mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-07-14 19:19:16 +02:00
4bd1994650
By project convention, these names should include "P" when dealing with a pointer type; that is, if the result of a GETARG macro is of type FOO *, it should be called PG_GETARG_FOO_P not just PG_GETARG_FOO. Some newer types such as JSONB and ranges had not followed the convention, and a number of contrib modules hadn't gotten that memo either. Rename the offending macros to improve consistency. In passing, fix a few places that thought PG_DETOAST_DATUM() returns a Datum; it does not, it returns "struct varlena *". Applying DatumGetPointer to that happens not to cause any bad effects today, but it's formally wrong. Also, adjust an ltree macro that was designed without any thought for what pgindent would do with it. This is all cosmetic and shouldn't have any impact on generated code. Mark Dilger, some further tweaks by me Discussion: https://postgr.es/m/EA5676F4-766F-4F38-8348-ECC7DB427C6A@gmail.com
326 lines
6.9 KiB
C
326 lines
6.9 KiB
C
/*
|
|
* contrib/ltree/_ltree_op.c
|
|
*
|
|
*
|
|
* op function for ltree[]
|
|
* Teodor Sigaev <teodor@stack.net>
|
|
*/
|
|
#include "postgres.h"
|
|
|
|
#include <ctype.h>
|
|
|
|
#include "ltree.h"
|
|
|
|
PG_FUNCTION_INFO_V1(_ltree_isparent);
|
|
PG_FUNCTION_INFO_V1(_ltree_r_isparent);
|
|
PG_FUNCTION_INFO_V1(_ltree_risparent);
|
|
PG_FUNCTION_INFO_V1(_ltree_r_risparent);
|
|
PG_FUNCTION_INFO_V1(_ltq_regex);
|
|
PG_FUNCTION_INFO_V1(_ltq_rregex);
|
|
PG_FUNCTION_INFO_V1(_lt_q_regex);
|
|
PG_FUNCTION_INFO_V1(_lt_q_rregex);
|
|
PG_FUNCTION_INFO_V1(_ltxtq_exec);
|
|
PG_FUNCTION_INFO_V1(_ltxtq_rexec);
|
|
|
|
PG_FUNCTION_INFO_V1(_ltree_extract_isparent);
|
|
PG_FUNCTION_INFO_V1(_ltree_extract_risparent);
|
|
PG_FUNCTION_INFO_V1(_ltq_extract_regex);
|
|
PG_FUNCTION_INFO_V1(_ltxtq_extract_exec);
|
|
|
|
PG_FUNCTION_INFO_V1(_lca);
|
|
|
|
typedef Datum (*PGCALL2) (PG_FUNCTION_ARGS);
|
|
|
|
#define NEXTVAL(x) ( (ltree*)( (char*)(x) + INTALIGN( VARSIZE(x) ) ) )
|
|
|
|
static bool
|
|
array_iterator(ArrayType *la, PGCALL2 callback, void *param, ltree **found)
|
|
{
|
|
int num = ArrayGetNItems(ARR_NDIM(la), ARR_DIMS(la));
|
|
ltree *item = (ltree *) ARR_DATA_PTR(la);
|
|
|
|
if (ARR_NDIM(la) > 1)
|
|
ereport(ERROR,
|
|
(errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
|
|
errmsg("array must be one-dimensional")));
|
|
if (array_contains_nulls(la))
|
|
ereport(ERROR,
|
|
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
|
|
errmsg("array must not contain nulls")));
|
|
|
|
if (found)
|
|
*found = NULL;
|
|
while (num > 0)
|
|
{
|
|
if (DatumGetBool(DirectFunctionCall2(callback,
|
|
PointerGetDatum(item), PointerGetDatum(param))))
|
|
{
|
|
|
|
if (found)
|
|
*found = item;
|
|
return true;
|
|
}
|
|
num--;
|
|
item = NEXTVAL(item);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
Datum
|
|
_ltree_isparent(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
ltree *query = PG_GETARG_LTREE_P(1);
|
|
bool res = array_iterator(la, ltree_isparent, (void *) query, NULL);
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_BOOL(res);
|
|
}
|
|
|
|
Datum
|
|
_ltree_r_isparent(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_DATUM(DirectFunctionCall2(_ltree_isparent,
|
|
PG_GETARG_DATUM(1),
|
|
PG_GETARG_DATUM(0)
|
|
));
|
|
}
|
|
|
|
Datum
|
|
_ltree_risparent(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
ltree *query = PG_GETARG_LTREE_P(1);
|
|
bool res = array_iterator(la, ltree_risparent, (void *) query, NULL);
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_BOOL(res);
|
|
}
|
|
|
|
Datum
|
|
_ltree_r_risparent(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_DATUM(DirectFunctionCall2(_ltree_risparent,
|
|
PG_GETARG_DATUM(1),
|
|
PG_GETARG_DATUM(0)
|
|
));
|
|
}
|
|
|
|
Datum
|
|
_ltq_regex(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
lquery *query = PG_GETARG_LQUERY_P(1);
|
|
bool res = array_iterator(la, ltq_regex, (void *) query, NULL);
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_BOOL(res);
|
|
}
|
|
|
|
Datum
|
|
_ltq_rregex(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_DATUM(DirectFunctionCall2(_ltq_regex,
|
|
PG_GETARG_DATUM(1),
|
|
PG_GETARG_DATUM(0)
|
|
));
|
|
}
|
|
|
|
Datum
|
|
_lt_q_regex(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *_tree = PG_GETARG_ARRAYTYPE_P(0);
|
|
ArrayType *_query = PG_GETARG_ARRAYTYPE_P(1);
|
|
lquery *query = (lquery *) ARR_DATA_PTR(_query);
|
|
bool res = false;
|
|
int num = ArrayGetNItems(ARR_NDIM(_query), ARR_DIMS(_query));
|
|
|
|
if (ARR_NDIM(_query) > 1)
|
|
ereport(ERROR,
|
|
(errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
|
|
errmsg("array must be one-dimensional")));
|
|
if (array_contains_nulls(_query))
|
|
ereport(ERROR,
|
|
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
|
|
errmsg("array must not contain nulls")));
|
|
|
|
while (num > 0)
|
|
{
|
|
if (array_iterator(_tree, ltq_regex, (void *) query, NULL))
|
|
{
|
|
res = true;
|
|
break;
|
|
}
|
|
num--;
|
|
query = (lquery *) NEXTVAL(query);
|
|
}
|
|
|
|
PG_FREE_IF_COPY(_tree, 0);
|
|
PG_FREE_IF_COPY(_query, 1);
|
|
PG_RETURN_BOOL(res);
|
|
}
|
|
|
|
Datum
|
|
_lt_q_rregex(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_DATUM(DirectFunctionCall2(_lt_q_regex,
|
|
PG_GETARG_DATUM(1),
|
|
PG_GETARG_DATUM(0)
|
|
));
|
|
}
|
|
|
|
|
|
Datum
|
|
_ltxtq_exec(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
ltxtquery *query = PG_GETARG_LTXTQUERY_P(1);
|
|
bool res = array_iterator(la, ltxtq_exec, (void *) query, NULL);
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_BOOL(res);
|
|
}
|
|
|
|
Datum
|
|
_ltxtq_rexec(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_DATUM(DirectFunctionCall2(_ltxtq_exec,
|
|
PG_GETARG_DATUM(1),
|
|
PG_GETARG_DATUM(0)
|
|
));
|
|
}
|
|
|
|
|
|
Datum
|
|
_ltree_extract_isparent(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
ltree *query = PG_GETARG_LTREE_P(1);
|
|
ltree *found,
|
|
*item;
|
|
|
|
if (!array_iterator(la, ltree_isparent, (void *) query, &found))
|
|
{
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_NULL();
|
|
}
|
|
|
|
item = (ltree *) palloc0(VARSIZE(found));
|
|
memcpy(item, found, VARSIZE(found));
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_POINTER(item);
|
|
}
|
|
|
|
Datum
|
|
_ltree_extract_risparent(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
ltree *query = PG_GETARG_LTREE_P(1);
|
|
ltree *found,
|
|
*item;
|
|
|
|
if (!array_iterator(la, ltree_risparent, (void *) query, &found))
|
|
{
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_NULL();
|
|
}
|
|
|
|
item = (ltree *) palloc0(VARSIZE(found));
|
|
memcpy(item, found, VARSIZE(found));
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_POINTER(item);
|
|
}
|
|
|
|
Datum
|
|
_ltq_extract_regex(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
lquery *query = PG_GETARG_LQUERY_P(1);
|
|
ltree *found,
|
|
*item;
|
|
|
|
if (!array_iterator(la, ltq_regex, (void *) query, &found))
|
|
{
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_NULL();
|
|
}
|
|
|
|
item = (ltree *) palloc0(VARSIZE(found));
|
|
memcpy(item, found, VARSIZE(found));
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_POINTER(item);
|
|
}
|
|
|
|
Datum
|
|
_ltxtq_extract_exec(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
ltxtquery *query = PG_GETARG_LTXTQUERY_P(1);
|
|
ltree *found,
|
|
*item;
|
|
|
|
if (!array_iterator(la, ltxtq_exec, (void *) query, &found))
|
|
{
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_NULL();
|
|
}
|
|
|
|
item = (ltree *) palloc0(VARSIZE(found));
|
|
memcpy(item, found, VARSIZE(found));
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
PG_FREE_IF_COPY(query, 1);
|
|
PG_RETURN_POINTER(item);
|
|
}
|
|
|
|
Datum
|
|
_lca(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *la = PG_GETARG_ARRAYTYPE_P(0);
|
|
int num = ArrayGetNItems(ARR_NDIM(la), ARR_DIMS(la));
|
|
ltree *item = (ltree *) ARR_DATA_PTR(la);
|
|
ltree **a,
|
|
*res;
|
|
|
|
if (ARR_NDIM(la) > 1)
|
|
ereport(ERROR,
|
|
(errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
|
|
errmsg("array must be one-dimensional")));
|
|
if (array_contains_nulls(la))
|
|
ereport(ERROR,
|
|
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
|
|
errmsg("array must not contain nulls")));
|
|
|
|
a = (ltree **) palloc(sizeof(ltree *) * num);
|
|
while (num > 0)
|
|
{
|
|
num--;
|
|
a[num] = item;
|
|
item = NEXTVAL(item);
|
|
}
|
|
res = lca_inner(a, ArrayGetNItems(ARR_NDIM(la), ARR_DIMS(la)));
|
|
pfree(a);
|
|
|
|
PG_FREE_IF_COPY(la, 0);
|
|
|
|
if (res)
|
|
PG_RETURN_POINTER(res);
|
|
else
|
|
PG_RETURN_NULL();
|
|
}
|