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Remove dashes in comments that don't need them, rewrap with pgindent.

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This commit is contained in:
Bruce Momjian
2001-03-22 06:16:21 +00:00
parent 9e1552607a
commit 0686d49da0
100 changed files with 4522 additions and 6023 deletions
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69
src/backend/executor/execScan.c
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@ -12,7 +12,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execScan.c,v 1.16 2001/03/22 03:59:26 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execScan.c,v 1.17 2001/03/22 06:16:12 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -55,20 +55,18 @@ ExecScan(Scan *node,
ExprDoneCond isDone;
TupleTableSlot *resultSlot;
/* ----------------
* Fetch data from node
* ----------------
/*
* Fetch data from node
*/
estate = node->plan.state;
scanstate = node->scanstate;
econtext = scanstate->cstate.cs_ExprContext;
qual = node->plan.qual;
/* ----------------
* Check to see if we're still projecting out tuples from a previous
* scan tuple (because there is a function-returning-set in the
* projection expressions). If so, try to project another one.
* ----------------
/*
* Check to see if we're still projecting out tuples from a previous
* scan tuple (because there is a function-returning-set in the
* projection expressions). If so, try to project another one.
*/
if (scanstate->cstate.cs_TupFromTlist)
{
@ -79,11 +77,10 @@ ExecScan(Scan *node,
scanstate->cstate.cs_TupFromTlist = false;
}
/* ----------------
* Reset per-tuple memory context to free any expression evaluation
* storage allocated in the previous tuple cycle. Note this can't
* happen until we're done projecting out tuples from a scan tuple.
* ----------------
/*
* Reset per-tuple memory context to free any expression evaluation
* storage allocated in the previous tuple cycle. Note this can't
* happen until we're done projecting out tuples from a scan tuple.
*/
ResetExprContext(econtext);
@ -97,12 +94,11 @@ ExecScan(Scan *node,
slot = (*accessMtd) (node);
/* ----------------
* if the slot returned by the accessMtd contains
* NULL, then it means there is nothing more to scan
* so we just return an empty slot, being careful to use
* the projection result slot so it has correct tupleDesc.
* ----------------
/*
* if the slot returned by the accessMtd contains NULL, then it
* means there is nothing more to scan so we just return an empty
* slot, being careful to use the projection result slot so it has
* correct tupleDesc.
*/
if (TupIsNull(slot))
{
@ -112,29 +108,27 @@ ExecScan(Scan *node,
true);
}
/* ----------------
* place the current tuple into the expr context
* ----------------
/*
* place the current tuple into the expr context
*/
econtext->ecxt_scantuple = slot;
/* ----------------
* check that the current tuple satisfies the qual-clause
/*
* check that the current tuple satisfies the qual-clause
*
* check for non-nil qual here to avoid a function call to
* ExecQual() when the qual is nil ... saves only a few cycles,
* but they add up ...
* ----------------
* check for non-nil qual here to avoid a function call to ExecQual()
* when the qual is nil ... saves only a few cycles, but they add
* up ...
*/
if (!qual || ExecQual(qual, econtext, false))
{
/* ----------------
* Found a satisfactory scan tuple.
/*
* Found a satisfactory scan tuple.
*
* Form a projection tuple, store it in the result tuple
* slot and return it --- unless we find we can project no
* tuples from this scan tuple, in which case continue scan.
* ----------------
* Form a projection tuple, store it in the result tuple slot and
* return it --- unless we find we can project no tuples from
* this scan tuple, in which case continue scan.
*/
resultSlot = ExecProject(scanstate->cstate.cs_ProjInfo, &isDone);
if (isDone != ExprEndResult)
@ -144,9 +138,8 @@ ExecScan(Scan *node,
}
}
/* ----------------
* Tuple fails qual, so free per-tuple memory and try again.
* ----------------
/*
* Tuple fails qual, so free per-tuple memory and try again.
*/
ResetExprContext(econtext);
}