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-rw-r--r--src/include/nodes/bitmapset.h2
-rw-r--r--src/include/nodes/nodes.h15
-rw-r--r--src/include/nodes/parsenodes.h134
-rw-r--r--src/include/nodes/primnodes.h273
4 files changed, 242 insertions, 182 deletions
diff --git a/src/include/nodes/bitmapset.h b/src/include/nodes/bitmapset.h
index 0dca6bc5fac..3d2225e1ae0 100644
--- a/src/include/nodes/bitmapset.h
+++ b/src/include/nodes/bitmapset.h
@@ -50,7 +50,7 @@ typedef int32 signedbitmapword; /* must be the matching signed type */
typedef struct Bitmapset
{
- pg_node_attr(custom_copy_equal, special_read_write)
+ pg_node_attr(custom_copy_equal, special_read_write, no_query_jumble)
NodeTag type;
int nwords; /* number of words in array */
diff --git a/src/include/nodes/nodes.h b/src/include/nodes/nodes.h
index 10752e8011c..75dfe1919d7 100644
--- a/src/include/nodes/nodes.h
+++ b/src/include/nodes/nodes.h
@@ -53,16 +53,20 @@ typedef enum NodeTag
* - custom_read_write: Has custom implementations in outfuncs.c and
* readfuncs.c.
*
+ * - custom_query_jumble: Has custom implementation in queryjumblefuncs.c.
+ *
* - no_copy: Does not support copyObject() at all.
*
* - no_equal: Does not support equal() at all.
*
* - no_copy_equal: Shorthand for both no_copy and no_equal.
*
+ * - no_query_jumble: Does not support JumbleQuery() at all.
+ *
* - no_read: Does not support nodeRead() at all.
*
- * - nodetag_only: Does not support copyObject(), equal(), outNode(),
- * or nodeRead().
+ * - nodetag_only: Does not support copyObject(), equal(), jumbleQuery()
+ * outNode() or nodeRead().
*
* - special_read_write: Has special treatment in outNode() and nodeRead().
*
@@ -97,6 +101,13 @@ typedef enum NodeTag
* - equal_ignore_if_zero: Ignore the field for equality if it is zero.
* (Otherwise, compare normally.)
*
+ * - query_jumble_ignore: Ignore the field for the query jumbling. Note
+ * that typmod and collation information are usually irrelevant for the
+ * query jumbling.
+ *
+ * - query_jumble_location: Mark the field as a location to track. This is
+ * only allowed for integer fields that include "location" in their name.
+ *
* - read_as(VALUE): In nodeRead(), replace the field's value with VALUE.
*
* - read_write_ignore: Ignore the field for read/write. This is only allowed
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index fbbbe647a43..3d67787e7af 100644
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -116,6 +116,11 @@ typedef uint64 AclMode; /* a bitmask of privilege bits */
*
* Planning converts a Query tree into a Plan tree headed by a PlannedStmt
* node --- the Query structure is not used by the executor.
+ *
+ * All the fields ignored for the query jumbling are not semantically
+ * significant (such as alias names), as is ignored anything that can
+ * be deduced from child nodes (else we'd just be double-hashing that
+ * piece of information).
*/
typedef struct Query
{
@@ -124,45 +129,47 @@ typedef struct Query
CmdType commandType; /* select|insert|update|delete|merge|utility */
/* where did I come from? */
- QuerySource querySource;
+ QuerySource querySource pg_node_attr(query_jumble_ignore);
/*
* query identifier (can be set by plugins); ignored for equal, as it
- * might not be set; also not stored
+ * might not be set; also not stored. This is the result of the query
+ * jumble, hence ignored.
*/
- uint64 queryId pg_node_attr(equal_ignore, read_write_ignore, read_as(0));
+ uint64 queryId pg_node_attr(equal_ignore, query_jumble_ignore, read_write_ignore, read_as(0));
/* do I set the command result tag? */
- bool canSetTag;
+ bool canSetTag pg_node_attr(query_jumble_ignore);
Node *utilityStmt; /* non-null if commandType == CMD_UTILITY */
/*
* rtable index of target relation for INSERT/UPDATE/DELETE/MERGE; 0 for
- * SELECT.
+ * SELECT. This is ignored in the query jumble as unrelated to the
+ * compilation of the query ID.
*/
- int resultRelation;
+ int resultRelation pg_node_attr(query_jumble_ignore);
/* has aggregates in tlist or havingQual */
- bool hasAggs;
+ bool hasAggs pg_node_attr(query_jumble_ignore);
/* has window functions in tlist */
- bool hasWindowFuncs;
+ bool hasWindowFuncs pg_node_attr(query_jumble_ignore);
/* has set-returning functions in tlist */
- bool hasTargetSRFs;
+ bool hasTargetSRFs pg_node_attr(query_jumble_ignore);
/* has subquery SubLink */
- bool hasSubLinks;
+ bool hasSubLinks pg_node_attr(query_jumble_ignore);
/* distinctClause is from DISTINCT ON */
- bool hasDistinctOn;
+ bool hasDistinctOn pg_node_attr(query_jumble_ignore);
/* WITH RECURSIVE was specified */
- bool hasRecursive;
+ bool hasRecursive pg_node_attr(query_jumble_ignore);
/* has INSERT/UPDATE/DELETE in WITH */
- bool hasModifyingCTE;
+ bool hasModifyingCTE pg_node_attr(query_jumble_ignore);
/* FOR [KEY] UPDATE/SHARE was specified */
- bool hasForUpdate;
+ bool hasForUpdate pg_node_attr(query_jumble_ignore);
/* rewriter has applied some RLS policy */
- bool hasRowSecurity;
+ bool hasRowSecurity pg_node_attr(query_jumble_ignore);
/* is a RETURN statement */
- bool isReturn;
+ bool isReturn pg_node_attr(query_jumble_ignore);
List *cteList; /* WITH list (of CommonTableExpr's) */
@@ -172,18 +179,18 @@ typedef struct Query
* list of RTEPermissionInfo nodes for the rtable entries having
* perminfoindex > 0
*/
- List *rteperminfos;
+ List *rteperminfos pg_node_attr(query_jumble_ignore);
FromExpr *jointree; /* table join tree (FROM and WHERE clauses);
* also USING clause for MERGE */
List *mergeActionList; /* list of actions for MERGE (only) */
/* whether to use outer join */
- bool mergeUseOuterJoin;
+ bool mergeUseOuterJoin pg_node_attr(query_jumble_ignore);
List *targetList; /* target list (of TargetEntry) */
/* OVERRIDING clause */
- OverridingKind override;
+ OverridingKind override pg_node_attr(query_jumble_ignore);
OnConflictExpr *onConflict; /* ON CONFLICT DO [NOTHING | UPDATE] */
@@ -215,10 +222,10 @@ typedef struct Query
* A list of pg_constraint OIDs that the query depends on to be
* semantically valid
*/
- List *constraintDeps;
+ List *constraintDeps pg_node_attr(query_jumble_ignore);
/* a list of WithCheckOption's (added during rewrite) */
- List *withCheckOptions;
+ List *withCheckOptions pg_node_attr(query_jumble_ignore);
/*
* The following two fields identify the portion of the source text string
@@ -229,7 +236,7 @@ typedef struct Query
/* start location, or -1 if unknown */
int stmt_location;
/* length in bytes; 0 means "rest of string" */
- int stmt_len;
+ int stmt_len pg_node_attr(query_jumble_ignore);
} Query;
@@ -1019,7 +1026,7 @@ typedef enum RTEKind
typedef struct RangeTblEntry
{
- pg_node_attr(custom_read_write)
+ pg_node_attr(custom_read_write, custom_query_jumble)
NodeTag type;
@@ -1258,6 +1265,8 @@ typedef struct RTEPermissionInfo
* time. We do however remember how many columns we thought the type had
* (including dropped columns!), so that we can successfully ignore any
* columns added after the query was parsed.
+ *
+ * The query jumbling only needs to track the function expression.
*/
typedef struct RangeTblFunction
{
@@ -1265,20 +1274,20 @@ typedef struct RangeTblFunction
Node *funcexpr; /* expression tree for func call */
/* number of columns it contributes to RTE */
- int funccolcount;
+ int funccolcount pg_node_attr(query_jumble_ignore);
/* These fields record the contents of a column definition list, if any: */
/* column names (list of String) */
- List *funccolnames;
+ List *funccolnames pg_node_attr(query_jumble_ignore);
/* OID list of column type OIDs */
- List *funccoltypes;
+ List *funccoltypes pg_node_attr(query_jumble_ignore);
/* integer list of column typmods */
- List *funccoltypmods;
+ List *funccoltypmods pg_node_attr(query_jumble_ignore);
/* OID list of column collation OIDs */
- List *funccolcollations;
+ List *funccolcollations pg_node_attr(query_jumble_ignore);
/* This is set during planning for use by the executor: */
/* PARAM_EXEC Param IDs affecting this func */
- Bitmapset *funcparams;
+ Bitmapset *funcparams pg_node_attr(query_jumble_ignore);
} RangeTblFunction;
/*
@@ -1386,7 +1395,7 @@ typedef struct SortGroupClause
Oid sortop; /* the ordering operator ('<' op), or 0 */
bool nulls_first; /* do NULLs come before normal values? */
/* can eqop be implemented by hashing? */
- bool hashable;
+ bool hashable pg_node_attr(query_jumble_ignore);
} SortGroupClause;
/*
@@ -1451,7 +1460,7 @@ typedef enum GroupingSetKind
typedef struct GroupingSet
{
NodeTag type;
- GroupingSetKind kind;
+ GroupingSetKind kind pg_node_attr(query_jumble_ignore);
List *content;
int location;
} GroupingSet;
@@ -1472,14 +1481,17 @@ typedef struct GroupingSet
* When refname isn't null, the partitionClause is always copied from there;
* the orderClause might or might not be copied (see copiedOrder); the framing
* options are never copied, per spec.
+ *
+ * The information relevant for the query jumbling is the partition clause
+ * type and its bounds.
*/
typedef struct WindowClause
{
NodeTag type;
/* window name (NULL in an OVER clause) */
- char *name;
+ char *name pg_node_attr(query_jumble_ignore);
/* referenced window name, if any */
- char *refname;
+ char *refname pg_node_attr(query_jumble_ignore);
List *partitionClause; /* PARTITION BY list */
/* ORDER BY list */
List *orderClause;
@@ -1487,20 +1499,20 @@ typedef struct WindowClause
Node *startOffset; /* expression for starting bound, if any */
Node *endOffset; /* expression for ending bound, if any */
/* qual to help short-circuit execution */
- List *runCondition;
+ List *runCondition pg_node_attr(query_jumble_ignore);
/* in_range function for startOffset */
- Oid startInRangeFunc;
+ Oid startInRangeFunc pg_node_attr(query_jumble_ignore);
/* in_range function for endOffset */
- Oid endInRangeFunc;
+ Oid endInRangeFunc pg_node_attr(query_jumble_ignore);
/* collation for in_range tests */
- Oid inRangeColl;
+ Oid inRangeColl pg_node_attr(query_jumble_ignore);
/* use ASC sort order for in_range tests? */
- bool inRangeAsc;
+ bool inRangeAsc pg_node_attr(query_jumble_ignore);
/* nulls sort first for in_range tests? */
- bool inRangeNullsFirst;
+ bool inRangeNullsFirst pg_node_attr(query_jumble_ignore);
Index winref; /* ID referenced by window functions */
/* did we copy orderClause from refname? */
- bool copiedOrder;
+ bool copiedOrder pg_node_attr(query_jumble_ignore);
} WindowClause;
/*
@@ -1610,31 +1622,37 @@ typedef struct CTECycleClause
typedef struct CommonTableExpr
{
NodeTag type;
- char *ctename; /* query name (never qualified) */
- List *aliascolnames; /* optional list of column names */
+
+ /*
+ * Query name (never qualified). The string name is included in the query
+ * jumbling because RTE_CTE RTEs need it.
+ */
+ char *ctename;
+ /* optional list of column names */
+ List *aliascolnames pg_node_attr(query_jumble_ignore);
CTEMaterialize ctematerialized; /* is this an optimization fence? */
/* SelectStmt/InsertStmt/etc before parse analysis, Query afterwards: */
Node *ctequery; /* the CTE's subquery */
- CTESearchClause *search_clause;
- CTECycleClause *cycle_clause;
+ CTESearchClause *search_clause pg_node_attr(query_jumble_ignore);
+ CTECycleClause *cycle_clause pg_node_attr(query_jumble_ignore);
int location; /* token location, or -1 if unknown */
/* These fields are set during parse analysis: */
/* is this CTE actually recursive? */
- bool cterecursive;
+ bool cterecursive pg_node_attr(query_jumble_ignore);
/*
* Number of RTEs referencing this CTE (excluding internal
- * self-references)
+ * self-references), irrelevant for query jumbling.
*/
- int cterefcount;
+ int cterefcount pg_node_attr(query_jumble_ignore);
/* list of output column names */
- List *ctecolnames;
+ List *ctecolnames pg_node_attr(query_jumble_ignore);
/* OID list of output column type OIDs */
- List *ctecoltypes;
+ List *ctecoltypes pg_node_attr(query_jumble_ignore);
/* integer list of output column typmods */
- List *ctecoltypmods;
+ List *ctecoltypmods pg_node_attr(query_jumble_ignore);
/* OID list of column collation OIDs */
- List *ctecolcollations;
+ List *ctecolcollations pg_node_attr(query_jumble_ignore);
} CommonTableExpr;
/* Convenience macro to get the output tlist of a CTE's query */
@@ -1672,11 +1690,11 @@ typedef struct MergeAction
bool matched; /* true=MATCHED, false=NOT MATCHED */
CmdType commandType; /* INSERT/UPDATE/DELETE/DO NOTHING */
/* OVERRIDING clause */
- OverridingKind override;
+ OverridingKind override pg_node_attr(query_jumble_ignore);
Node *qual; /* transformed WHEN conditions */
List *targetList; /* the target list (of TargetEntry) */
/* target attribute numbers of an UPDATE */
- List *updateColnos;
+ List *updateColnos pg_node_attr(query_jumble_ignore);
} MergeAction;
/*
@@ -1885,15 +1903,15 @@ typedef struct SetOperationStmt
Node *rarg; /* right child */
/* Eventually add fields for CORRESPONDING spec here */
- /* Fields derived during parse analysis: */
+ /* Fields derived during parse analysis (irrelevant for query jumbling): */
/* OID list of output column type OIDs */
- List *colTypes;
+ List *colTypes pg_node_attr(query_jumble_ignore);
/* integer list of output column typmods */
- List *colTypmods;
+ List *colTypmods pg_node_attr(query_jumble_ignore);
/* OID list of output column collation OIDs */
- List *colCollations;
+ List *colCollations pg_node_attr(query_jumble_ignore);
/* a list of SortGroupClause's */
- List *groupClauses;
+ List *groupClauses pg_node_attr(query_jumble_ignore);
/* groupClauses is NIL if UNION ALL, but must be set otherwise */
} SetOperationStmt;
diff --git a/src/include/nodes/primnodes.h b/src/include/nodes/primnodes.h
index 6c96fa2f516..6d740be5c0a 100644
--- a/src/include/nodes/primnodes.h
+++ b/src/include/nodes/primnodes.h
@@ -96,29 +96,29 @@ typedef struct TableFunc
{
NodeTag type;
/* list of namespace URI expressions */
- List *ns_uris;
+ List *ns_uris pg_node_attr(query_jumble_ignore);
/* list of namespace names or NULL */
- List *ns_names;
+ List *ns_names pg_node_attr(query_jumble_ignore);
/* input document expression */
Node *docexpr;
/* row filter expression */
Node *rowexpr;
/* column names (list of String) */
- List *colnames;
+ List *colnames pg_node_attr(query_jumble_ignore);
/* OID list of column type OIDs */
- List *coltypes;
+ List *coltypes pg_node_attr(query_jumble_ignore);
/* integer list of column typmods */
- List *coltypmods;
+ List *coltypmods pg_node_attr(query_jumble_ignore);
/* OID list of column collation OIDs */
- List *colcollations;
+ List *colcollations pg_node_attr(query_jumble_ignore);
/* list of column filter expressions */
List *colexprs;
/* list of column default expressions */
- List *coldefexprs;
+ List *coldefexprs pg_node_attr(query_jumble_ignore);
/* nullability flag for each output column */
- Bitmapset *notnulls;
+ Bitmapset *notnulls pg_node_attr(query_jumble_ignore);
/* counts from 0; -1 if none specified */
- int ordinalitycol;
+ int ordinalitycol pg_node_attr(query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
} TableFunc;
@@ -235,13 +235,18 @@ typedef struct Var
AttrNumber varattno;
/* pg_type OID for the type of this var */
- Oid vartype;
+ Oid vartype pg_node_attr(query_jumble_ignore);
/* pg_attribute typmod value */
- int32 vartypmod;
+ int32 vartypmod pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid varcollid;
- /* RT indexes of outer joins that can replace the Var's value with null */
- Bitmapset *varnullingrels;
+ Oid varcollid pg_node_attr(query_jumble_ignore);
+
+ /*
+ * RT indexes of outer joins that can replace the Var's value with null.
+ * We can omit varnullingrels in the query jumble, because it's fully
+ * determined by varno/varlevelsup plus the Var's query location.
+ */
+ Bitmapset *varnullingrels pg_node_attr(query_jumble_ignore);
/*
* for subquery variables referencing outer relations; 0 in a normal var,
@@ -255,9 +260,9 @@ typedef struct Var
* their varno/varattno match.
*/
/* syntactic relation index (0 if unknown) */
- Index varnosyn pg_node_attr(equal_ignore);
+ Index varnosyn pg_node_attr(equal_ignore, query_jumble_ignore);
/* syntactic attribute number */
- AttrNumber varattnosyn pg_node_attr(equal_ignore);
+ AttrNumber varattnosyn pg_node_attr(equal_ignore, query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
@@ -270,6 +275,8 @@ typedef struct Var
* must be in non-extended form (4-byte header, no compression or external
* references). This ensures that the Const node is self-contained and makes
* it more likely that equal() will see logically identical values as equal.
+ *
+ * Only the constant type OID is relevant for the query jumbling.
*/
typedef struct Const
{
@@ -279,24 +286,28 @@ typedef struct Const
/* pg_type OID of the constant's datatype */
Oid consttype;
/* typmod value, if any */
- int32 consttypmod;
+ int32 consttypmod pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid constcollid;
+ Oid constcollid pg_node_attr(query_jumble_ignore);
/* typlen of the constant's datatype */
- int constlen;
+ int constlen pg_node_attr(query_jumble_ignore);
/* the constant's value */
- Datum constvalue;
+ Datum constvalue pg_node_attr(query_jumble_ignore);
/* whether the constant is null (if true, constvalue is undefined) */
- bool constisnull;
+ bool constisnull pg_node_attr(query_jumble_ignore);
/*
* Whether this datatype is passed by value. If true, then all the
* information is stored in the Datum. If false, then the Datum contains
* a pointer to the information.
*/
- bool constbyval;
- /* token location, or -1 if unknown */
- int location;
+ bool constbyval pg_node_attr(query_jumble_ignore);
+
+ /*
+ * token location, or -1 if unknown. All constants are tracked as
+ * locations in query jumbling, to be marked as parameters.
+ */
+ int location pg_node_attr(query_jumble_location);
} Const;
/*
@@ -341,9 +352,9 @@ typedef struct Param
int paramid; /* numeric ID for parameter */
Oid paramtype; /* pg_type OID of parameter's datatype */
/* typmod value, if known */
- int32 paramtypmod;
+ int32 paramtypmod pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid paramcollid;
+ Oid paramcollid pg_node_attr(query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
} Param;
@@ -396,6 +407,9 @@ typedef struct Param
* and can share the result. Aggregates with same 'transno' but different
* 'aggno' can share the same transition state, only the final function needs
* to be called separately.
+ *
+ * Information related to collations, transition types and internal states
+ * are irrelevant for the query jumbling.
*/
typedef struct Aggref
{
@@ -405,22 +419,22 @@ typedef struct Aggref
Oid aggfnoid;
/* type Oid of result of the aggregate */
- Oid aggtype;
+ Oid aggtype pg_node_attr(query_jumble_ignore);
/* OID of collation of result */
- Oid aggcollid;
+ Oid aggcollid pg_node_attr(query_jumble_ignore);
/* OID of collation that function should use */
- Oid inputcollid;
+ Oid inputcollid pg_node_attr(query_jumble_ignore);
/*
* type Oid of aggregate's transition value; ignored for equal since it
* might not be set yet
*/
- Oid aggtranstype pg_node_attr(equal_ignore);
+ Oid aggtranstype pg_node_attr(equal_ignore, query_jumble_ignore);
/* type Oids of direct and aggregated args */
- List *aggargtypes;
+ List *aggargtypes pg_node_attr(query_jumble_ignore);
/* direct arguments, if an ordered-set agg */
List *aggdirectargs;
@@ -438,31 +452,31 @@ typedef struct Aggref
Expr *aggfilter;
/* true if argument list was really '*' */
- bool aggstar;
+ bool aggstar pg_node_attr(query_jumble_ignore);
/*
* true if variadic arguments have been combined into an array last
* argument
*/
- bool aggvariadic;
+ bool aggvariadic pg_node_attr(query_jumble_ignore);
/* aggregate kind (see pg_aggregate.h) */
- char aggkind;
+ char aggkind pg_node_attr(query_jumble_ignore);
/* aggregate input already sorted */
- bool aggpresorted pg_node_attr(equal_ignore);
+ bool aggpresorted pg_node_attr(equal_ignore, query_jumble_ignore);
/* > 0 if agg belongs to outer query */
- Index agglevelsup;
+ Index agglevelsup pg_node_attr(query_jumble_ignore);
/* expected agg-splitting mode of parent Agg */
- AggSplit aggsplit;
+ AggSplit aggsplit pg_node_attr(query_jumble_ignore);
/* unique ID within the Agg node */
- int aggno;
+ int aggno pg_node_attr(query_jumble_ignore);
/* unique ID of transition state in the Agg */
- int aggtransno;
+ int aggtransno pg_node_attr(query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
@@ -491,19 +505,22 @@ typedef struct Aggref
*
* In raw parse output we have only the args list; parse analysis fills in the
* refs list, and the planner fills in the cols list.
+ *
+ * All the fields used as information for an internal state are irrelevant
+ * for the query jumbling.
*/
typedef struct GroupingFunc
{
Expr xpr;
/* arguments, not evaluated but kept for benefit of EXPLAIN etc. */
- List *args;
+ List *args pg_node_attr(query_jumble_ignore);
/* ressortgrouprefs of arguments */
List *refs pg_node_attr(equal_ignore);
/* actual column positions set by planner */
- List *cols pg_node_attr(equal_ignore);
+ List *cols pg_node_attr(equal_ignore, query_jumble_ignore);
/* same as Aggref.agglevelsup */
Index agglevelsup;
@@ -514,6 +531,9 @@ typedef struct GroupingFunc
/*
* WindowFunc
+ *
+ * Collation information is irrelevant for the query jumbling, as is the
+ * internal state information of the node like "winstar" and "winagg".
*/
typedef struct WindowFunc
{
@@ -521,11 +541,11 @@ typedef struct WindowFunc
/* pg_proc Oid of the function */
Oid winfnoid;
/* type Oid of result of the window function */
- Oid wintype;
+ Oid wintype pg_node_attr(query_jumble_ignore);
/* OID of collation of result */
- Oid wincollid;
+ Oid wincollid pg_node_attr(query_jumble_ignore);
/* OID of collation that function should use */
- Oid inputcollid;
+ Oid inputcollid pg_node_attr(query_jumble_ignore);
/* arguments to the window function */
List *args;
/* FILTER expression, if any */
@@ -533,9 +553,9 @@ typedef struct WindowFunc
/* index of associated WindowClause */
Index winref;
/* true if argument list was really '*' */
- bool winstar;
+ bool winstar pg_node_attr(query_jumble_ignore);
/* is function a simple aggregate? */
- bool winagg;
+ bool winagg pg_node_attr(query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
} WindowFunc;
@@ -574,6 +594,8 @@ typedef struct WindowFunc
* subscripting logic. Likewise, reftypmod and refcollid will match the
* container's properties in a store, but could be different in a fetch.
*
+ * Any internal state data is ignored for the query jumbling.
+ *
* Note: for the cases where a container is returned, if refexpr yields a R/W
* expanded container, then the implementation is allowed to modify that
* object in-place and return the same object.
@@ -582,15 +604,15 @@ typedef struct SubscriptingRef
{
Expr xpr;
/* type of the container proper */
- Oid refcontainertype;
+ Oid refcontainertype pg_node_attr(query_jumble_ignore);
/* the container type's pg_type.typelem */
- Oid refelemtype;
+ Oid refelemtype pg_node_attr(query_jumble_ignore);
/* type of the SubscriptingRef's result */
- Oid refrestype;
+ Oid refrestype pg_node_attr(query_jumble_ignore);
/* typmod of the result */
- int32 reftypmod;
+ int32 reftypmod pg_node_attr(query_jumble_ignore);
/* collation of result, or InvalidOid if none */
- Oid refcollid;
+ Oid refcollid pg_node_attr(query_jumble_ignore);
/* expressions that evaluate to upper container indexes */
List *refupperindexpr;
@@ -641,6 +663,9 @@ typedef enum CoercionForm
/*
* FuncExpr - expression node for a function call
+ *
+ * Collation information is irrelevant for the query jumbling, only the
+ * arguments and the function OID matter.
*/
typedef struct FuncExpr
{
@@ -648,21 +673,21 @@ typedef struct FuncExpr
/* PG_PROC OID of the function */
Oid funcid;
/* PG_TYPE OID of result value */
- Oid funcresulttype;
+ Oid funcresulttype pg_node_attr(query_jumble_ignore);
/* true if function returns set */
- bool funcretset;
+ bool funcretset pg_node_attr(query_jumble_ignore);
/*
* true if variadic arguments have been combined into an array last
* argument
*/
- bool funcvariadic;
+ bool funcvariadic pg_node_attr(query_jumble_ignore);
/* how to display this function call */
- CoercionForm funcformat;
+ CoercionForm funcformat pg_node_attr(query_jumble_ignore);
/* OID of collation of result */
- Oid funccollid;
+ Oid funccollid pg_node_attr(query_jumble_ignore);
/* OID of collation that function should use */
- Oid inputcollid;
+ Oid inputcollid pg_node_attr(query_jumble_ignore);
/* arguments to the function */
List *args;
/* token location, or -1 if unknown */
@@ -689,7 +714,7 @@ typedef struct NamedArgExpr
/* the argument expression */
Expr *arg;
/* the name */
- char *name;
+ char *name pg_node_attr(query_jumble_ignore);
/* argument's number in positional notation */
int argnumber;
/* argument name location, or -1 if unknown */
@@ -705,6 +730,9 @@ typedef struct NamedArgExpr
* of the node. The planner makes sure it is valid before passing the node
* tree to the executor, but during parsing/planning opfuncid can be 0.
* Therefore, equal() will accept a zero value as being equal to other values.
+ *
+ * Internal state information and collation data is irrelevant for the query
+ * jumbling.
*/
typedef struct OpExpr
{
@@ -714,19 +742,19 @@ typedef struct OpExpr
Oid opno;
/* PG_PROC OID of underlying function */
- Oid opfuncid pg_node_attr(equal_ignore_if_zero);
+ Oid opfuncid pg_node_attr(equal_ignore_if_zero, query_jumble_ignore);
/* PG_TYPE OID of result value */
- Oid opresulttype;
+ Oid opresulttype pg_node_attr(query_jumble_ignore);
/* true if operator returns set */
- bool opretset;
+ bool opretset pg_node_attr(query_jumble_ignore);
/* OID of collation of result */
- Oid opcollid;
+ Oid opcollid pg_node_attr(query_jumble_ignore);
/* OID of collation that operator should use */
- Oid inputcollid;
+ Oid inputcollid pg_node_attr(query_jumble_ignore);
/* arguments to the operator (1 or 2) */
List *args;
@@ -782,6 +810,9 @@ typedef OpExpr NullIfExpr;
* Similar to OpExpr, opfuncid, hashfuncid, and negfuncid are not necessarily
* filled in right away, so will be ignored for equality if they are not set
* yet.
+ *
+ * OID entries of the internal function types are irrelevant for the query
+ * jumbling, but the operator OID and the arguments are.
*/
typedef struct ScalarArrayOpExpr
{
@@ -791,19 +822,19 @@ typedef struct ScalarArrayOpExpr
Oid opno;
/* PG_PROC OID of comparison function */
- Oid opfuncid pg_node_attr(equal_ignore_if_zero);
+ Oid opfuncid pg_node_attr(equal_ignore_if_zero, query_jumble_ignore);
/* PG_PROC OID of hash func or InvalidOid */
- Oid hashfuncid pg_node_attr(equal_ignore_if_zero);
+ Oid hashfuncid pg_node_attr(equal_ignore_if_zero, query_jumble_ignore);
/* PG_PROC OID of negator of opfuncid function or InvalidOid. See above */
- Oid negfuncid pg_node_attr(equal_ignore_if_zero);
+ Oid negfuncid pg_node_attr(equal_ignore_if_zero, query_jumble_ignore);
/* true for ANY, false for ALL */
bool useOr;
/* OID of collation that operator should use */
- Oid inputcollid;
+ Oid inputcollid pg_node_attr(query_jumble_ignore);
/* the scalar and array operands */
List *args;
@@ -905,7 +936,7 @@ typedef struct SubLink
int subLinkId; /* ID (1..n); 0 if not MULTIEXPR */
Node *testexpr; /* outer-query test for ALL/ANY/ROWCOMPARE */
/* originally specified operator name */
- List *operName;
+ List *operName pg_node_attr(query_jumble_ignore);
/* subselect as Query* or raw parsetree */
Node *subselect;
int location; /* token location, or -1 if unknown */
@@ -1017,11 +1048,11 @@ typedef struct FieldSelect
Expr *arg; /* input expression */
AttrNumber fieldnum; /* attribute number of field to extract */
/* type of the field (result type of this node) */
- Oid resulttype;
+ Oid resulttype pg_node_attr(query_jumble_ignore);
/* output typmod (usually -1) */
- int32 resulttypmod;
+ int32 resulttypmod pg_node_attr(query_jumble_ignore);
/* OID of collation of the field */
- Oid resultcollid;
+ Oid resultcollid pg_node_attr(query_jumble_ignore);
} FieldSelect;
/* ----------------
@@ -1048,9 +1079,9 @@ typedef struct FieldStore
Expr *arg; /* input tuple value */
List *newvals; /* new value(s) for field(s) */
/* integer list of field attnums */
- List *fieldnums;
+ List *fieldnums pg_node_attr(query_jumble_ignore);
/* type of result (same as type of arg) */
- Oid resulttype;
+ Oid resulttype pg_node_attr(query_jumble_ignore);
/* Like RowExpr, we deliberately omit a typmod and collation here */
} FieldStore;
@@ -1073,11 +1104,11 @@ typedef struct RelabelType
Expr *arg; /* input expression */
Oid resulttype; /* output type of coercion expression */
/* output typmod (usually -1) */
- int32 resulttypmod;
+ int32 resulttypmod pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid resultcollid;
+ Oid resultcollid pg_node_attr(query_jumble_ignore);
/* how to display this node */
- CoercionForm relabelformat;
+ CoercionForm relabelformat pg_node_attr(query_jumble_ignore);
int location; /* token location, or -1 if unknown */
} RelabelType;
@@ -1097,9 +1128,9 @@ typedef struct CoerceViaIO
Oid resulttype; /* output type of coercion */
/* output typmod is not stored, but is presumed -1 */
/* OID of collation, or InvalidOid if none */
- Oid resultcollid;
+ Oid resultcollid pg_node_attr(query_jumble_ignore);
/* how to display this node */
- CoercionForm coerceformat;
+ CoercionForm coerceformat pg_node_attr(query_jumble_ignore);
int location; /* token location, or -1 if unknown */
} CoerceViaIO;
@@ -1123,11 +1154,11 @@ typedef struct ArrayCoerceExpr
Expr *elemexpr; /* expression representing per-element work */
Oid resulttype; /* output type of coercion (an array type) */
/* output typmod (also element typmod) */
- int32 resulttypmod;
+ int32 resulttypmod pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid resultcollid;
+ Oid resultcollid pg_node_attr(query_jumble_ignore);
/* how to display this node */
- CoercionForm coerceformat;
+ CoercionForm coerceformat pg_node_attr(query_jumble_ignore);
int location; /* token location, or -1 if unknown */
} ArrayCoerceExpr;
@@ -1151,7 +1182,7 @@ typedef struct ConvertRowtypeExpr
Oid resulttype; /* output type (always a composite type) */
/* Like RowExpr, we deliberately omit a typmod and collation here */
/* how to display this node */
- CoercionForm convertformat;
+ CoercionForm convertformat pg_node_attr(query_jumble_ignore);
int location; /* token location, or -1 if unknown */
} ConvertRowtypeExpr;
@@ -1196,9 +1227,9 @@ typedef struct CaseExpr
{
Expr xpr;
/* type of expression result */
- Oid casetype;
+ Oid casetype pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid casecollid;
+ Oid casecollid pg_node_attr(query_jumble_ignore);
Expr *arg; /* implicit equality comparison argument */
List *args; /* the arguments (list of WHEN clauses) */
Expr *defresult; /* the default result (ELSE clause) */
@@ -1241,9 +1272,9 @@ typedef struct CaseTestExpr
Expr xpr;
Oid typeId; /* type for substituted value */
/* typemod for substituted value */
- int32 typeMod;
+ int32 typeMod pg_node_attr(query_jumble_ignore);
/* collation for the substituted value */
- Oid collation;
+ Oid collation pg_node_attr(query_jumble_ignore);
} CaseTestExpr;
/*
@@ -1258,15 +1289,15 @@ typedef struct ArrayExpr
{
Expr xpr;
/* type of expression result */
- Oid array_typeid;
+ Oid array_typeid pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid array_collid;
+ Oid array_collid pg_node_attr(query_jumble_ignore);
/* common type of array elements */
- Oid element_typeid;
+ Oid element_typeid pg_node_attr(query_jumble_ignore);
/* the array elements or sub-arrays */
List *elements;
/* true if elements are sub-arrays */
- bool multidims;
+ bool multidims pg_node_attr(query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
} ArrayExpr;
@@ -1298,7 +1329,7 @@ typedef struct RowExpr
List *args; /* the fields */
/* RECORDOID or a composite type's ID */
- Oid row_typeid;
+ Oid row_typeid pg_node_attr(query_jumble_ignore);
/*
* row_typeid cannot be a domain over composite, only plain composite. To
@@ -1314,10 +1345,10 @@ typedef struct RowExpr
*/
/* how to display this node */
- CoercionForm row_format;
+ CoercionForm row_format pg_node_attr(query_jumble_ignore);
/* list of String, or NIL */
- List *colnames;
+ List *colnames pg_node_attr(query_jumble_ignore);
int location; /* token location, or -1 if unknown */
} RowExpr;
@@ -1354,11 +1385,11 @@ typedef struct RowCompareExpr
/* LT LE GE or GT, never EQ or NE */
RowCompareType rctype;
/* OID list of pairwise comparison ops */
- List *opnos;
+ List *opnos pg_node_attr(query_jumble_ignore);
/* OID list of containing operator families */
- List *opfamilies;
+ List *opfamilies pg_node_attr(query_jumble_ignore);
/* OID list of collations for comparisons */
- List *inputcollids;
+ List *inputcollids pg_node_attr(query_jumble_ignore);
/* the left-hand input arguments */
List *largs;
/* the right-hand input arguments */
@@ -1372,9 +1403,9 @@ typedef struct CoalesceExpr
{
Expr xpr;
/* type of expression result */
- Oid coalescetype;
+ Oid coalescetype pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid coalescecollid;
+ Oid coalescecollid pg_node_attr(query_jumble_ignore);
/* the arguments */
List *args;
/* token location, or -1 if unknown */
@@ -1394,11 +1425,11 @@ typedef struct MinMaxExpr
{
Expr xpr;
/* common type of arguments and result */
- Oid minmaxtype;
+ Oid minmaxtype pg_node_attr(query_jumble_ignore);
/* OID of collation of result */
- Oid minmaxcollid;
+ Oid minmaxcollid pg_node_attr(query_jumble_ignore);
/* OID of collation that function should use */
- Oid inputcollid;
+ Oid inputcollid pg_node_attr(query_jumble_ignore);
/* function to execute */
MinMaxOp op;
/* the arguments */
@@ -1442,18 +1473,18 @@ typedef struct XmlExpr
/* xml function ID */
XmlExprOp op;
/* name in xml(NAME foo ...) syntaxes */
- char *name;
+ char *name pg_node_attr(query_jumble_ignore);
/* non-XML expressions for xml_attributes */
List *named_args;
/* parallel list of String values */
- List *arg_names;
+ List *arg_names pg_node_attr(query_jumble_ignore);
/* list of expressions */
List *args;
/* DOCUMENT or CONTENT */
- XmlOptionType xmloption;
+ XmlOptionType xmloption pg_node_attr(query_jumble_ignore);
/* target type/typmod for XMLSERIALIZE */
- Oid type;
- int32 typmod;
+ Oid type pg_node_attr(query_jumble_ignore);
+ int32 typmod pg_node_attr(query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
} XmlExpr;
@@ -1488,7 +1519,7 @@ typedef struct NullTest
Expr *arg; /* input expression */
NullTestType nulltesttype; /* IS NULL, IS NOT NULL */
/* T to perform field-by-field null checks */
- bool argisrow;
+ bool argisrow pg_node_attr(query_jumble_ignore);
int location; /* token location, or -1 if unknown */
} NullTest;
@@ -1529,11 +1560,11 @@ typedef struct CoerceToDomain
Expr *arg; /* input expression */
Oid resulttype; /* domain type ID (result type) */
/* output typmod (currently always -1) */
- int32 resulttypmod;
+ int32 resulttypmod pg_node_attr(query_jumble_ignore);
/* OID of collation, or InvalidOid if none */
- Oid resultcollid;
+ Oid resultcollid pg_node_attr(query_jumble_ignore);
/* how to display this node */
- CoercionForm coercionformat;
+ CoercionForm coercionformat pg_node_attr(query_jumble_ignore);
int location; /* token location, or -1 if unknown */
} CoerceToDomain;
@@ -1552,9 +1583,9 @@ typedef struct CoerceToDomainValue
/* type for substituted value */
Oid typeId;
/* typemod for substituted value */
- int32 typeMod;
+ int32 typeMod pg_node_attr(query_jumble_ignore);
/* collation for the substituted value */
- Oid collation;
+ Oid collation pg_node_attr(query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
} CoerceToDomainValue;
@@ -1572,9 +1603,9 @@ typedef struct SetToDefault
/* type for substituted value */
Oid typeId;
/* typemod for substituted value */
- int32 typeMod;
+ int32 typeMod pg_node_attr(query_jumble_ignore);
/* collation for the substituted value */
- Oid collation;
+ Oid collation pg_node_attr(query_jumble_ignore);
/* token location, or -1 if unknown */
int location;
} SetToDefault;
@@ -1692,15 +1723,15 @@ typedef struct TargetEntry
/* attribute number (see notes above) */
AttrNumber resno;
/* name of the column (could be NULL) */
- char *resname;
+ char *resname pg_node_attr(query_jumble_ignore);
/* nonzero if referenced by a sort/group clause */
Index ressortgroupref;
/* OID of column's source table */
- Oid resorigtbl;
+ Oid resorigtbl pg_node_attr(query_jumble_ignore);
/* column's number in source table */
- AttrNumber resorigcol;
+ AttrNumber resorigcol pg_node_attr(query_jumble_ignore);
/* set to true to eliminate the attribute from final target list */
- bool resjunk;
+ bool resjunk pg_node_attr(query_jumble_ignore);
} TargetEntry;
@@ -1783,13 +1814,13 @@ typedef struct JoinExpr
Node *larg; /* left subtree */
Node *rarg; /* right subtree */
/* USING clause, if any (list of String) */
- List *usingClause;
+ List *usingClause pg_node_attr(query_jumble_ignore);
/* alias attached to USING clause, if any */
- Alias *join_using_alias;
+ Alias *join_using_alias pg_node_attr(query_jumble_ignore);
/* qualifiers on join, if any */
Node *quals;
/* user-written alias clause, if any */
- Alias *alias;
+ Alias *alias pg_node_attr(query_jumble_ignore);
/* RT index assigned for join, or 0 */
int rtindex;
} JoinExpr;
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-07 08:41:22 +0000