c_create_idx.c

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#include <string.h>
#include <grass/dbmi.h>
#include "macros.h"

int db_create_index(dbDriver * driver, dbIndex * index)
{
    int ret_code;

    /* start the procedure call */
    db__set_protocol_fds(driver->send, driver->recv);
    DB_START_PROCEDURE_CALL(DB_PROC_CREATE_INDEX);

    /* send the arguments to the procedure */
    DB_SEND_INDEX(index);

    /* get the return code for the procedure call */
    DB_RECV_RETURN_CODE(&ret_code);

    if (ret_code != DB_OK)
        return ret_code;        /* ret_code SHOULD == DB_FAILED */

    /* get results */
    DB_RECV_STRING(&index->indexName);

    return DB_OK;
}

int db_create_index2(dbDriver * driver, const char *table_name,
                     const char *column_name)
{
    int ret;
    dbIndex index;
    char buf[1000];
    const char *tbl;

    db_init_index(&index);
    db_alloc_index_columns(&index, 1);

    tbl = strchr(table_name, '.');
    if (tbl == NULL)
        tbl = table_name;
    else
        tbl++;

    sprintf(buf, "%s_%s", tbl, column_name);
    db_set_index_name(&index, buf);

    db_set_index_table_name(&index, table_name);
    db_set_index_column_name(&index, 0, column_name);
    db_set_index_type_unique(&index);

    ret = db_create_index(driver, &index);

    db_free_index(&index);

    return ret;
}