parsenodes.h

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 * ----------------------
 */
typedef struct AlterOwnerStmt
{
	NodeTag		type;
	ObjectType objectType;		/* OBJECT_TABLE, OBJECT_TYPE, etc */
	RangeVar   *relation;		/* in case it's a table */
	List	   *object;			/* in case it's some other object */
	List	   *objarg;			/* argument types, if applicable */
	char	   *addname;		/* additional name if needed */
	char	   *newowner;		/* the new owner */
} AlterOwnerStmt;


/* ----------------------
 *		Create Rule Statement
 * ----------------------
 */
typedef struct RuleStmt
{
	NodeTag		type;
	RangeVar   *relation;		/* relation the rule is for */
	char	   *rulename;		/* name of the rule */
	Node	   *whereClause;	/* qualifications */
	CmdType		event;			/* SELECT, INSERT, etc */
	bool		instead;		/* is a 'do instead'? */
	List	   *actions;		/* the action statements */
	bool		replace;		/* OR REPLACE */
} RuleStmt;

/* ----------------------
 *		Notify Statement
 * ----------------------
 */
typedef struct NotifyStmt
{
	NodeTag		type;
	RangeVar   *relation;		/* qualified name to notify */
} NotifyStmt;

/* ----------------------
 *		Listen Statement
 * ----------------------
 */
typedef struct ListenStmt
{
	NodeTag		type;
	RangeVar   *relation;		/* qualified name to listen on */
} ListenStmt;

/* ----------------------
 *		Unlisten Statement
 * ----------------------
 */
typedef struct UnlistenStmt
{
	NodeTag		type;
	RangeVar   *relation;		/* qualified name to unlisten on, or '*' */
} UnlistenStmt;

/* ----------------------
 *		{Begin|Commit|Rollback} Transaction Statement
 * ----------------------
 */
typedef enum TransactionStmtKind
{
	TRANS_STMT_BEGIN,
	TRANS_STMT_START,			/* semantically identical to BEGIN */
	TRANS_STMT_COMMIT,
	TRANS_STMT_ROLLBACK,
	TRANS_STMT_SAVEPOINT,
	TRANS_STMT_RELEASE,
	TRANS_STMT_ROLLBACK_TO,
	TRANS_STMT_PREPARE,
	TRANS_STMT_COMMIT_PREPARED,
	TRANS_STMT_ROLLBACK_PREPARED
} TransactionStmtKind;

typedef struct TransactionStmt
{
	NodeTag		type;
	TransactionStmtKind kind;	/* see above */
	List	   *options;		/* for BEGIN/START and savepoint commands */
	char	   *gid;			/* for two-phase-commit related commands */
} TransactionStmt;

/* ----------------------
 *		Create Type Statement, composite types
 * ----------------------
 */
typedef struct CompositeTypeStmt
{
	NodeTag		type;
	RangeVar   *typevar;		/* the composite type to be created */
	List	   *coldeflist;		/* list of ColumnDef nodes */
} CompositeTypeStmt;


/* ----------------------
 *		Create View Statement
 * ----------------------
 */
typedef struct ViewStmt
{
	NodeTag		type;
	RangeVar   *view;			/* the view to be created */
	List	   *aliases;		/* target column names */
	Query	   *query;			/* the SQL statement */
	bool		replace;		/* replace an existing view? */
} ViewStmt;

/* ----------------------
 *		Load Statement
 * ----------------------
 */
typedef struct LoadStmt
{
	NodeTag		type;
	char	   *filename;		/* file to load */
} LoadStmt;

/* ----------------------
 *		Createdb Statement
 * ----------------------
 */
typedef struct CreatedbStmt
{
	NodeTag		type;
	char	   *dbname;			/* name of database to create */
	List	   *options;		/* List of DefElem nodes */
} CreatedbStmt;

/* ----------------------
 *	Alter Database
 * ----------------------
 */
typedef struct AlterDatabaseStmt
{
	NodeTag		type;
	char	   *dbname;			/* name of database to alter */
	List	   *options;		/* List of DefElem nodes */
} AlterDatabaseStmt;

typedef struct AlterDatabaseSetStmt
{
	NodeTag		type;
	char	   *dbname;
	char	   *variable;
	List	   *value;
} AlterDatabaseSetStmt;

/* ----------------------
 *		Dropdb Statement
 * ----------------------
 */
typedef struct DropdbStmt
{
	NodeTag		type;
	char	   *dbname;			/* database to drop */
	bool		missing_ok;		/* skip error if db is missing? */
} DropdbStmt;

/* ----------------------
 *		Cluster Statement (support pbrown's cluster index implementation)
 * ----------------------
 */
typedef struct ClusterStmt
{
	NodeTag		type;
	RangeVar   *relation;		/* relation being indexed, or NULL if all */
	char	   *indexname;		/* original index defined */
} ClusterStmt;

/* ----------------------
 *		Vacuum and Analyze Statements
 *
 * Even though these are nominally two statements, it's convenient to use
 * just one node type for both.
 * ----------------------
 */
typedef struct VacuumStmt
{
	NodeTag		type;
	bool		vacuum;			/* do VACUUM step */
	bool		full;			/* do FULL (non-concurrent) vacuum */
	bool		analyze;		/* do ANALYZE step */
	bool		verbose;		/* print progress info */
	int			freeze_min_age;	/* min freeze age, or -1 to use default */
	RangeVar   *relation;		/* single table to process, or NULL */
	List	   *va_cols;		/* list of column names, or NIL for all */
} VacuumStmt;

/* ----------------------
 *		Explain Statement
 * ----------------------
 */
typedef struct ExplainStmt
{
	NodeTag		type;
	Query	   *query;			/* the query */
	bool		verbose;		/* print plan info */
	bool		analyze;		/* get statistics by executing plan */
} ExplainStmt;

/* ----------------------
 * Checkpoint Statement
 * ----------------------
 */
typedef struct CheckPointStmt
{
	NodeTag		type;
} CheckPointStmt;

/* ----------------------
 * Set Statement
 * ----------------------
 */

typedef struct VariableSetStmt
{
	NodeTag		type;
	char	   *name;
	List	   *args;
	bool		is_local;		/* SET LOCAL */
} VariableSetStmt;

/* ----------------------
 * Show Statement
 * ----------------------
 */

typedef struct VariableShowStmt
{
	NodeTag		type;
	char	   *name;
} VariableShowStmt;

/* ----------------------
 * Reset Statement
 * ----------------------
 */

typedef struct VariableResetStmt
{
	NodeTag		type;
	char	   *name;
} VariableResetStmt;

/* ----------------------
 *		LOCK Statement
 * ----------------------
 */
typedef struct LockStmt
{
	NodeTag		type;
	List	   *relations;		/* relations to lock */
	int			mode;			/* lock mode */
	bool		nowait;			/* no wait mode */
} LockStmt;

/* ----------------------
 *		SET CONSTRAINTS Statement
 * ----------------------
 */
typedef struct ConstraintsSetStmt
{
	NodeTag		type;
	List	   *constraints;	/* List of names as RangeVars */
	bool		deferred;
} ConstraintsSetStmt;

/* ----------------------
 *		REINDEX Statement
 * ----------------------
 */
typedef struct ReindexStmt
{
	NodeTag		type;
	ObjectType	kind;			/* OBJECT_INDEX, OBJECT_TABLE, OBJECT_DATABASE */
	RangeVar   *relation;		/* Table or index to reindex */
	const char *name;			/* name of database to reindex */
	bool		do_system;		/* include system tables in database case */
	bool		do_user;		/* include user tables in database case */
} ReindexStmt;

/* ----------------------
 *		CREATE CONVERSION Statement
 * ----------------------
 */
typedef struct CreateConversionStmt
{
	NodeTag		type;
	List	   *conversion_name;	/* Name of the conversion */
	char	   *for_encoding_name;		/* source encoding name */
	char	   *to_encoding_name;		/* destination encoding name */
	List	   *func_name;		/* qualified conversion function name */
	bool		def;			/* is this a default conversion? */
} CreateConversionStmt;

/* ----------------------
 *	CREATE CAST Statement
 * ----------------------
 */
typedef struct CreateCastStmt
{
	NodeTag		type;
	TypeName   *sourcetype;
	TypeName   *targettype;
	FuncWithArgs *func;
	CoercionContext context;
} CreateCastStmt;

/* ----------------------
 *	DROP CAST Statement
 * ----------------------
 */
typedef struct DropCastStmt
{
	NodeTag		type;
	TypeName   *sourcetype;
	TypeName   *targettype;
	DropBehavior behavior;
	bool		missing_ok;		/* skip error if a missing? */
} DropCastStmt;


/* ----------------------
 *		PREPARE Statement
 * ----------------------
 */
typedef struct PrepareStmt
{
	NodeTag		type;
	char	   *name;			/* Name of plan, arbitrary */
	List	   *argtypes;		/* Types of parameters (TypeNames) */
	List	   *argtype_oids;	/* Types of parameters (OIDs) */
	Query	   *query;			/* The query itself */
} PrepareStmt;


/* ----------------------
 *		EXECUTE Statement
 * ----------------------
 */

typedef struct ExecuteStmt
{
	NodeTag		type;
	char	   *name;			/* The name of the plan to execute */
	RangeVar   *into;			/* Optional table to store results in */
	List	   *intoOptions;	/* Options from WITH clause */
	OnCommitAction into_on_commit;		/* What do we do at COMMIT? */
	char	   *into_tbl_space; /* Tablespace to use, or NULL */
	List	   *params;			/* Values to assign to parameters */
} ExecuteStmt;


/* ----------------------
 *		DEALLOCATE Statement
 * ----------------------
 */
typedef struct DeallocateStmt
{
	NodeTag		type;
	char	   *name;			/* The name of the plan to remove */
} DeallocateStmt;

/*
 *		DROP OWNED statement
 */
typedef struct DropOwnedStmt
{
	NodeTag		type;
	List	   *roles;
	DropBehavior behavior;
} DropOwnedStmt;

/*
 *		REASSIGN OWNED statement
 */
typedef struct ReassignOwnedStmt
{
	NodeTag		type;
	List	   *roles;
	char	   *newrole;
} ReassignOwnedStmt;

#endif   /* PARSENODES_H */