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Ye-old pgindent run. Same 4-space tabs.
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@@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: primnodes.h,v 1.40 2000/02/20 21:32:16 tgl Exp $
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* $Id: primnodes.h,v 1.41 2000/04/12 17:16:40 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@@ -29,7 +29,7 @@
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* restype - type of the value
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* restypmod - type-specific modifier of the value
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* resname - name of the resdom (could be NULL)
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* ressortgroupref - nonzero if referenced by a sort/group clause
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* ressortgroupref - nonzero if referenced by a sort/group clause
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* reskey - order of key in a sort (for those > 0)
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* reskeyop - sort operator's regproc Oid
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* resjunk - set to true to eliminate the attribute
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@@ -37,12 +37,12 @@
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*
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* Notes:
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* ressortgroupref is the parse/plan-time representation of ORDER BY and
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* GROUP BY items. Targetlist entries with ressortgroupref=0 are not
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* GROUP BY items. Targetlist entries with ressortgroupref=0 are not
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* sort/group items. If ressortgroupref>0, then this item is an ORDER BY or
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* GROUP BY value. No two entries in a targetlist may have the same nonzero
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* GROUP BY value. No two entries in a targetlist may have the same nonzero
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* ressortgroupref --- but there is no particular meaning to the nonzero
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* values, except as tags. (For example, one must not assume that lower
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* ressortgroupref means a more significant sort key.) The order of the
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* values, except as tags. (For example, one must not assume that lower
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* ressortgroupref means a more significant sort key.) The order of the
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* associated SortClause or GroupClause lists determine the semantics.
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*
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* reskey and reskeyop are the execution-time representation of sorting.
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@@ -329,7 +329,7 @@ typedef struct Aggref
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* subselect - subselect as Query* or parsetree
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*
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* A SubLink represents a subselect appearing in an expression, and in some
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* cases also the combining operator(s) just above it. The subLinkType
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* cases also the combining operator(s) just above it. The subLinkType
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* indicates the form of the expression represented:
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* EXISTS_SUBLINK EXISTS(SELECT ...)
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* ALL_SUBLINK (lefthand) op ALL (SELECT ...)
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@@ -350,21 +350,21 @@ typedef struct Aggref
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* NOTE: lefthand and oper have varying meanings depending on where you look
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* in the parse/plan pipeline:
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* 1. gram.y delivers a list of the (untransformed) lefthand expressions in
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* lefthand, and sets oper to a one-element list containing the string
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* name of the operator.
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* lefthand, and sets oper to a one-element list containing the string
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* name of the operator.
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* 2. The parser's expression transformation transforms lefthand normally,
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* and replaces oper with a list of Oper nodes, one per lefthand
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* expression. These nodes represent the parser's resolution of exactly
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* which operator to apply to each pair of lefthand and targetlist
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* expressions. However, we have not constructed actual Expr trees for
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* these operators yet. This is the representation seen in saved rules
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* and in the rewriter.
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* and replaces oper with a list of Oper nodes, one per lefthand
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* expression. These nodes represent the parser's resolution of exactly
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* which operator to apply to each pair of lefthand and targetlist
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* expressions. However, we have not constructed actual Expr trees for
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* these operators yet. This is the representation seen in saved rules
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* and in the rewriter.
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* 3. Finally, the planner converts the oper list to a list of normal Expr
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* nodes representing the application of the operator(s) to the lefthand
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* expressions and values from the inner targetlist. The inner
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* targetlist items are represented by placeholder Param or Const nodes.
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* The lefthand field is set to NIL, since its expressions are now in
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* the Expr list. This representation is passed to the executor.
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* nodes representing the application of the operator(s) to the lefthand
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* expressions and values from the inner targetlist. The inner
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* targetlist items are represented by placeholder Param or Const nodes.
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* The lefthand field is set to NIL, since its expressions are now in
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* the Expr list. This representation is passed to the executor.
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*
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* Planner routines that might see either representation 2 or 3 can tell
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* the difference by checking whether lefthand is NIL or not. Also,
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@@ -372,7 +372,7 @@ typedef struct Aggref
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* found in SubLinks that are children of SubPlan nodes.
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*
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* In EXISTS and EXPR SubLinks, both lefthand and oper are unused and are
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* always NIL. useor is not significant either for these sublink types.
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* always NIL. useor is not significant either for these sublink types.
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* ----------------
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*/
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typedef enum SubLinkType
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@@ -432,12 +432,12 @@ typedef struct Array
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* refelemlength - length of the array element type
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* refelembyval - is the element type pass-by-value?
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* refupperindexpr - expressions that evaluate to upper array indexes
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* reflowerindexpr - expressions that evaluate to lower array indexes
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* reflowerindexpr - expressions that evaluate to lower array indexes
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* refexpr - the expression that evaluates to an array value
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* refassgnexpr - expression for the source value, or NULL if fetch
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*
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* If reflowerindexpr = NIL, then we are fetching or storing a single array
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* element at the subscripts given by refupperindexpr. Otherwise we are
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* element at the subscripts given by refupperindexpr. Otherwise we are
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* fetching or storing an array slice, that is a rectangular subarray
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* with lower and upper bounds given by the index expressions.
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* reflowerindexpr must be the same length as refupperindexpr when it
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@@ -445,7 +445,7 @@ typedef struct Array
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*
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* Note: array types can be fixed-length (refattrlength > 0), but only
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* when the element type is itself fixed-length. Otherwise they are
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* varlena structures and have refattrlength = -1. In any case,
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* varlena structures and have refattrlength = -1. In any case,
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* an array type is never pass-by-value.
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*
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* Note: currently, refelemtype is NOT the element type, but the array type,
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