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/* -------------------------------------------------------------------------
*
* rowsecurity.h
*
* prototypes for rewrite/rowsecurity.c and the structures for managing
* the row security policies for relations in relcache.
*
* Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* -------------------------------------------------------------------------
*/
#ifndef ROWSECURITY_H
#define ROWSECURITY_H
#include "nodes/parsenodes.h"
#include "utils/array.h"
#include "utils/relcache.h"
typedef struct RowSecurityPolicy
{
char *policy_name; /* Name of the policy */
char polcmd; /* Type of command policy is for */
ArrayType *roles; /* Array of roles policy is for */
bool permissive; /* restrictive or permissive policy */
Expr *qual; /* Expression to filter rows */
Expr *with_check_qual; /* Expression to limit rows allowed */
bool hassublinks; /* If either expression has sublinks */
} RowSecurityPolicy;
typedef struct RowSecurityDesc
{
MemoryContext rscxt; /* row security memory context */
List *policies; /* list of row security policies */
} RowSecurityDesc;
typedef List *(*row_security_policy_hook_type) (CmdType cmdtype,
Relation relation);
extern PGDLLIMPORT row_security_policy_hook_type row_security_policy_hook_permissive;
extern PGDLLIMPORT row_security_policy_hook_type row_security_policy_hook_restrictive;
extern void get_row_security_policies(Query *root,
RangeTblEntry *rte, int rt_index,
List **securityQuals, List **withCheckOptions,
bool *hasRowSecurity, bool *hasSubLinks);
#endif /* ROWSECURITY_H */
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