diff options
Diffstat (limited to 'src/backend/executor/execQual.c')
| -rw-r--r-- | src/backend/executor/execQual.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/src/backend/executor/execQual.c b/src/backend/executor/execQual.c index 833c4ed6a4e..f162e92fc71 100644 --- a/src/backend/executor/execQual.c +++ b/src/backend/executor/execQual.c @@ -26,7 +26,7 @@ * ExecProject() is used to make tuple projections. Rather then * trying to speed it up, the execution plan should be pre-processed * to facilitate attribute sharing between nodes wherever possible, - * instead of doing needless copying. -cim 5/31/91 + * instead of doing needless copying. -cim 5/31/91 * * During expression evaluation, we check_stack_depth only in * ExecMakeFunctionResult (and substitute routines) rather than at every @@ -201,7 +201,7 @@ static Datum ExecEvalCurrentOfExpr(ExprState *exprstate, ExprContext *econtext, * * Note: for notational simplicity we declare these functions as taking the * specific type of ExprState that they work on. This requires casting when - * assigning the function pointer in ExecInitExpr. Be careful that the + * assigning the function pointer in ExecInitExpr. Be careful that the * function signature is declared correctly, because the cast suppresses * automatic checking! * @@ -236,7 +236,7 @@ static Datum ExecEvalCurrentOfExpr(ExprState *exprstate, ExprContext *econtext, * The caller should already have switched into the temporary memory * context econtext->ecxt_per_tuple_memory. The convenience entry point * ExecEvalExprSwitchContext() is provided for callers who don't prefer to - * do the switch in an outer loop. We do not do the switch in these routines + * do the switch in an outer loop. We do not do the switch in these routines * because it'd be a waste of cycles during nested expression evaluation. * ---------------------------------------------------------------- */ @@ -366,7 +366,7 @@ ExecEvalArrayRef(ArrayRefExprState *astate, * We might have a nested-assignment situation, in which the * refassgnexpr is itself a FieldStore or ArrayRef that needs to * obtain and modify the previous value of the array element or slice - * being replaced. If so, we have to extract that value from the + * being replaced. If so, we have to extract that value from the * array and pass it down via the econtext's caseValue. It's safe to * reuse the CASE mechanism because there cannot be a CASE between * here and where the value would be needed, and an array assignment @@ -439,7 +439,7 @@ ExecEvalArrayRef(ArrayRefExprState *astate, /* * For assignment to varlena arrays, we handle a NULL original array * by substituting an empty (zero-dimensional) array; insertion of the - * new element will result in a singleton array value. It does not + * new element will result in a singleton array value. It does not * matter whether the new element is NULL. */ if (*isNull) @@ -829,11 +829,11 @@ ExecEvalWholeRowVar(WholeRowVarExprState *wrvstate, ExprContext *econtext, * We really only care about numbers of attributes and data types. * Also, we can ignore type mismatch on columns that are dropped in * the destination type, so long as (1) the physical storage matches - * or (2) the actual column value is NULL. Case (1) is helpful in + * or (2) the actual column value is NULL. Case (1) is helpful in * some cases involving out-of-date cached plans, while case (2) is * expected behavior in situations such as an INSERT into a table with * dropped columns (the planner typically generates an INT4 NULL - * regardless of the dropped column type). If we find a dropped + * regardless of the dropped column type). If we find a dropped * column and cannot verify that case (1) holds, we have to use * ExecEvalWholeRowSlow to check (2) for each row. */ @@ -1491,7 +1491,7 @@ ExecEvalFuncArgs(FunctionCallInfo fcinfo, * ExecPrepareTuplestoreResult * * Subroutine for ExecMakeFunctionResult: prepare to extract rows from a - * tuplestore function result. We must set up a funcResultSlot (unless + * tuplestore function result. We must set up a funcResultSlot (unless * already done in a previous call cycle) and verify that the function * returned the expected tuple descriptor. */ @@ -1536,7 +1536,7 @@ ExecPrepareTuplestoreResult(FuncExprState *fcache, } /* - * If function provided a tupdesc, cross-check it. We only really need to + * If function provided a tupdesc, cross-check it. We only really need to * do this for functions returning RECORD, but might as well do it always. */ if (resultDesc) @@ -1719,7 +1719,7 @@ restart: if (fcache->func.fn_retset || hasSetArg) { /* - * We need to return a set result. Complain if caller not ready to + * We need to return a set result. Complain if caller not ready to * accept one. */ if (isDone == NULL) @@ -2046,7 +2046,7 @@ ExecMakeTableFunctionResult(ExprState *funcexpr, /* * Normally the passed expression tree will be a FuncExprState, since the * grammar only allows a function call at the top level of a table - * function reference. However, if the function doesn't return set then + * function reference. However, if the function doesn't return set then * the planner might have replaced the function call via constant-folding * or inlining. So if we see any other kind of expression node, execute * it via the general ExecEvalExpr() code; the only difference is that we @@ -2085,7 +2085,7 @@ ExecMakeTableFunctionResult(ExprState *funcexpr, * * Note: ideally, we'd do this in the per-tuple context, but then the * argument values would disappear when we reset the context in the - * inner loop. So do it in caller context. Perhaps we should make a + * inner loop. So do it in caller context. Perhaps we should make a * separate context just to hold the evaluated arguments? */ argDone = ExecEvalFuncArgs(&fcinfo, fcache->args, econtext); @@ -2171,7 +2171,7 @@ ExecMakeTableFunctionResult(ExprState *funcexpr, * Can't do anything very useful with NULL rowtype values. For a * function returning set, we consider this a protocol violation * (but another alternative would be to just ignore the result and - * "continue" to get another row). For a function not returning + * "continue" to get another row). For a function not returning * set, we fall out of the loop; we'll cons up an all-nulls result * row below. */ @@ -2305,7 +2305,7 @@ no_function_result: } /* - * If function provided a tupdesc, cross-check it. We only really need to + * If function provided a tupdesc, cross-check it. We only really need to * do this for functions returning RECORD, but might as well do it always. */ if (rsinfo.setDesc) @@ -2483,7 +2483,7 @@ ExecEvalDistinct(FuncExprState *fcache, * * Evaluate "scalar op ANY/ALL (array)". The operator always yields boolean, * and we combine the results across all array elements using OR and AND - * (for ANY and ALL respectively). Of course we short-circuit as soon as + * (for ANY and ALL respectively). Of course we short-circuit as soon as * the result is known. */ static Datum @@ -2670,7 +2670,7 @@ ExecEvalScalarArrayOp(ScalarArrayOpExprState *sstate, * qualification to conjunctive normal form. If we ever get * an AND to evaluate, we can be sure that it's not a top-level * clause in the qualification, but appears lower (as a function - * argument, for example), or in the target list. Not that you + * argument, for example), or in the target list. Not that you * need to know this, mind you... * ---------------------------------------------------------------- */ @@ -2801,7 +2801,7 @@ ExecEvalAnd(BoolExprState *andExpr, ExprContext *econtext, /* ---------------------------------------------------------------- * ExecEvalConvertRowtype * - * Evaluate a rowtype coercion operation. This may require + * Evaluate a rowtype coercion operation. This may require * rearranging field positions. * ---------------------------------------------------------------- */ @@ -2930,7 +2930,7 @@ ExecEvalCase(CaseExprState *caseExpr, ExprContext *econtext, /* * if we have a true test, then we return the result, since the case - * statement is satisfied. A NULL result from the test is not + * statement is satisfied. A NULL result from the test is not * considered true. */ if (DatumGetBool(clause_value) && !*isNull) @@ -3144,7 +3144,7 @@ ExecEvalArray(ArrayExprState *astate, ExprContext *econtext, * If all items were null or empty arrays, return an empty array; * otherwise, if some were and some weren't, raise error. (Note: we * must special-case this somehow to avoid trying to generate a 1-D - * array formed from empty arrays. It's not ideal...) + * array formed from empty arrays. It's not ideal...) */ if (haveempty) { @@ -4315,7 +4315,7 @@ ExecEvalExprSwitchContext(ExprState *expression, * ExecInitExpr: prepare an expression tree for execution * * This function builds and returns an ExprState tree paralleling the given - * Expr node tree. The ExprState tree can then be handed to ExecEvalExpr + * Expr node tree. The ExprState tree can then be handed to ExecEvalExpr * for execution. Because the Expr tree itself is read-only as far as * ExecInitExpr and ExecEvalExpr are concerned, several different executions * of the same plan tree can occur concurrently. @@ -4326,9 +4326,9 @@ ExecEvalExprSwitchContext(ExprState *expression, * * Any Aggref, WindowFunc, or SubPlan nodes found in the tree are added to the * lists of such nodes held by the parent PlanState. Otherwise, we do very - * little initialization here other than building the state-node tree. Any + * little initialization here other than building the state-node tree. Any * nontrivial work associated with initializing runtime info for a node should - * happen during the first actual evaluation of that node. (This policy lets + * happen during the first actual evaluation of that node. (This policy lets * us avoid work if the node is never actually evaluated.) * * Note: there is no ExecEndExpr function; we assume that any resource @@ -5133,7 +5133,7 @@ ExecQual(List *qual, ExprContext *econtext, bool resultForNull) oldContext = MemoryContextSwitchTo(econtext->ecxt_per_tuple_memory); /* - * Evaluate the qual conditions one at a time. If we find a FALSE result, + * Evaluate the qual conditions one at a time. If we find a FALSE result, * we can stop evaluating and return FALSE --- the AND result must be * FALSE. Also, if we find a NULL result when resultForNull is FALSE, we * can stop and return FALSE --- the AND result must be FALSE or NULL in @@ -5292,7 +5292,7 @@ ExecTargetList(List *targetlist, else { /* - * We have some done and some undone sets. Restart the done ones + * We have some done and some undone sets. Restart the done ones * so that we can deliver a tuple (if possible). */ foreach(tl, targetlist) |