Function comdb2AddIndex

sqlite/src/comdb2build.c:5725–5786

Implementation of index added via CREATE\ALTER TABLE commands. */

/* Implementation of index added via CREATE\ALTER TABLE commands. */
void comdb2AddIndex(
    Parse *pParse,      /* All information about this parse */
    Token *pName,       /* Index name (Optional) */
    ExprList *pList,    /* A list of columns to be indexed */
    int onError,        /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
    Expr *pPIWhere,     /* WHERE clause for partial indices */
    const char *zStart, /* Start of WHERE clause token text */
    const char *zEnd,   /* End of WHERE clause token text */
    int sortOrder,      /* Sort order of primary key when pList==NULL */
    u8 idxType,         /* The index type */
    int withOpts,       /* WITH options (DATACOPY) */
    ExprList *pdList    /* A list of columns in the partial datacopy */
)
{
    if (comdb2IsPrepareOnly(pParse))
        return;

    struct comdb2_ddl_context *ctx = pParse->comdb2_ddl_ctx;
    char *keyname;

    if (use_sqlite_impl(pParse)) {
        assert(ctx == 0);
        assert(idxType != SQLITE_IDXTYPE_DUPKEY);
        sqlite3CreateIndex(pParse, 0, 0, 0, pList, onError, 0, 0, 0, 0,
                           idxType);
        return;
    }

    if (ctx == 0) {
        /* An error must have been set. */
        assert(pParse->rc != 0);
        return;
    }

    if ((ctx->flags & DDL_NOOP) != 0) {
        return;
    }

    if (pName && pName->n > 0) {
        keyname = comdb2_strndup(ctx->mem, pName->z, pName->n);
        if (keyname == 0)
            goto oom;
        sqlite3Dequote(keyname);
    } else {
        /* Key name not specified, one will be generated later. */
        keyname = 0;
    }

    comdb2AddIndexInt(pParse, keyname, pList, onError, pPIWhere, zStart,
                      zEnd, sortOrder, idxType, withOpts, pdList);
    if (pParse->rc)
        goto cleanup;

    return;

oom:
    setError(pParse, SQLITE_NOMEM, "System out of memory");