(opno);
READ_OID_FIELD(opfuncid);
READ_OID_FIELD(opresulttype);
READ_BOOL_FIELD(opretset);
READ_OID_FIELD(opcollid);
READ_OID_FIELD(inputcollid);
READ_NODE_FIELD(args);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readNullIfExpr
*/
static NullIfExpr *
_readNullIfExpr(void)
{
READ_LOCALS(NullIfExpr);
READ_OID_FIELD(opno);
READ_OID_FIELD(opfuncid);
READ_OID_FIELD(opresulttype);
READ_BOOL_FIELD(opretset);
READ_OID_FIELD(opcollid);
READ_OID_FIELD(inputcollid);
READ_NODE_FIELD(args);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readScalarArrayOpExpr
*/
static ScalarArrayOpExpr *
_readScalarArrayOpExpr(void)
{
READ_LOCALS(ScalarArrayOpExpr);
READ_OID_FIELD(opno);
READ_OID_FIELD(opfuncid);
READ_BOOL_FIELD(useOr);
READ_OID_FIELD(inputcollid);
READ_NODE_FIELD(args);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readBoolExpr
*/
static BoolExpr *
_readBoolExpr(void)
{
READ_LOCALS(BoolExpr);
/* do-it-yourself enum representation */
token = pg_strtok(&length); /* skip :boolop */
token = pg_strtok(&length); /* get field value */
if (strncmp(token, "and", 3) == 0)
local_node->boolop = AND_EXPR;
else if (strncmp(token, "or", 2) == 0)
local_node->boolop = OR_EXPR;
else if (strncmp(token, "not", 3) == 0)
local_node->boolop = NOT_EXPR;
else
elog(ERROR, "unrecognized boolop \"%.*s\"", length, token);
READ_NODE_FIELD(args);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readSubLink
*/
static SubLink *
_readSubLink(void)
{
READ_LOCALS(SubLink);
READ_ENUM_FIELD(subLinkType, SubLinkType);
READ_INT_FIELD(subLinkId);
READ_NODE_FIELD(testexpr);
READ_NODE_FIELD(operName);
READ_NODE_FIELD(subselect);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readSubPlan is not needed since it doesn't appear in stored rules.
*/
/*
* _readFieldSelect
*/
static FieldSelect *
_readFieldSelect(void)
{
READ_LOCALS(FieldSelect);
READ_NODE_FIELD(arg);
READ_INT_FIELD(fieldnum);
READ_OID_FIELD(resulttype);
READ_INT_FIELD(resulttypmod);
READ_OID_FIELD(resultcollid);
READ_DONE();
}
/*
* _readFieldStore
*/
static FieldStore *
_readFieldStore(void)
{
READ_LOCALS(FieldStore);
READ_NODE_FIELD(arg);
READ_NODE_FIELD(newvals);
READ_NODE_FIELD(fieldnums);
READ_OID_FIELD(resulttype);
READ_DONE();
}
/*
* _readRelabelType
*/
static RelabelType *
_readRelabelType(void)
{
READ_LOCALS(RelabelType);
READ_NODE_FIELD(arg);
READ_OID_FIELD(resulttype);
READ_INT_FIELD(resulttypmod);
READ_OID_FIELD(resultcollid);
READ_ENUM_FIELD(relabelformat, CoercionForm);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readCoerceViaIO
*/
static CoerceViaIO *
_readCoerceViaIO(void)
{
READ_LOCALS(CoerceViaIO);
READ_NODE_FIELD(arg);
READ_OID_FIELD(resulttype);
READ_OID_FIELD(resultcollid);
READ_ENUM_FIELD(coerceformat, CoercionForm);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readArrayCoerceExpr
*/
static ArrayCoerceExpr *
_readArrayCoerceExpr(void)
{
READ_LOCALS(ArrayCoerceExpr);
READ_NODE_FIELD(arg);
READ_OID_FIELD(elemfuncid);
READ_OID_FIELD(resulttype);
READ_INT_FIELD(resulttypmod);
READ_OID_FIELD(resultcollid);
READ_BOOL_FIELD(isExplicit);
READ_ENUM_FIELD(coerceformat, CoercionForm);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readConvertRowtypeExpr
*/
static ConvertRowtypeExpr *
_readConvertRowtypeExpr(void)
{
READ_LOCALS(ConvertRowtypeExpr);
READ_NODE_FIELD(arg);
READ_OID_FIELD(resulttype);
READ_ENUM_FIELD(convertformat, CoercionForm);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readCollateExpr
*/
static CollateExpr *
_readCollateExpr(void)
{
READ_LOCALS(CollateExpr);
READ_NODE_FIELD(arg);
READ_OID_FIELD(collOid);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readCaseExpr
*/
static CaseExpr *
_readCaseExpr(void)
{
READ_LOCALS(CaseExpr);
READ_OID_FIELD(casetype);
READ_OID_FIELD(casecollid);
READ_NODE_FIELD(arg);
READ_NODE_FIELD(args);
READ_NODE_FIELD(defresult);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readCaseWhen
*/
static CaseWhen *
_readCaseWhen(void)
{
READ_LOCALS(CaseWhen);
READ_NODE_FIELD(expr);
READ_NODE_FIELD(result);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readCaseTestExpr
*/
static CaseTestExpr *
_readCaseTestExpr(void)
{
READ_LOCALS(CaseTestExpr);
READ_OID_FIELD(typeId);
READ_INT_FIELD(typeMod);
READ_OID_FIELD(collation);
READ_DONE();
}
/*
* _readArrayExpr
*/
static ArrayExpr *
_readArrayExpr(void)
{
READ_LOCALS(ArrayExpr);
READ_OID_FIELD(array_typeid);
READ_OID_FIELD(array_collid);
READ_OID_FIELD(element_typeid);
READ_NODE_FIELD(elements);
READ_BOOL_FIELD(multidims);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readRowExpr
*/
static RowExpr *
_readRowExpr(void)
{
READ_LOCALS(RowExpr);
READ_NODE_FIELD(args);
READ_OID_FIELD(row_typeid);
READ_ENUM_FIELD(row_format, CoercionForm);
READ_NODE_FIELD(colnames);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readRowCompareExpr
*/
static RowCompareExpr *
_readRowCompareExpr(void)
{
READ_LOCALS(RowCompareExpr);
READ_ENUM_FIELD(rctype, RowCompareType);
READ_NODE_FIELD(opnos);
READ_NODE_FIELD(opfamilies);
READ_NODE_FIELD(inputcollids);
READ_NODE_FIELD(largs);
READ_NODE_FIELD(rargs);
READ_DONE();
}
/*
* _readCoalesceExpr
*/
static CoalesceExpr *
_readCoalesceExpr(void)
{
READ_LOCALS(CoalesceExpr);
READ_OID_FIELD(coalescetype);
READ_OID_FIELD(coalescecollid);
READ_NODE_FIELD(args);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readMinMaxExpr
*/
static MinMaxExpr *
_readMinMaxExpr(void)
{
READ_LOCALS(MinMaxExpr);
READ_OID_FIELD(minmaxtype);
READ_OID_FIELD(minmaxcollid);
READ_OID_FIELD(inputcollid);
READ_ENUM_FIELD(op, MinMaxOp);
READ_NODE_FIELD(args);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readSQLValueFunction
*/
static SQLValueFunction *
_readSQLValueFunction(void)
{
READ_LOCALS(SQLValueFunction);
READ_ENUM_FIELD(op, SQLValueFunctionOp);
READ_OID_FIELD(type);
READ_INT_FIELD(typmod);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readXmlExpr
*/
static XmlExpr *
_readXmlExpr(void)
{
READ_LOCALS(XmlExpr);
READ_ENUM_FIELD(op, XmlExprOp);
READ_STRING_FIELD(name);
READ_NODE_FIELD(named_args);
READ_NODE_FIELD(arg_names);
READ_NODE_FIELD(args);
READ_ENUM_FIELD(xmloption, XmlOptionType);
READ_OID_FIELD(type);
READ_INT_FIELD(typmod);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readNullTest
*/
static NullTest *
_readNullTest(void)
{
READ_LOCALS(NullTest);
READ_NODE_FIELD(arg);
READ_ENUM_FIELD(nulltesttype, NullTestType);
READ_BOOL_FIELD(argisrow);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readBooleanTest
*/
static BooleanTest *
_readBooleanTest(void)
{
READ_LOCALS(BooleanTest);
READ_NODE_FIELD(arg);
READ_ENUM_FIELD(booltesttype, BoolTestType);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readCoerceToDomain
*/
static CoerceToDomain *
_readCoerceToDomain(void)
{
READ_LOCALS(CoerceToDomain);
READ_NODE_FIELD(arg);
READ_OID_FIELD(resulttype);
READ_INT_FIELD(resulttypmod);
READ_OID_FIELD(resultcollid);
READ_ENUM_FIELD(coercionformat, CoercionForm);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readCoerceToDomainValue
*/
static CoerceToDomainValue *
_readCoerceToDomainValue(void)
{
READ_LOCALS(CoerceToDomainValue);
READ_OID_FIELD(typeId);
READ_INT_FIELD(typeMod);
READ_OID_FIELD(collation);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readSetToDefault
*/
static SetToDefault *
_readSetToDefault(void)
{
READ_LOCALS(SetToDefault);
READ_OID_FIELD(typeId);
READ_INT_FIELD(typeMod);
READ_OID_FIELD(collation);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readCurrentOfExpr
*/
static CurrentOfExpr *
_readCurrentOfExpr(void)
{
READ_LOCALS(CurrentOfExpr);
READ_UINT_FIELD(cvarno);
READ_STRING_FIELD(cursor_name);
READ_INT_FIELD(cursor_param);
READ_DONE();
}
/*
* _readInferenceElem
*/
static InferenceElem *
_readInferenceElem(void)
{
READ_LOCALS(InferenceElem);
READ_NODE_FIELD(expr);
READ_OID_FIELD(infercollid);
READ_OID_FIELD(inferopclass);
READ_DONE();
}
/*
* _readTargetEntry
*/
static TargetEntry *
_readTargetEntry(void)
{
READ_LOCALS(TargetEntry);
READ_NODE_FIELD(expr);
READ_INT_FIELD(resno);
READ_STRING_FIELD(resname);
READ_UINT_FIELD(ressortgroupref);
READ_OID_FIELD(resorigtbl);
READ_INT_FIELD(resorigcol);
READ_BOOL_FIELD(resjunk);
READ_DONE();
}
/*
* _readRangeTblRef
*/
static RangeTblRef *
_readRangeTblRef(void)
{
READ_LOCALS(RangeTblRef);
READ_INT_FIELD(rtindex);
READ_DONE();
}
/*
* _readJoinExpr
*/
static JoinExpr *
_readJoinExpr(void)
{
READ_LOCALS(JoinExpr);
READ_ENUM_FIELD(jointype, JoinType);
READ_BOOL_FIELD(isNatural);
READ_NODE_FIELD(larg);
READ_NODE_FIELD(rarg);
READ_NODE_FIELD(usingClause);
READ_NODE_FIELD(quals);
READ_NODE_FIELD(alias);
READ_INT_FIELD(rtindex);
READ_DONE();
}
/*
* _readFromExpr
*/
static FromExpr *
_readFromExpr(void)
{
READ_LOCALS(FromExpr);
READ_NODE_FIELD(fromlist);
READ_NODE_FIELD(quals);
READ_DONE();
}
/*
* _readOnConflictExpr
*/
static OnConflictExpr *
_readOnConflictExpr(void)
{
READ_LOCALS(OnConflictExpr);
READ_ENUM_FIELD(action, OnConflictAction);
READ_NODE_FIELD(arbiterElems);
READ_NODE_FIELD(arbiterWhere);
READ_OID_FIELD(constraint);
READ_NODE_FIELD(onConflictSet);
READ_NODE_FIELD(onConflictWhere);
READ_INT_FIELD(exclRelIndex);
READ_NODE_FIELD(exclRelTlist);
READ_DONE();
}
/*
* Stuff from parsenodes.h.
*/
/*
* _readRangeTblEntry
*/
static RangeTblEntry *
_readRangeTblEntry(void)
{
READ_LOCALS(RangeTblEntry);
/* put alias + eref first to make dump more legible */
READ_NODE_FIELD(alias);
READ_NODE_FIELD(eref);
READ_ENUM_FIELD(rtekind, RTEKind);
switch (local_node->rtekind)
{
case RTE_RELATION:
READ_OID_FIELD(relid);
READ_CHAR_FIELD(relkind);
READ_NODE_FIELD(tablesample);
break;
case RTE_SUBQUERY:
READ_NODE_FIELD(subquery);
READ_BOOL_FIELD(security_barrier);
break;
case RTE_JOIN:
READ_ENUM_FIELD(jointype, JoinType);
READ_NODE_FIELD(joinaliasvars);
break;
case RTE_FUNCTION:
READ_NODE_FIELD(functions);
READ_BOOL_FIELD(funcordinality);
break;
case RTE_VALUES:
READ_NODE_FIELD(values_lists);
READ_NODE_FIELD(coltypes);
READ_NODE_FIELD(coltypmods);
READ_NODE_FIELD(colcollations);
break;
case RTE_CTE:
READ_STRING_FIELD(ctename);
READ_UINT_FIELD(ctelevelsup);
READ_BOOL_FIELD(self_reference);
READ_NODE_FIELD(coltypes);
READ_NODE_FIELD(coltypmods);
READ_NODE_FIELD(colcollations);
break;
default:
elog(ERROR, "unrecognized RTE kind: %d",
(int) local_node->rtekind);
break;
}
READ_BOOL_FIELD(lateral);
READ_BOOL_FIELD(inh);
READ_BOOL_FIELD(inFromCl);
READ_UINT_FIELD(requiredPerms);
READ_OID_FIELD(checkAsUser);
READ_BITMAPSET_FIELD(selectedCols);
READ_BITMAPSET_FIELD(insertedCols);
READ_BITMAPSET_FIELD(updatedCols);
READ_NODE_FIELD(securityQuals);
READ_DONE();
}
/*
* _readRangeTblFunction
*/
static RangeTblFunction *
_readRangeTblFunction(void)
{
READ_LOCALS(RangeTblFunction);
READ_NODE_FIELD(funcexpr);
READ_INT_FIELD(funccolcount);
READ_NODE_FIELD(funccolnames);
READ_NODE_FIELD(funccoltypes);
READ_NODE_FIELD(funccoltypmods);
READ_NODE_FIELD(funccolcollations);
READ_BITMAPSET_FIELD(funcparams);
READ_DONE();
}
/*
* _readTableSampleClause
*/
static TableSampleClause *
_readTableSampleClause(void)
{
READ_LOCALS(TableSampleClause);
READ_OID_FIELD(tsmhandler);
READ_NODE_FIELD(args);
READ_NODE_FIELD(repeatable);
READ_DONE();
}
/*
* _readDefElem
*/
static DefElem *
_readDefElem(void)
{
READ_LOCALS(DefElem);
READ_STRING_FIELD(defnamespace);
READ_STRING_FIELD(defname);
READ_NODE_FIELD(arg);
READ_ENUM_FIELD(defaction, DefElemAction);
READ_LOCATION_FIELD(location);
READ_DONE();
}
/*
* _readPlannedStmt
*/
static PlannedStmt *
_readPlannedStmt(void)
{
READ_LOCALS(PlannedStmt);
READ_ENUM_FIELD(commandType, CmdType);
READ_UINT_FIELD(queryId);
READ_BOOL_FIELD(hasReturning);
READ_BOOL_FIELD(hasModifyingCTE);
READ_BOOL_FIELD(canSetTag);
READ_BOOL_FIELD(transientPlan);
READ_BOOL_FIELD(dependsOnRole);
READ_BOOL_FIELD(parallelModeNeeded);
READ_NODE_FIELD(planTree);
READ_NODE_FIELD(rtable);
READ_NODE_FIELD(resultRelations);
READ_NODE_FIELD(subplans);
READ_BITMAPSET_FIELD(rewindPlanIDs);
READ_NODE_FIELD(rowMarks);
READ_NODE_FIELD(relationOids);
READ_NODE_FIELD(invalItems);
READ_INT_FIELD(nParamExec);
READ_NODE_FIELD(utilityStmt);
READ_LOCATION_FIELD(stmt_location);
READ_LOCATION_FIELD(stmt_len);
READ_DONE();
}
/*
* ReadCommonPlan
* Assign the basic stuff of all nodes that inherit from Plan
*/
static void
ReadCommonPlan(Plan *local_node)
{
READ_TEMP_LOCALS();
READ_FLOAT_FIELD(startup_cost);
READ_FLOAT_FIELD(total_cost);
READ_FLOAT_FIELD(plan_rows);
READ_INT_FIELD(plan_width);
READ_BOOL_FIELD(parallel_aware);
READ_INT_FIELD(plan_node_id);
READ_NODE_FIELD(targetlist);
READ_NODE_FIELD(qual);
READ_NODE_FIELD(lefttree);
READ_NODE_FIELD(righttree);
READ_NODE_FIELD(initPlan);
READ_BITMAPSET_FIELD(extParam);
READ_BITMAPSET_FIELD(allParam);
}
/*
* _readPlan
*/
static Plan *
_readPlan(void)
{
READ_LOCALS_NO_FIELDS(Plan);
ReadCommonPlan(local_node);
READ_DONE();
}
/*
* _readResult
*/
static Result *
_readResult(void)
{
READ_LOCALS(Result);
ReadCommonPlan(&local_node->plan);
READ_NODE_FIELD(resconstantqual);
READ_DONE();
}
/*
* _readModifyTable
*/
static ModifyTable *
_readModifyTable(void)
{
READ_LOCALS(ModifyTable);
ReadCommonPlan(&local_node->plan);
READ_ENUM_FIELD(operation, CmdType);
READ_BOOL_FIELD(canSetTag);
READ_UINT_FIELD(nominalRelation);
READ_NODE_FIELD(resultRelations);
READ_INT_FIELD(resultRelIndex);
READ_NODE_FIELD(plans);
READ_NODE_FIELD(withCheckOptionLists);
READ_NODE_FIELD(returningLists);
READ_NODE_FIELD(fdwPrivLists);
READ_BITMAPSET_FIELD(fdwDirectModifyPlans);
READ_NODE_FIELD(rowMarks);
READ_INT_FIELD(epqParam);
READ_ENUM_FIELD(onConflictAction, OnConflictAction);
READ_NODE_FIELD(arbiterIndexes);
READ_NODE_FIELD(onConflictSet);
READ_NODE_FIELD(onConflictWhere);
READ_UINT_FIELD(exclRelRTI);
READ_NODE_FIELD(exclRelTlist);
READ_DONE();
}
/*
* _readAppend
*/
static Append *
_readAppend(void)
{
READ_LOCALS(Append);
ReadCommonPlan(&local_node->plan);
READ_NODE_FIELD(appendplans);
READ_DONE();
}
/*
* _readMergeAppend
*/
static MergeAppend *
_readMergeAppend(void)
{
READ_LOCALS(MergeAppend);
ReadCommonPlan(&local_node->plan);
READ_NODE_FIELD(mergeplans);
READ_INT_FIELD(numCols);
READ_ATTRNUMBER_ARRAY(sortColIdx, local_node->numCols);
READ_OID_ARRAY(sortOperators, local_node->numCols);
READ_OID_ARRAY(collations, local_node->numCols);
READ_BOOL_ARRAY(nullsFirst, local_node->numCols);
READ_DONE();
}
/*
* _readRecursiveUnion
*/
static RecursiveUnion *
_readRecursiveUnion(void)
{
READ_LOCALS(RecursiveUnion);
ReadCommonPlan(&local_node->plan);
READ_INT_FIELD(wtParam);
READ_INT_FIELD(numCols);
READ_ATTRNUMBER_ARRAY(dupColIdx, local_node->numCols);
READ_OID_ARRAY(dupOperators, local_node->numCols);
READ_LONG_FIELD(numGroups);
READ_DONE();
}
/*
* _readBitmapAnd
*/
static BitmapAnd *
_readBitmapAnd(void)
{
READ_LOCALS(BitmapAnd);
ReadCommonPlan(&local_node->plan);
READ_NODE_FIELD(bitmapplans);
READ_DONE();
}
/*
* _readBitmapOr
*/
static BitmapOr *
_readBitmapOr(void)
{
READ_LOCALS(BitmapOr);
ReadCommonPlan(&local_node->plan);
READ_NODE_FIELD(bitmapplans);
READ_DONE();
}
/*
* ReadCommonScan
* Assign the basic stuff of all nodes that inherit from Scan
*/
static void
ReadCommonScan(Scan *local_node)
{
READ_TEMP_LOCALS();
ReadCommonPlan(&local_node->plan);
READ_UINT_FIELD(scanrelid);
}
/*
* _readScan
*/
static Scan *
_readScan(void)
{
READ_LOCALS_NO_FIELDS(Scan);
ReadCommonScan(local_node);
READ_DONE();
}
/*
* _readSeqScan
*/
static SeqScan *
_readSeqScan(void)
{
READ_LOCALS_NO_FIELDS(SeqScan);
ReadCommonScan(local_node);
READ_DONE();
}
/*
* _readSampleScan
*/
static SampleScan *
_readSampleScan(void)
{
READ_LOCALS(SampleScan);
ReadCommonScan(&local_node->scan);
READ_NODE_FIELD(tablesample);
READ_DONE();
}
/*
* _readIndexScan
*/
static IndexScan *
_readIndexScan(void)
{
READ_LOCALS(IndexScan);
ReadCommonScan(&local_node->scan);
READ_OID_FIELD(indexid);
READ_NODE_FIELD(indexqual);
READ_NODE_FIELD(indexqualorig);
READ_NODE_FIELD(indexorderby);
READ_NODE_FIELD(indexorderbyorig);
READ_NODE_FIELD(indexorderbyops);
READ_ENUM_FIELD(indexorderdir, ScanDirection);
READ_DONE();
}
/*
* _readIndexOnlyScan
*/
static IndexOnlyScan *
_readIndexOnlyScan(void)
{
READ_LOCALS(IndexOnlyScan);
ReadCommonScan(&local_node->scan);
READ_OID_FIELD(indexid);
READ_NODE_FIELD(indexqual);
READ_NODE_FIELD(indexorderby);
READ_NODE_FIELD(indextlist);
READ_ENUM_FIELD(indexorderdir, ScanDirection);
READ_DONE();
}
/*
* _readBitmapIndexScan
*/
static BitmapIndexScan *
_readBitmapIndexScan(void)
{
READ_LOCALS(BitmapIndexScan);
ReadCommonScan(&local_node->scan);
READ_OID_FIELD(indexid);
READ_NODE_FIELD(indexqual);
READ_NODE_FIELD(indexqualorig);
READ_DONE();
}
/*
* _readBitmapHeapScan
*/
static BitmapHeapScan *
_readBitmapHeapScan(void)
{
READ_LOCALS(BitmapHeapScan);
ReadCommonScan(&local_node->scan);
READ_NODE_FIELD(bitmapqualorig);
READ_DONE();
}
/*
* _readTidScan
*/
static TidScan *
_readTidScan(void)
{
READ_LOCALS(TidScan);
ReadCommonScan(&local_node->scan);
READ_NODE_FIELD(tidquals);
READ_DONE();
}
/*
* _readSubqueryScan
*/
static SubqueryScan *
_readSubqueryScan(void)
{
READ_LOCALS(SubqueryScan);
ReadCommonScan(&local_node->scan);
READ_NODE_FIELD(subplan);
READ_DONE();
}
/*
* _readFunctionScan
*/
static FunctionScan *
_readFunctionScan(void)
{
READ_LOCALS(FunctionScan);
ReadCommonScan(&local_node->scan);
READ_NODE_FIELD(functions);
READ_BOOL_FIELD(funcordinality);
READ_DONE();
}
/*
* _readValuesScan
*/
static ValuesScan *
_readValuesScan(void)
{
READ_LOCALS(ValuesScan);
ReadCommonScan(&local_node->scan);
READ_NODE_FIELD(values_lists);
READ_DONE();
}
/*
* _readCteScan
*/
static CteScan *
_readCteScan(void)
{
READ_LOCALS(CteScan);
ReadCommonScan(&local_node->scan);
READ_INT_FIELD(ctePlanId);
READ_INT_FIELD(cteParam);
READ_DONE();
}
/*
* _readWorkTableScan
*/
static WorkTableScan *
_readWorkTableScan(void)
{
READ_LOCALS(WorkTableScan);
ReadCommonScan(&local_node->scan);
READ_INT_FIELD(wtParam);
READ_DONE();
}
/*
* _readForeignScan
*/
static ForeignScan *
_readForeignScan(void)
{
READ_LOCALS(ForeignScan);
ReadCommonScan(&local_node->scan);
READ_ENUM_FIELD(operation, CmdType);
READ_OID_FIELD(fs_server);
READ_NODE_FIELD(fdw_exprs);
READ_NODE_FIELD(fdw_private);
READ_NODE_FIELD(fdw_scan_tlist);
READ_NODE_FIELD(fdw_recheck_quals);
READ_BITMAPSET_FIELD(fs_relids);
READ_BOOL_FIELD(fsSystemCol);
READ_DONE();
}
/*
* _readCustomScan
*/
static CustomScan *
_readCustomScan(void)
{
READ_LOCALS(CustomScan);
char *custom_name;
const CustomScanMethods *methods;
ReadCommonScan(&local_node->scan);
READ_UINT_FIELD(flags);
READ_NODE_FIELD(custom_plans);
READ_NODE_FIELD(custom_exprs);
READ_NODE_FIELD(custom_private);
READ_NODE_FIELD(custom_scan_tlist);
READ_BITMAPSET_FIELD(custom_relids);
/* Lookup CustomScanMethods by CustomName */
token = pg_strtok(&length); /* skip methods: */
token = pg_strtok(&length); /* CustomName */
custom_name = nullable_string(token, length);
methods = GetCustomScanMethods(custom_name, false);
local_node->methods = methods;
READ_DONE();
}
/*
* ReadCommonJoin
* Assign the basic stuff of all nodes that inherit from Join
*/
static void
ReadCommonJoin(Join *local_node)
{
READ_TEMP_LOCALS();
ReadCommonPlan(&local_node->plan);
READ_ENUM_FIELD(jointype, JoinType);
READ_NODE_FIELD(joinqual);
}
/*
* _readJoin
*/
static Join *
_readJoin(void)
{
READ_LOCALS_NO_FIELDS(Join);
ReadCommonJoin(local_node);
READ_DONE();
}
/*
* _readNestLoop
*/
static NestLoop *
_readNestLoop(void)
{
READ_LOCALS(NestLoop);
ReadCommonJoin(&local_node->join);
READ_NODE_FIELD(nestParams);
READ_DONE();
}
/*
* _readMergeJoin
*/
static MergeJoin *
_readMergeJoin(void)
{
int numCols;
READ_LOCALS(MergeJoin);
ReadCommonJoin(&local_node->join);
READ_NODE_FIELD(mergeclauses);
numCols = list_length(local_node->mergeclauses);
READ_OID_ARRAY(mergeFamilies, numCols);
READ_OID_ARRAY(mergeCollations, numCols);
READ_INT_ARRAY(mergeStrategies, numCols);
READ_BOOL_ARRAY(mergeNullsFirst, numCols);
READ_DONE();
}
/*
* _readHashJoin
*/
static HashJoin *
_readHashJoin(void)
{
READ_LOCALS(HashJoin);
ReadCommonJoin(&local_node->join);
READ_NODE_FIELD(hashclauses);
READ_DONE();
}
/*
* _readMaterial
*/
static Material *
_readMaterial(void)
{
READ_LOCALS_NO_FIELDS(Material);
ReadCommonPlan(&local_node->plan);
READ_DONE();
}
/*
* _readSort
*/
static Sort *
_readSort(void)
{
READ_LOCALS(Sort);
ReadCommonPlan(&local_node->plan);
READ_INT_FIELD(numCols);
READ_ATTRNUMBER_ARRAY(sortColIdx, local_node->numCols);
READ_OID_ARRAY(sortOperators, local_node->numCols);
READ_OID_ARRAY(collations, local_node->numCols);
READ_BOOL_ARRAY(nullsFirst, local_node->numCols);
READ_DONE();
}
/*
* _readGroup
*/
static Group *
_readGroup(void)
{
READ_LOCALS(Group);
ReadCommonPlan(&local_node->plan);
READ_INT_FIELD(numCols);
READ_ATTRNUMBER_ARRAY(grpColIdx, local_node->numCols);
READ_OID_ARRAY(grpOperators, local_node->numCols);
READ_DONE();
}
/*
* _readAgg
*/
static Agg *
_readAgg(void)
{
READ_LOCALS(Agg);
ReadCommonPlan(&local_node->plan);
READ_ENUM_FIELD(aggstrategy, AggStrategy);
READ_ENUM_FIELD(aggsplit, AggSplit);
READ_INT_FIELD(numCols);
READ_ATTRNUMBER_ARRAY(grpColIdx, local_node->numCols);
READ_OID_ARRAY(grpOperators, local_node->numCols);
READ_LONG_FIELD(numGroups);
READ_BITMAPSET_FIELD(aggParams);
READ_NODE_FIELD(groupingSets);
READ_NODE_FIELD(chain);
READ_DONE();
}
/*
* _readWindowAgg
*/
static WindowAgg *
_readWindowAgg(void)
{
READ_LOCALS(WindowAgg);
ReadCommonPlan(&local_node->plan);
READ_UINT_FIELD(winref);
READ_INT_FIELD(partNumCols);
READ_ATTRNUMBER_ARRAY(partColIdx, local_node->partNumCols);
READ_OID_ARRAY(partOperators, local_node->partNumCols);
READ_INT_FIELD(ordNumCols);
READ_ATTRNUMBER_ARRAY(ordColIdx, local_node->ordNumCols);
READ_OID_ARRAY(ordOperators, local_node->ordNumCols);
READ_INT_FIELD(frameOptions);
READ_NODE_FIELD(startOffset);
READ_NODE_FIELD(endOffset);
READ_DONE();
}
/*
* _readUnique
*/
static Unique *
_readUnique(void)
{
READ_LOCALS(Unique);
ReadCommonPlan(&local_node->plan);
READ_INT_FIELD(numCols);
READ_ATTRNUMBER_ARRAY(uniqColIdx, local_node->numCols);
READ_OID_ARRAY(uniqOperators, local_node->numCols);
READ_DONE();
}
/*
* _readGather
*/
static Gather *
_readGather(void)
{
READ_LOCALS(Gather);
ReadCommonPlan(&local_node->plan);
READ_INT_FIELD(num_workers);
READ_BOOL_FIELD(single_copy);
READ_BOOL_FIELD(invisible);
READ_DONE();
}
/*
* _readHash
*/
static Hash *
_readHash(void)
{
READ_LOCALS(Hash);
ReadCommonPlan(&local_node->plan);
READ_OID_FIELD(skewTable);
READ_INT_FIELD(skewColumn);
READ_BOOL_FIELD(skewInherit);
READ_OID_FIELD(skewColType);
READ_INT_FIELD(skewColTypmod);
READ_DONE();
}
/*
* _readSetOp
*/
static SetOp *
_readSetOp(void)
{
READ_LOCALS(SetOp);
ReadCommonPlan(&local_node->plan);
READ_ENUM_FIELD(cmd, SetOpCmd);
READ_ENUM_FIELD(strategy, SetOpStrategy);
READ_INT_FIELD(numCols);
READ_ATTRNUMBER_ARRAY(dupColIdx, local_node->numCols);
READ_OID_ARRAY(dupOperators, local_node->numCols);
READ_INT_FIELD(flagColIdx);
READ_INT_FIELD(firstFlag);
READ_LONG_FIELD(numGroups);
READ_DONE();
}
/*
* _readLockRows
*/
static LockRows *
_readLockRows(void)
{
READ_LOCALS(LockRows);
ReadCommonPlan(&local_node->plan);
READ_NODE_FIELD(rowMarks);
READ_INT_FIELD(epqParam);
READ_DONE();
}
/*
* _readLimit
*/
static Limit *
_readLimit(void)
{
READ_LOCALS(Limit);
ReadCommonPlan(&local_node->plan);
READ_NODE_FIELD(limitOffset);
READ_NODE_FIELD(limitCount);
READ_DONE();
}
/*
* _readNestLoopParam
*/
static NestLoopParam *
_readNestLoopParam(void)
{
READ_LOCALS(NestLoopParam);
READ_INT_FIELD(paramno);
READ_NODE_FIELD(paramval);
READ_DONE();
}
/*
* _readPlanRowMark
*/
static PlanRowMark *
_readPlanRowMark(void)
{
READ_LOCALS(PlanRowMark);
READ_UINT_FIELD(rti);
READ_UINT_FIELD(prti);
READ_UINT_FIELD(rowmarkId);
READ_ENUM_FIELD(markType, RowMarkType);
READ_INT_FIELD(allMarkTypes);
READ_ENUM_FIELD(strength, LockClauseStrength);
READ_ENUM_FIELD(waitPolicy, LockWaitPolicy);
READ_BOOL_FIELD(isParent);
READ_DONE();
}
/*
* _readPlanInvalItem
*/
static PlanInvalItem *
_readPlanInvalItem(void)
{
READ_LOCALS(PlanInvalItem);
READ_INT_FIELD(cacheId);
READ_UINT_FIELD(hashValue);
READ_DONE();
}
/*
* _readSubPlan
*/
static SubPlan *
_readSubPlan(void)
{
READ_LOCALS(SubPlan);
READ_ENUM_FIELD(subLinkType, SubLinkType);
READ_NODE_FIELD(testexpr);
READ_NODE_FIELD(paramIds);
READ_INT_FIELD(plan_id);
READ_STRING_FIELD(plan_name);
READ_OID_FIELD(firstColType);
READ_INT_FIELD(firstColTypmod);
READ_OID_FIELD(firstColCollation);
READ_BOOL_FIELD(useHashTable);
READ_BOOL_FIELD(unknownEqFalse);
READ_NODE_FIELD(setParam);
READ_NODE_FIELD(parParam);
READ_NODE_FIELD(args);
READ_FLOAT_FIELD(startup_cost);
READ_FLOAT_FIELD(per_call_cost);
READ_DONE();
}
/*
* _readAlternativeSubPlan
*/
static AlternativeSubPlan *
_readAlternativeSubPlan(void)
{
READ_LOCALS(AlternativeSubPlan);
READ_NODE_FIELD(subplans);
READ_DONE();
}
/*
* _readExtensibleNode
*/
static ExtensibleNode *
_readExtensibleNode(void)
{
const ExtensibleNodeMethods *methods;
ExtensibleNode *local_node;
const char *extnodename;
READ_TEMP_LOCALS();
token = pg_strtok(&length); /* skip :extnodename */
token = pg_strtok(&length); /* get extnodename */
extnodename = nullable_string(token, length);
if (!extnodename)
elog(ERROR, "extnodename has to be supplied");
methods = GetExtensibleNodeMethods(extnodename, false);
local_node = (ExtensibleNode *) newNode(methods->node_size,
T_ExtensibleNode);
local_node->extnodename = extnodename;
/* deserialize the private fields */
methods->nodeRead(local_node);
READ_DONE();
}
/*
* _readPartitionBoundSpec
*/
static PartitionBoundSpec *
_readPartitionBoundSpec(void)
{
READ_LOCALS(PartitionBoundSpec);
READ_CHAR_FIELD(strategy);
READ_NODE_FIELD(listdatums);
READ_NODE_FIELD(lowerdatums);
READ_NODE_FIELD(upperdatums);
READ_DONE();
}
/*
* _readPartitionRangeDatum
*/
static PartitionRangeDatum *
_readPartitionRangeDatum(void)
{
READ_LOCALS(PartitionRangeDatum);
READ_BOOL_FIELD(infinite);
READ_NODE_FIELD(value);
READ_DONE();
}
/*
* parseNodeString
*
* Given a character string representing a node tree, parseNodeString creates
* the internal node structure.
*
* The string to be read must already have been loaded into pg_strtok().
*/
Node *
parseNodeString(void)
{
void *return_value;
READ_TEMP_LOCALS();
token = pg_strtok(&length);
#define MATCH(tokname, namelen) \
(length == namelen && memcmp(token, tokname, namelen) == 0)
if (MATCH("QUERY", 5))
return_value = _readQuery();
else if (MATCH("WITHCHECKOPTION", 15))
return_value = _readWithCheckOption();
else if (MATCH("SORTGROUPCLAUSE", 15))
return_value = _readSortGroupClause();
else if (MATCH("GROUPINGSET", 11))
return_value = _readGroupingSet();
else if (MATCH("WINDOWCLAUSE", 12))
return_value = _readWindowClause();
else if (MATCH("ROWMARKCLAUSE", 13))
return_value = _readRowMarkClause();
else if (MATCH("COMMONTABLEEXPR", 15))
return_value = _readCommonTableExpr();
else if (MATCH("SETOPERATIONSTMT", 16))
return_value = _readSetOperationStmt();
else if (MATCH("ALIAS", 5))
return_value = _readAlias();
else if (MATCH("RANGEVAR", 8))
return_value = _readRangeVar();
else if (MATCH("INTOCLAUSE", 10))
return_value = _readIntoClause();
else if (MATCH("VAR", 3))
return_value = _readVar();
else if (MATCH("CONST", 5))
return_value = _readConst();
else if (MATCH("PARAM", 5))
return_value = _readParam();
else if (MATCH("AGGREF", 6))
return_value = _readAggref();
else if (MATCH("GROUPINGFUNC", 12))
return_value = _readGroupingFunc();
else if (MATCH("WINDOWFUNC", 10))
return_value = _readWindowFunc();
else if (MATCH("ARRAYREF", 8))
return_value = _readArrayRef();
else if (MATCH("FUNCEXPR", 8))
return_value = _readFuncExpr();
else if (MATCH("NAMEDARGEXPR", 12))
return_value = _readNamedArgExpr();
else if (MATCH("OPEXPR", 6))
return_value = _readOpExpr();
else if (MATCH("DISTINCTEXPR", 12))
return_value = _readDistinctExpr();
else if (MATCH("NULLIFEXPR", 10))
return_value = _readNullIfExpr();
else if (MATCH("SCALARARRAYOPEXPR", 17))
return_value = _readScalarArrayOpExpr();
else if (MATCH("BOOLEXPR", 8))
return_value = _readBoolExpr();
else if (MATCH("SUBLINK", 7))
return_value = _readSubLink();
else if (MATCH("FIELDSELECT", 11))
return_value = _readFieldSelect();
else if (MATCH("FIELDSTORE", 10))
return_value = _readFieldStore();
else if (MATCH("RELABELTYPE", 11))
return_value = _readRelabelType();
else if (MATCH("COERCEVIAIO", 11))
return_value = _readCoerceViaIO();
else if (MATCH("ARRAYCOERCEEXPR", 15))
return_value = _readArrayCoerceExpr();
else if (MATCH("CONVERTROWTYPEEXPR", 18))
return_value = _readConvertRowtypeExpr();
else if (MATCH("COLLATE", 7))
return_value = _readCollateExpr();
else if (MATCH("CASE", 4))
return_value = _readCaseExpr();
else if (MATCH("WHEN", 4))
return_value = _readCaseWhen();
else if (MATCH("CASETESTEXPR", 12))
return_value = _readCaseTestExpr();
else if (MATCH("ARRAY", 5))
return_value = _readArrayExpr();
else if (MATCH("ROW", 3))
return_value = _readRowExpr();
else if (MATCH("ROWCOMPARE", 10))
return_value = _readRowCompareExpr();
else if (MATCH("COALESCE", 8))
return_value = _readCoalesceExpr();
else if (MATCH("MINMAX", 6))
return_value = _readMinMaxExpr();
else if (MATCH("SQLVALUEFUNCTION", 16))
return_value = _readSQLValueFunction();
else if (MATCH("XMLEXPR", 7))
return_value = _readXmlExpr();
else if (MATCH("NULLTEST", 8))
return_value = _readNullTest();
else if (MATCH("BOOLEANTEST", 11))
return_value = _readBooleanTest();
else if (MATCH("COERCETODOMAIN", 14))
return_value = _readCoerceToDomain();
else if (MATCH("COERCETODOMAINVALUE", 19))
return_value = _readCoerceToDomainValue();
else if (MATCH("SETTODEFAULT", 12))
return_value = _readSetToDefault();
else if (MATCH("CURRENTOFEXPR", 13))
return_value = _readCurrentOfExpr();
else if (MATCH("INFERENCEELEM", 13))
return_value = _readInferenceElem();
else if (MATCH("TARGETENTRY", 11))
return_value = _readTargetEntry();
else if (MATCH("RANGETBLREF", 11))
return_value = _readRangeTblRef();
else if (MATCH("JOINEXPR", 8))
return_value = _readJoinExpr();
else if (MATCH("FROMEXPR", 8))
return_value = _readFromExpr();
else if (MATCH("ONCONFLICTEXPR", 14))
return_value = _readOnConflictExpr();
else if (MATCH("RTE", 3))
return_value = _readRangeTblEntry();
else if (MATCH("RANGETBLFUNCTION", 16))
return_value = _readRangeTblFunction();
else if (MATCH("TABLESAMPLECLAUSE", 17))
return_value = _readTableSampleClause();
else if (MATCH("NOTIFY", 6))
return_value = _readNotifyStmt();
else if (MATCH("DEFELEM", 7))
return_value = _readDefElem();
else if (MATCH("DECLARECURSOR", 13))
return_value = _readDeclareCursorStmt();
else if (MATCH("PLANNEDSTMT", 11))
return_value = _readPlannedStmt();
else if (MATCH("PLAN", 4))
return_value = _readPlan();
else if (MATCH("RESULT", 6))
return_value = _readResult();
else if (MATCH("MODIFYTABLE", 11))
return_value = _readModifyTable();
else if (MATCH("APPEND", 6))
return_value = _readAppend();
else if (MATCH("MERGEAPPEND", 11))
return_value = _readMergeAppend();
else if (MATCH("RECURSIVEUNION", 14))
return_value = _readRecursiveUnion();
else if (MATCH("BITMAPAND", 9))
return_value = _readBitmapAnd();
else if (MATCH("BITMAPOR", 8))
return_value = _readBitmapOr();
else if (MATCH("SCAN", 4))
return_value = _readScan();
else if (MATCH("SEQSCAN", 7))
return_value = _readSeqScan();
else if (MATCH("SAMPLESCAN", 10))
return_value = _readSampleScan();
else if (MATCH("INDEXSCAN", 9))
return_value = _readIndexScan();
else if (MATCH("INDEXONLYSCAN", 13))
return_value = _readIndexOnlyScan();
else if (MATCH("BITMAPINDEXSCAN", 15))
return_value = _readBitmapIndexScan();
else if (MATCH("BITMAPHEAPSCAN", 14))
return_value = _readBitmapHeapScan();
else if (MATCH("TIDSCAN", 7))
return_value = _readTidScan();
else if (MATCH("SUBQUERYSCAN", 12))
return_value = _readSubqueryScan();
else if (MATCH("FUNCTIONSCAN", 12))
return_value = _readFunctionScan();
else if (MATCH("VALUESSCAN", 10))
return_value = _readValuesScan();
else if (MATCH("CTESCAN", 7))
return_value = _readCteScan();
else if (MATCH("WORKTABLESCAN", 13))
return_value = _readWorkTableScan();
else if (MATCH("FOREIGNSCAN", 11))
return_value = _readForeignScan();
else if (MATCH("CUSTOMSCAN", 10))
return_value = _readCustomScan();
else if (MATCH("JOIN", 4))
return_value = _readJoin();
else if (MATCH("NESTLOOP", 8))
return_value = _readNestLoop();
else if (MATCH("MERGEJOIN", 9))
return_value = _readMergeJoin();
else if (MATCH("HASHJOIN", 8))
return_value = _readHashJoin();
else if (MATCH("MATERIAL", 8))
return_value = _readMaterial();
else if (MATCH("SORT", 4))
return_value = _readSort();
else if (MATCH("GROUP", 5))
return_value = _readGroup();
else if (MATCH("AGG", 3))
return_value = _readAgg();
else if (MATCH("WINDOWAGG", 9))
return_value = _readWindowAgg();
else if (MATCH("UNIQUE", 6))
return_value = _readUnique();
else if (MATCH("GATHER", 6))
return_value = _readGather();
else if (MATCH("HASH", 4))
return_value = _readHash();
else if (MATCH("SETOP", 5))
return_value = _readSetOp();
else if (MATCH("LOCKROWS", 8))
return_value = _readLockRows();
else if (MATCH("LIMIT", 5))
return_value = _readLimit();
else if (MATCH("NESTLOOPPARAM", 13))
return_value = _readNestLoopParam();
else if (MATCH("PLANROWMARK", 11))
return_value = _readPlanRowMark();
else if (MATCH("PLANINVALITEM", 13))
return_value = _readPlanInvalItem();
else if (MATCH("SUBPLAN", 7))
return_value = _readSubPlan();
else if (MATCH("ALTERNATIVESUBPLAN", 18))
return_value = _readAlternativeSubPlan();
else if (MATCH("EXTENSIBLENODE", 14))
return_value = _readExtensibleNode();
else if (MATCH("PARTITIONBOUND", 14))
return_value = _readPartitionBoundSpec();
else if (MATCH("PARTRANGEDATUM", 14))
return_value = _readPartitionRangeDatum();
else
{
elog(ERROR, "badly formatted node string \"%.32s\"...", token);
return_value = NULL; /* keep compiler quiet */
}
return (Node *) return_value;
}
/*
* readDatum
*
* Given a string representation of a constant, recreate the appropriate
* Datum. The string representation embeds length info, but not byValue,
* so we must be told that.
*/
Datum
readDatum(bool typbyval)
{
Size length,
i;
int tokenLength;
char *token;
Datum res;
char *s;
/*
* read the actual length of the value
*/
token = pg_strtok(&tokenLength);
length = atoui(token);
token = pg_strtok(&tokenLength); /* read the '[' */
if (token == NULL || token[0] != '[')
elog(ERROR, "expected \"[\" to start datum, but got \"%s\"; length = %zu",
token ? (const char *) token : "[NULL]", length);
if (typbyval)
{
if (length > (Size) sizeof(Datum))
elog(ERROR, "byval datum but length = %zu", length);
res = (Datum) 0;
s = (char *) (&res);
for (i = 0; i < (Size) sizeof(Datum); i++)
{
token = pg_strtok(&tokenLength);
s[i] = (char) atoi(token);
}
}
else if (length <= 0)
res = (Datum) NULL;
else
{
s = (char *) palloc(length);
for (i = 0; i < length; i++)
{
token = pg_strtok(&tokenLength);
s[i] = (char) atoi(token);
}
res = PointerGetDatum(s);
}
token = pg_strtok(&tokenLength); /* read the ']' */
if (token == NULL || token[0] != ']')
elog(ERROR, "expected \"]\" to end datum, but got \"%s\"; length = %zu",
token ? (const char *) token : "[NULL]", length);
return res;
}
/*
* readAttrNumberCols
*/
AttrNumber *
readAttrNumberCols(int numCols)
{
int tokenLength,
i;
char *token;
AttrNumber *attr_vals;
if (numCols <= 0)
return NULL;
attr_vals = (AttrNumber *) palloc(numCols * sizeof(AttrNumber));
for (i = 0; i < numCols; i++)
{
token = pg_strtok(&tokenLength);
attr_vals[i] = atoi(token);
}
return attr_vals;
}
/*
* readOidCols
*/
Oid *
readOidCols(int numCols)
{
int tokenLength,
i;
char *token;
Oid *oid_vals;
if (numCols <= 0)
return NULL;
oid_vals = (Oid *) palloc(numCols * sizeof(Oid));
for (i = 0; i < numCols; i++)
{
token = pg_strtok(&tokenLength);
oid_vals[i] = atooid(token);
}
return oid_vals;
}
/*
* readIntCols
*/
int *
readIntCols(int numCols)
{
int tokenLength,
i;
char *token;
int *int_vals;
if (numCols <= 0)
return NULL;
int_vals = (int *) palloc(numCols * sizeof(int));
for (i = 0; i < numCols; i++)
{
token = pg_strtok(&tokenLength);
int_vals[i] = atoi(token);
}
return int_vals;
}
/*
* readBoolCols
*/
bool *
readBoolCols(int numCols)
{
int tokenLength,
i;
char *token;
bool *bool_vals;
if (numCols <= 0)
return NULL;
bool_vals = (bool *) palloc(numCols * sizeof(bool));
for (i = 0; i < numCols; i++)
{
token = pg_strtok(&tokenLength);
bool_vals[i] = strtobool(token);
}
return bool_vals;
}
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