diff options
Diffstat (limited to 'src/include/nodes/primnodes.h')
| -rw-r--r-- | src/include/nodes/primnodes.h | 89 |
1 files changed, 42 insertions, 47 deletions
diff --git a/src/include/nodes/primnodes.h b/src/include/nodes/primnodes.h index 279b79738ef..1cdd64b26eb 100644 --- a/src/include/nodes/primnodes.h +++ b/src/include/nodes/primnodes.h @@ -10,7 +10,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/primnodes.h,v 1.108 2005/06/26 22:05:41 tgl Exp $ + * $PostgreSQL: pgsql/src/include/nodes/primnodes.h,v 1.109 2005/10/15 02:49:45 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -64,8 +64,8 @@ typedef struct RangeVar char *catalogname; /* the catalog (database) name, or NULL */ char *schemaname; /* the schema name, or NULL */ char *relname; /* the relation/sequence name */ - InhOption inhOpt; /* expand rel by inheritance? recursively - * act on children? */ + InhOption inhOpt; /* expand rel by inheritance? recursively act + * on children? */ bool istemp; /* is this a temp relation/sequence? */ Alias *alias; /* table alias & optional column aliases */ } RangeVar; @@ -110,19 +110,17 @@ typedef struct Expr typedef struct Var { Expr xpr; - Index varno; /* index of this var's relation in the - * range table (could also be INNER or - * OUTER) */ - AttrNumber varattno; /* attribute number of this var, or zero - * for all */ - Oid vartype; /* pg_type tuple OID for the type of this - * var */ + Index varno; /* index of this var's relation in the range + * table (could also be INNER or OUTER) */ + AttrNumber varattno; /* attribute number of this var, or zero for + * all */ + Oid vartype; /* pg_type tuple OID for the type of this var */ int32 vartypmod; /* pg_attribute typmod value */ Index varlevelsup; /* - * for subquery variables referencing outer relations; 0 in a normal - * var, >0 means N levels up + * for subquery variables referencing outer relations; 0 in a normal var, + * >0 means N levels up */ Index varnoold; /* original value of varno, for debugging */ AttrNumber varoattno; /* original value of varattno */ @@ -139,11 +137,10 @@ typedef struct Const Datum constvalue; /* the constant's value */ bool constisnull; /* whether the constant is null (if true, * constvalue is undefined) */ - bool constbyval; /* 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; /* 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. */ } Const; /* ---------------- @@ -214,14 +211,14 @@ typedef struct ArrayRef * operation */ Oid refarraytype; /* type of the array proper */ Oid refelemtype; /* type of the array elements */ - List *refupperindexpr;/* expressions that evaluate to upper - * array indexes */ - List *reflowerindexpr;/* expressions that evaluate to lower - * array indexes */ - Expr *refexpr; /* the expression that evaluates to an - * array value */ - Expr *refassgnexpr; /* expression for the source value, or - * NULL if fetch */ + List *refupperindexpr;/* expressions that evaluate to upper array + * indexes */ + List *reflowerindexpr;/* expressions that evaluate to lower array + * indexes */ + Expr *refexpr; /* the expression that evaluates to an array + * value */ + Expr *refassgnexpr; /* expression for the source value, or NULL if + * fetch */ } ArrayRef; /* @@ -390,10 +387,9 @@ typedef struct SubLink { Expr xpr; SubLinkType subLinkType; /* EXISTS, ALL, ANY, MULTIEXPR, EXPR */ - bool useOr; /* TRUE to combine column results with - * "OR" not "AND" */ - List *lefthand; /* list of outer-query expressions on the - * left */ + bool useOr; /* TRUE to combine column results with "OR" + * not "AND" */ + List *lefthand; /* list of outer-query expressions on the left */ List *operName; /* originally specified operator name */ List *operOids; /* OIDs of actual combining operators */ Node *subselect; /* subselect as Query* or parsetree */ @@ -431,8 +427,8 @@ typedef struct SubPlan Expr xpr; /* Fields copied from original SubLink: */ SubLinkType subLinkType; /* EXISTS, ALL, ANY, MULTIEXPR, EXPR */ - bool useOr; /* TRUE to combine column results with - * "OR" not "AND" */ + bool useOr; /* TRUE to combine column results with "OR" + * not "AND" */ /* The combining operators, transformed to executable expressions: */ List *exprs; /* list of OpExpr expression trees */ List *paramIds; /* IDs of Params embedded in the above */ @@ -440,22 +436,21 @@ typedef struct SubPlan /* The subselect, transformed to a Plan: */ struct Plan *plan; /* subselect plan itself */ int plan_id; /* dummy thing because of we haven't equal - * funcs for plan nodes... actually, we - * could put *plan itself somewhere else - * (TopPlan node ?)... */ + * funcs for plan nodes... actually, we could + * put *plan itself somewhere else (TopPlan + * node ?)... */ List *rtable; /* range table for subselect */ /* Information about execution strategy: */ - bool useHashTable; /* TRUE to store subselect output in a - * hash table (implies we are doing "IN") */ - bool unknownEqFalse; /* TRUE if it's okay to return FALSE when - * the spec result is UNKNOWN; this allows - * much simpler handling of null values */ + bool useHashTable; /* TRUE to store subselect output in a hash + * table (implies we are doing "IN") */ + bool unknownEqFalse; /* TRUE if it's okay to return FALSE when the + * spec result is UNKNOWN; this allows much + * simpler handling of null values */ /* Information for passing params into and out of the subselect: */ /* setParam and parParam are lists of integers (param IDs) */ List *setParam; /* initplan subqueries have to set these * Params for parent plan */ - List *parParam; /* indices of input Params from parent - * plan */ + List *parParam; /* indices of input Params from parent plan */ List *args; /* exprs to pass as parParam values */ } SubPlan; @@ -639,10 +634,10 @@ typedef struct RowExpr Oid row_typeid; /* RECORDOID or a composite type's ID */ /* - * Note: we deliberately do NOT store a typmod. Although a typmod - * will be associated with specific RECORD types at runtime, it will - * differ for different backends, and so cannot safely be stored in - * stored parsetrees. We must assume typmod -1 for a RowExpr node. + * Note: we deliberately do NOT store a typmod. Although a typmod will be + * associated with specific RECORD types at runtime, it will differ for + * different backends, and so cannot safely be stored in stored + * parsetrees. We must assume typmod -1 for a RowExpr node. */ CoercionForm row_format; /* how to display this node */ } RowExpr; @@ -837,8 +832,8 @@ typedef struct TargetEntry * clause */ Oid resorigtbl; /* OID of column's source table */ AttrNumber resorigcol; /* column's number in source table */ - bool resjunk; /* set to true to eliminate the attribute - * from final target list */ + bool resjunk; /* set to true to eliminate the attribute from + * final target list */ } TargetEntry; |