diff options
Diffstat (limited to 'src/include/access/strat.h')
| -rw-r--r-- | src/include/access/strat.h | 99 |
1 files changed, 54 insertions, 45 deletions
diff --git a/src/include/access/strat.h b/src/include/access/strat.h index 5cd23255efa..035582ef766 100644 --- a/src/include/access/strat.h +++ b/src/include/access/strat.h @@ -1,13 +1,13 @@ /*------------------------------------------------------------------------- * * strat.h-- - * index strategy type definitions - * (separated out from original istrat.h to avoid circular refs) + * index strategy type definitions + * (separated out from original istrat.h to avoid circular refs) * * * Copyright (c) 1994, Regents of the University of California * - * $Id: strat.h,v 1.4 1996/11/04 07:45:27 scrappy Exp $ + * $Id: strat.h,v 1.5 1997/09/07 04:56:14 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -18,67 +18,76 @@ typedef uint16 StrategyNumber; -#define InvalidStrategy 0 +#define InvalidStrategy 0 -typedef struct StrategyTransformMapData { - StrategyNumber strategy[1]; /* VARIABLE LENGTH ARRAY */ -} StrategyTransformMapData; /* VARIABLE LENGTH STRUCTURE */ +typedef struct StrategyTransformMapData +{ + StrategyNumber strategy[1];/* VARIABLE LENGTH ARRAY */ +} StrategyTransformMapData; /* VARIABLE LENGTH -typedef StrategyTransformMapData *StrategyTransformMap; + * STRUCTURE */ -typedef struct StrategyOperatorData { - StrategyNumber strategy; - bits16 flags; /* scan qualification flags h/skey.h */ -} StrategyOperatorData; +typedef StrategyTransformMapData *StrategyTransformMap; -typedef StrategyOperatorData *StrategyOperator; +typedef struct StrategyOperatorData +{ + StrategyNumber strategy; + bits16 flags; /* scan qualification flags h/skey.h */ +} StrategyOperatorData; -typedef struct StrategyTermData { /* conjunctive term */ - uint16 degree; - StrategyOperatorData operatorData[1]; /* VARIABLE LENGTH */ -} StrategyTermData; /* VARIABLE LENGTH STRUCTURE */ +typedef StrategyOperatorData *StrategyOperator; -typedef StrategyTermData *StrategyTerm; +typedef struct StrategyTermData +{ /* conjunctive term */ + uint16 degree; + StrategyOperatorData operatorData[1]; /* VARIABLE LENGTH */ +} StrategyTermData; /* VARIABLE LENGTH STRUCTURE */ -typedef struct StrategyExpressionData { /* disjunctive normal form */ - StrategyTerm term[1]; /* VARIABLE LENGTH ARRAY */ -} StrategyExpressionData; /* VARIABLE LENGTH STRUCTURE */ +typedef StrategyTermData *StrategyTerm; -typedef StrategyExpressionData *StrategyExpression; +typedef struct StrategyExpressionData +{ /* disjunctive normal form */ + StrategyTerm term[1]; /* VARIABLE LENGTH ARRAY */ +} StrategyExpressionData; /* VARIABLE LENGTH STRUCTURE */ -typedef struct StrategyEvaluationData { - StrategyNumber maxStrategy; - StrategyTransformMap negateTransform; - StrategyTransformMap commuteTransform; - StrategyTransformMap negateCommuteTransform; - StrategyExpression expression[12]; /* XXX VARIABLE LENGTH */ -} StrategyEvaluationData; /* VARIABLE LENGTH STRUCTURE */ +typedef StrategyExpressionData *StrategyExpression; -typedef StrategyEvaluationData *StrategyEvaluation; +typedef struct StrategyEvaluationData +{ + StrategyNumber maxStrategy; + StrategyTransformMap negateTransform; + StrategyTransformMap commuteTransform; + StrategyTransformMap negateCommuteTransform; + StrategyExpression expression[12]; /* XXX VARIABLE LENGTH */ +} StrategyEvaluationData; /* VARIABLE LENGTH STRUCTURE */ + +typedef StrategyEvaluationData *StrategyEvaluation; /* * StrategyTransformMapIsValid -- - * Returns true iff strategy transformation map is valid. + * Returns true iff strategy transformation map is valid. */ -#define StrategyTransformMapIsValid(transform) PointerIsValid(transform) +#define StrategyTransformMapIsValid(transform) PointerIsValid(transform) -#ifndef CorrectStrategies /* XXX this should be removable */ -#define AMStrategies(foo) 12 -#else /* !defined(CorrectStrategies) */ -#define AMStrategies(foo) (foo) -#endif /* !defined(CorrectStrategies) */ +#ifndef CorrectStrategies /* XXX this should be removable */ +#define AMStrategies(foo) 12 +#else /* !defined(CorrectStrategies) */ +#define AMStrategies(foo) (foo) +#endif /* !defined(CorrectStrategies) */ -typedef struct StrategyMapData { +typedef struct StrategyMapData +{ ScanKeyData entry[1]; /* VARIABLE LENGTH ARRAY */ -} StrategyMapData; /* VARIABLE LENGTH STRUCTURE */ +} StrategyMapData;/* VARIABLE LENGTH STRUCTURE */ -typedef StrategyMapData *StrategyMap; +typedef StrategyMapData *StrategyMap; -typedef struct IndexStrategyData { - StrategyMapData strategyMapData[1]; /* VARIABLE LENGTH ARRAY */ -} IndexStrategyData; /* VARIABLE LENGTH STRUCTURE */ +typedef struct IndexStrategyData +{ + StrategyMapData strategyMapData[1]; /* VARIABLE LENGTH ARRAY */ +} IndexStrategyData; /* VARIABLE LENGTH STRUCTURE */ -typedef IndexStrategyData *IndexStrategy; +typedef IndexStrategyData *IndexStrategy; -#endif /*STRAT_H */ +#endif /* STRAT_H */ |