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author | Bruce Momjian <bruce@momjian.us> | 2014-05-06 12:12:18 -0400 |
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committer | Bruce Momjian <bruce@momjian.us> | 2014-05-06 12:12:18 -0400 |
commit | 0a7832005792fa6dad171f9cadb8d587fe0dd800 (patch) | |
tree | 365cfc42c521a52607e41394b08ef44d338d8fc1 /src/backend/executor/nodeWindowAgg.c | |
parent | fb85cd4320414c3f6e9c8bc69ec944200ae1e493 (diff) | |
download | postgresql-0a7832005792fa6dad171f9cadb8d587fe0dd800.tar.gz postgresql-0a7832005792fa6dad171f9cadb8d587fe0dd800.zip |
pgindent run for 9.4
This includes removing tabs after periods in C comments, which was
applied to back branches, so this change should not effect backpatching.
Diffstat (limited to 'src/backend/executor/nodeWindowAgg.c')
-rw-r--r-- | src/backend/executor/nodeWindowAgg.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/src/backend/executor/nodeWindowAgg.c b/src/backend/executor/nodeWindowAgg.c index 40a925331c9..a0470d3eab2 100644 --- a/src/backend/executor/nodeWindowAgg.c +++ b/src/backend/executor/nodeWindowAgg.c @@ -4,7 +4,7 @@ * routines to handle WindowAgg nodes. * * A WindowAgg node evaluates "window functions" across suitable partitions - * of the input tuple set. Any one WindowAgg works for just a single window + * of the input tuple set. Any one WindowAgg works for just a single window * specification, though it can evaluate multiple window functions sharing * identical window specifications. The input tuples are required to be * delivered in sorted order, with the PARTITION BY columns (if any) as @@ -14,7 +14,7 @@ * * Since window functions can require access to any or all of the rows in * the current partition, we accumulate rows of the partition into a - * tuplestore. The window functions are called using the WindowObject API + * tuplestore. The window functions are called using the WindowObject API * so that they can access those rows as needed. * * We also support using plain aggregate functions as window functions. @@ -280,7 +280,7 @@ advance_windowaggregate(WindowAggState *winstate, { /* * For a strict transfn, nothing happens when there's a NULL input; we - * just keep the prior transValue. Note transValueCount doesn't + * just keep the prior transValue. Note transValueCount doesn't * change either. */ for (i = 1; i <= numArguments; i++) @@ -330,7 +330,7 @@ advance_windowaggregate(WindowAggState *winstate, } /* - * OK to call the transition function. Set winstate->curaggcontext while + * OK to call the transition function. Set winstate->curaggcontext while * calling it, for possible use by AggCheckCallContext. */ InitFunctionCallInfoData(*fcinfo, &(peraggstate->transfn), @@ -362,7 +362,7 @@ advance_windowaggregate(WindowAggState *winstate, /* * If pass-by-ref datatype, must copy the new value into aggcontext and - * pfree the prior transValue. But if transfn returned a pointer to its + * pfree the prior transValue. But if transfn returned a pointer to its * first input, we don't need to do anything. */ if (!peraggstate->transtypeByVal && @@ -485,7 +485,7 @@ advance_windowaggregate_base(WindowAggState *winstate, } /* - * OK to call the inverse transition function. Set + * OK to call the inverse transition function. Set * winstate->curaggcontext while calling it, for possible use by * AggCheckCallContext. */ @@ -513,7 +513,7 @@ advance_windowaggregate_base(WindowAggState *winstate, /* * If pass-by-ref datatype, must copy the new value into aggcontext and - * pfree the prior transValue. But if invtransfn returned a pointer to + * pfree the prior transValue. But if invtransfn returned a pointer to * its first input, we don't need to do anything. * * Note: the checks for null values here will never fire, but it seems @@ -827,7 +827,7 @@ eval_windowaggregates(WindowAggState *winstate) * * We assume that aggregates using the shared context always restart if * *any* aggregate restarts, and we may thus clean up the shared - * aggcontext if that is the case. Private aggcontexts are reset by + * aggcontext if that is the case. Private aggcontexts are reset by * initialize_windowaggregate() if their owning aggregate restarts. If we * aren't restarting an aggregate, we need to free any previously saved * result for it, else we'll leak memory. @@ -864,9 +864,9 @@ eval_windowaggregates(WindowAggState *winstate) * (i.e., frameheadpos) and aggregatedupto, while restarted aggregates * contain no rows. If there are any restarted aggregates, we must thus * begin aggregating anew at frameheadpos, otherwise we may simply - * continue at aggregatedupto. We must remember the old value of + * continue at aggregatedupto. We must remember the old value of * aggregatedupto to know how long to skip advancing non-restarted - * aggregates. If we modify aggregatedupto, we must also clear + * aggregates. If we modify aggregatedupto, we must also clear * agg_row_slot, per the loop invariant below. */ aggregatedupto_nonrestarted = winstate->aggregatedupto; @@ -881,7 +881,7 @@ eval_windowaggregates(WindowAggState *winstate) * Advance until we reach a row not in frame (or end of partition). * * Note the loop invariant: agg_row_slot is either empty or holds the row - * at position aggregatedupto. We advance aggregatedupto after processing + * at position aggregatedupto. We advance aggregatedupto after processing * a row. */ for (;;) @@ -1142,7 +1142,7 @@ spool_tuples(WindowAggState *winstate, int64 pos) /* * If the tuplestore has spilled to disk, alternate reading and writing - * becomes quite expensive due to frequent buffer flushes. It's cheaper + * becomes quite expensive due to frequent buffer flushes. It's cheaper * to force the entire partition to get spooled in one go. * * XXX this is a horrid kluge --- it'd be better to fix the performance @@ -1239,7 +1239,7 @@ release_partition(WindowAggState *winstate) * to our window framing rule * * The caller must have already determined that the row is in the partition - * and fetched it into a slot. This function just encapsulates the framing + * and fetched it into a slot. This function just encapsulates the framing * rules. */ static bool @@ -1341,7 +1341,7 @@ row_is_in_frame(WindowAggState *winstate, int64 pos, TupleTableSlot *slot) * * Uses the winobj's read pointer for any required fetches; hence, if the * frame mode is one that requires row comparisons, the winobj's mark must - * not be past the currently known frame head. Also uses the specified slot + * not be past the currently known frame head. Also uses the specified slot * for any required fetches. */ static void @@ -1446,7 +1446,7 @@ update_frameheadpos(WindowObject winobj, TupleTableSlot *slot) * * Uses the winobj's read pointer for any required fetches; hence, if the * frame mode is one that requires row comparisons, the winobj's mark must - * not be past the currently known frame tail. Also uses the specified slot + * not be past the currently known frame tail. Also uses the specified slot * for any required fetches. */ static void @@ -1789,8 +1789,8 @@ ExecInitWindowAgg(WindowAgg *node, EState *estate, int eflags) winstate->ss.ps.state = estate; /* - * Create expression contexts. We need two, one for per-input-tuple - * processing and one for per-output-tuple processing. We cheat a little + * Create expression contexts. We need two, one for per-input-tuple + * processing and one for per-output-tuple processing. We cheat a little * by using ExecAssignExprContext() to build both. */ ExecAssignExprContext(estate, &winstate->ss.ps); @@ -2288,7 +2288,7 @@ initialize_peragg(WindowAggState *winstate, WindowFunc *wfunc, /* * Insist that forward and inverse transition functions have the same - * strictness setting. Allowing them to differ would require handling + * strictness setting. Allowing them to differ would require handling * more special cases in advance_windowaggregate and * advance_windowaggregate_base, for no discernible benefit. This should * have been checked at agg definition time, but we must check again in @@ -2467,7 +2467,7 @@ window_gettupleslot(WindowObject winobj, int64 pos, TupleTableSlot *slot) * requested amount of space. Subsequent calls just return the same chunk. * * Memory obtained this way is normally used to hold state that should be - * automatically reset for each new partition. If a window function wants + * automatically reset for each new partition. If a window function wants * to hold state across the whole query, fcinfo->fn_extra can be used in the * usual way for that. */ |