liuyu/pgvector
1
0
Fork 0
mirror of https://github.com/pgvector/pgvector.git synced 2026-07-01 02:02:10 +08:00
Code Issues Packages Projects Releases Wiki Activity

Improved vector_in

Browse Source
This commit is contained in:
Andrew Kane
2024-01-17 16:57:16 -08:00
parent 7390f31261
commit 4894dc5da1
1 changed files with 24 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/vector.c
View File

@@ -181,26 +181,24 @@ vector_in(PG_FUNCTION_ARGS)
int32 typmod = PG_GETARG_INT32(2);
float x[VECTOR_MAX_DIM];
int dim = 0;
char *pt;
char *pt = lit;
char *stringEnd;
Vector *result;
char *litcopy = pstrdup(lit);
char *str = litcopy;
bool malformed = false;
while (vector_isspace(*str))
str++;
while (vector_isspace(*pt))
pt++;
if (*str != '[')
if (*pt != '[')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed vector literal: \"%s\"", lit),
errdetail("Vector contents must start with \"[\".")));
str++;
pt = strtok(str, ",");
pt++;
stringEnd = pt;
while (pt != NULL && *stringEnd != ']')
while (*pt != '\0' && *pt != ',' && *stringEnd != ']')
{
if (dim == VECTOR_MAX_DIM)
ereport(ERROR,
@@ -229,12 +227,22 @@ vector_in(PG_FUNCTION_ARGS)
while (vector_isspace(*stringEnd))
stringEnd++;
if (*stringEnd != '\0' && *stringEnd != ']')
if (*stringEnd == '\0')
break;
if (*stringEnd != ',' && *stringEnd != ']')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("invalid input syntax for type vector: \"%s\"", lit)));
pt = strtok(NULL, ",");
pt = stringEnd + 1;
/* TODO Remove in 0.6.0 */
while (*pt == ',')
{
malformed = true;
pt++;
}
}
if (stringEnd == NULL || *stringEnd != ']')
@@ -255,22 +263,17 @@ vector_in(PG_FUNCTION_ARGS)
errmsg("malformed vector literal: \"%s\"", lit),
errdetail("Junk after closing right brace.")));
/* Ensure no consecutive delimiters since strtok skips */
for (pt = lit + 1; *pt != '\0'; pt++)
{
if (pt[-1] == ',' && *pt == ',')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed vector literal: \"%s\"", lit)));
}
/* TODO Remove in 0.6.0 */
if (malformed)
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed vector literal: \"%s\"", lit)));
if (dim < 1)
ereport(ERROR,
(errcode(ERRCODE_DATA_EXCEPTION),
errmsg("vector must have at least 1 dimension")));
pfree(litcopy);
CheckExpectedDim(typmod, dim);
result = InitVector(dim);