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Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 1148 |
1 files changed, 609 insertions, 539 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 8492dcde1d8..c24d27918c2 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -1,844 +1,914 @@ /*------------------------------------------------------------------------- * * parsenodes.h-- - * definitions for parse tree nodes + * definitions for parse tree nodes * * * Copyright (c) 1994, Regents of the University of California * - * $Id: parsenodes.h,v 1.23 1997/09/01 08:11:57 vadim Exp $ + * $Id: parsenodes.h,v 1.24 1997/09/07 04:58:44 momjian Exp $ * *------------------------------------------------------------------------- */ -#ifndef PARSENODES_H -#define PARSENODES_H +#ifndef PARSENODES_H +#define PARSENODES_H #include <utils/tqual.h> #include <nodes/primnodes.h> /***************************************************************************** - * Query Tree + * Query Tree *****************************************************************************/ /* * Query - - * all statments are turned into a Query tree (via transformStmt) - * for further processing by the optimizer - * utility statements (i.e. non-optimizable statements) - * have the *utilityStmt field set. + * all statments are turned into a Query tree (via transformStmt) + * for further processing by the optimizer + * utility statements (i.e. non-optimizable statements) + * have the *utilityStmt field set. * * we need the isPortal flag because portal names can be null too; can * get rid of it if we support CURSOR as a commandType. * */ -typedef struct Query { - NodeTag type; - - CmdType commandType; /* select|insert|update|delete|utility */ - - Node *utilityStmt; /* non-null if this is a non-optimizable - statement */ - - int resultRelation; /* target relation (index to rtable) */ - char *into; /* portal (cursor) name */ - bool isPortal; /* is this a retrieve into portal? */ - bool isBinary; /* binary portal? */ - - char *uniqueFlag; /* NULL, '*', or Unique attribute name */ - List *sortClause; /* a list of SortClause's */ - - List *rtable; /* list of range table entries */ - List *targetList; /* target list (of TargetEntry) */ - Node *qual; /* qualifications */ - - List *groupClause; /* list of columns to specified in GROUP BY */ - Node *havingQual; /* qualification of each group */ - - int qry_numAgg; /* number of aggregates in the target list */ - Aggreg **qry_aggs; /* the aggregates */ - - /* internal to planner */ - List *base_relation_list_; /* base relation list */ - List *join_relation_list_; /* list of relations generated by joins */ - bool query_is_archival_; /* archival query flag */ -} Query; +typedef struct Query +{ + NodeTag type; + + CmdType commandType;/* select|insert|update|delete|utility */ + + Node *utilityStmt;/* non-null if this is a non-optimizable + * statement */ + + int resultRelation; /* target relation (index to + * rtable) */ + char *into; /* portal (cursor) name */ + bool isPortal; /* is this a retrieve into portal? */ + bool isBinary; /* binary portal? */ + + char *uniqueFlag; /* NULL, '*', or Unique attribute name */ + List *sortClause; /* a list of SortClause's */ + + List *rtable; /* list of range table entries */ + List *targetList; /* target list (of TargetEntry) */ + Node *qual; /* qualifications */ + + List *groupClause;/* list of columns to specified in GROUP + * BY */ + Node *havingQual; /* qualification of each group */ + + int qry_numAgg; /* number of aggregates in the target list */ + Aggreg **qry_aggs; /* the aggregates */ + + /* internal to planner */ + List *base_relation_list_; /* base relation list */ + List *join_relation_list_; /* list of relations + * generated by joins */ + bool query_is_archival_; /* archival query flag */ +} Query; /***************************************************************************** - * Other Statements (no optimizations required) + * Other Statements (no optimizations required) * - * Some of them require a little bit of transformation (which is also - * done by transformStmt). The whole structure is then passed on to - * ProcessUtility (by-passing the optimization step) as the utilityStmt - * field in Query. + * Some of them require a little bit of transformation (which is also + * done by transformStmt). The whole structure is then passed on to + * ProcessUtility (by-passing the optimization step) as the utilityStmt + * field in Query. *****************************************************************************/ /* ---------------------- - * Add Column Statement + * Add Column Statement * ---------------------- */ -typedef struct AddAttrStmt { - NodeTag type; - char *relname; /* the relation to add attr */ - bool inh; /* add recursively to children? */ - struct ColumnDef *colDef; /* the attribute definition */ -} AddAttrStmt; +typedef struct AddAttrStmt +{ + NodeTag type; + char *relname; /* the relation to add attr */ + bool inh; /* add recursively to children? */ + struct ColumnDef *colDef; /* the attribute definition */ +} AddAttrStmt; /* ---------------------- - * Change ACL Statement + * Change ACL Statement * ---------------------- */ -typedef struct ChangeACLStmt { - NodeTag type; - struct AclItem *aclitem; - unsigned modechg; - List *relNames; -} ChangeACLStmt; +typedef struct ChangeACLStmt +{ + NodeTag type; + struct AclItem *aclitem; + unsigned modechg; + List *relNames; +} ChangeACLStmt; /* ---------------------- - * Close Portal Statement + * Close Portal Statement * ---------------------- */ -typedef struct ClosePortalStmt { - NodeTag type; - char *portalname; /* name of the portal (cursor) */ -} ClosePortalStmt; +typedef struct ClosePortalStmt +{ + NodeTag type; + char *portalname; /* name of the portal (cursor) */ +} ClosePortalStmt; /* ---------------------- - * Copy Statement + * Copy Statement * ---------------------- */ -typedef struct CopyStmt { - NodeTag type; - bool binary; /* is a binary copy? */ - char *relname; /* the relation to copy */ - bool oids; /* copy oid's? */ - int direction; /* TO or FROM */ - char *filename; /* if NULL, use stdin/stdout */ - char *delimiter; /* delimiter character, \t by default*/ -} CopyStmt; +typedef struct CopyStmt +{ + NodeTag type; + bool binary; /* is a binary copy? */ + char *relname; /* the relation to copy */ + bool oids; /* copy oid's? */ + int direction; /* TO or FROM */ + char *filename; /* if NULL, use stdin/stdout */ + char *delimiter; /* delimiter character, \t by default */ +} CopyStmt; /* ---------------------- - * Create Table Statement + * Create Table Statement * ---------------------- */ -typedef enum ArchType { - ARCH_NONE, ARCH_LIGHT, ARCH_HEAVY /* archive mode */ -} ArchType; +typedef enum ArchType +{ + ARCH_NONE, ARCH_LIGHT, ARCH_HEAVY /* archive mode */ +} ArchType; -typedef struct CreateStmt { - NodeTag type; - char *relname; /* the relation to create */ - List *tableElts; /* column definitions - list of ColumnDef */ - List *inhRelnames; /* relations to inherit from - list of Value (string) */ - ArchType archiveType; /* archive mode (ARCH_NONE if none */ - int location; /* smgrid (-1 if none) */ - int archiveLoc; /* smgrid (-1 if none) */ - List *constraints; /* list of constraints (ConstaintDef) */ -} CreateStmt; +typedef struct CreateStmt +{ + NodeTag type; + char *relname; /* the relation to create */ + List *tableElts; /* column definitions list of ColumnDef */ + List *inhRelnames;/* relations to inherit from list of Value + * (string) */ + ArchType archiveType;/* archive mode (ARCH_NONE if none */ + int location; /* smgrid (-1 if none) */ + int archiveLoc; /* smgrid (-1 if none) */ + List *constraints;/* list of constraints (ConstaintDef) */ +} CreateStmt; -typedef enum ConstrType { - CONSTR_NONE, CONSTR_CHECK /* type of constaints */ -} ConstrType; +typedef enum ConstrType +{ + CONSTR_NONE, CONSTR_CHECK /* type of constaints */ +} ConstrType; -typedef struct ConstraintDef { - ConstrType type; - char *name; /* name */ - void *def; /* definition */ -} ConstraintDef; +typedef struct ConstraintDef +{ + ConstrType type; + char *name; /* name */ + void *def; /* definition */ +} ConstraintDef; /* ---------------------- - * Create/Drop TRIGGER Statements + * Create/Drop TRIGGER Statements * ---------------------- */ -typedef struct CreateTrigStmt { - NodeTag type; - char *trigname; /* TRIGGER' name */ - char *relname; /* triggered relation */ - char *funcname; /* function to call (or NULL) */ - List *args; /* list of (T_String) Values or NULL */ - bool before; /* BEFORE/AFTER */ - bool row; /* ROW/STATEMENT */ - char actions[4]; /* Insert, Update, Delete */ - char *lang; /* NULL (which means Clanguage) */ - char *text; /* AS 'text' */ - List *attr; /* UPDATE OF a, b,... (NI) or NULL */ - char *when; /* WHEN 'a > 10 ...' (NI) or NULL */ -} CreateTrigStmt; +typedef struct CreateTrigStmt +{ + NodeTag type; + char *trigname; /* TRIGGER' name */ + char *relname; /* triggered relation */ + char *funcname; /* function to call (or NULL) */ + List *args; /* list of (T_String) Values or NULL */ + bool before; /* BEFORE/AFTER */ + bool row; /* ROW/STATEMENT */ + char actions[4]; /* Insert, Update, Delete */ + char *lang; /* NULL (which means Clanguage) */ + char *text; /* AS 'text' */ + List *attr; /* UPDATE OF a, b,... (NI) or NULL */ + char *when; /* WHEN 'a > 10 ...' (NI) or NULL */ +} CreateTrigStmt; -typedef struct DropTrigStmt { - NodeTag type; - char *trigname; /* TRIGGER' name */ - char *relname; /* triggered relation */ -} DropTrigStmt; +typedef struct DropTrigStmt +{ + NodeTag type; + char *trigname; /* TRIGGER' name */ + char *relname; /* triggered relation */ +} DropTrigStmt; /* ---------------------- - * Create SEQUENCE Statement + * Create SEQUENCE Statement * ---------------------- */ -typedef struct CreateSeqStmt { - NodeTag type; - char *seqname; /* the relation to create */ - List *options; -} CreateSeqStmt; +typedef struct CreateSeqStmt +{ + NodeTag type; + char *seqname; /* the relation to create */ + List *options; +} CreateSeqStmt; /* ---------------------- - * Create Version Statement + * Create Version Statement * ---------------------- */ -typedef struct VersionStmt { - NodeTag type; - char *relname; /* the new relation */ - int direction; /* FORWARD | BACKWARD */ - char *fromRelname; /* relation to create a version */ - char *date; /* date of the snapshot */ -} VersionStmt; +typedef struct VersionStmt +{ + NodeTag type; + char *relname; /* the new relation */ + int direction; /* FORWARD | BACKWARD */ + char *fromRelname;/* relation to create a version */ + char *date; /* date of the snapshot */ +} VersionStmt; /* ---------------------- - * Create {Operator|Type|Aggregate} Statement + * Create {Operator|Type|Aggregate} Statement * ---------------------- */ -typedef struct DefineStmt { - NodeTag type; - int defType; /* OPERATOR|P_TYPE|AGGREGATE*/ - char *defname; - List *definition; /* a list of DefElem */ -} DefineStmt; +typedef struct DefineStmt +{ + NodeTag type; + int defType; /* OPERATOR|P_TYPE|AGGREGATE */ + char *defname; + List *definition; /* a list of DefElem */ +} DefineStmt; /* ---------------------- - * Drop Table Statement + * Drop Table Statement * ---------------------- */ -typedef struct DestroyStmt { - NodeTag type; - List *relNames; /* relations to be dropped */ - bool sequence; -} DestroyStmt; +typedef struct DestroyStmt +{ + NodeTag type; + List *relNames; /* relations to be dropped */ + bool sequence; +} DestroyStmt; /* ---------------------- - * Extend Index Statement + * Extend Index Statement * ---------------------- */ -typedef struct ExtendStmt { - NodeTag type; - char *idxname; /* name of the index */ - Node *whereClause; /* qualifications */ - List *rangetable; /* range table, filled in - by transformStmt() */ -} ExtendStmt; +typedef struct ExtendStmt +{ + NodeTag type; + char *idxname; /* name of the index */ + Node *whereClause;/* qualifications */ + List *rangetable; /* range table, filled in by + * transformStmt() */ +} ExtendStmt; /* ---------------------- - * Begin Recipe Statement + * Begin Recipe Statement * ---------------------- */ -typedef struct RecipeStmt { - NodeTag type; - char *recipeName; /* name of the recipe*/ -} RecipeStmt; +typedef struct RecipeStmt +{ + NodeTag type; + char *recipeName; /* name of the recipe */ +} RecipeStmt; /* ---------------------- - * Fetch Statement + * Fetch Statement * ---------------------- */ -typedef struct FetchStmt { - NodeTag type; - int direction; /* FORWARD or BACKWARD */ - int howMany; /* amount to fetch ("ALL" --> 0) */ - char *portalname; /* name of portal (cursor) */ -} FetchStmt; +typedef struct FetchStmt +{ + NodeTag type; + int direction; /* FORWARD or BACKWARD */ + int howMany; /* amount to fetch ("ALL" --> 0) */ + char *portalname; /* name of portal (cursor) */ +} FetchStmt; /* ---------------------- - * Create Index Statement + * Create Index Statement * ---------------------- */ -typedef struct IndexStmt { - NodeTag type; - char *idxname; /* name of the index */ - char *relname; /* name of relation to index on */ - char *accessMethod; /* name of acess methood (eg. btree) */ - List *indexParams; /* a list of IndexElem */ - List *withClause; /* a list of ParamString */ - Node *whereClause; /* qualifications */ - List *rangetable; /* range table, filled in - by transformStmt() */ - bool *lossy; /* is index lossy? */ - bool unique; /* is index unique? */ -} IndexStmt; +typedef struct IndexStmt +{ + NodeTag type; + char *idxname; /* name of the index */ + char *relname; /* name of relation to index on */ + char *accessMethod; /* name of acess methood (eg. + * btree) */ + List *indexParams;/* a list of IndexElem */ + List *withClause; /* a list of ParamString */ + Node *whereClause;/* qualifications */ + List *rangetable; /* range table, filled in by + * transformStmt() */ + bool *lossy; /* is index lossy? */ + bool unique; /* is index unique? */ +} IndexStmt; /* ---------------------- - * Move Statement (Not implemented) + * Move Statement (Not implemented) * ---------------------- */ -typedef struct MoveStmt { - NodeTag type; - int direction; /* FORWARD or BACKWARD */ - bool to; - int where; - char *portalname; -} MoveStmt; +typedef struct MoveStmt +{ + NodeTag type; + int direction; /* FORWARD or BACKWARD */ + bool to; + int where; + char *portalname; +} MoveStmt; /* ---------------------- - * Create Function Statement + * Create Function Statement * ---------------------- */ -typedef struct ProcedureStmt { - NodeTag type; - char *funcname; /* name of function to create */ - List *defArgs; /* list of definitions - a list of strings (as Value *) */ - Node *returnType; /* the return type (as a string or - a TypeName (ie.setof) */ - List *withClause; /* a list of ParamString */ - char *as; /* the SQL statement or filename */ - char *language; /* C or SQL */ -} ProcedureStmt; +typedef struct ProcedureStmt +{ + NodeTag type; + char *funcname; /* name of function to create */ + List *defArgs; /* list of definitions a list of strings + * (as Value *) */ + Node *returnType; /* the return type (as a string or a + * TypeName (ie.setof) */ + List *withClause; /* a list of ParamString */ + char *as; /* the SQL statement or filename */ + char *language; /* C or SQL */ +} ProcedureStmt; /* ---------------------- - * Purge Statement + * Purge Statement * ---------------------- */ -typedef struct PurgeStmt { - NodeTag type; - char *relname; /* relation to purge */ - char *beforeDate; /* purge before this date */ - char *afterDate; /* purge after this date */ -} PurgeStmt; +typedef struct PurgeStmt +{ + NodeTag type; + char *relname; /* relation to purge */ + char *beforeDate; /* purge before this date */ + char *afterDate; /* purge after this date */ +} PurgeStmt; /* ---------------------- - * Drop Aggregate Statement + * Drop Aggregate Statement * ---------------------- */ -typedef struct RemoveAggrStmt { - NodeTag type; - char *aggname; /* aggregate to drop */ - char *aggtype; /* for this type */ -} RemoveAggrStmt; +typedef struct RemoveAggrStmt +{ + NodeTag type; + char *aggname; /* aggregate to drop */ + char *aggtype; /* for this type */ +} RemoveAggrStmt; /* ---------------------- - * Drop Function Statement + * Drop Function Statement * ---------------------- */ -typedef struct RemoveFuncStmt { - NodeTag type; - char *funcname; /* function to drop */ - List *args; /* types of the arguments */ -} RemoveFuncStmt; +typedef struct RemoveFuncStmt +{ + NodeTag type; + char *funcname; /* function to drop */ + List *args; /* types of the arguments */ +} RemoveFuncStmt; /* ---------------------- - * Drop Operator Statement + * Drop Operator Statement * ---------------------- */ -typedef struct RemoveOperStmt { - NodeTag type; - char *opname; /* operator to drop */ - List *args; /* types of the arguments */ -} RemoveOperStmt; +typedef struct RemoveOperStmt +{ + NodeTag type; + char *opname; /* operator to drop */ + List *args; /* types of the arguments */ +} RemoveOperStmt; /* ---------------------- - * Drop {Type|Index|Rule|View} Statement + * Drop {Type|Index|Rule|View} Statement * ---------------------- */ -typedef struct RemoveStmt { - NodeTag type; - int removeType; /* P_TYPE|INDEX|RULE|VIEW */ - char *name; /* name to drop */ -} RemoveStmt; +typedef struct RemoveStmt +{ + NodeTag type; + int removeType; /* P_TYPE|INDEX|RULE|VIEW */ + char *name; /* name to drop */ +} RemoveStmt; /* ---------------------- - * Alter Table Statement + * Alter Table Statement * ---------------------- */ -typedef struct RenameStmt { - NodeTag type; - char *relname; /* relation to be altered */ - bool inh; /* recursively alter children? */ - char *column; /* if NULL, rename the relation name - to the new name. Otherwise, rename - this column name. */ - char *newname; /* the new name */ -} RenameStmt; +typedef struct RenameStmt +{ + NodeTag type; + char *relname; /* relation to be altered */ + bool inh; /* recursively alter children? */ + char *column; /* if NULL, rename the relation name to + * the new name. Otherwise, rename this + * column name. */ + char *newname; /* the new name */ +} RenameStmt; /* ---------------------- - * Create Rule Statement + * Create Rule Statement * ---------------------- */ -typedef struct RuleStmt { - NodeTag type; - char *rulename; /* name of the rule */ - Node *whereClause; /* qualifications */ - CmdType event; /* RETRIEVE */ - struct Attr *object; /* object affected */ - bool instead; /* is a 'do instead'? */ - List *actions; /* the action statements */ -} RuleStmt; +typedef struct RuleStmt +{ + NodeTag type; + char *rulename; /* name of the rule */ + Node *whereClause;/* qualifications */ + CmdType event; /* RETRIEVE */ + struct Attr *object; /* object affected */ + bool instead; /* is a 'do instead'? */ + List *actions; /* the action statements */ +} RuleStmt; /* ---------------------- - * Notify Statement + * Notify Statement * ---------------------- */ -typedef struct NotifyStmt { - NodeTag type; - char *relname; /* relation to notify */ -} NotifyStmt; +typedef struct NotifyStmt +{ + NodeTag type; + char *relname; /* relation to notify */ +} NotifyStmt; /* ---------------------- - * Listen Statement + * Listen Statement * ---------------------- */ -typedef struct ListenStmt { - NodeTag type; - char *relname; /* relation to listen on */ -} ListenStmt; +typedef struct ListenStmt +{ + NodeTag type; + char *relname; /* relation to listen on */ +} ListenStmt; /* ---------------------- - * {Begin|Abort|End} Transaction Statement + * {Begin|Abort|End} Transaction Statement * ---------------------- */ -typedef struct TransactionStmt { - NodeTag type; - int command; /* BEGIN|END|ABORT */ -} TransactionStmt; +typedef struct TransactionStmt +{ + NodeTag type; + int command; /* BEGIN|END|ABORT */ +} TransactionStmt; /* ---------------------- - * Create View Statement + * Create View Statement * ---------------------- */ -typedef struct ViewStmt { - NodeTag type; - char *viewname; /* name of the view */ - Query *query; /* the SQL statement */ -} ViewStmt; +typedef struct ViewStmt +{ + NodeTag type; + char *viewname; /* name of the view */ + Query *query; /* the SQL statement */ +} ViewStmt; /* ---------------------- - * Load Statement + * Load Statement * ---------------------- */ -typedef struct LoadStmt { - NodeTag type; - char *filename; /* file to load */ -} LoadStmt; +typedef struct LoadStmt +{ + NodeTag type; + char *filename; /* file to load */ +} LoadStmt; /* ---------------------- - * Createdb Statement + * Createdb Statement * ---------------------- */ -typedef struct CreatedbStmt { - NodeTag type; - char *dbname; /* database to create */ -} CreatedbStmt; +typedef struct CreatedbStmt +{ + NodeTag type; + char *dbname; /* database to create */ +} CreatedbStmt; /* ---------------------- - * Destroydb Statement + * Destroydb Statement * ---------------------- */ -typedef struct DestroydbStmt { - NodeTag type; - char *dbname; /* database to drop */ -} DestroydbStmt; +typedef struct DestroydbStmt +{ + NodeTag type; + char *dbname; /* database to drop */ +} DestroydbStmt; /* ---------------------- - * Cluster Statement (support pbrown's cluster index implementation) + * Cluster Statement (support pbrown's cluster index implementation) * ---------------------- */ -typedef struct ClusterStmt { - NodeTag type; - char *relname; /* relation being indexed */ - char *indexname; /* original index defined */ -} ClusterStmt; +typedef struct ClusterStmt +{ + NodeTag type; + char *relname; /* relation being indexed */ + char *indexname; /* original index defined */ +} ClusterStmt; /* ---------------------- - * Vacuum Statement + * Vacuum Statement * ---------------------- */ -typedef struct VacuumStmt { - NodeTag type; - bool verbose; /* print status info */ - bool analyze; /* analyze data */ - char *vacrel; /* table to vacuum */ - List *va_spec; /* columns to analyse */ -} VacuumStmt; +typedef struct VacuumStmt +{ + NodeTag type; + bool verbose; /* print status info */ + bool analyze; /* analyze data */ + char *vacrel; /* table to vacuum */ + List *va_spec; /* columns to analyse */ +} VacuumStmt; /* ---------------------- - * Explain Statement + * Explain Statement * ---------------------- */ -typedef struct ExplainStmt { - NodeTag type; - Query *query; /* the query */ - bool verbose; /* print plan info */ -} ExplainStmt; +typedef struct ExplainStmt +{ + NodeTag type; + Query *query; /* the query */ + bool verbose; /* print plan info */ +} ExplainStmt; /* ---------------------- * Set Statement * ---------------------- */ -typedef struct VariableSetStmt { - NodeTag type; - char *name; - char *value; -} VariableSetStmt; +typedef struct VariableSetStmt +{ + NodeTag type; + char *name; + char *value; +} VariableSetStmt; /* ---------------------- * Show Statement * ---------------------- */ -typedef struct VariableShowStmt { - NodeTag type; - char *name; -} VariableShowStmt; +typedef struct VariableShowStmt +{ + NodeTag type; + char *name; +} VariableShowStmt; /* ---------------------- * Reset Statement * ---------------------- */ -typedef struct VariableResetStmt { - NodeTag type; - char *name; -} VariableResetStmt; +typedef struct VariableResetStmt +{ + NodeTag type; + char *name; +} VariableResetStmt; /***************************************************************************** - * Optimizable Statements + * Optimizable Statements *****************************************************************************/ /* ---------------------- - * Insert Statement + * Insert Statement * ---------------------- */ -typedef struct AppendStmt { - NodeTag type; - char *relname; /* relation to insert into */ - List *cols; /* names of the columns */ - List *targetList; /* the target list (of ResTarget) */ - List *fromClause; /* the from clause */ - Node *whereClause; /* qualifications */ -} AppendStmt; +typedef struct AppendStmt +{ + NodeTag type; + char *relname; /* relation to insert into */ + List *cols; /* names of the columns */ + List *targetList; /* the target list (of ResTarget) */ + List *fromClause; /* the from clause */ + Node *whereClause;/* qualifications */ +} AppendStmt; /* ---------------------- - * Delete Statement + * Delete Statement * ---------------------- */ -typedef struct DeleteStmt { - NodeTag type; - char *relname; /* relation to delete from */ - Node *whereClause; /* qualifications */ -} DeleteStmt; +typedef struct DeleteStmt +{ + NodeTag type; + char *relname; /* relation to delete from */ + Node *whereClause;/* qualifications */ +} DeleteStmt; /* ---------------------- - * Update Statement + * Update Statement * ---------------------- */ -typedef struct ReplaceStmt { - NodeTag type; - char *relname; /* relation to update */ - List *targetList; /* the target list (of ResTarget) */ - Node *whereClause; /* qualifications */ - List *fromClause; /* the from clause */ -} ReplaceStmt; +typedef struct ReplaceStmt +{ + NodeTag type; + char *relname; /* relation to update */ + List *targetList; /* the target list (of ResTarget) */ + Node *whereClause;/* qualifications */ + List *fromClause; /* the from clause */ +} ReplaceStmt; /* ---------------------- - * Create Cursor Statement + * Create Cursor Statement * ---------------------- */ -typedef struct CursorStmt { - NodeTag type; - char *portalname; /* the portal (cursor) to create */ - bool binary; /* a binary (internal) portal? */ - char *unique; /* NULL, "*", or unique attribute name */ - List *targetList; /* the target list (of ResTarget) */ - List *fromClause; /* the from clause */ - Node *whereClause; /* qualifications */ - List *groupClause; /* group by clause */ - List *sortClause; /* sort clause (a list of SortGroupBy's) */ -} CursorStmt; +typedef struct CursorStmt +{ + NodeTag type; + char *portalname; /* the portal (cursor) to create */ + bool binary; /* a binary (internal) portal? */ + char *unique; /* NULL, "*", or unique attribute name */ + List *targetList; /* the target list (of ResTarget) */ + List *fromClause; /* the from clause */ + Node *whereClause;/* qualifications */ + List *groupClause;/* group by clause */ + List *sortClause; /* sort clause (a list of SortGroupBy's) */ +} CursorStmt; /* ---------------------- - * Select Statement + * Select Statement * ---------------------- */ -typedef struct RetrieveStmt { - NodeTag type; - char *unique; /* NULL, '*', or unique attribute name */ - char *into; /* name of table (for select into table) */ - List *targetList; /* the target list (of ResTarget) */ - List *fromClause; /* the from clause */ - Node *whereClause; /* qualifications */ - List *groupClause; /* group by clause */ - Node *havingClause; /* having conditional-expression */ - List *selectClause; /* subselect parameters */ - List *sortClause; /* sort clause (a list of SortGroupBy's) */ -} RetrieveStmt; +typedef struct RetrieveStmt +{ + NodeTag type; + char *unique; /* NULL, '*', or unique attribute name */ + char *into; /* name of table (for select into table) */ + List *targetList; /* the target list (of ResTarget) */ + List *fromClause; /* the from clause */ + Node *whereClause;/* qualifications */ + List *groupClause;/* group by clause */ + Node *havingClause; /* having conditional-expression */ + List *selectClause; /* subselect parameters */ + List *sortClause; /* sort clause (a list of SortGroupBy's) */ +} RetrieveStmt; /**************************************************************************** - * Supporting data structures for Parse Trees + * Supporting data structures for Parse Trees ****************************************************************************/ /* * SubSelect - specifies subselect parameters */ -typedef struct SubSelect { - NodeTag type; - char *unique; /* NULL, '*', or unique attribute name */ - List *targetList; /* the target list (of ResTarget) */ - List *fromClause; /* the from clause */ - Node *whereClause; /* qualifications */ - List *groupClause; /* group by clause */ - Node *havingClause; /* having conditional-expression */ -} SubSelect; +typedef struct SubSelect +{ + NodeTag type; + char *unique; /* NULL, '*', or unique attribute name */ + List *targetList; /* the target list (of ResTarget) */ + List *fromClause; /* the from clause */ + Node *whereClause;/* qualifications */ + List *groupClause;/* group by clause */ + Node *havingClause; /* having conditional-expression */ +} SubSelect; /* * TypeName - specifies a type in definitions */ -typedef struct TypeName { - NodeTag type; - char *name; /* name of the type */ - bool timezone; /* timezone specified? */ - bool setof; /* is a set? */ - List *arrayBounds; /* array bounds */ - int typlen; /* length for char() and varchar() */ -} TypeName; +typedef struct TypeName +{ + NodeTag type; + char *name; /* name of the type */ + bool timezone; /* timezone specified? */ + bool setof; /* is a set? */ + List *arrayBounds;/* array bounds */ + int typlen; /* length for char() and varchar() */ +} TypeName; /* * ParamNo - specifies a parameter reference */ -typedef struct ParamNo { - NodeTag type; - int number; /* the number of the parameter */ - TypeName *typename; /* the typecast */ -} ParamNo; +typedef struct ParamNo +{ + NodeTag type; + int number; /* the number of the parameter */ + TypeName *typename; /* the typecast */ +} ParamNo; /* * A_Expr - binary expressions */ -typedef struct A_Expr { - NodeTag type; - int oper; /* type of operation - {OP,OR,AND,NOT,ISNULL,NOTNULL} */ - char *opname; /* name of operator/function */ - Node *lexpr; /* left argument */ - Node *rexpr; /* right argument */ -} A_Expr; +typedef struct A_Expr +{ + NodeTag type; + int oper; /* type of operation + * {OP,OR,AND,NOT,ISNULL,NOTNULL} */ + char *opname; /* name of operator/function */ + Node *lexpr; /* left argument */ + Node *rexpr; /* right argument */ +} A_Expr; /* * Attr - - * specifies an Attribute (ie. a Column); could have nested dots or - * array references. + * specifies an Attribute (ie. a Column); could have nested dots or + * array references. * */ -typedef struct Attr { - NodeTag type; - char *relname; /* name of relation (can be "*") */ - ParamNo *paramNo; /* or a parameter */ - List *attrs; /* attributes (possibly nested); - list of Values (strings) */ - List *indirection; /* array refs (list of A_Indices') */ -} Attr; +typedef struct Attr +{ + NodeTag type; + char *relname; /* name of relation (can be "*") */ + ParamNo *paramNo; /* or a parameter */ + List *attrs; /* attributes (possibly nested); list of + * Values (strings) */ + List *indirection;/* array refs (list of A_Indices') */ +} Attr; /* * A_Const - a constant expression */ -typedef struct A_Const { - NodeTag type; - Value val; /* the value (with the tag) */ - TypeName *typename; /* typecast */ -} A_Const; +typedef struct A_Const +{ + NodeTag type; + Value val; /* the value (with the tag) */ + TypeName *typename; /* typecast */ +} A_Const; /* * ColumnDef - column definition (used in various creates) */ -typedef struct ColumnDef { - NodeTag type; - char *colname; /* name of column */ - TypeName *typename; /* type of column */ - bool is_not_null; /* flag to NOT NULL constraint */ - char *defval; /* default value of column */ -} ColumnDef; +typedef struct ColumnDef +{ + NodeTag type; + char *colname; /* name of column */ + TypeName *typename; /* type of column */ + bool is_not_null;/* flag to NOT NULL constraint */ + char *defval; /* default value of column */ +} ColumnDef; /* - * Ident - - * an identifier (could be an attribute or a relation name). Depending - * on the context at transformStmt time, the identifier is treated as - * either a relation name (in which case, isRel will be set) or an - * attribute (in which case, it will be transformed into an Attr). - */ -typedef struct Ident { - NodeTag type; - char *name; /* its name */ - List *indirection; /* array references */ - bool isRel; /* is a relation - filled in by - transformExpr() */ -} Ident; + * Ident - + * an identifier (could be an attribute or a relation name). Depending + * on the context at transformStmt time, the identifier is treated as + * either a relation name (in which case, isRel will be set) or an + * attribute (in which case, it will be transformed into an Attr). + */ +typedef struct Ident +{ + NodeTag type; + char *name; /* its name */ + List *indirection;/* array references */ + bool isRel; /* is a relation - filled in by + * transformExpr() */ +} Ident; /* * FuncCall - a function/aggregate invocation */ -typedef struct FuncCall { - NodeTag type; - char *funcname; /* name of function */ - List *args; /* the arguments (list of exprs) */ -} FuncCall; +typedef struct FuncCall +{ + NodeTag type; + char *funcname; /* name of function */ + List *args; /* the arguments (list of exprs) */ +} FuncCall; /* * A_Indices - array reference or bounds ([lidx:uidx] or [uidx]) */ -typedef struct A_Indices { - NodeTag type; - Node *lidx; /* could be NULL */ - Node *uidx; -} A_Indices; +typedef struct A_Indices +{ + NodeTag type; + Node *lidx; /* could be NULL */ + Node *uidx; +} A_Indices; /* - * ResTarget - - * result target (used in target list of pre-transformed Parse trees) - */ -typedef struct ResTarget { - NodeTag type; - char *name; /* name of the result column */ - List *indirection; /* array references */ - Node *val; /* the value of the result - (A_Expr or Attr) (or A_Const) */ -} ResTarget; + * ResTarget - + * result target (used in target list of pre-transformed Parse trees) + */ +typedef struct ResTarget +{ + NodeTag type; + char *name; /* name of the result column */ + List *indirection;/* array references */ + Node *val; /* the value of the result (A_Expr or + * Attr) (or A_Const) */ +} ResTarget; /* * ParamString - used in with clauses */ -typedef struct ParamString { - NodeTag type; - char *name; - char *val; -} ParamString; +typedef struct ParamString +{ + NodeTag type; + char *name; + char *val; +} ParamString; /* * TimeRange - specifies a time range */ -typedef struct TimeRange { - NodeTag type; - char *startDate; - char *endDate; /* snapshot if NULL */ -} TimeRange; +typedef struct TimeRange +{ + NodeTag type; + char *startDate; + char *endDate; /* snapshot if NULL */ +} TimeRange; /* * RelExpr - relation expressions */ -typedef struct RelExpr { - NodeTag type; - char *relname; /* the relation name */ - bool inh; /* inheritance query */ - TimeRange *timeRange; /* the time range */ -} RelExpr; +typedef struct RelExpr +{ + NodeTag type; + char *relname; /* the relation name */ + bool inh; /* inheritance query */ + TimeRange *timeRange; /* the time range */ +} RelExpr; /* * SortGroupBy - for order by clause */ -typedef struct SortGroupBy { - NodeTag type; - int resno; /* target number */ - char *range; - char *name; /* name of column to sort on */ - char *useOp; /* operator to use */ -} SortGroupBy; +typedef struct SortGroupBy +{ + NodeTag type; + int resno; /* target number */ + char *range; + char *name; /* name of column to sort on */ + char *useOp; /* operator to use */ +} SortGroupBy; /* * RangeVar - range variable, used in from clauses */ -typedef struct RangeVar { - NodeTag type; - RelExpr *relExpr; /* the relation expression */ - char *name; /* the name to be referenced - (optional) */ -} RangeVar; +typedef struct RangeVar +{ + NodeTag type; + RelExpr *relExpr; /* the relation expression */ + char *name; /* the name to be referenced (optional) */ +} RangeVar; /* * IndexElem - index parameters (used in create index) */ -typedef struct IndexElem { - NodeTag type; - char *name; /* name of index */ - List *args; /* if not NULL, function index */ - char *class; - TypeName *tname; /* type of index's keys (optional) */ -} IndexElem; +typedef struct IndexElem +{ + NodeTag type; + char *name; /* name of index */ + List *args; /* if not NULL, function index */ + char *class; + TypeName *tname; /* type of index's keys (optional) */ +} IndexElem; /* * DefElem - - * a definition (used in definition lists in the form of defname = arg) + * a definition (used in definition lists in the form of defname = arg) */ -typedef struct DefElem { - NodeTag type; - char *defname; - Node *arg; /* a (Value *) or a (TypeName *) */ -} DefElem; +typedef struct DefElem +{ + NodeTag type; + char *defname; + Node *arg; /* a (Value *) or a (TypeName *) */ +} DefElem; /**************************************************************************** - * Nodes for a Query tree + * Nodes for a Query tree ****************************************************************************/ /* * TargetEntry - - * a target entry (used in the transformed target list) + * a target entry (used in the transformed target list) * * one of resdom or fjoin is not NULL. a target list is - * ((<resdom | fjoin> expr) (<resdom | fjoin> expr) ...) + * ((<resdom | fjoin> expr) (<resdom | fjoin> expr) ...) */ -typedef struct TargetEntry { - NodeTag type; - Resdom *resdom; /* fjoin overload this to be a list??*/ - Fjoin *fjoin; - Node *expr; /* can be a list too */ -} TargetEntry; +typedef struct TargetEntry +{ + NodeTag type; + Resdom *resdom; /* fjoin overload this to be a list?? */ + Fjoin *fjoin; + Node *expr; /* can be a list too */ +} TargetEntry; /* * RangeTblEntry - - * used in range tables. Some of the following are only used in one of - * the parsing, optimizing, execution stages. + * used in range tables. Some of the following are only used in one of + * the parsing, optimizing, execution stages. * - * inFromCl marks those range variables that are listed in the from clause. - * In SQL, the targetlist can only refer to range variables listed in the - * from clause but POSTQUEL allows you to refer to tables not specified, in - * which case a range table entry will be generated. We use POSTQUEL - * semantics which is more powerful. However, we need SQL semantics in - * some cases (eg. when expanding a '*') - */ -typedef struct RangeTblEntry { - NodeTag type; - char *relname; /* real name of the relation */ - TimeRange *timeRange; /* time range */ - char *refname; /* the reference name (specified in - the from clause) */ - Oid relid; - bool inh; /* inheritance? */ - bool archive; /* filled in by plan_archive */ - bool inFromCl; /* comes from From Clause */ - TimeQual timeQual; /* filled in by pg_plan */ -} RangeTblEntry; + * inFromCl marks those range variables that are listed in the from clause. + * In SQL, the targetlist can only refer to range variables listed in the + * from clause but POSTQUEL allows you to refer to tables not specified, in + * which case a range table entry will be generated. We use POSTQUEL + * semantics which is more powerful. However, we need SQL semantics in + * some cases (eg. when expanding a '*') + */ +typedef struct RangeTblEntry +{ + NodeTag type; + char *relname; /* real name of the relation */ + TimeRange *timeRange; /* time range */ + char *refname; /* the reference name (specified in the + * from clause) */ + Oid relid; + bool inh; /* inheritance? */ + bool archive; /* filled in by plan_archive */ + bool inFromCl; /* comes from From Clause */ + TimeQual timeQual; /* filled in by pg_plan */ +} RangeTblEntry; /* * SortClause - - * used in the sort clause for retrieves and cursors + * used in the sort clause for retrieves and cursors */ -typedef struct SortClause { - NodeTag type; - Resdom *resdom; /* attributes in tlist to be sorted */ - Oid opoid; /* sort operators */ -} SortClause; +typedef struct SortClause +{ + NodeTag type; + Resdom *resdom; /* attributes in tlist to be sorted */ + Oid opoid; /* sort operators */ +} SortClause; /* * GroupClause - - * used in the GROUP BY clause + * used in the GROUP BY clause */ -typedef struct GroupClause { - NodeTag type; - TargetEntry *entry; /* attributes to group on */ - Oid grpOpoid; /* the sort operator to use */ -} GroupClause; +typedef struct GroupClause +{ + NodeTag type; + TargetEntry *entry; /* attributes to group on */ + Oid grpOpoid; /* the sort operator to use */ +} GroupClause; -#endif /* PARSENODES_H */ +#endif /* PARSENODES_H */ |