@ -98,19 +98,32 @@ typedef struct RangeVar
typedef struct TableFunc
{
NodeTag type ;
List * ns_uris ; /* list of namespace URI expressions */
List * ns_names ; /* list of namespace names or NULL */
Node * docexpr ; /* input document expression */
Node * rowexpr ; /* row filter expression */
List * colnames ; /* column names (list of String) */
List * coltypes ; /* OID list of column type OIDs */
List * coltypmods ; /* integer list of column typmods */
List * colcollations ; /* OID list of column collation OIDs */
List * colexprs ; /* list of column filter expressions */
List * coldefexprs ; /* list of column default expressions */
Bitmapset * notnulls ; /* nullability flag for each output column */
int ordinalitycol ; /* counts from 0; -1 if none specified */
int location ; /* token location, or -1 if unknown */
/* list of namespace URI expressions */
List * ns_uris ;
/* list of namespace names or NULL */
List * ns_names ;
/* input document expression */
Node * docexpr ;
/* row filter expression */
Node * rowexpr ;
/* column names (list of String) */
List * colnames ;
/* OID list of column type OIDs */
List * coltypes ;
/* integer list of column typmods */
List * coltypmods ;
/* OID list of column collation OIDs */
List * colcollations ;
/* list of column filter expressions */
List * colexprs ;
/* list of column default expressions */
List * coldefexprs ;
/* nullability flag for each output column */
Bitmapset * notnulls ;
/* counts from 0; -1 if none specified */
int ordinalitycol ;
/* token location, or -1 if unknown */
int location ;
} TableFunc ;
/*
@ -256,18 +269,27 @@ typedef struct Const
pg_node_attr ( custom_copy_equal , custom_read_write )
Expr xpr ;
Oid consttype ; /* pg_type OID of the constant's datatype */
int32 consttypmod ; /* typmod value, if any */
Oid constcollid ; /* OID of collation, or InvalidOid if none */
int constlen ; /* typlen of the constant's datatype */
Datum constvalue ; /* the constant's value */
bool constisnull ; /* whether the constant is null (if true,
* constvalue is undefined ) */
bool constbyval ; /* whether this datatype is passed by value.
* If true , then all the information is stored
* in the Datum . If false , then the Datum
* contains a pointer to the information . */
int location ; /* token location, or -1 if unknown */
/* pg_type OID of the constant's datatype */
Oid consttype ;
/* typmod value, if any */
int32 consttypmod ;
/* OID of collation, or InvalidOid if none */
Oid constcollid ;
/* typlen of the constant's datatype */
int constlen ;
/* the constant's value */
Datum constvalue ;
/* whether the constant is null (if true, constvalue is undefined) */
bool constisnull ;
/*
* Whether this datatype is passed by value . If true , then all the
* information is stored in the Datum . If false , then the Datum contains
* a pointer to the information .
*/
bool constbyval ;
/* token location, or -1 if unknown */
int location ;
} Const ;
/*
@ -311,9 +333,12 @@ typedef struct Param
ParamKind paramkind ; /* kind of parameter. See above */
int paramid ; /* numeric ID for parameter */
Oid paramtype ; /* pg_type OID of parameter's datatype */
int32 paramtypmod ; /* typmod value, if known */
Oid paramcollid ; /* OID of collation, or InvalidOid if none */
int location ; /* token location, or -1 if unknown */
/* typmod value, if known */
int32 paramtypmod ;
/* OID of collation, or InvalidOid if none */
Oid paramcollid ;
/* token location, or -1 if unknown */
int location ;
} Param ;
/*
@ -486,16 +511,26 @@ typedef struct GroupingFunc
typedef struct WindowFunc
{
Expr xpr ;
Oid winfnoid ; /* pg_proc Oid of the function */
Oid wintype ; /* type Oid of result of the window function */
Oid wincollid ; /* OID of collation of result */
Oid inputcollid ; /* OID of collation that function should use */
List * args ; /* arguments to the window function */
Expr * aggfilter ; /* FILTER expression, if any */
Index winref ; /* index of associated WindowClause */
bool winstar ; /* true if argument list was really '*' */
bool winagg ; /* is function a simple aggregate? */
int location ; /* token location, or -1 if unknown */
/* pg_proc Oid of the function */
Oid winfnoid ;
/* type Oid of result of the window function */
Oid wintype ;
/* OID of collation of result */
Oid wincollid ;
/* OID of collation that function should use */
Oid inputcollid ;
/* arguments to the window function */
List * args ;
/* FILTER expression, if any */
Expr * aggfilter ;
/* index of associated WindowClause */
Index winref ;
/* true if argument list was really '*' */
bool winstar ;
/* is function a simple aggregate? */
bool winagg ;
/* token location, or -1 if unknown */
int location ;
} WindowFunc ;
/*
@ -539,20 +574,28 @@ typedef struct WindowFunc
typedef struct SubscriptingRef
{
Expr xpr ;
Oid refcontainertype ; /* type of the container proper */
Oid refelemtype ; /* the container type's pg_type.typelem */
Oid refrestype ; /* type of the SubscriptingRef's result */
int32 reftypmod ; /* typmod of the result */
Oid refcollid ; /* collation of result, or InvalidOid if none */
List * refupperindexpr ; /* expressions that evaluate to upper
* container indexes */
List * reflowerindexpr ; /* expressions that evaluate to lower
* container indexes , or NIL for single
* container element */
Expr * refexpr ; /* the expression that evaluates to a
* container value */
Expr * refassgnexpr ; /* expression for the source value, or NULL if
* fetch */
/* type of the container proper */
Oid refcontainertype ;
/* the container type's pg_type.typelem */
Oid refelemtype ;
/* type of the SubscriptingRef's result */
Oid refrestype ;
/* typmod of the result */
int32 reftypmod ;
/* collation of result, or InvalidOid if none */
Oid refcollid ;
/* expressions that evaluate to upper container indexes */
List * refupperindexpr ;
/*
* expressions that evaluate to lower container indexes , or NIL for single
* container element .
*/
List * reflowerindexpr ;
/* the expression that evaluates to a container value */
Expr * refexpr ;
/* expression for the source value, or NULL if fetch */
Expr * refassgnexpr ;
} SubscriptingRef ;
/*
@ -595,16 +638,28 @@ typedef enum CoercionForm
typedef struct FuncExpr
{
Expr xpr ;
Oid funcid ; /* PG_PROC OID of the function */
Oid funcresulttype ; /* PG_TYPE OID of result value */
bool funcretset ; /* true if function returns set */
bool funcvariadic ; /* true if variadic arguments have been
* combined into an array last argument */
CoercionForm funcformat ; /* how to display this function call */
Oid funccollid ; /* OID of collation of result */
Oid inputcollid ; /* OID of collation that function should use */
List * args ; /* arguments to the function */
int location ; /* token location, or -1 if unknown */
/* PG_PROC OID of the function */
Oid funcid ;
/* PG_TYPE OID of result value */
Oid funcresulttype ;
/* true if function returns set */
bool funcretset ;
/*
* true if variadic arguments have been combined into an array last
* argument
*/
bool funcvariadic ;
/* how to display this function call */
CoercionForm funcformat ;
/* OID of collation of result */
Oid funccollid ;
/* OID of collation that function should use */
Oid inputcollid ;
/* arguments to the function */
List * args ;
/* token location, or -1 if unknown */
int location ;
} FuncExpr ;
/*
@ -624,10 +679,14 @@ typedef struct FuncExpr
typedef struct NamedArgExpr
{
Expr xpr ;
Expr * arg ; /* the argument expression */
char * name ; /* the name */
int argnumber ; /* argument's number in positional notation */
int location ; /* argument name location, or -1 if unknown */
/* the argument expression */
Expr * arg ;
/* the name */
char * name ;
/* argument's number in positional notation */
int argnumber ;
/* argument name location, or -1 if unknown */
int location ;
} NamedArgExpr ;
/*
@ -838,8 +897,10 @@ typedef struct SubLink
SubLinkType subLinkType ; /* see above */
int subLinkId ; /* ID (1..n); 0 if not MULTIEXPR */
Node * testexpr ; /* outer-query test for ALL/ANY/ROWCOMPARE */
List * operName ; /* originally specified operator name */
Node * subselect ; /* subselect as Query* or raw parsetree */
/* originally specified operator name */
List * operName ;
/* subselect as Query* or raw parsetree */
Node * subselect ;
int location ; /* token location, or -1 if unknown */
} SubLink ;
@ -948,10 +1009,12 @@ typedef struct FieldSelect
Expr xpr ;
Expr * arg ; /* input expression */
AttrNumber fieldnum ; /* attribute number of field to extract */
Oid resulttype ; /* type of the field (result type of this
* node ) */
int32 resulttypmod ; /* output typmod (usually -1) */
Oid resultcollid ; /* OID of collation of the field */
/* type of the field (result type of this node) */
Oid resulttype ;
/* output typmod (usually -1) */
int32 resulttypmod ;
/* OID of collation of the field */
Oid resultcollid ;
} FieldSelect ;
/* ----------------
@ -977,8 +1040,10 @@ typedef struct FieldStore
Expr xpr ;
Expr * arg ; /* input tuple value */
List * newvals ; /* new value(s) for field(s) */
List * fieldnums ; /* integer list of field attnums */
Oid resulttype ; /* type of result (same as type of arg) */
/* integer list of field attnums */
List * fieldnums ;
/* type of result (same as type of arg) */
Oid resulttype ;
/* Like RowExpr, we deliberately omit a typmod and collation here */
} FieldStore ;
@ -1000,9 +1065,12 @@ typedef struct RelabelType
Expr xpr ;
Expr * arg ; /* input expression */
Oid resulttype ; /* output type of coercion expression */
int32 resulttypmod ; /* output typmod (usually -1) */
Oid resultcollid ; /* OID of collation, or InvalidOid if none */
CoercionForm relabelformat ; /* how to display this node */
/* output typmod (usually -1) */
int32 resulttypmod ;
/* OID of collation, or InvalidOid if none */
Oid resultcollid ;
/* how to display this node */
CoercionForm relabelformat ;
int location ; /* token location, or -1 if unknown */
} RelabelType ;
@ -1021,8 +1089,10 @@ typedef struct CoerceViaIO
Expr * arg ; /* input expression */
Oid resulttype ; /* output type of coercion */
/* output typmod is not stored, but is presumed -1 */
Oid resultcollid ; /* OID of collation, or InvalidOid if none */
CoercionForm coerceformat ; /* how to display this node */
/* OID of collation, or InvalidOid if none */
Oid resultcollid ;
/* how to display this node */
CoercionForm coerceformat ;
int location ; /* token location, or -1 if unknown */
} CoerceViaIO ;
@ -1045,9 +1115,12 @@ typedef struct ArrayCoerceExpr
Expr * arg ; /* input expression (yields an array) */
Expr * elemexpr ; /* expression representing per-element work */
Oid resulttype ; /* output type of coercion (an array type) */
int32 resulttypmod ; /* output typmod (also element typmod) */
Oid resultcollid ; /* OID of collation, or InvalidOid if none */
CoercionForm coerceformat ; /* how to display this node */
/* output typmod (also element typmod) */
int32 resulttypmod ;
/* OID of collation, or InvalidOid if none */
Oid resultcollid ;
/* how to display this node */
CoercionForm coerceformat ;
int location ; /* token location, or -1 if unknown */
} ArrayCoerceExpr ;
@ -1070,7 +1143,8 @@ typedef struct ConvertRowtypeExpr
Expr * arg ; /* input expression */
Oid resulttype ; /* output type (always a composite type) */
/* Like RowExpr, we deliberately omit a typmod and collation here */
CoercionForm convertformat ; /* how to display this node */
/* how to display this node */
CoercionForm convertformat ;
int location ; /* token location, or -1 if unknown */
} ConvertRowtypeExpr ;
@ -1114,8 +1188,10 @@ typedef struct CollateExpr
typedef struct CaseExpr
{
Expr xpr ;
Oid casetype ; /* type of expression result */
Oid casecollid ; /* OID of collation, or InvalidOid if none */
/* type of expression result */
Oid casetype ;
/* OID of collation, or InvalidOid if none */
Oid casecollid ;
Expr * arg ; /* implicit equality comparison argument */
List * args ; /* the arguments (list of WHEN clauses) */
Expr * defresult ; /* the default result (ELSE clause) */
@ -1157,8 +1233,10 @@ typedef struct CaseTestExpr
{
Expr xpr ;
Oid typeId ; /* type for substituted value */
int32 typeMod ; /* typemod for substituted value */
Oid collation ; /* collation for the substituted value */
/* typemod for substituted value */
int32 typeMod ;
/* collation for the substituted value */
Oid collation ;
} CaseTestExpr ;
/*
@ -1172,12 +1250,18 @@ typedef struct CaseTestExpr
typedef struct ArrayExpr
{
Expr xpr ;
Oid array_typeid ; /* type of expression result */
Oid array_collid ; /* OID of collation, or InvalidOid if none */
Oid element_typeid ; /* common type of array elements */
List * elements ; /* the array elements or sub-arrays */
bool multidims ; /* true if elements are sub-arrays */
int location ; /* token location, or -1 if unknown */
/* type of expression result */
Oid array_typeid ;
/* OID of collation, or InvalidOid if none */
Oid array_collid ;
/* common type of array elements */
Oid element_typeid ;
/* the array elements or sub-arrays */
List * elements ;
/* true if elements are sub-arrays */
bool multidims ;
/* token location, or -1 if unknown */
int location ;
} ArrayExpr ;
/*
@ -1205,7 +1289,9 @@ typedef struct RowExpr
{
Expr xpr ;
List * args ; /* the fields */
Oid row_typeid ; /* RECORDOID or a composite type's ID */
/* RECORDOID or a composite type's ID */
Oid row_typeid ;
/*
* row_typeid cannot be a domain over composite , only plain composite . To
@ -1219,8 +1305,13 @@ typedef struct RowExpr
* We don ' t need to store a collation either . The result type is
* necessarily composite , and composite types never have a collation .
*/
CoercionForm row_format ; /* how to display this node */
List * colnames ; /* list of String, or NIL */
/* how to display this node */
CoercionForm row_format ;
/* list of String, or NIL */
List * colnames ;
int location ; /* token location, or -1 if unknown */
} RowExpr ;
@ -1252,12 +1343,19 @@ typedef enum RowCompareType
typedef struct RowCompareExpr
{
Expr xpr ;
RowCompareType rctype ; /* LT LE GE or GT, never EQ or NE */
List * opnos ; /* OID list of pairwise comparison ops */
List * opfamilies ; /* OID list of containing operator families */
List * inputcollids ; /* OID list of collations for comparisons */
List * largs ; /* the left-hand input arguments */
List * rargs ; /* the right-hand input arguments */
/* LT LE GE or GT, never EQ or NE */
RowCompareType rctype ;
/* OID list of pairwise comparison ops */
List * opnos ;
/* OID list of containing operator families */
List * opfamilies ;
/* OID list of collations for comparisons */
List * inputcollids ;
/* the left-hand input arguments */
List * largs ;
/* the right-hand input arguments */
List * rargs ;
} RowCompareExpr ;
/*
@ -1266,10 +1364,14 @@ typedef struct RowCompareExpr
typedef struct CoalesceExpr
{
Expr xpr ;
Oid coalescetype ; /* type of expression result */
Oid coalescecollid ; /* OID of collation, or InvalidOid if none */
List * args ; /* the arguments */
int location ; /* token location, or -1 if unknown */
/* type of expression result */
Oid coalescetype ;
/* OID of collation, or InvalidOid if none */
Oid coalescecollid ;
/* the arguments */
List * args ;
/* token location, or -1 if unknown */
int location ;
} CoalesceExpr ;
/*
@ -1284,12 +1386,18 @@ typedef enum MinMaxOp
typedef struct MinMaxExpr
{
Expr xpr ;
Oid minmaxtype ; /* common type of arguments and result */
Oid minmaxcollid ; /* OID of collation of result */
Oid inputcollid ; /* OID of collation that function should use */
MinMaxOp op ; /* function to execute */
List * args ; /* the arguments */
int location ; /* token location, or -1 if unknown */
/* common type of arguments and result */
Oid minmaxtype ;
/* OID of collation of result */
Oid minmaxcollid ;
/* OID of collation that function should use */
Oid inputcollid ;
/* function to execute */
MinMaxOp op ;
/* the arguments */
List * args ;
/* token location, or -1 if unknown */
int location ;
} MinMaxExpr ;
/*
@ -1324,15 +1432,23 @@ typedef enum XmlOptionType
typedef struct XmlExpr
{
Expr xpr ;
XmlExprOp op ; /* xml function ID */
char * name ; /* name in xml(NAME foo ...) syntaxes */
List * named_args ; /* non-XML expressions for xml_attributes */
List * arg_names ; /* parallel list of String values */
List * args ; /* list of expressions */
XmlOptionType xmloption ; /* DOCUMENT or CONTENT */
Oid type ; /* target type/typmod for XMLSERIALIZE */
/* xml function ID */
XmlExprOp op ;
/* name in xml(NAME foo ...) syntaxes */
char * name ;
/* non-XML expressions for xml_attributes */
List * named_args ;
/* parallel list of String values */
List * arg_names ;
/* list of expressions */
List * args ;
/* DOCUMENT or CONTENT */
XmlOptionType xmloption ;
/* target type/typmod for XMLSERIALIZE */
Oid type ;
int32 typmod ;
int location ; /* token location, or -1 if unknown */
/* token location, or -1 if unknown */
int location ;
} XmlExpr ;
/* ----------------
@ -1364,7 +1480,8 @@ typedef struct NullTest
Expr xpr ;
Expr * arg ; /* input expression */
NullTestType nulltesttype ; /* IS NULL, IS NOT NULL */
bool argisrow ; /* T to perform field-by-field null checks */
/* T to perform field-by-field null checks */
bool argisrow ;
int location ; /* token location, or -1 if unknown */
} NullTest ;
@ -1404,9 +1521,12 @@ typedef struct CoerceToDomain
Expr xpr ;
Expr * arg ; /* input expression */
Oid resulttype ; /* domain type ID (result type) */
int32 resulttypmod ; /* output typmod (currently always -1) */
Oid resultcollid ; /* OID of collation, or InvalidOid if none */
CoercionForm coercionformat ; /* how to display this node */
/* output typmod (currently always -1) */
int32 resulttypmod ;
/* OID of collation, or InvalidOid if none */
Oid resultcollid ;
/* how to display this node */
CoercionForm coercionformat ;
int location ; /* token location, or -1 if unknown */
} CoerceToDomain ;
@ -1422,10 +1542,14 @@ typedef struct CoerceToDomain
typedef struct CoerceToDomainValue
{
Expr xpr ;
Oid typeId ; /* type for substituted value */
int32 typeMod ; /* typemod for substituted value */
Oid collation ; /* collation for the substituted value */
int location ; /* token location, or -1 if unknown */
/* type for substituted value */
Oid typeId ;
/* typemod for substituted value */
int32 typeMod ;
/* collation for the substituted value */
Oid collation ;
/* token location, or -1 if unknown */
int location ;
} CoerceToDomainValue ;
/*
@ -1438,10 +1562,14 @@ typedef struct CoerceToDomainValue
typedef struct SetToDefault
{
Expr xpr ;
Oid typeId ; /* type for substituted value */
int32 typeMod ; /* typemod for substituted value */
Oid collation ; /* collation for the substituted value */
int location ; /* token location, or -1 if unknown */
/* type for substituted value */
Oid typeId ;
/* typemod for substituted value */
int32 typeMod ;
/* collation for the substituted value */
Oid collation ;
/* token location, or -1 if unknown */
int location ;
} SetToDefault ;
/*
@ -1552,15 +1680,20 @@ typedef struct InferenceElem
typedef struct TargetEntry
{
Expr xpr ;
Expr * expr ; /* expression to evaluate */
AttrNumber resno ; /* attribute number (see notes above) */
char * resname ; /* name of the column (could be NULL) */
Index ressortgroupref ; /* nonzero if referenced by a sort/group
* clause */
Oid resorigtbl ; /* OID of column's source table */
AttrNumber resorigcol ; /* column's number in source table */
bool resjunk ; /* set to true to eliminate the attribute from
* final target list */
/* expression to evaluate */
Expr * expr ;
/* attribute number (see notes above) */
AttrNumber resno ;
/* name of the column (could be NULL) */
char * resname ;
/* nonzero if referenced by a sort/group clause */
Index ressortgroupref ;
/* OID of column's source table */
Oid resorigtbl ;
/* column's number in source table */
AttrNumber resorigcol ;
/* set to true to eliminate the attribute from final target list */
bool resjunk ;
} TargetEntry ;
@ -1642,11 +1775,16 @@ typedef struct JoinExpr
bool isNatural ; /* Natural join? Will need to shape table */
Node * larg ; /* left subtree */
Node * rarg ; /* right subtree */
List * usingClause ; /* USING clause, if any (list of String) */
Alias * join_using_alias ; /* alias attached to USING clause, if any */
Node * quals ; /* qualifiers on join, if any */
Alias * alias ; /* user-written alias clause, if any */
int rtindex ; /* RT index assigned for join, or 0 */
/* USING clause, if any (list of String) */
List * usingClause ;
/* alias attached to USING clause, if any */
Alias * join_using_alias ;
/* qualifiers on join, if any */
Node * quals ;
/* user-written alias clause, if any */
Alias * alias ;
/* RT index assigned for join, or 0 */
int rtindex ;
} JoinExpr ;
/*----------
Michael Paquier
3 years ago