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Support comparisons with MDB_FLOAT and MDB_DOUBLE

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See https://github.com/mdbtools/mdbtools/issues/105
This commit is contained in:
Evan Miller 2020-09-02 21:24:24 -04:00
parent aa0ce8fb3e
commit a13936bd77
1 changed files with 26 additions and 18 deletions
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42
src/libmdb/sargs.c
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@ -107,28 +107,29 @@ static double poor_mans_trunc(double x)
int mdb_test_double(int op, double vd, double d)
{
int ret = 0;
switch (op) {
case MDB_EQUAL:
//fprintf(stderr, "comparing %lf and %lf\n", d, node->value.d);
if (vd == d) return 1;
ret = (vd == d);
break;
case MDB_GT:
if (vd < d) return 1;
ret = (vd < d);
break;
case MDB_LT:
if (vd > d) return 1;
ret = (vd > d);
break;
case MDB_GTEQ:
if (vd <= d) return 1;
ret = (vd <= d);
break;
case MDB_LTEQ:
if (vd >= d) return 1;
ret = (vd >= d);
break;
default:
fprintf(stderr, "Calling mdb_test_sarg on unknown operator. Add code to mdb_test_double() for operator %d\n",op);
break;
}
return 0;
return ret;
}
#if 0 // Obsolete
@ -210,42 +211,49 @@ mdb_test_sarg(MdbHandle *mdb, MdbColumn *col, MdbSargNode *node, MdbField *field
{
char tmpbuf[256];
char* val;
int ret;
int ret = 1;
if (node->op == MDB_ISNULL)
return field->is_null?1:0;
ret = field->is_null;
else if (node->op == MDB_NOTNULL)
return field->is_null?0:1;
ret = !field->is_null;
switch (col->col_type) {
case MDB_BOOL:
return mdb_test_int(node, !field->is_null);
ret = mdb_test_int(node, !field->is_null);
break;
case MDB_BYTE:
return mdb_test_int(node, (gint32)((char *)field->value)[0]);
ret = mdb_test_int(node, (gint32)((char *)field->value)[0]);
break;
case MDB_INT:
return mdb_test_int(node, (gint32)mdb_get_int16(field->value, 0));
ret = mdb_test_int(node, (gint32)mdb_get_int16(field->value, 0));
break;
case MDB_LONGINT:
return mdb_test_int(node, (gint32)mdb_get_int32(field->value, 0));
ret = mdb_test_int(node, (gint32)mdb_get_int32(field->value, 0));
break;
case MDB_FLOAT:
ret = mdb_test_double(node->op, node->value.d, mdb_get_single(field->value, 0));
break;
case MDB_DOUBLE:
ret = mdb_test_double(node->op, node->value.d, mdb_get_double(field->value, 0));
break;
case MDB_TEXT:
mdb_unicode2ascii(mdb, field->value, field->siz, tmpbuf, 256);
return mdb_test_string(node, tmpbuf);
ret = mdb_test_string(node, tmpbuf);
break;
case MDB_MEMO:
val = mdb_col_to_string(mdb, mdb->pg_buf, field->start, col->col_type, (gint32)mdb_get_int32(field->value, 0));
//printf("%s\n",val);
ret = mdb_test_string(node, val);
g_free(val);
return ret;
break;
case MDB_DATETIME:
return mdb_test_double(node->op, poor_mans_trunc(node->value.d), poor_mans_trunc(mdb_get_double(field->value, 0)));
ret = mdb_test_double(node->op, poor_mans_trunc(node->value.d), poor_mans_trunc(mdb_get_double(field->value, 0)));
break;
default:
fprintf(stderr, "Calling mdb_test_sarg on unknown type. Add code to mdb_test_sarg() for type %d\n",col->col_type);
break;
}
return 1;
return ret;
}
int
mdb_find_field(int col_num, MdbField *fields, int num_fields)