stat_utils.c File Reference

#include "postgres.h"
#include "access/relation.h"
#include "catalog/pg_database.h"
#include "miscadmin.h"
#include "statistics/stat_utils.h"
#include "utils/acl.h"
#include "utils/array.h"
#include "utils/builtins.h"
#include "utils/rel.h"

Include dependency graph for stat_utils.c:

Go to the source code of this file.

Functions
void	stats_check_required_arg (FunctionCallInfo fcinfo, struct StatsArgInfo *arginfo, int argnum)
bool	stats_check_arg_array (FunctionCallInfo fcinfo, struct StatsArgInfo *arginfo, int argnum, int elevel)
bool	stats_check_arg_pair (FunctionCallInfo fcinfo, struct StatsArgInfo *arginfo, int argnum1, int argnum2, int elevel)
void	stats_lock_check_privileges (Oid reloid)

Function Documentation

stats_check_arg_array()

bool stats_check_arg_array	(	FunctionCallInfo	fcinfo,
		struct StatsArgInfo *	arginfo,
		int	argnum,
		int	elevel
	)

Definition at line 51 of file stat_utils.c.

{
    ArrayType  *arr;
 
    if (PG_ARGISNULL(argnum))
        return true;
 
    arr = DatumGetArrayTypeP(PG_GETARG_DATUM(argnum));
 
    if (ARR_NDIM(arr) != 1)
    {
        ereport(elevel,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("\"%s\" cannot be a multidimensional array",
                        arginfo[argnum].argname)));
        return false;
    }
 
    if (array_contains_nulls(arr))
    {
        ereport(elevel,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("\"%s\" array cannot contain NULL values",
                        arginfo[argnum].argname)));
        return false;
    }
 
    return true;
}

References ARR_NDIM, array_contains_nulls(), DatumGetArrayTypeP, ereport, errcode(), errmsg(), PG_ARGISNULL, and PG_GETARG_DATUM.

Referenced by attribute_statistics_update().

stats_check_arg_pair()

bool stats_check_arg_pair	(	FunctionCallInfo	fcinfo,
		struct StatsArgInfo *	arginfo,
		int	argnum1,
		int	argnum2,
		int	elevel
	)

Definition at line 92 of file stat_utils.c.

{
    if (PG_ARGISNULL(argnum1) && PG_ARGISNULL(argnum2))
        return true;
 
    if (PG_ARGISNULL(argnum1) || PG_ARGISNULL(argnum2))
    {
        int         nullarg = PG_ARGISNULL(argnum1) ? argnum1 : argnum2;
        int         otherarg = PG_ARGISNULL(argnum1) ? argnum2 : argnum1;
 
        ereport(elevel,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("\"%s\" must be specified when \"%s\" is specified",
                        arginfo[nullarg].argname,
                        arginfo[otherarg].argname)));
 
        return false;
    }
 
    return true;
}

References ereport, errcode(), errmsg(), and PG_ARGISNULL.

Referenced by attribute_statistics_update().

stats_check_required_arg()

void stats_check_required_arg	(	FunctionCallInfo	fcinfo,
		struct StatsArgInfo *	arginfo,
		int	argnum
	)

Definition at line 32 of file stat_utils.c.

{
    if (PG_ARGISNULL(argnum))
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("\"%s\" cannot be NULL",
                        arginfo[argnum].argname)));
}

References ereport, errcode(), errmsg(), ERROR, and PG_ARGISNULL.

Referenced by attribute_statistics_update(), pg_clear_attribute_stats(), and relation_statistics_update().

stats_lock_check_privileges()

void stats_lock_check_privileges

(

Oid

reloid

)

Definition at line 126 of file stat_utils.c.

{
    Relation    rel = relation_open(reloid, ShareUpdateExclusiveLock);
    const char  relkind = rel->rd_rel->relkind;
 
    /* All of the types that can be used with ANALYZE, plus indexes */
    switch (relkind)
    {
        case RELKIND_RELATION:
        case RELKIND_INDEX:
        case RELKIND_MATVIEW:
        case RELKIND_FOREIGN_TABLE:
        case RELKIND_PARTITIONED_TABLE:
        case RELKIND_PARTITIONED_INDEX:
            break;
        default:
            ereport(ERROR,
                    (errcode(ERRCODE_WRONG_OBJECT_TYPE),
                     errmsg("cannot modify statistics for relation \"%s\"",
                            RelationGetRelationName(rel)),
                     errdetail_relkind_not_supported(rel->rd_rel->relkind)));
    }
 
    if (rel->rd_rel->relisshared)
        ereport(ERROR,
                (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
                 errmsg("cannot modify statistics for shared relation")));
 
    if (!object_ownercheck(DatabaseRelationId, MyDatabaseId, GetUserId()))
    {
        AclResult   aclresult = pg_class_aclcheck(RelationGetRelid(rel),
                                                  GetUserId(),
                                                  ACL_MAINTAIN);
 
        if (aclresult != ACLCHECK_OK)
            aclcheck_error(aclresult,
                           get_relkind_objtype(rel->rd_rel->relkind),
                           NameStr(rel->rd_rel->relname));
    }
 
    relation_close(rel, NoLock);
}

References ACL_MAINTAIN, aclcheck_error(), ACLCHECK_OK, ereport, errcode(), errdetail_relkind_not_supported(), errmsg(), ERROR, get_relkind_objtype(), GetUserId(), MyDatabaseId, NameStr, NoLock, object_ownercheck(), pg_class_aclcheck(), RelationData::rd_rel, relation_close(), relation_open(), RelationGetRelationName, RelationGetRelid, and ShareUpdateExclusiveLock.

Referenced by attribute_statistics_update(), pg_clear_attribute_stats(), and relation_statistics_update().