diff options
Diffstat (limited to 'src/include/nodes/primnodes.h')
| -rw-r--r-- | src/include/nodes/primnodes.h | 240 |
1 files changed, 176 insertions, 64 deletions
diff --git a/src/include/nodes/primnodes.h b/src/include/nodes/primnodes.h index 51505eee85d..732c00c0985 100644 --- a/src/include/nodes/primnodes.h +++ b/src/include/nodes/primnodes.h @@ -63,14 +63,27 @@ typedef enum OnCommitAction typedef struct RangeVar { NodeTag type; - char *catalogname; /* the catalog (database) name, or NULL */ - char *schemaname; /* the schema name, or NULL */ - char *relname; /* the relation/sequence name */ - bool inh; /* expand rel by inheritance? recursively act - * on children? */ - char relpersistence; /* see RELPERSISTENCE_* in pg_class.h */ - Alias *alias; /* table alias & optional column aliases */ - int location; /* token location, or -1 if unknown */ + + /* the catalog (database) name, or NULL */ + char *catalogname; + + /* the schema name, or NULL */ + char *schemaname; + + /* the relation/sequence name */ + char *relname; + + /* expand rel by inheritance? recursively act on children? */ + bool inh; + + /* see RELPERSISTENCE_* in pg_class.h */ + char relpersistence; + + /* table alias & optional column aliases */ + Alias *alias; + + /* token location, or -1 if unknown */ + int location; } RangeVar; typedef enum TableFuncType @@ -195,19 +208,38 @@ typedef struct Expr typedef struct Var { Expr xpr; - int varno; /* index of this var's relation in the range - * table, or INNER_VAR/OUTER_VAR/etc */ - AttrNumber varattno; /* attribute number of this var, or zero for - * all attrs ("whole-row Var") */ - Oid vartype; /* pg_type OID for the type of this var */ - int32 vartypmod; /* pg_attribute typmod value */ - Oid varcollid; /* OID of collation, or InvalidOid if none */ - Index varlevelsup; /* for subquery variables referencing outer - * relations; 0 in a normal var, >0 means N - * levels up */ - Index varnosyn; /* syntactic relation index (0 if unknown) */ - AttrNumber varattnosyn; /* syntactic attribute number */ - int location; /* token location, or -1 if unknown */ + + /* + * index of this var's relation in the range table, or + * INNER_VAR/OUTER_VAR/etc + */ + int varno; + + /* + * attribute number of this var, or zero for all attrs ("whole-row Var") + */ + AttrNumber varattno; + + /* pg_type OID for the type of this var */ + Oid vartype; + /* pg_attribute typmod value */ + int32 vartypmod; + /* OID of collation, or InvalidOid if none */ + Oid varcollid; + + /* + * for subquery variables referencing outer relations; 0 in a normal var, + * >0 means N levels up + */ + Index varlevelsup; + + /* syntactic relation index (0 if unknown) */ + Index varnosyn; + /* syntactic attribute number */ + AttrNumber varattnosyn; + + /* token location, or -1 if unknown */ + int location; } Var; /* @@ -329,26 +361,66 @@ typedef struct Param typedef struct Aggref { Expr xpr; - Oid aggfnoid; /* pg_proc Oid of the aggregate */ - Oid aggtype; /* type Oid of result of the aggregate */ - Oid aggcollid; /* OID of collation of result */ - Oid inputcollid; /* OID of collation that function should use */ - Oid aggtranstype; /* type Oid of aggregate's transition value */ - List *aggargtypes; /* type Oids of direct and aggregated args */ - List *aggdirectargs; /* direct arguments, if an ordered-set agg */ - List *args; /* aggregated arguments and sort expressions */ - List *aggorder; /* ORDER BY (list of SortGroupClause) */ - List *aggdistinct; /* DISTINCT (list of SortGroupClause) */ - Expr *aggfilter; /* FILTER expression, if any */ - bool aggstar; /* true if argument list was really '*' */ - bool aggvariadic; /* true if variadic arguments have been - * combined into an array last argument */ - char aggkind; /* aggregate kind (see pg_aggregate.h) */ - Index agglevelsup; /* > 0 if agg belongs to outer query */ - AggSplit aggsplit; /* expected agg-splitting mode of parent Agg */ - int aggno; /* unique ID within the Agg node */ - int aggtransno; /* unique ID of transition state in the Agg */ - int location; /* token location, or -1 if unknown */ + + /* pg_proc Oid of the aggregate */ + Oid aggfnoid; + + /* type Oid of result of the aggregate */ + Oid aggtype; + + /* OID of collation of result */ + Oid aggcollid; + + /* OID of collation that function should use */ + Oid inputcollid; + + /* type Oid of aggregate's transition value */ + Oid aggtranstype; + + /* type Oids of direct and aggregated args */ + List *aggargtypes; + + /* direct arguments, if an ordered-set agg */ + List *aggdirectargs; + + /* aggregated arguments and sort expressions */ + List *args; + + /* ORDER BY (list of SortGroupClause) */ + List *aggorder; + + /* DISTINCT (list of SortGroupClause) */ + List *aggdistinct; + + /* FILTER expression, if any */ + Expr *aggfilter; + + /* true if argument list was really '*' */ + bool aggstar; + + /* + * true if variadic arguments have been combined into an array last + * argument + */ + bool aggvariadic; + + /* aggregate kind (see pg_aggregate.h) */ + char aggkind; + + /* > 0 if agg belongs to outer query */ + Index agglevelsup; + + /* expected agg-splitting mode of parent Agg */ + AggSplit aggsplit; + + /* unique ID within the Agg node */ + int aggno; + + /* unique ID of transition state in the Agg */ + int aggtransno; + + /* token location, or -1 if unknown */ + int location; } Aggref; /* @@ -378,12 +450,21 @@ typedef struct Aggref typedef struct GroupingFunc { Expr xpr; - List *args; /* arguments, not evaluated but kept for - * benefit of EXPLAIN etc. */ - List *refs; /* ressortgrouprefs of arguments */ - List *cols; /* actual column positions set by planner */ - Index agglevelsup; /* same as Aggref.agglevelsup */ - int location; /* token location */ + + /* arguments, not evaluated but kept for benefit of EXPLAIN etc. */ + List *args; + + /* ressortgrouprefs of arguments */ + List *refs; + + /* actual column positions set by planner */ + List *cols; + + /* same as Aggref.agglevelsup */ + Index agglevelsup; + + /* token location */ + int location; } GroupingFunc; /* @@ -548,14 +629,30 @@ typedef struct NamedArgExpr typedef struct OpExpr { Expr xpr; - Oid opno; /* PG_OPERATOR OID of the operator */ - Oid opfuncid; /* PG_PROC OID of underlying function */ - Oid opresulttype; /* PG_TYPE OID of result value */ - bool opretset; /* true if operator returns set */ - Oid opcollid; /* OID of collation of result */ - Oid inputcollid; /* OID of collation that operator should use */ - List *args; /* arguments to the operator (1 or 2) */ - int location; /* token location, or -1 if unknown */ + + /* PG_OPERATOR OID of the operator */ + Oid opno; + + /* PG_PROC OID of underlying function */ + Oid opfuncid; + + /* PG_TYPE OID of result value */ + Oid opresulttype; + + /* true if operator returns set */ + bool opretset; + + /* OID of collation of result */ + Oid opcollid; + + /* OID of collation that operator should use */ + Oid inputcollid; + + /* arguments to the operator (1 or 2) */ + List *args; + + /* token location, or -1 if unknown */ + int location; } OpExpr; /* @@ -605,15 +702,30 @@ typedef OpExpr NullIfExpr; typedef struct ScalarArrayOpExpr { Expr xpr; - Oid opno; /* PG_OPERATOR OID of the operator */ - Oid opfuncid; /* PG_PROC OID of comparison function */ - Oid hashfuncid; /* PG_PROC OID of hash func or InvalidOid */ - Oid negfuncid; /* PG_PROC OID of negator of opfuncid function - * or InvalidOid. See above */ - bool useOr; /* true for ANY, false for ALL */ - Oid inputcollid; /* OID of collation that operator should use */ - List *args; /* the scalar and array operands */ - int location; /* token location, or -1 if unknown */ + + /* PG_OPERATOR OID of the operator */ + Oid opno; + + /* PG_PROC OID of comparison function */ + Oid opfuncid; + + /* PG_PROC OID of hash func or InvalidOid */ + Oid hashfuncid; + + /* PG_PROC OID of negator of opfuncid function or InvalidOid. See above */ + Oid negfuncid; + + /* true for ANY, false for ALL */ + bool useOr; + + /* OID of collation that operator should use */ + Oid inputcollid; + + /* the scalar and array operands */ + List *args; + + /* token location, or -1 if unknown */ + int location; } ScalarArrayOpExpr; /* |