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roaringbitmap.c
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roaringbitmap.c
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#include "roaringbitmap.h"
/* Created by ZEROMAX on 2017/3/20.*/
#define MAX_BITMAP_RANGE_END UINT64_C(0x100000000)
#define INT4_MIN -2147483648
#define INT4_MAX 2147483647
/* GUC variables */
typedef enum
{
RBITMAP_OUTPUT_ARRAY, /* output as int array */
RBITMAP_OUTPUT_BYTEA /* output as bytea */
}RBITMAPOutputFormat;
static const struct config_enum_entry output_format_options[] =
{
{"array", RBITMAP_OUTPUT_ARRAY, false},
{"bytea", RBITMAP_OUTPUT_BYTEA, false},
{NULL, 0, false}
};
static int rbitmap_output_format; /* output format */
void _PG_init(void);
/*
* Module load callback
*/
void
_PG_init(void)
{
/* Define custom GUC variables. */
DefineCustomEnumVariable("roaringbitmap.output_format",
"Selects output format of roaringbitmap.",
NULL,
&rbitmap_output_format,
RBITMAP_OUTPUT_BYTEA,
output_format_options,
PGC_USERSET,
0,
NULL,
NULL,
NULL);
}
bool
ArrayContainsNulls(ArrayType *array) {
int nelems;
bits8 *bitmap;
int bitmask;
/* Easy answer if there's no null bitmap */
if (!ARR_HASNULL(array))
return false;
nelems = ArrayGetNItems(ARR_NDIM(array), ARR_DIMS(array));
bitmap = ARR_NULLBITMAP(array);
/* check whole bytes of the bitmap byte-at-a-time */
while (nelems >= 8) {
if (*bitmap != 0xFF)
return true;
bitmap++;
nelems -= 8;
}
/* check last partial byte */
bitmask = 1;
while (nelems > 0) {
if ((*bitmap & bitmask) == 0)
return true;
bitmask <<= 1;
nelems--;
}
return false;
}
//rb_from_bytea
Datum rb_from_bytea(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(rb_from_bytea);
Datum
rb_from_bytea(PG_FUNCTION_ARGS) {
bytea *serializedbytes = PG_GETARG_BYTEA_P(0);
roaring_bitmap_t *r1;
r1 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
roaring_bitmap_free(r1);
PG_RETURN_BYTEA_P(serializedbytes);
}
//roaringbitmap_in
Datum roaringbitmap_in(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(roaringbitmap_in);
Datum
roaringbitmap_in(PG_FUNCTION_ARGS) {
char *ptr = PG_GETARG_CSTRING(0);
long l;
char *badp;
roaring_bitmap_t *r1;
size_t expectedsize;
bytea *serializedbytes;
Datum dd;
if(*ptr == '\\' && *(ptr+1) == 'x') {
/* bytea input */
dd = DirectFunctionCall1(byteain, PG_GETARG_DATUM(0));
serializedbytes = DatumGetByteaP(dd);
r1 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
roaring_bitmap_free(r1);
return dd;
}
/* else int array input */
/* Find the head char '{' */
while (*ptr && isspace((unsigned char) *ptr))
ptr++;
if (*ptr !='{')
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("malformed bitmap literal")));
ptr++;
r1 = roaring_bitmap_create();
while (*ptr && isspace((unsigned char) *ptr))
ptr++;
if (*ptr != '}') {
while (*ptr) {
/* Parse int element */
errno = 0;
l = strtol(ptr, &badp, 10);
/* We made no progress parsing the string, so bail out */
if (ptr == badp){
roaring_bitmap_free(r1);
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("invalid input syntax for %s: \"%s\"",
"integer", ptr)));
}
if (errno == ERANGE
|| l < INT4_MIN || l > INT4_MAX
){
roaring_bitmap_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type %s", ptr,
"integer")));
}
/* Add int element to bitmap */
roaring_bitmap_add(r1, l);
/* Skip any trailing whitespace after the int element */
ptr = badp;
while (*ptr && isspace((unsigned char) *ptr))
ptr++;
/* Find the element terminator ',' */
if (*ptr != ',')
break;
ptr++;
/* Skip any trailing whitespace after the terminator */
while (*ptr && isspace((unsigned char) *ptr))
ptr++;
}
/* Find the tail char '{' */
if (*ptr !='}'){
roaring_bitmap_free(r1);
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("malformed bitmap literal")));
}
}
/* Check if input end */
ptr++;
while (*ptr && isspace((unsigned char) *ptr))
ptr++;
if (*ptr !='\0'){
roaring_bitmap_free(r1);
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("malformed bitmap literal")));
}
expectedsize = roaring_bitmap_portable_size_in_bytes(r1);
serializedbytes = (bytea *) palloc(VARHDRSZ + expectedsize);
roaring_bitmap_portable_serialize(r1, VARDATA(serializedbytes));
roaring_bitmap_free(r1);
SET_VARSIZE(serializedbytes, VARHDRSZ + expectedsize);
PG_RETURN_BYTEA_P(serializedbytes);
}
//roaringbitmap_out
Datum roaringbitmap_out(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(roaringbitmap_out);
Datum
roaringbitmap_out(PG_FUNCTION_ARGS) {
bytea *serializedbytes;
roaring_uint32_iterator_t iterator;
StringInfoData buf;
roaring_bitmap_t *r1;
if(rbitmap_output_format == RBITMAP_OUTPUT_BYTEA){
return DirectFunctionCall1(byteaout, PG_GETARG_DATUM(0));
}
serializedbytes = PG_GETARG_BYTEA_P(0);
r1 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
initStringInfo(&buf);
appendStringInfoChar(&buf, '{');
roaring_init_iterator(r1, &iterator);
if(iterator.has_value) {
appendStringInfo(&buf, "%d", (int)iterator.current_value);
roaring_advance_uint32_iterator(&iterator);
while(iterator.has_value) {
appendStringInfo(&buf, ",%d", (int)iterator.current_value);
roaring_advance_uint32_iterator(&iterator);
}
}
appendStringInfoChar(&buf, '}');
PG_RETURN_CSTRING(buf.data);
}
//roaringbitmap_recv
Datum roaringbitmap_recv(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(roaringbitmap_recv);
Datum
roaringbitmap_recv(PG_FUNCTION_ARGS) {
return DirectFunctionCall1(bytearecv, PG_GETARG_DATUM(0));
}
//roaringbitmap_send
Datum roaringbitmap_send(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(roaringbitmap_send);
Datum
roaringbitmap_send(PG_FUNCTION_ARGS) {
bytea *bp = PG_GETARG_BYTEA_P(0);
StringInfoData buf;
pq_begintypsend(&buf);
pq_sendbytes(&buf, VARDATA(bp), VARSIZE(bp) - VARHDRSZ);
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
//bitmap_or
PG_FUNCTION_INFO_V1(rb_or);
Datum rb_or(PG_FUNCTION_ARGS);
Datum
rb_or(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_bitmap_t *r1;
roaring_bitmap_t *r2;
size_t expectedsize;
bytea *serializedbytes;
r1 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes2));
if (!r2) {
roaring_bitmap_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
roaring_bitmap_or_inplace(r1, r2);
roaring_bitmap_free(r2);
expectedsize = roaring_bitmap_portable_size_in_bytes(r1);
serializedbytes = (bytea *) palloc(VARHDRSZ + expectedsize);
roaring_bitmap_portable_serialize(r1, VARDATA(serializedbytes));
roaring_bitmap_free(r1);
SET_VARSIZE(serializedbytes, VARHDRSZ + expectedsize);
PG_RETURN_BYTEA_P(serializedbytes);
}
//bitmap_or_cardinality
PG_FUNCTION_INFO_V1(rb_or_cardinality);
Datum rb_or_cardinality(PG_FUNCTION_ARGS);
Datum
rb_or_cardinality(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
uint64 card1;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_or_cardinality(r1, r2, &card1);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_INT64(card1);
}
//bitmap_and
PG_FUNCTION_INFO_V1(rb_and);
Datum rb_and(PG_FUNCTION_ARGS);
Datum
rb_and(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
roaring_bitmap_t *r;
size_t expectedsize;
bytea *serializedbytes;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
r = roaring_buffer_and(r1, r2);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if (!r) {
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
expectedsize = roaring_bitmap_portable_size_in_bytes(r);
serializedbytes = (bytea *) palloc(VARHDRSZ + expectedsize);
roaring_bitmap_portable_serialize(r, VARDATA(serializedbytes));
roaring_bitmap_free(r);
SET_VARSIZE(serializedbytes, VARHDRSZ + expectedsize);
PG_RETURN_BYTEA_P(serializedbytes);
}
//bitmap_and_cardinality
PG_FUNCTION_INFO_V1(rb_and_cardinality);
Datum rb_and_cardinality(PG_FUNCTION_ARGS);
Datum
rb_and_cardinality(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
uint64 card1;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_and_cardinality(r1, r2, &card1);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_INT64(card1);
}
//bitmap_andnot
PG_FUNCTION_INFO_V1(rb_andnot);
Datum rb_andnot(PG_FUNCTION_ARGS);
Datum
rb_andnot(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
roaring_bitmap_t *r;
size_t expectedsize;
bytea *serializedbytes;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
r = roaring_buffer_andnot(r1, r2);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if (!r) {
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
expectedsize = roaring_bitmap_portable_size_in_bytes(r);
serializedbytes = (bytea *) palloc(VARHDRSZ + expectedsize);
roaring_bitmap_portable_serialize(r, VARDATA(serializedbytes));
roaring_bitmap_free(r);
SET_VARSIZE(serializedbytes, VARHDRSZ + expectedsize);
PG_RETURN_BYTEA_P(serializedbytes);
}
//bitmap_andnot_cardinality
PG_FUNCTION_INFO_V1(rb_andnot_cardinality);
Datum rb_andnot_cardinality(PG_FUNCTION_ARGS);
Datum
rb_andnot_cardinality(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
uint64 card1;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_andnot_cardinality(r1, r2, &card1);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_INT64(card1);
}
//bitmap_xor
PG_FUNCTION_INFO_V1(rb_xor);
Datum rb_xor(PG_FUNCTION_ARGS);
Datum
rb_xor(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_bitmap_t *r1;
roaring_bitmap_t *r2;
size_t expectedsize;
bytea *serializedbytes;
r1 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes2));
if (!r2) {
roaring_bitmap_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
roaring_bitmap_xor_inplace(r1, r2);
roaring_bitmap_free(r2);
expectedsize = roaring_bitmap_portable_size_in_bytes(r1);
serializedbytes = (bytea *) palloc(VARHDRSZ + expectedsize);
roaring_bitmap_portable_serialize(r1, VARDATA(serializedbytes));
roaring_bitmap_free(r1);
SET_VARSIZE(serializedbytes, VARHDRSZ + expectedsize);
PG_RETURN_BYTEA_P(serializedbytes);
}
//bitmap_xor_cardinality
PG_FUNCTION_INFO_V1(rb_xor_cardinality);
Datum rb_xor_cardinality(PG_FUNCTION_ARGS);
Datum
rb_xor_cardinality(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
uint64 card1;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_xor_cardinality(r1, r2, &card1);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_INT64(card1);
}
//bitmap cardinality
PG_FUNCTION_INFO_V1(rb_cardinality);
Datum rb_cardinality(PG_FUNCTION_ARGS);
Datum
rb_cardinality(PG_FUNCTION_ARGS) {
bytea *data = PG_GETARG_BYTEA_P(0);
roaring_buffer_t *r1;
uint64 card;
r1 = roaring_buffer_create(VARDATA(data),
VARSIZE(data));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
card = roaring_buffer_get_cardinality(r1);
roaring_buffer_free(r1);
PG_RETURN_INT64(card);
}
//bitmap is empty
PG_FUNCTION_INFO_V1(rb_is_empty);
Datum rb_is_empty(PG_FUNCTION_ARGS);
Datum
rb_is_empty(PG_FUNCTION_ARGS) {
bytea *data = PG_GETARG_BYTEA_P(0);
roaring_buffer_t *r1;
bool isempty;
r1 = roaring_buffer_create(VARDATA(data),
VARSIZE(data));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
isempty = roaring_buffer_is_empty(r1);
roaring_buffer_free(r1);
PG_RETURN_INT64(isempty);
}
//bitmap contains one value
PG_FUNCTION_INFO_V1(rb_exsit);
Datum rb_exsit(PG_FUNCTION_ARGS);
Datum
rb_exsit(PG_FUNCTION_ARGS) {
bytea *data = PG_GETARG_BYTEA_P(0);
uint32 value = PG_GETARG_UINT32(1);
roaring_buffer_t *r1;
bool isexsit;
bool ret;
r1 = roaring_buffer_create(VARDATA(data),
VARSIZE(data));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
ret = roaring_buffer_contains(r1, value, &isexsit);
roaring_buffer_free(r1);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_BOOL(isexsit);
}
//bitmap equals
PG_FUNCTION_INFO_V1(rb_equals);
Datum rb_equals(PG_FUNCTION_ARGS);
Datum
rb_equals(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
bool isequal;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_equals(r1, r2, &isequal);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_BOOL(isequal);
}
//bitmap not equals
PG_FUNCTION_INFO_V1(rb_not_equals);
Datum rb_not_equals(PG_FUNCTION_ARGS);
Datum
rb_not_equals(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
bool isequal;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_equals(r1, r2, &isequal);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_BOOL(!isequal);
}
//bitmap intersect
PG_FUNCTION_INFO_V1(rb_intersect);
Datum rb_intersect(PG_FUNCTION_ARGS);
Datum
rb_intersect(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
bool isintersect;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_intersect(r1, r2, &isintersect);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_BOOL(isintersect);
}
//bitmap contains
PG_FUNCTION_INFO_V1(rb_contains);
Datum rb_contains(PG_FUNCTION_ARGS);
Datum
rb_contains(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
bool iscontain;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_is_subset(r2, r1, &iscontain);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_BOOL(iscontain);
}
//bitmap contained
PG_FUNCTION_INFO_V1(rb_containedby);
Datum rb_containedby(PG_FUNCTION_ARGS);
Datum
rb_containedby(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
bool iscontained;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_is_subset(r1, r2, &iscontained);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_BOOL(iscontained);
}
//bitmap jaccard distance
PG_FUNCTION_INFO_V1(rb_jaccard_dist);
Datum rb_jaccard_dist(PG_FUNCTION_ARGS);
Datum
rb_jaccard_dist(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
bytea *serializedbytes2 = PG_GETARG_BYTEA_P(1);
roaring_buffer_t *r1;
roaring_buffer_t *r2;
double jaccard_dist;
bool ret;
r1 = roaring_buffer_create(VARDATA(serializedbytes1),
VARSIZE(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
r2 = roaring_buffer_create(VARDATA(serializedbytes2),
VARSIZE(serializedbytes2));
if (!r2) {
roaring_buffer_free(r1);
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
}
ret = roaring_buffer_jaccard_index(r1, r2, &jaccard_dist);
roaring_buffer_free(r1);
roaring_buffer_free(r2);
if(!ret)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
PG_RETURN_FLOAT8(jaccard_dist);
}
//bitmap add
PG_FUNCTION_INFO_V1(rb_add);
Datum rb_add(PG_FUNCTION_ARGS);
Datum
rb_add(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
uint32 value = PG_GETARG_UINT32(1);
size_t expectedsize;
bytea *serializedbytes;
roaring_bitmap_t *r1 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
roaring_bitmap_add(r1, value);
expectedsize = roaring_bitmap_portable_size_in_bytes(r1);
serializedbytes = (bytea *) palloc(VARHDRSZ + expectedsize);
roaring_bitmap_portable_serialize(r1, VARDATA(serializedbytes));
roaring_bitmap_free(r1);
SET_VARSIZE(serializedbytes, VARHDRSZ + expectedsize);
PG_RETURN_BYTEA_P(serializedbytes);
}
//bitmap remove
PG_FUNCTION_INFO_V1(rb_remove);
Datum rb_remove(PG_FUNCTION_ARGS);
Datum
rb_remove(PG_FUNCTION_ARGS) {
bytea *serializedbytes1 = PG_GETARG_BYTEA_P(0);
uint32 value = PG_GETARG_UINT32(1);
size_t expectedsize;
bytea *serializedbytes;
roaring_bitmap_t *r1 = roaring_bitmap_portable_deserialize(VARDATA(serializedbytes1));
if (!r1)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("bitmap format is error")));
roaring_bitmap_remove(r1, value);
expectedsize = roaring_bitmap_portable_size_in_bytes(r1);
serializedbytes = (bytea *) palloc(VARHDRSZ + expectedsize);
roaring_bitmap_portable_serialize(r1, VARDATA(serializedbytes));
roaring_bitmap_free(r1);
SET_VARSIZE(serializedbytes, VARHDRSZ + expectedsize);
PG_RETURN_BYTEA_P(serializedbytes);
}
//bitmap minimum
PG_FUNCTION_INFO_V1(rb_min);
Datum rb_min(PG_FUNCTION_ARGS);