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odbc fixes, updates for v0.4

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This commit is contained in:
brianb
2002-04-03 23:02:53 +00:00
parent 9b8285d937
commit e2c3a9d818
16 changed files with 177 additions and 45 deletions
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26
src/libmdb/data.c
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@@ -81,6 +81,7 @@ int bit_num = (col_num - 1) % 8;
** value*/
static int mdb_xfer_bound_bool(MdbHandle *mdb, MdbColumn *col, int value)
{
col->cur_value_len = value;
if (col->bind_ptr) {
strcpy(col->bind_ptr, value ? "0" : "1");
}
@@ -90,6 +91,13 @@ static int mdb_xfer_bound_data(MdbHandle *mdb, int start, MdbColumn *col, int le
//if (!strcmp("Name",col->name)) {
//printf("start %d %d\n",start, len);
//}
if (len) {
col->cur_value_start = start;
col->cur_value_len = len;
} else {
col->cur_value_start = 0;
col->cur_value_len = 0;
}
if (col->bind_ptr) {
if (len) {
strcpy(col->bind_ptr,
@@ -114,6 +122,7 @@ int num_of_jumps=0, jumps_used=0;
int eod; /* end of data */
int delflag, lookupflag;
int bitmask_sz;
int col_ptr, deleted_columns=0;
unsigned char null_mask[33]; /* 256 columns max / 8 bits per byte */
unsigned char isnull;
@@ -210,11 +219,17 @@ unsigned char isnull;
num_of_jumps++;
}
if (mdb->jet_version==MDB_VER_JET4) {
eod = mdb_get_int16(mdb, row_end - 2 - var_cols*2 -bitmask_sz - num_of_jumps - 1);
col_start = mdb_get_int16(mdb, row_end - bitmask_sz - 2 - num_of_jumps - 1);
col_ptr = row_end - 2 - bitmask_sz - num_of_jumps - 1;
eod = mdb_get_int16(mdb, col_ptr - var_cols*2);
col_start = mdb_get_int16(mdb, col_ptr);
} else {
eod = mdb->pg_buf[row_end-1-var_cols-bitmask_sz-num_of_jumps];
col_start = mdb->pg_buf[row_end-bitmask_sz-1-num_of_jumps];
col_ptr = row_end - bitmask_sz - num_of_jumps - 1;
if (mdb->pg_buf[col_ptr]==0xFF) {
col_ptr--;
deleted_columns++;
}
eod = mdb->pg_buf[col_ptr - var_cols];
col_start = mdb->pg_buf[col_ptr];
}
@@ -243,8 +258,7 @@ unsigned char isnull;
len=mdb->pg_buf[row_end - bitmask_sz - var_cols_found * 2
- 2 - 1 - num_of_jumps * 2] - col_start;
} else {
len=mdb->pg_buf[row_end - bitmask_sz - var_cols_found
- 1 - num_of_jumps ] - col_start;
len=mdb->pg_buf[col_ptr - var_cols_found ] - col_start;
}
if (len<0)
len+=256;